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1 qwertyuiopasdfghjklzxcvbnmq wertyuiopasdfghjklzxcvbnmqw ertyuiopasdfghjklzxcvbnmqwer FURKAN BAŞKURT tyuiopasdfghjklzxcvbnmqwerty uiopasdfghjklzxcvbnmqwertyui EDUCATION & INDUSTRIAL EXPERIENCES opasdfghjklzxcvbnmqwertyuiop +90 (535) asdfghjklzxcvbnmqwertyuiopas This document contains chronological list and details about my B.Sc./M.Sc. education dfghjklzxcvbnmqwertyuiopasdf other information related with my industrial experience in electrical engineering. ghjklzxcvbnmqwertyuiopasdfgh and detailed explanations, technical information, download links for some documents, measurement results (tables, oscilloscope screenshots, pictures, video links, etc ) and In case of a question about this document you may contact me via the contact information given above. jklzxcvbnmqwertyuiopasdfghjkl zxcvbnmqwertyuiopasdfghjklzx cvbnmqwertyuiopasdfghjklzxcv bnmqwertyuiopasdfghjklzxcvbn mqwertyuiopasdfghjklzxcvbnm qwertyuiopasdfghjklzxcvbnmq wertyuiopasdfghjklzxcvbnmqw ertyuiopasdfghjklzxcvbnmrtyui opasdfghjklzxcvbnmqwertyuiop asdfghjklzxcvbnmqwertyuiopas dfghjklzxcvbnmqwertyuiopasdf

2 B.Sc. Education Details I have graduated from Istanbul Technical University / Department of Electrical Engineering in After the fifth semester, I decided to focus on power electronics area and got connected with Asst. Prof. Deniz Yildirim who is teaching courses related with power electronics, dc-dc converters and photovoltaic systems. I succeeded basic courses about power electronics, electrical machines and power systems but my elective courses are selected mainly on power electronics and electrical machines areas. Succeeded courses related with power electronics and electrical machines are listed below; Power Electronic Circuits Power Electronics Laboratory Industrial Applications of Power Electronics Design of Power Electronic Circuits Electrical Machines I-II Special Electrical Machines Small Electrical Machines & Their Applications Industrial Applications of Electrical Machines My B.Sc. graduation project was about Sinusoidal PWM Inverter Design with Transformer. In this project, analog control circuit of SPWM, gate and power circuits are constructed. M.Sc. Education Details Between 2008 and 2012, I gained my M.Sc. degree from Istanbul Technical University/Department of Electrical Engineering. My theoretical and practical background increased rapidly on M.Sc. In my first 6 months, I completely finished four basic textbooks Power Electronics: Circuits, Devices, and Applications (M. Rashid), Electric Circuits (James W. Nilsson), Fundamentals of Power Electronics (Robert W. Erickson) and Electronic Devices and Circuit Theory (Robert L. Boylestad) with my own effort. This increased my theoretical background. I succeeded 7 courses related with power electronics and electrical machines. Course names and details are written below. You can also download course forms and course related project reports via the given links. ELK503E : Power Electronic Systems (Grade: AA) Course description: Operating principles of power electronic circuits, improving the features for the supply and load sides: improving the power factor of rectifiers, special modulation technologies for inverters. Power electronic circuit models and derivation of transfer functions. Modern control methods and hardware for power electronic systems. Design and computer simulation of static and dynamic control systems. ( Related Project: Feedback Controlled Flyback Convertor (Group Work / 2 documents / 27 pages) Feasibility Report: Final Report: ELK506E : Analysis and Design of Switched Mode Power Supplies (Grade: AA) Course description: Steady-state analysis of switched-mode power supplies (SMPS), steady-state equivalent circuit modeling, losses, and efficiency. Discontinuous conduction mode, converter topologies. AC equivalent circuit modeling of converters, state-space averaging, review of Bode plots, analysis of converter transfer functions, closed-loop transfer functions and stability, regulator design, measurement 1

