Power Electronics Circuits. Prof. Daniel Costinett. ECE 482 Lecture 3 January 26, 2017

Size: px
Start display at page:

Download "Power Electronics Circuits. Prof. Daniel Costinett. ECE 482 Lecture 3 January 26, 2017"

Transcription

1 Power Electronics Circuits Prof. Daniel Costinett ECE 482 Lecture 3 January 26, 2017 Announcements Experiment 1 Report Due Tuesday Prelab 3 due Thursday All assignments turned in digitally By e mailing to Daniel.costinett@utk.edu Include [ECE 482] in the subject Parts kit purchased prior to Tuesday s class Capture waveforms, even if something is malfunctioning, for report

2 Outline 1. Motor Back EMF Shape 2. Power Converter Layout 3. Loss Analysis and Design Low Frequency Conduction Losses Inductor AC Losses Core Losses Inductor Design Approaches PMSM vs BLDC BACK EMF SHAPE

3 Single Phase Motor (Simplified) Winding Voltage Equation

4 Shape of Back EMF PMSM Winding Sinusoidal back EMF achieved with sinusoidal winding distribution Generally termed Permanent Magnet Synchronous Motor (PMSM) BLDC Motor Winding motor.swf Brushless DC (BLDC) Motors are not wound sinusoidally This results in Trapezoidal back emf, rather than sinusoidal Can be driven simply with Square waves to achieve relatively low torque ripple

5 Outer vs. Inner Rotor Traditional motors are inner rotor On e bike, need hub to remain stationary and outer wheel to spin Motor Teeth/Poles Example

6 Stator Winding Complete winding of Phase A Complete winding of all phases 56 pole 63 teeth Rotor and Poles Outer rotor (to which spokes/wheel are attached) Magnets alternate N S

7 Shape of Back EMF 8 6 Normalized Coupled Flux [Tesla*coil] stator ABC theta [deg] 33 Teeth, 22 Poles Teeth/Pole/Phase = 0.5 rotor S N Shape of Back EMF 8 6 Normalized Coupled Flux [Tesla*coil] theta [deg] 36 Teeth, 22 Poles Teeth/Pole/Phase = stator ABC rotor S N

8 Simulation of BLDC and PMSM 15 Experiment 3

9 Design Assessment 1/31/2017

10 Boost Design POWER CONVERTER LAYOUT

11 Power Converter Layout: Buck Example Parasitic Wire Inductances

12 Loop Minimization Effect of Loop Inductance L loop = 1.6nH L loop = 0.4nH D Reusch, Optimizing PCB Layout

13 Half Bridge Gate Drive Waveforms Gate driver chip must implement v gs waveforms Sources will have pulsating currents and need decoupling Driving a Power MOSFET Switch ~ MOSFET is off when v gs < V th 3 V MOSFET fully on when v gs is sufficiently large (10 15 V) Warning: MOSFET gate oxide breaks down and the device fails when v gs > 20 V. Fast turn on or turn off (10 s of ns) requires a large spike (1 2 A) of gate current to charge or discharge the gate capacitance MOSFET gate driver is a logic buffer that has high output current capability

14 Driving a Power MOSFET Switch PWM Pulses from controller/ Fcn Generator Gate Source Drain MOSFET gate driver is used as a logic buffer with high output current (~1.8 A) capability The amplitude of the gate voltage equals the supply voltage VCC Decoupling capacitors are necessary at all supply pins of LM5104 (and all ICs) Gate resistance used to slow dv/dt at switch node Gate Drive Implementation Gate driver is cascades back half bridges of decreasing size to obtain quick rise times Reminder: keep loops which handle pulsating current small by decoupling and making close connections

15 Decoupling Always add bypass capacitor at power supply for any IC/reference Use small valued (~100nf), low ESR and ESL capacitors (ceramic) Limit loop for any di/dt Capacitor Sizing Notes Δ Area of current pulse is total charge supplied to gate of capacitor All charge must be supplied from gate drive decoupling capacitor

16 Gate Drive Losses, Gate charge is supplied through driver resistance during switch turn on Gate charge is dissipated in gate driver on switch turn off High Side Signal Ground Gate driver chip must implement v gs waveforms Issue: source of Q 2 is not grounded

17 Generating Floating Supply Isolated supplies sometimes used; Isolated DC DC, batteries Bootstrap concept: capacitor can be charged when V s is low, then switched A Note on Grounding

18 UCC27211a Internal Diagram Fairchild Semi App Note AN 6076

19 Parasitics to be Aware of Power Loop Inductances Persson E., What really limits MOSFET performance: silicon, package, driver or circuit board?

20 Complete Routing of Signal Always consider return path Ground plane can help, but still need to consider the path and optimize Star Grounding Vs. Daisy Chain

21 Another View Kester, W. Tips about printed circuit board design: Part 1 Dealing with harmful PCB effects Kelvin Connection

22 Efficiency Measurement Boost Converter POWER CONVERTER DESIGN AND LOSS ANALYSIS

23 Converter Design Design Specifications Performance Specification MOSFET Selection Analytical Model Loss Model Thermal Model Cost Model. Inductor Design Switching Frequency Design Assessment Analytical Loss Modeling High efficiency approximation is acceptable for hand calculations, as long as it is justified Solve ideal waveforms of lossless converter, then calculate losses Argue which losses need to be included, and which may be neglected Rough approximation to gain insight into significance

24 Additional Resources Additional lectures in ECE /schedule.php Accessible only from campus network Switching Overlap Loss L4 L5 Device Capacitances L6 L7 Magnetics Losses L19(2 nd half) and L20 Boost Converter Loss Analysis Begin by solving important waveforms throughout converter assuming lossless operation

25 Power Stage Losses Low Frequency Losses MOSFETS Body Diodes Inductor Capacitors R on V F R d R dc ESR Frequency Dependent Losses C oss Overlap P g T d cond. C d Reverse Recovery Skin Effect Core Loss Fringing Proximity Dielectric Losses LOW FREQUENCY CONDUCTION LOSSES

26 MOSFET Equivalent Circuit Considering only power stage losses (gate drive neglected) MOSFET operated as power switch Intrinsic body diode behaviors considered using normal diode analysis MOSFET On Resistance 1 On resistance extracted from datasheet waveforms Significantly dependent on V gs amplitude, temperature

27 Boost Converter RMS Currents MOSFET conduction losses due to (r ds ) on depend given as,, MOSFET Conduction Losses RMS values of commonly observed waveforms appendix from Power Book

