Super-high Power Solid-State VC-PWM
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1 x o Super-high Power Solid-State C-PWM for AC and DC power applications x=-.ms,o=.ms,xo=.ms ch A: Frequency(Hz). Input tringle-waveform signal (blue) controls the width of output pulse (red). Oct : -. ms Electronic Design & Research Inc Under management s Holding LLC Data Sheet, EDR Inc. Page // Made in USA
2 Electronic Design & Research, Inc. Intermodal Drive, Louisville KY tell: --- Fax: During past ten years, Electronic Design & Research Inc. has developed and manufactured a new class of Solid-State devices, such as varieties of Solid State Relays, Breakers, ideo Switches, ½ Bridge Drivers, H-Bridge Drivers, Push-Pull Drivers, Soft-Landing solenoid drivers, and many other devices. We make the most powerful, the fastest and some of them controlled by the smallest amount of power. Many devices covered by one or two PATENTS already issued to us and five more are pending. Please ask us for more information. Here is one more family of high-power devices as a oltage Mode Pulse Width Modulator (C-PWM) module. It was designed for high-power DC/DC and DC/AC converters, and high-power proportional drivers. The internal oscillator allows setting at any available frequency range and with an external voltage or a single potentiometer to set required duty cycle. The C-PWM module can be delivered with the sync input to allow synchronization to an external frequency source. The MG- is a middle speed C-PWM (Hz to KHz) platform designed to accommodate up to high-power MOSFETs. It is transistors for DC or transistors for AC applications with driving capacity of more than, amperes. Once needs for a higher speed will be established we will introduce a MF- family of switches for high-speed, high-power switching applications, Hz-. MHz +/-DC(AC) & A module (p/n EDR) Simplified block-diagram of the oltage Controllable Pulse-Width Module Application Information Pulse-Width control Applications Simplified block-diagram of the high-power relay/switch A short list of super-high power C-PWM modules Ordering Instruction for EDR s Solid-State Devices We ve brought in an average of four new devices to the market per month. Above is just an example of switches/drivers that we keep in our stock in small quantities and ready to ship them at once. For your unique application that required a different voltage, current or speed, Ordering Instructions (please see page #) could be rather useful. Do not hesitate to send us an to info@vsholding.com for any additional information, delivery schedule and prices. Thank you, ladimir A. Shvartsman, Ph.D. President & CEO _Shvartsman@vsholding.com Copyright : The contents of this manual are the copyright of the publisher and may not be reproduced (even extracts) unless permission granted. Every care has been taken to ensure the accuracy of the information contained in this manual, but no liability can be accepted for any errors or omission. The right to make design modifications is reserved. Data Sheet, EDR Inc. Page // Made in USA
3 Electronic Design & Research Technology for people's ideas Input Specifications Supply oltage, cc DC Supply Current, Icc (max) ma Modulating/chopping frequency, adjustable Hz-Hz External voltage for PWM control to. Minimum Duty Cycle, input voltage. % Precision rf output for PWM control DC PWM control input, Bias Current (max) na Output Specifications: Operating DC voltage range +/- DC (AC) Continuous current, Id A Maximum continues current, Imp, o C A Maximum surge current, (Ims) -.ms A Maximum pulsing current, Impc, duty / A/mS Maximum on-state resistance. Ohm Rising time (with all MOSFETs installed) ns Falling time (determined by a load) Minimum frequency Hz Maximum frequency,hz Duty cycle.% - % General Specifications: Ambient operating temperature range C to + C Ambient storage temperature range - C to C P/N EDR/I, operating range - C to + C P/N EDR/M, operating range - C to + C Dielectric strength input-to-output,rms (min) +/-DC(AC) & A Switch with PWM control Features: MGA/- (p/n EDR) Designed to deliver kw of power in microseconds oltage Mode PWM, high-power module All required control circuitries for PWM control are built-in A continuously without a heat sink up to A ( o C)/A ( o C) with a heat sink Durable high surge current, to A pulse and A surge Only. Ohms on-state resistance A single DC power and only ma is required for operation a." " Mechanical Specifications: Weight (oz) lb Encapsulation Epoxies Etc. -RFR / -CFR Dimensions H x L x W Power terminals Tined Plated Copper Bar,. x. Terminals. (. mm) diameter." EDR Low High Frequency control "fine" Hz-Hz MGA/- Hz-Hz Frequency.. +DC. Test Out. PWM Control.. +DC/ref "." Transient Protection: All loads are inductive, even ones that are not so obvious or labeled. An inductive load produces a harmful transient voltage, which is much higher than the applied voltage. It happened during turn-off cycle. A SSR built with a MOSFET output acts as an ideal switch and can produce a seemingly non-inductive load, which can cause damage if not suppressed. A transient voltage suppressor, which is bi-directional for AC applied voltage and unidirectional for DC applied voltage, should be used to clamp excessive spikes. Electronic Design & Research Inc. ** Intermodal Dr. ** Louisville ** KY Tel: --; Fax: --; Sales: --; vsholding@vsholding.com Data Sheet, EDR Inc. Page // Made in USA