3 of loop gains. Magnetics theory, loss mechanism in magnetic devices, filter inductor, multiple winding magnetic components, transformer and AC inductor design. Related Project: DCM Buck-Boost Converter Design (Individual Work) Presentation: ELK519E : Resonant Power Converters (Grade: BB) Course description: Introduction to resonant conversion principles, sinusoidal approximation for resonant converter analysis, averaging, state-plane analysis, series and parallel resonant converters, continuous and discontinuous conduction modes, LCC and LLC resonant converter, soft switching, zerocurrent switching (ZCS) and zero-voltage switching (ZVS) resonant converters, quasi-resonant square wave converters, half-wave and full-wave ZCS quasi-resonant-switch, small-signal AC modeling, analysis of multi-resonant converters. ( Related Project: ZVS Half Wave Quasi Resonant Buck Converter Design (Individual Work) Final Report: Presentation: Video: ELK606E : Brushless Servomotors & Their Applications (Grade: BA) Course description: Definition and classification, electromechanical energy conversion, structure and materials of brushless servomotors, permanent magnet materials and circuits, stepping motors, squarewave permanent magnet brushless motors, sine-wave permanent magnet brushless motors, sensors and digital signal processing for servomotors, power electronic supply circuits, brushless servomotor control, brushless servomotor applications. ( Related Project: Design of an Electric Bike (Individual Work) Final Report: KOM506E : Control of Induction Machines (Grade: BA) Course description: Dynamic mathematical model of induction machine for control, state variables and transfer functions, control features and mathematical models of static power converters used as drivers. Scalar control methods, field orientation, direct and indirect vector control, modern control applications in induction machines. ( Related Project: DQ Modeling of an Induction Motor (Individual Work) Simulation Model: ELK504E : Dynamics of Electrical Machines (Grade: BB) Course description: Principles of electromechanical energy conversion, conservation of energy, flux linkage, field energy, co-energy, induced torque and force expressions, state equations of electromechanical systems, mathematical modeling of electrical machines, reference frame theory, transformation between reference frames, transformed equivalent circuit model of alternating-current machines, linearization of machine equations, dynamic analysis of transformers, direct-current, synchronous and induction machines, computer analysis of single and multi-machine problems. ( Related Project: αβ Modeling of an Induction Motor (Individual Work) Report: 2

4 ELK507 : Harmonics in Electrical Machines (Turkish) (Grade: AA) Course description: Methods of generating non-sinusoidal voltage waveforms, the type of nonsinusoidal voltage waveforms, Fourier Series, the MMF distribution in the air gap. The equivalent circuits of primary space harmonics. The secondary space harmonics. The calculation of air gap flux for sinusoidal and non-sinusoidal voltage waveform applications. Time harmonics. The deep bar effect. The equivalent circuit for time harmonics. The combined equivalent circuit space and time harmonics. The calculation of copper, iron and additional losses. Computer programs for calculation of machine performance. ( Ph.D. Education Details I have started my Ph.D. degree at ITU because it is required for being a research/teaching assistant here. I have succeeded 2 courses related with power electronics and electrical machines. Course names and details are written below. You can also download course forms and course related project reports via the given links. ELK605 : Power Electronic Systems (Grade: BA) Course description: Advances in power electronics, control theory, and microprocessors initiated new research on electrical machines. As a result, electrical machines have become widely used and the new application areas have arisen. In this context, alternating current machines controlled by vector control have become heavily used in industrial applications of developed countries. Therefore, a course in this area is required to prepare our students for research and industrial applications. ( Related Project: dq0 Simulink Model of Induction Machine (Group Work) Scalar Control of Induction Machine (Group Work-Simulation) Power Factor Correction Methods in Power Electronics (Grade: AA) Course description: The qualified usage of the energy has gained more importance. National and international restrictions and standards have been developed about the qualified and effective usage of electrical energy. In recent years, to fulfill the power factor and harmonics values determined in those standards, intensive academic and industrial studies have been implemented on power factor correction (PFC) circuits. ( M.Sc. Thesis Work Details My M.Sc. thesis was Investigation of a Utility-Connected Wind Energy System (in Turkish). My thesis was a project for a telecommunication company. Base Transmission Stations (BTS) are utility connected systems and within this project electrical system of every individual BTS was decided to be supplied by a medium power (<2kW) wind turbine. Hence, the company wanted to decrease bill values. The suggested system has unidirectional power flow with the utility side (from utility to the BTS). A representative power share system is constructed at laboratory, power electronics converters are designed, and results are tabulated. Theoretical Works; CCM Boost Converter Analysis and Modeling: The static and dynamic models of a CCM boost converter with four non-ideal parameters such as Mosfet ON resistance, inductor resistance, diode ON resistance and diode constant voltage drop are obtained with State Space Model. Effects of these non-ideal parameters on steady state and dynamic behaviors of the converter are shown in a detailed manner. 3

5 As a result, it can be said that Mosfet and inductor resistances have the greatest effect on converter behavior, especially for high power / medium or high voltage applications. For high power / low voltage applications, effects of diode parameters also become important. Figure 1. Boost Converter circuit schema and a sample Bode diagram with non-ideal parameter variation. Mosfet Rectifier with Current Sense Method: Diode rectifiers have some disadvantages for low voltage applications. Due to the constant voltage drop parameter of a diode the rectifier efficiency decreases. Mosfet Rectifier circuit is introduced to increase efficiency for rectifier applications. Theoretical calculations are done for power loss of a diode and Mosfet rectifier respectively. Figure 2. Three Phase Uncontrolled Mosfet Rectifier. Power Share System: There may be different energy sources in a hybrid system such as utility, battery, and renewable sources. It s also obvious that there may be different energy forms in this hybrid system. Some sources produce AC voltages and others DC. Power Share is the topic that analyzes the coordination between different sources in a hybrid system. In my thesis work, the system is a Base Transmission Station which has wind turbine source with utility connection. Figure 3. Power Share Concept. 4