28 Capacitor Loss Model Operation well below resonance All loss mechanisms in a capacitor are generally lumped into an empirical loss model Equivalent Series Resistance (ESR) is highly frequency dependent Datasheets may give effective impedance at a frequency, or loss factor: 2 tan DC Inductor Resistance DC Resistance given by At room temp, ρ = Ω cm At 100 C, ρ = Ω cm Losses due to DC current:,,

29 Inductor Conduction Losses Conduction losses dependent on RMS current through inductor Switching Loss

30 Switching Loss Modeling V gs1 t V gs2 t V sw t 59 Types of Switching Loss 1. Gate Charge Loss 2. Overlap Loss 3. Capacitive Loss 4. Body Diode Conduction 5. Reverse Recovery 6. Parasitic Inductive Losses 7. Anomalous Losses

31 Gate Charge Loss P Q V g g cc f s V gs2 Overlap Loss M 1 t M 2 V ds2 t i d2 t P overlap 1 tsw I LV 2 T s

32 Lump Switched Node Capacitance Consider a single equivalent capacitor at switched node which combines energy storage due to all four semiconductor devices Diode Loss Model Example loss model includes resistance and forward voltage drop extracted from datasheet 1

33 Diode Reverse Recovery Diodes will turn on during dead time intervals Significant reverse recovery possible on both body diode and external diode E on, rr I L i L t rr Q rr V bus INDUCTOR AC LOSSES

34 Skin Effect in Copper Wire Current profile at high frequency is exponential function of distance from center with characteristic length δ AC Resistance, r w δ,

35 Skin Depth Proximity Effect In foil conductor closely spaced with h >> δ, flux between layers generates additional current according to Lentz s law., Power loss in layer 2:, + 2, See Fundamentals of Power Electronics, Section Needs modification for non foil conductors

36 Simulation Example 1/31/2017

37 Frequency: 1 khz Frequency: 100 khz

38 Frequency: 1 MHz Frequency: 10 MHz

39 Fringing Near air gap, flux may bow out significantly, causing additional eddy current losses in nearby conductors Physical Origin of Core Loss Magnetic material is divided into domains of saturated material Both Hysteresis and Eddy Current losses occur from domain wall shifting Reinert, J.; Brockmeyer, A.; De Doncker, R.W.;, "Calculation of losses in ferro- and ferrimagnetic materials based on the modified Steinmetz equation,"

40 Inductor Core Loss Governed by Steinmetz Equation: Δ [mw/cm 3 ] Parameters K fe, α, and β extracted from manufacturer data [mw] Δ Δ small losses with small ripple Steinmetz Parameter Extraction

41 Ferroxcube Curve Fit Parameters Non Sinusoidal Waveforms Modified Steinmetz Equation (MSE) Guess that losses depend on Calculate and find frequency of equivalent sinusoid Albach,Durbau and Brockmeyer, 1996 Reinert, Brockmeyer, and Doncker, 1999

42 NSE/iGSE Simple Formula for Square wave voltages: Van den Bossche, A.; Valchev, V.C.; Georgiev, G.B.;, "Measurement and loss model of ferrites with non sinusoidal waveforms, K. Venkatachalam; C. R. Sullivan; T. Abdallah; H. Tacca, Accurate prediction of ferrite core loss with nonsinusoidal waveforms using only Steinmetz parameters INDUCTOR DESIGN

43 Inductor Design Freedoms: 1. Core Size and Material 2. Number of turns and wire gauge 3. Length of Air Gap Constraints: 1. Obtain Designed L 2. Prevent Saturation 3. Minimize Losses Equivalent Circuit

44 Minimization of Losses For given core, number of turns can be used to index possible designs, with air gap solved after (and limited) to get correct inductance A minimum sum of the two exists and can be solved Design always subject to constraint B max < B sat Spreadsheet Design Use of spreadsheet permits simple iteration of design Can easily change core, switching frequency, loss constraints, etc.

45 Matlab (Programmatic) Design Matlab, or similar, permits more powerful iteration and plotting/insight into design variation Closed Form Design Methods Fundamentals of Power Electronics Ch Step by Step design methods Simplified, and may require additional calculations

46 K g and K gfe Methods Two closed form methods to solve for the optimal inductor design under certain constraints/assumptions Neither method considers losses other than DC copper and (possibly) steinmetz core loss Both methods particularly well suited to spreadsheet/iterative design procedures Losses K g DC Copper (specified) K gfe DC Copper, SE Core Loss (optimized) Saturation Specified Checked After B max Specified Optimized K g Method Method useful for filter inductors where ΔB is small Core loss is not included, but may be significant particularly if large ripple is present Copper loss is specified through a set target resistance The desired B max is given as a constraint Method does not check feasibility of design; must ensure that air gap is not extremely large or wire size excessively small Simple first cut design technique; useful for determining approximate core size required Step by step design procedure included on website

47 K gfe Method Method useful for cases when core loss and copper loss are expected to be significant Saturation is not included in the method, rather it must be checked afterward Enforces a design where the sum of core and copper is minimized

48 K gfe Procedure n n n k k 1 n1 A wk 2KuW n 2 A Verify

49 K gfe Method: Summary Method enforces an operating ΔB in which core and copper losses are minimized Only takes into account losses from standard Steinmetz equation; not correct unless waveforms are sinusoidal Does not consider high frequency losses Step by step design procedure included on website

Announcements. Outline. Power Electronics Circuits. malfunctioning, for report. Experiment 1 Report Due Tuesday

Announcements. Outline. Power Electronics Circuits. malfunctioning, for report. Experiment 1 Report Due Tuesday Power Electronics Circuits Prof. Daniel Costinett ECE 482 Lecture 3 January 26, 2017 Outline 1. Motor Back EMF Shape 2. Power Converter Layout 3. Loss Analysis and Design Low Frequency Conduction Losses

More information

GaN in Practical Applications

GaN in Practical Applications in Practical Applications 1 CCM Totem Pole PFC 2 PFC: applications and topology Typical AC/DC PSU 85-265 V AC 400V DC for industrial, medical, PFC LLC 12, 24, 48V DC telecomm and server applications. PFC

More information

Lab Experiments. Boost converter (Experiment 2) Control circuit (Experiment 1) Power diode. + V g. C Power MOSFET. Load.