4 Simplified block-diagram of the oltage-controllable Pulse-Width Module /Optional Pulse Curretn Limiting Minimum Duty Cycle/Opt -in/optional +ref out Control Signal out/test in/+dc Frequency Control J Frequency control & SawTooth Generator +ef Hz-Hz Hz-Hz +cc SW + - CC K K CC U CC J +in CC -in COM CC ENB ENB OUT IN IN OUT CC J a EDR configured as a oltage Mode Pulse Width (PWM) Switch DESCRIPTION The EDR (MGA/-) is a voltage-mode pulse width (C-PWM) switch belonging to the family of a super-high power SPST devices and it is designed to control a high-power isolated DC-DC converters, DC motors, step-down power converters and any other high-power loads. The C-PWM switches are maintaining the ability to operate from Hz to KHz and with PWM control from.% to % duty cycle. A frequency range set by the manufacture to cover any requested frequency range with-in. PIN DESCRIPTIONS -- Circuit ground -- in/+dc The C-PWM requires DC for a proper operation. -- Control signal out/test An output signal (PWM) is a low power signal. It can be used to monitor a proper operation of the internal circuitry via an oscilloscope, synchronization and other monitoring applications. -- Control voltage input for controlling an output pulsewidth. The nominal control range is. to.. -- input. This pin has an internal K pull-up resistor. A logic low input inhibits the PWM output, the internal reference voltage (+ref) and soft start-up capacitor to be discharges (If the option was ordered). -- +ref out. reference output. A precision/low power (.ma) voltage may be use for controlling PWM. -- (optional) Oscillator synchronization input. Rising edge triggered CMOS/TTL compatible input with a. threshold. The minimum pulse width of the signal is ns. should be grounded if not used (if it was ordered). -- Minimum Duty Cycle (opt) Input for programming a minimum duty cycle where pulse skipping begins. This input can be grounded to disable minimum duty cycle features and pulse skipping. -- Pulse Current Limiting (opt) Input can be used for pulse-by-pulse current limiting. The threshold is. nominal. -- (opt) Soft start capacitor input., a, and Output terminals, the a is an optional. Frequency control -- Mounted on the module a toggle switch (SW) to select a frequency range and the potentiometer for fine frequency selection. A wide selection of output voltages and currents are available. Please let us know and for sure, we will meet your requirements. Please request information about our MG size devices. There we built for a lesser current applications and as such cost less. Data Sheet, EDR Inc. Page // Made in USA
5 APPLICATION INFORMATION The EDR belongs to the family of a C-PWM integrated module with an adjustable oscillator and an external setting of the duty cycle allows the use flexibility in selecting frequency and duty for various industrial and military applications. The module provides the most diversity, some of our customer after setting the duty cycle will vary frequency by delivering a short and powerful pulse at a varies frequency, and others changing a duty cycle at a fix frequency thus controlling amount of the total power to a load. Its rugged design is optimized for driving electromechanical devices such as valves, solenoids, relays, and actuators. It is also ideal for driving thermal devices such as heaters, coolers, and high-power lasers and lamps. The EDR is well suited for a high-power DC/AC and DC/DC power converging converter, which is often the preferred solution because of its simplicity, size, low cost, and low part count. Electronic Design & Research s newest high-power C-PWM nodule is optimized for flyback, boost, or forward power converter applications. Having integrated a complete voltage-mode PWM controller with a high voltage and high-power output MOSFETs, a highly efficient, low-cost regulator can be easily designed to operate from an unregulated (wide input range) DC voltage source. Having the same control circuitry, the C-PWM module offered has been offered in a wide range of output voltages, of up to and a few thousand amperes. It can deliver a pulse with rising slope of fraction of a microsecond. PULSE WIDTH CONTROL The pulse-width modulation uses a square wave whose pulse width is modulated resulting of the average value of the waveform, or the average power on a load. The pulse-width modulated by a voltage (control signal) that applies on the. The C-PWM can be used to control the total amount of power delivered to a load without losses normally incurred when a power source is limited by resistive means. This is because the average power delivered is proportional to the modulation duty cycle. In such applications when there is no needs for a precise amount of power or the action a control signal can be derived from the precision reference voltage (pin ). A simple divider consists of a couple of resistors and potentiometer, as it shown on the right drawings, below will precisely controlled output an average (pulse-width) power. ariable oltage Source from to. U Sof t Start REF +DC OUT(-/~) K K U +DC REF OUT(-/~) EDR K EDR However, most applications, such as a power converters and motor drivers required capability of delivering power to insure the output value or action (torque) is stable and constant regardless of changing a load (an average power consumption). The EDR was designed for using the resulting of an error amplifier, which is combination of the setting voltage and the output resulting voltage. Thus delivery just needed amount of output (average) power maintaining precisely the output voltage or the DC Motor s spinning speed. Data Sheet, EDR Inc. Page // Made in USA
6 APPLICATIONS The EDR allows designing various DC/DC converters with minimum external parts. CC T D +out LM IN OUT DIODE C LOAD K U +DC REF OUT(-/~) R U CTHD ANODE REF R R EDR R R Flyback DC/DC Converter Circuit +DC +in R R U REF OUT(-/~) +DC EDR L D C +out R R CTHD REF ANODE U R LOAD Q Isolated, Step-down, oltage converter +in IN OUT LM R R U REF +DC OUT(-/~) L D LOAD +out C R C EDR SW ON/OFF Overload Sensing R Step-Down Converter Data Sheet, EDR Inc. Page // Made in USA
7 x o x o x o x=-.ms,o=-.ms,xo=.ms ms ch B: Frequency(Hz). ch B: Duty cycle high(%). oltage applied to the controls the duration of output pulse when the frequency remained the same. Oct : oltage applied to the controls the duration of output pulse when the frequency remained the same. x=µs,o=-.µs,xo=-µs ch A: Frequency(Hz) Not enough data A train of pulses with a constant duration, when. applied onto the PWM control input Oct : - ms A train of pulses with a constant duration, when. applied onto the PWM control input x=-ns,o=ns,xo=ns ch A: Frequency(Hz) Not enough data It is a fast switch. With all transistors installed, the duration of the turn-on slope is only ns. Oct : µs It is a fast switch. With all transistor installed, the duration of the turn-on slope is only ns Data Sheet, EDR Inc. Page // Made in USA
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