Lab Experiments. Boost converter (Experiment 2) Control circuit (Experiment 1) Power diode. + V g. C Power MOSFET. Load. Lab Experiments L Power diode V g C Power MOSFET Load Boost converter (Experiment 2) V ref PWM chip UC3525A Gate driver TSC427 Control circuit (Experiment 1) Adjust duty cycle D The UC3525 PWM Control

More information

Lecture 6 ECEN 4517/5517

Lecture 6 ECEN 4517/5517 Lecture 6 ECEN 4517/5517 Experiment 4: inverter system Battery 12 VDC HVDC: 120-200 VDC DC-DC converter Isolated flyback DC-AC inverter H-bridge v ac AC load 120 Vrms 60 Hz d d Feedback controller V ref

More information

Achieving High Power Density Designs in DC-DC Converters

Achieving High Power Density Designs in DC-DC Converters Achieving High Power Density Designs in DC-DC Converters Agenda Marketing / Product Requirement Design Decision Making Translating Requirements to Specifications Passive Losses Active Losses Layout / Thermal

More information

PCB layout guidelines. From the IGBT team at IR September 2012

PCB layout guidelines. From the IGBT team at IR September 2012 PCB layout guidelines From the IGBT team at IR September 2012 1 PCB layout and parasitics Parasitics (unwanted L, R, C) have much influence on switching waveforms and losses. The IGBT itself has its own

More information

Features MIC2193BM. Si9803 ( 2) 6.3V ( 2) VDD OUTP COMP OUTN. Si9804 ( 2) Adjustable Output Synchronous Buck Converter

Features MIC2193BM. Si9803 ( 2) 6.3V ( 2) VDD OUTP COMP OUTN. Si9804 ( 2) Adjustable Output Synchronous Buck Converter MIC2193 4kHz SO-8 Synchronous Buck Control IC General Description s MIC2193 is a high efficiency, PWM synchronous buck control IC housed in the SO-8 package. Its 2.9V to 14V input voltage range allows

More information

Laboratory Investigation of Variable Speed Control of Synchronous Generator With a Boost Converter for Wind Turbine Applications

Laboratory Investigation of Variable Speed Control of Synchronous Generator With a Boost Converter for Wind Turbine Applications Laboratory Investigation of Variable Speed Control of Synchronous Generator With a Boost Converter for Wind Turbine Applications Ranjan Sharma Technical University of Denmark ransharma@gmail.com Tonny

More information

Lecture 4 ECEN 4517/5517

Lecture 4 ECEN 4517/5517 Lecture 4 ECEN 4517/5517 Experiment 3 weeks 2 and 3: interleaved flyback and feedback loop Battery 12 VDC HVDC: 120-200 VDC DC-DC converter Isolated flyback DC-AC inverter H-bridge v ac AC load 120 Vrms

More information

Unleash SiC MOSFETs Extract the Best Performance

Unleash SiC MOSFETs Extract the Best Performance Unleash SiC MOSFETs Extract the Best Performance Xuning Zhang, Gin Sheh, Levi Gant and Sujit Banerjee Monolith Semiconductor Inc. 1 Outline SiC devices performance advantages Accurate test & measurement

More information

4.5V to 32V Input High Current LED Driver IC For Buck or Buck-Boost Topology CN5816. Features: SHDN COMP OVP CSP CSN

4.5V to 32V Input High Current LED Driver IC For Buck or Buck-Boost Topology CN5816. Features: SHDN COMP OVP CSP CSN 4.5V to 32V Input High Current LED Driver IC For Buck or Buck-Boost Topology CN5816 General Description: The CN5816 is a current mode fixed-frequency PWM controller for high current LED applications. The

More information

Improvements of LLC Resonant Converter

Improvements of LLC Resonant Converter Chapter 5 Improvements of LLC Resonant Converter From previous chapter, the characteristic and design of LLC resonant converter were discussed. In this chapter, two improvements for LLC resonant converter

More information

Unlocking the Power of GaN PSMA Semiconductor Committee Industry Session

Unlocking the Power of GaN PSMA Semiconductor Committee Industry Session Unlocking the Power of GaN PSMA Semiconductor Committee Industry Session March 24 th 2016 Dan Kinzer, COO/CTO dan.kinzer@navitassemi.com 1 Mobility (cm 2 /Vs) EBR Field (MV/cm) GaN vs. Si WBG GaN material

More information

CONTENTS. Chapter 1. Introduction to Power Conversion 1. Basso_FM.qxd 11/20/07 8:39 PM Page v. Foreword xiii Preface xv Nomenclature

CONTENTS. Chapter 1. Introduction to Power Conversion 1. Basso_FM.qxd 11/20/07 8:39 PM Page v. Foreword xiii Preface xv Nomenclature Basso_FM.qxd 11/20/07 8:39 PM Page v Foreword xiii Preface xv Nomenclature xvii Chapter 1. Introduction to Power Conversion 1 1.1. Do You Really Need to Simulate? / 1 1.2. What You Will Find in the Following

More information

Conventional Single-Switch Forward Converter Design

Conventional Single-Switch Forward Converter Design Maxim > Design Support > Technical Documents > Application Notes > Amplifier and Comparator Circuits > APP 3983 Maxim > Design Support > Technical Documents > Application Notes > Power-Supply Circuits

More information

Optimizing Custom Magnetics for High-Performance Power Supplies

Optimizing Custom Magnetics for High-Performance Power Supplies Optimizing Custom Magnetics for High-Performance Power Supplies Michael Seeman, Ph.D. Founder / CEO. mike@eta1power.com April 2018 PELS Seminar 2018. Outline What is Power Supply Optimization? Performance

More information

Fundamentals of Power Electronics

Fundamentals of Power Electronics Fundamentals of Power Electronics SECOND EDITION Robert W. Erickson Dragan Maksimovic University of Colorado Boulder, Colorado Preface 1 Introduction 1 1.1 Introduction to Power Processing 1 1.2 Several

More information

Designing reliable and high density power solutions with GaN. Created by: Masoud Beheshti Presented by: Paul L Brohlin

Designing reliable and high density power solutions with GaN. Created by: Masoud Beheshti Presented by: Paul L Brohlin Designing reliable and high density power solutions with GaN Created by: Masoud Beheshti Presented by: Paul L Brohlin What will I get out of this presentation? Why GaN? Integration for System Performance

More information

Background (What Do Line and Load Transients Tell Us about a Power Supply?)

Background (What Do Line and Load Transients Tell Us about a Power Supply?) Maxim > Design Support > Technical Documents > Application Notes > Power-Supply Circuits > APP 3443 Keywords: line transient, load transient, time domain, frequency domain APPLICATION NOTE 3443 Line and

More information

AAT4910 PRODUCT DATASHEET. 28V Half-Bridge Dual N-Channel MOSFET Driver. General Description. Features. Applications. Typical Application

AAT4910 PRODUCT DATASHEET. 28V Half-Bridge Dual N-Channel MOSFET Driver. General Description. Features. Applications. Typical Application General Description The is a 28V half-bridge dual MOSFET driver for high-current DC-DC converter and motor driver applications. It drives both high-side and low-side N-channel MOSFET switches controlled

More information

Application Note 0009

Application Note 0009 Recommended External Circuitry for Transphorm GaN FETs Application Note 9 Table of Contents Part I: Introduction... 2 Part II: Solutions to Suppress Oscillation... 2 Part III: The di/dt Limits of GaN Switching

More information

Appendix: Power Loss Calculation

Appendix: Power Loss Calculation Appendix: Power Loss Calculation Current flow paths in a synchronous buck converter during on and off phases are illustrated in Fig. 1. It has to be noticed that following parameters are interrelated:

More information

EUP V/12V Synchronous Buck PWM Controller DESCRIPTION FEATURES APPLICATIONS. Typical Application Circuit. 1

EUP V/12V Synchronous Buck PWM Controller DESCRIPTION FEATURES APPLICATIONS. Typical Application Circuit. 1 5V/12V Synchronous Buck PWM Controller DESCRIPTION The is a high efficiency, fixed 300kHz frequency, voltage mode, synchronous PWM controller. The device drives two low cost N-channel MOSFETs and is designed

More information

Lecture 7 ECEN 4517/5517

Lecture 7 ECEN 4517/5517 Lecture 7 ECEN 4517/5517 Experiments 4-5: inverter system Exp. 4: Step-up dc-dc converter (cascaded boost converters) Analog PWM and feedback controller to regulate HVDC Exp. 5: DC-AC inverter (H-bridge)

More information

Keywords: No-opto flyback, synchronous flyback converter, peak current mode controller

Keywords: No-opto flyback, synchronous flyback converter, peak current mode controller Keywords: No-opto flyback, synchronous flyback converter, peak current mode controller APPLICATION NOTE 6394 HOW TO DESIGN A NO-OPTO FLYBACK CONVERTER WITH SECONDARY-SIDE SYNCHRONOUS RECTIFICATION By:

More information

DC/DC Converters for High Conversion Ratio Applications

DC/DC Converters for High Conversion Ratio Applications DC/DC Converters for High Conversion Ratio Applications A comparative study of alternative non-isolated DC/DC converter topologies for high conversion ratio applications Master s thesis in Electrical Power

More information

A Solution to Simplify 60A Multiphase Designs By John Lambert & Chris Bull, International Rectifier, USA

A Solution to Simplify 60A Multiphase Designs By John Lambert & Chris Bull, International Rectifier, USA A Solution to Simplify 60A Multiphase Designs By John Lambert & Chris Bull, International Rectifier, USA As presented at PCIM 2001 Today s servers and high-end desktop computer CPUs require peak currents

More information

3D Power Inductor: Calculation of Iron Core Losses

3D Power Inductor: Calculation of Iron Core Losses 3D Power Inductor: Calculation of Iron Core Losses L. Havez 1, E. Sarraute 1 1 LAPLACE, Toulouse, France Abstract Introduction: Designing magnetic components requires the well-known of electromagnetic

More information

LM78S40 Switching Voltage Regulator Applications

LM78S40 Switching Voltage Regulator Applications LM78S40 Switching Voltage Regulator Applications Contents Introduction Principle of Operation Architecture Analysis Design Inductor Design Transistor and Diode Selection Capacitor Selection EMI Design

More information

CHAPTER 2 EQUIVALENT CIRCUIT MODELING OF CONDUCTED EMI BASED ON NOISE SOURCES AND IMPEDANCES

CHAPTER 2 EQUIVALENT CIRCUIT MODELING OF CONDUCTED EMI BASED ON NOISE SOURCES AND IMPEDANCES 29 CHAPTER 2 EQUIVALENT CIRCUIT MODELING OF CONDUCTED EMI BASED ON NOISE SOURCES AND IMPEDANCES A simple equivalent circuit modeling approach to describe Conducted EMI coupling system for the SPC is described

More information

Boundary Mode Offline LED Driver Using MP4000. Application Note

Boundary Mode Offline LED Driver Using MP4000. Application Note The Future of Analog IC Technology AN046 Boundary Mode Offline LED Driver Using MP4000 Boundary Mode Offline LED Driver Using MP4000 Application Note Prepared by Zheng Luo March 25, 2011 AN046 Rev. 1.0

More information

Designing High density Power Solutions with GaN Created by: Masoud Beheshti Presented by: Xaver Arbinger

Designing High density Power Solutions with GaN Created by: Masoud Beheshti Presented by: Xaver Arbinger Designing High density Power Solutions with GaN Created by: Masoud Beheshti Presented by: Xaver Arbinger Topics Why GaN? Integration for Higher System Performance Application Examples Taking GaN beyond

More information

AN Analog Power USA Applications Department

AN Analog Power USA Applications Department Using MOSFETs for Synchronous Rectification The use of MOSFETs to replace diodes to reduce the voltage drop and hence increase efficiency in DC DC conversion circuits is a concept that is widely used due

More information

A High Efficient Integrated Planar Transformer for Primary-Parallel Isolated Boost Converters

A High Efficient Integrated Planar Transformer for Primary-Parallel Isolated Boost Converters A High Efficient Integrated Planar Transformer for Primary-Parallel Isolated Boost Converters Gokhan Sen 1, Ziwei Ouyang 1, Ole C. Thomsen 1, Michael A. E. Andersen 1, and Lars Møller 2 1. Department of

More information

FSB50450UD Motion SPM 5 Series

FSB50450UD Motion SPM 5 Series FSB50450UD Motion SPM 5 Series Features UL Certified No. E209204 (UL1557) 500 V R DS(on) = 2.4 Max FRFET MOSFET 3-Phase Inverter with Gate Drivers and Protection Built-In Bootstrap Diodes Simplify PCB

More information

Vishay Siliconix AN724 Designing A High-Frequency, Self-Resonant Reset Forward DC/DC For Telecom Using Si9118/9 PWM/PSM Controller.

Vishay Siliconix AN724 Designing A High-Frequency, Self-Resonant Reset Forward DC/DC For Telecom Using Si9118/9 PWM/PSM Controller. AN724 Designing A High-Frequency, Self-Resonant Reset Forward DC/DC For Telecom Using Si9118/9 PWM/PSM Controller by Thong Huynh FEATURES Fixed Telecom Input Voltage Range: 30 V to 80 V 5-V Output Voltage,

More information

SC A LED DRIVER with INTERNAL SWITCH. Features. Description. Applications. Package Information

SC A LED DRIVER with INTERNAL SWITCH. Features. Description. Applications. Package Information 1.2A LED DRVER with NTERNAL SWTCH Features Simple low parts count Wide input voltage range: 4V to 40V 1.2A output current Single pin on/off Brightness control by using DC voltage Brightness control by

More information

AIC1340 High Performance, Triple-Output, Auto- Tracking Combo Controller

AIC1340 High Performance, Triple-Output, Auto- Tracking Combo Controller High Performance, Triple-Output, Auto- Tracking Combo Controller FEATURES Provide Triple Accurate Regulated Voltages Optimized Voltage-Mode PWM Control Dual N-Channel MOSFET Synchronous Drivers Fast Transient

More information

SiC-JFET in half-bridge configuration parasitic turn-on at

SiC-JFET in half-bridge configuration parasitic turn-on at SiC-JFET in half-bridge configuration parasitic turn-on at current commutation Daniel Heer, Infineon Technologies AG, Germany, Daniel.Heer@Infineon.com Dr. Reinhold Bayerer, Infineon Technologies AG, Germany,

More information

ACT111A. 4.8V to 30V Input, 1.5A LED Driver with Dimming Control GENERAL DESCRIPTION FEATURES APPLICATIONS TYPICAL APPLICATION CIRCUIT

ACT111A. 4.8V to 30V Input, 1.5A LED Driver with Dimming Control GENERAL DESCRIPTION FEATURES APPLICATIONS TYPICAL APPLICATION CIRCUIT 4.8V to 30V Input, 1.5A LED Driver with Dimming Control FEATURES Up to 92% Efficiency Wide 4.8V to 30V Input Voltage Range 100mV Low Feedback Voltage 1.5A High Output Capacity PWM Dimming 10kHz Maximum

More information

ZLED7000 / ZLED7020 Application Note - Buck Converter LED Driver Applications

ZLED7000 / ZLED7020 Application Note - Buck Converter LED Driver Applications ZLED7000 / ZLED7020 Application Note - Buck Converter LED Driver Applications Contents 1 Introduction... 2 2 Buck Converter Operation... 2 3 LED Current Ripple... 4 4 Switching Frequency... 4 5 Dimming

More information

Preliminary. Synchronous Buck PWM DC-DC Controller FP6329/A. Features. Description. Applications. Ordering Information.

Preliminary. Synchronous Buck PWM DC-DC Controller FP6329/A. Features. Description. Applications. Ordering Information. Synchronous Buck PWM DC-DC Controller Description The is designed to drive two N-channel MOSFETs in a synchronous rectified buck topology. It provides the output adjustment, internal soft-start, frequency

More information

A COMPARISON STUDY OF THE COMMUTATION METHODS FOR THE THREE-PHASE PERMANENT MAGNET BRUSHLESS DC MOTOR

A COMPARISON STUDY OF THE COMMUTATION METHODS FOR THE THREE-PHASE PERMANENT MAGNET BRUSHLESS DC MOTOR A COMPARISON STUDY OF THE COMMUTATION METHODS FOR THE THREE-PHASE PERMANENT MAGNET BRUSHLESS DC MOTOR Shiyoung Lee, Ph.D. Pennsylvania State University Berks Campus Room 120 Luerssen Building, Tulpehocken

More information

R. W. Erickson. Department of Electrical, Computer, and Energy Engineering University of Colorado, Boulder

R. W. Erickson. Department of Electrical, Computer, and Energy Engineering University of Colorado, Boulder R. W. Erickson Department of Electrical, Computer, and Energy Engineering University of Colorado, Boulder 13.2.3 Leakage inductances + v 1 (t) i 1 (t) Φ l1 Φ M Φ l2 i 2 (t) + v 2 (t) Φ l1 Φ l2 i 1 (t)

More information

Overview of core loss prediction (and measurement techniques) for non-sinusoidal waveforms

Overview of core loss prediction (and measurement techniques) for non-sinusoidal waveforms Overview of core loss prediction (and measurement techniques) for non-sinusoidal waveforms Charles R. Sullivan Dartmouth Magnetic Components and Power Electronics Research Group chrs@dartmouth.edu http://engineering.dartmouth.edu/inductor

More information

Differential-Mode Emissions

Differential-Mode Emissions Differential-Mode Emissions In Fig. 13-5, the primary purpose of the capacitor C F, however, is to filter the full-wave rectified ac line voltage. The filter capacitor is therefore a large-value, high-voltage

More information

IR3101 Series 1.6A, 500V

IR3101 Series 1.6A, 500V Half-Bridge FredFet and Integrated Driver Features Output power FredFets in half-bridge configuration High side gate drive designed for bootstrap operation Bootstrap diode integrated into package. Lower

More information

Understanding, measuring, and reducing output noise in DC/DC switching regulators

Understanding, measuring, and reducing output noise in DC/DC switching regulators Understanding, measuring, and reducing output noise in DC/DC switching regulators Practical tips for output noise reduction Katelyn Wiggenhorn, Applications Engineer, Buck Switching Regulators Robert Blattner,

More information

HT7938A High Current and Performance White LED Driver

HT7938A High Current and Performance White LED Driver High Current and Performance White LED Driver Feature Efficiency up to 90% at V IN =4.0V, 5S2P, I LED =20mA 1.2MHz fixed switching frequency Low standby current: 0.1mA (typ.) at V EN =0V Matches LED current

More information

AN2170 APPLICATION NOTE MOSFET Device Effects on Phase Node Ringing in VRM Power Converters INTRODUCTION

AN2170 APPLICATION NOTE MOSFET Device Effects on Phase Node Ringing in VRM Power Converters INTRODUCTION AN2170 APPLICATION NOTE MOSFET Device Effects on Phase Node Ringing in VRM Power Converters INTRODUCTION The growth in production volume of industrial equipment (e.g., power DC-DC converters devoted to

More information

1.0MHz,24V/2.0A High Performance, Boost Converter

1.0MHz,24V/2.0A High Performance, Boost Converter 1.0MHz,24V/2.0A High Performance, Boost Converter General Description The LP6320C is a 1MHz PWM boost switching regulator designed for constant-voltage boost applications. The can drive a string of up

More information

FSB50250AS Motion SPM 5 Series

FSB50250AS Motion SPM 5 Series FSB50250AS Motion SPM 5 Series Features UL Certified No. E209204 (UL1557) 500 V R DS(on) = 3.8 Max FRFET MOSFET 3-Phase Inverter with Gate Drivers and Protection Built-In Bootstrap Diodes Simplify PCB

More information

235 W Maximum Power Dissipation (whole module) 470 T J Junction Operating Temperature -40 to 150. Torque strength

235 W Maximum Power Dissipation (whole module) 470 T J Junction Operating Temperature -40 to 150. Torque strength Discontinued PRODUCT SUMMARY (TYPICAL) V DS (V) 600 R DS(on) (m ) 30 GaN Power Hybrid HEMT Half-Bridge Module Features High frequency operation Free-wheeling diode not required Applications Compact DC-DC

More information

N-Channel Synchronous MOSFETs With Break-Before-Make

N-Channel Synchronous MOSFETs With Break-Before-Make New Product Si4738CY N-Channel Synchronous MOSFETs With Break-Before-Make FEATURES 0- to 20-V Operation Under-Voltage Lockout Shoot Through Resistant Fast Switching Times SO-16 Package Driver Impedance

More information

RT9603. Synchronous-Rectified Buck MOSFET Drivers. General Description. Features. Applications. Ordering Information. Pin Configurations

RT9603. Synchronous-Rectified Buck MOSFET Drivers. General Description. Features. Applications. Ordering Information. Pin Configurations Synchronous-Rectified Buck MOSFET Drivers General Description The RT9603 is a high frequency, dual MOSFET drivers specifically designed to drive two power N-MOSFETs in a synchronous-rectified buck converter

More information

FSB50760SF, FSB50760SFT Motion SPM 5 SuperFET Series

FSB50760SF, FSB50760SFT Motion SPM 5 SuperFET Series FSB50760SF, FSB50760SFT Motion SPM 5 SuperFET Series Features UL Certified No. E209204 (UL1557) 600 V R DS(on) = 530 m Max SuperFET MOSFET 3- Phase with Gate Drivers and Protection Built-in Bootstrap Diodes

More information

The Quest for High Power Density

The Quest for High Power Density The Quest for High Power Density Welcome to the GaN Era Power Conversion Technology Drivers Key design objectives across all applications: High power density High efficiency High reliability Low cost 2

More information

High Efficiency 8A Synchronous Boost Convertor

High Efficiency 8A Synchronous Boost Convertor High Efficiency 8A Synchronous Boost Convertor General Description The is a synchronous current mode boost DC-DC converter. Its PWM circuitry with built-in 8A current power MOSFET makes this converter

More information

Features MIC2194BM VIN EN/ UVLO CS OUTP VDD FB. 2k COMP GND. Adjustable Output Buck Converter MIC2194BM UVLO

Features MIC2194BM VIN EN/ UVLO CS OUTP VDD FB. 2k COMP GND. Adjustable Output Buck Converter MIC2194BM UVLO MIC2194 400kHz SO-8 Buck Control IC General Description s MIC2194 is a high efficiency PWM buck control IC housed in the SO-8 package. Its 2.9V to 14V input voltage range allows it to efficiently step

More information

2A, 23V, 380KHz Step-Down Converter

2A, 23V, 380KHz Step-Down Converter 2A, 23V, 380KHz Step-Down Converter General Description The is a buck regulator with a built-in internal power MOSFET. It achieves 2A continuous output current over a wide input supply range with excellent

More information

Increasing Efficiency in LED Streetlight Power Supplies

Increasing Efficiency in LED Streetlight Power Supplies Increasing Efficiency in LED Streetlight Power Supplies New LLC converter simplifies design of high efficiency PSUs Solid state exterior lighting requires a regulated AC to DC power supply to drive LED

More information

WD3122EC. Descriptions. Features. Applications. Order information. High Efficiency, 28 LEDS White LED Driver. Product specification

WD3122EC. Descriptions. Features. Applications. Order information. High Efficiency, 28 LEDS White LED Driver. Product specification High Efficiency, 28 LEDS White LED Driver Descriptions The is a constant current, high efficiency LED driver. Internal MOSFET can drive up to 10 white LEDs in series and 3S9P LEDs with minimum 1.1A current

More information

Positive to Negative Buck-Boost Converter Using LM267X SIMPLE SWITCHER Regulators

Positive to Negative Buck-Boost Converter Using LM267X SIMPLE SWITCHER Regulators Positive to Negative Buck-Boost Converter Using LM267X SIMPLE SWITCHER Regulators Abstract The 3rd generation Simple Switcher LM267X series of regulators are monolithic integrated circuits with an internal

More information

APPLICATION NOTE 735 Layout Considerations for Non-Isolated DC-DC Converters

APPLICATION NOTE 735 Layout Considerations for Non-Isolated DC-DC Converters Maxim > App Notes > AUTOMOTIVE GENERAL ENGINEERING TOPICS POWER-SUPPLY CIRCUITS PROTOTYPING AND PC BOARD LAYOUT Keywords: printed circuit board, PCB layout, parasitic inductance, parasitic capacitance,

More information

RT8477. High Voltage High Current LED Driver. Features. General Description. Applications. Ordering Information RT8477. Pin Configurations (TOP VIEW)

RT8477. High Voltage High Current LED Driver. Features. General Description. Applications. Ordering Information RT8477. Pin Configurations (TOP VIEW) High Voltage High Current LED Driver General Description The is a current mode PWM controller designed to drive an external MOSFET for high current LED applications with wide input voltage (4.5V to 50V)

More information

DESIGN TIP DT Managing Transients in Control IC Driven Power Stages 2. PARASITIC ELEMENTS OF THE BRIDGE CIRCUIT 1. CONTROL IC PRODUCT RANGE

DESIGN TIP DT Managing Transients in Control IC Driven Power Stages 2. PARASITIC ELEMENTS OF THE BRIDGE CIRCUIT 1. CONTROL IC PRODUCT RANGE DESIGN TIP DT 97-3 International Rectifier 233 Kansas Street, El Segundo, CA 90245 USA Managing Transients in Control IC Driven Power Stages Topics covered: By Chris Chey and John Parry Control IC Product

More information

DrGaN PLUS Development Board EPC9201/3 Quick Start Guide

DrGaN PLUS Development Board EPC9201/3 Quick Start Guide DrGaN PLUS Development Board EPC9201/3 Quick Start Guide Optimized Half-Bridge Circuit for egan FETs EPC9203 Top side EPC9201 Top side 11 mm X 12 mm Mounting side DESCRIPTION This development board, measuring

More information

Performance Enhancement of Sensorless Control of Z-Source Inverter Fed BLDC Motor

Performance Enhancement of Sensorless Control of Z-Source Inverter Fed BLDC Motor IJSTE - International Journal of Science Technology & Engineering Volume 1 Issue 11 May 2015 ISSN (online): 2349-784X Performance Enhancement of Sensorless Control of Z-Source Inverter Fed BLDC Motor K.

More information

RT8474A. High Voltage Multiple-Topology LED Driver with Open Detection. General Description. Features. Ordering Information.

RT8474A. High Voltage Multiple-Topology LED Driver with Open Detection. General Description. Features. Ordering Information. RT8474A High oltage Multiple-Topology LED Driver with Open Detection General Description The RT8474A is a current-mode LED driver supporting wide input voltage range from 4.5 to 50 in multiple topologies.

More information

GS61004B 100V enhancement mode GaN transistor Preliminary Datasheet

GS61004B 100V enhancement mode GaN transistor Preliminary Datasheet Features 100V enhancement mode power switch Bottom-side cooled configuration R DS(on) = 15 mω I DS(max) = 45 A Ultra-low FOM Island Technology die Low inductance GaNPX package Easy gate drive requirements

More information

IRF7821PbF. HEXFET Power MOSFET

IRF7821PbF. HEXFET Power MOSFET Applications l High Frequency Point-of-Load Synchronous Buck Converter for Applications in Networking & Computing Systems. l Lead-Free Benefits l Very Low R DS(on) at 4.5V V GS l Low Gate Charge l Fully

More information

MP2497-A 3A, 50V, 100kHz Step-Down Converter with Programmable Output OVP Threshold

MP2497-A 3A, 50V, 100kHz Step-Down Converter with Programmable Output OVP Threshold The Future of Analog IC Technology MP2497-A 3A, 50V, 100kHz Step-Down Converter with Programmable Output OVP Threshold DESCRIPTION The MP2497-A is a monolithic step-down switch mode converter with a programmable

More information

E Typical Application and Component Selection AN 0179 Jan 25, 2017

E Typical Application and Component Selection AN 0179 Jan 25, 2017 1 Typical Application and Component Selection 1.1 Step-down Converter and Control System Understanding buck converter and control scheme is essential for proper dimensioning of external components. E522.41

More information

CHAPTER 1 INTRODUCTION

CHAPTER 1 INTRODUCTION 1 CHAPTER 1 INTRODUCTION 1.1 GENERAL Induction motor drives with squirrel cage type machines have been the workhorse in industry for variable-speed applications in wide power range that covers from fractional

More information

MP V, 700kHz Synchronous Step-Up White LED Driver

MP V, 700kHz Synchronous Step-Up White LED Driver The Future of Analog IC Technology MP3306 30V, 700kHz Synchronous Step-Up White LED Driver DESCRIPTION The MP3306 is a step-up converter designed for driving white LEDs from 3V to 12V power supply. The

More information

TFT-LCD DC/DC Converter with Integrated Backlight LED Driver

TFT-LCD DC/DC Converter with Integrated Backlight LED Driver TFT-LCD DC/DC Converter with Integrated Backlight LED Driver Description The is a step-up current mode PWM DC/DC converter (Ch-1) built in an internal 1.6A, 0.25Ω power N-channel MOSFET and integrated

More information

MIC4414/4415. General Description. Features. Applications. Typical Application. 1.5A, 4.5V to 18V, Low-Side MOSFET Driver

MIC4414/4415. General Description. Features. Applications. Typical Application. 1.5A, 4.5V to 18V, Low-Side MOSFET Driver MIC4414/4415 1.5A, 4.5V to 18V, Low-Side MOSFET Driver General Description The MIC4414 and MIC4415 are low-side MOSFET drivers designed to switch an N-channel enhancement type MOSFET in low-side switch

More information

Symbol Parameter Typical

Symbol Parameter Typical PRODUCT SUMMARY (TYPICAL) V DS (V) 650 R DS(on) (m ) 110 Q rr (nc) 54 Features Low Q rr Free-wheeling diode not required Low-side Quiet Tab for reduced EMI RoHS compliant High frequency operation Applications

More information

MP1495 High Efficiency 3A, 16V, 500kHz Synchronous Step Down Converter

MP1495 High Efficiency 3A, 16V, 500kHz Synchronous Step Down Converter The Future of Analog IC Technology DESCRIPTION The MP1495 is a high-frequency, synchronous, rectified, step-down, switch-mode converter with built-in power MOSFETs. It offers a very compact solution to

More information

CEP8101A Rev 1.0, Apr, 2014

CEP8101A Rev 1.0, Apr, 2014 Wide-Input Sensorless CC/CV Step-Down DC/DC Converter FEATURES 42V Input Voltage Surge 40V Steady State Operation Up to 2.1A output current Output Voltage 2.5V to 10V Resistor Programmable Current Limit

More information

GS66516T Top-side cooled 650 V E-mode GaN transistor Preliminary Datasheet

GS66516T Top-side cooled 650 V E-mode GaN transistor Preliminary Datasheet Features 650 V enhancement mode power switch Top-side cooled configuration R DS(on) = 25 mω I DS(max) = 60 A Ultra-low FOM Island Technology die Low inductance GaNPX package Easy gate drive requirements

More information

FAN2013 2A Low-Voltage, Current-Mode Synchronous PWM Buck Regulator

FAN2013 2A Low-Voltage, Current-Mode Synchronous PWM Buck Regulator FAN2013 2A Low-Voltage, Current-Mode Synchronous PWM Buck Regulator Features 95% Efficiency, Synchronous Operation Adjustable Output Voltage from 0.8V to V IN-1 4.5V to 5.5V Input Voltage Range Up to 2A

More information

SR A, 30V, 420KHz Step-Down Converter DESCRIPTION FEATURES APPLICATIONS TYPICAL APPLICATION

SR A, 30V, 420KHz Step-Down Converter DESCRIPTION FEATURES APPLICATIONS TYPICAL APPLICATION SR2026 5A, 30V, 420KHz Step-Down Converter DESCRIPTION The SR2026 is a monolithic step-down switch mode converter with a built in internal power MOSFET. It achieves 5A continuous output current over a

More information

DIO6305 High-Efficiency 1.2MHz, 1.1A Synchronous Step-Up Converter

DIO6305 High-Efficiency 1.2MHz, 1.1A Synchronous Step-Up Converter High-Efficiency 1.2MHz, 1.1A Synchronous Step-Up Converter Rev 1.2 Features High-Efficiency Synchronous-Mode 2.7-5.25V input voltage range Device Quiescent Current: 30µA (TYP) Less than 1µA Shutdown Current

More information

Datasheet. 5A 240KHZ 36V PWM Buck DC/DC Converter. Features

Datasheet. 5A 240KHZ 36V PWM Buck DC/DC Converter. Features General Description The is a 240 KHz fixed frequency monolithic step down switch mode regulator with a built in internal Power MOSFET. It achieves 5A continuous output current over a wide input supply

More information

HIGH SPEED, 100V, SELF OSCILLATING 50% DUTY CYCLE, HALF-BRIDGE DRIVER

HIGH SPEED, 100V, SELF OSCILLATING 50% DUTY CYCLE, HALF-BRIDGE DRIVER Data Sheet No. 60206 HIGH SPEED, 100V, SELF OSCILLATING 50% DUTY CYCLE, HALF-BRIDGE DRIVER Features Simple primary side control solution to enable half-bridge DC-Bus Converters for 48V distributed systems

More information

MP2313 High Efficiency 1A, 24V, 2MHz Synchronous Step Down Converter

MP2313 High Efficiency 1A, 24V, 2MHz Synchronous Step Down Converter The Future of Analog IC Technology MP2313 High Efficiency 1A, 24V, 2MHz Synchronous Step Down Converter DESCRIPTION The MP2313 is a high frequency synchronous rectified step-down switch mode converter

More information

CEP8113A Rev 2.0, Apr, 2014

CEP8113A Rev 2.0, Apr, 2014 Wide-Input Sensorless CC/CV Step-Down DC/DC Converter FEATURES 42V Input Voltage Surge 40V Steady State Operation Up to 3.5A output current Output Voltage 2.5V to 10V Resistor Programmable Current Limit

More information

FSB50450S Motion SPM 5 Series

FSB50450S Motion SPM 5 Series FSB50450S Motion SPM 5 Series Features UL Certified No. E209204 (UL1557) 500 V R DS(on) = 2.4 Max FRFET MOSFET 3-Phase Inverter with Gate Drivers Separate Open-Source Pins from Low-Side MOSFETs for Three-Phase

More information

Power Management for Computer Systems. Prof. C Wang

Power Management for Computer Systems. Prof. C Wang ECE 5990 Power Management for Computer Systems Prof. C Wang Fall 2010 Course Outline Fundamental of Power Electronics cs for Computer Systems, Handheld Devices, Laptops, etc More emphasis in DC DC converter

More information

High Performance ZVS Buck Regulator Removes Barriers To Increased Power Throughput In Wide Input Range Point-Of-Load Applications

High Performance ZVS Buck Regulator Removes Barriers To Increased Power Throughput In Wide Input Range Point-Of-Load Applications WHITE PAPER High Performance ZVS Buck Regulator Removes Barriers To Increased Power Throughput In Wide Input Range Point-Of-Load Applications Written by: C. R. Swartz Principal Engineer, Picor Semiconductor

More information

GS61008T Top-side cooled 100 V E-mode GaN transistor Preliminary Datasheet

GS61008T Top-side cooled 100 V E-mode GaN transistor Preliminary Datasheet Features 100 V enhancement mode power switch Top-side cooled configuration R DS(on) = 7 mω I DS(max) = 90 A Ultra-low FOM Island Technology die Low inductance GaNPX package Easy gate drive requirements

More information

AN726. Vishay Siliconix AN726 Design High Frequency, Higher Power Converters With Si9166

AN726. Vishay Siliconix AN726 Design High Frequency, Higher Power Converters With Si9166 AN726 Design High Frequency, Higher Power Converters With Si9166 by Kin Shum INTRODUCTION The Si9166 is a controller IC designed for dc-to-dc conversion applications with 2.7- to 6- input voltage. Like

More information

V DSS R DS(on) max Qg. 560 P C = 25 C Maximum Power Dissipation g 140 P C = 100 C Maximum Power Dissipation g Linear Derating Factor

V DSS R DS(on) max Qg. 560 P C = 25 C Maximum Power Dissipation g 140 P C = 100 C Maximum Power Dissipation g Linear Derating Factor Applications l High Frequency Synchronous Buck Converters for Computer Processor Power l High Frequency Isolated DC-DC Converters with Synchronous Rectification for Telecom and Industrial Use Benefits

More information

ADT7350. General Description. Applications. Features. Typical Application Circuit. Aug / Rev. 0.

ADT7350. General Description. Applications. Features. Typical Application Circuit.  Aug / Rev. 0. General Description The ADT7350 is a step-down converter with integrated switching MOSFET. It operates wide input supply voltage range from 4.5V to 24V with 1.2A peak output current. It includes current

More information

AT V,3A Synchronous Buck Converter

AT V,3A Synchronous Buck Converter FEATURES DESCRIPTION Wide 8V to 40V Operating Input Range Integrated 140mΩ Power MOSFET Switches Output Adjustable from 1V to 25V Up to 93% Efficiency Internal Soft-Start Stable with Low ESR Ceramic Output

More information

Getting the Most From Your Portable DC/DC Converter: How To Maximize Output Current For Buck And Boost Circuits

Getting the Most From Your Portable DC/DC Converter: How To Maximize Output Current For Buck And Boost Circuits Getting the Most From Your Portable DC/DC Converter: How To Maximize Output Current For Buck And Boost Circuits Upal Sengupta, Texas nstruments ABSTRACT Portable product design requires that power supply

More information

DOWNLOAD PDF POWER ELECTRONICS DEVICES DRIVERS AND APPLICATIONS

DOWNLOAD PDF POWER ELECTRONICS DEVICES DRIVERS AND APPLICATIONS Chapter 1 : Power Electronics Devices, Drivers, Applications, and Passive theinnatdunvilla.com - Google D Download Power Electronics: Devices, Drivers and Applications By B.W. Williams - Provides a wide

More information

ANP030. Contents. Application Note AP2014/A Synchronous PWM Controller. 1. AP2014/A Specification. 2. Hardware. 3. Design Procedure. 4.

ANP030. Contents. Application Note AP2014/A Synchronous PWM Controller. 1. AP2014/A Specification. 2. Hardware. 3. Design Procedure. 4. Contents 1. AP2014/A Specification 1.1 Features 1.2 General Description 1.3 Pin Assignments 1.4 Pin Descriptions 1.5 Block Diagram 1.6 Absolute Maximum Ratings 2. Hardware 2.1 Introduction 2.2 Description

More information

EUP A,30V,1.2MHz Step-Down Converter DESCRIPTION FEATURES APPLICATIONS. Typical Application Circuit

EUP A,30V,1.2MHz Step-Down Converter DESCRIPTION FEATURES APPLICATIONS. Typical Application Circuit 1.2A,30V,1.2MHz Step-Down Converter DESCRIPTION The is current mode, step-down switching regulator capable of driving 1.2A continuous load with excellent line and load regulation. The can operate with

More information