6 Experimental Works; 48V/500W CCM Boost Converter Design: Two Boost converters are designed for thesis work, one of them was open loop operating and the other was PID controlled. Input voltage must be between 20V~40V. Efficiencies of both are nearly %90~91. Figure 4. Two Boost Converters: Open Loop Controlled (left), PID Controlled (right). These two Boost Converters are designed for DC share point voltage regulation. Input voltages of the converters are the rectified 3 phase wind turbine output voltage and outputs of the converters are connected to the DC bus of the hybrid system. By this way regulated power from the wind turbine is supplied to the load. PID controller is used for closed loop operation. Since there is a Right Half Plane Zero (RHPZ) in the Boost Converter dynamic system, controller design is a little difficult. Thus, this lead to designing the power stage with taking into consideration of all non-ideal components and controller Bode diagrams. 450W Single Phase Half Wave Mosfet Rectifier Design: Mosfet Rectifier concept is constructed and tested on a single phase half wave rectifier. Mosfet current sensed by a current transducer and Mosfet gate signals are generated above a specified reference current value (1.5A). Gate signals are applied with an opto-coupler based driver. Results are compared with a conventional diode rectifier. In test, Mosfet and Diode semiconductors are selected to have the same voltage/current ratings. Power loss comparisons showed that Mosfet Rectifier is not so much efficient compared to the conventional diode rectifier. Current sense and opto-isolator need is the disadvantages of the Mosfet Rectifier. Figure 5. Mosfet Rectifier Circuit Schema (left), Diode conduction voltage/current (middle), Mosfet conduction voltage/current (right). 2kW Power Share System on a Base Transmission Station: In a Base Transmission Station (BTS), 220V AC voltage is converted into 48V DC by a rectifier. All telecommunication equipments are operating with DC voltage. Also there are some AC loads in BTS such as airconditioner, lamps and some general purpose plugs. Electrical system of the BTS wanted to be supported by a medium power wind turbine (<2kW). 5

7 Figure 6. Diagram of a Base Transmission Electrical System A representative BTS system is constructed at the laboratory with a 2kW power. To achieve the power share the DC bus is selected as the common bus. A motor drive and induction motor synchronous generator pair models the wind turbine. Since the motor drive is operating as constant power mode, this also represents the MPPT operation. Generator output voltage is rectified, regulated by Boost converter, and connected to the DC bus. Some test procedures are applied to this system and results are tabulated below. It can be clearly seen that, wind turbine supplies the maximum power to the load and any changes in the load or wind power is regulated by the utility. Figure 7. Constructed test system at laboratory with all components. Test 1: Activating the Wind Turbine as the Load power is constant. P utility V wind (V DC ) I wind (A DC ) P wind V load (V AC ) I load (A AC ) P load Before After Test 2: Increasing the Wind Turbine power as the Load power is constant. P utility V wind (V DC ) I wind (A DC ) P wind V load (V AC ) I load (A AC ) P load Before After

8 Test 3: Increasing the Load power demand as the Wind Turbine power is constant. P utility V wind (V DC ) I wind (A DC ) P wind V load (V AC ) I load (A AC ) P load Meas Meas Meas Test 4: Deactivating the Wind Turbine as the Load power is constant. P utility V wind (V DC ) I wind (A DC ) P wind V load (V AC ) I load (A AC ) P load Before After Industrial Experiences I have industrial experience where I have work at two power electronics companies. One of them is Detakom Telecommunication Equipments and the other is Baran Electronic Systems. My thesis work is related to Detakom and wide description of my thesis is given above. Therefore, this part will focus on Baran Electronic Systems (BES) company experiences. I worked for BES between November 2009 through September In this company my hand skills and practical experiences has developed. BES is a medium scale, project based R&D Company on power electronics area. I participated in many projects such as; power supplies, static switches, electronic controllers for heating/cooling equipments, battery chargers, and etc I was also responsible for printed circuit board (PCB) design, electronic component selection, test and documentation of products at this company. Some of participated projects and my individual works are presented below. For safety aspects all details of the works cannot be given. 160V/500W Boost Converter and PCB Design: This Boost Converter designed for a GSM company s telecommunication equipment. It is a voltage regulator between battery group and the device. Input voltage is 48V and output voltage is 160V. I have done the magnetic design, PCB design, construction and tests of this converter. Since there were some problems, interleaved edition of this converter is also designed. PCB of this converter can be seen below. Figure 8. Boost Converter (160V/500W) PCB Design. 7

9 25Amp & 100Amp Switch TM : This product family is a battery backup controller for GSM base stations. These devices check the utility voltage and if there is a fault at the utility side, switches battery groups to telecommunication equipments in a short time. By this way, the communication system continues operation. If the fault is gone, it disconnects the battery group from load and charges batteries from utility. I participated this project, wrote a test procedure datasheet and a user s guide. Also constructed and tested this device after production. Figure Amp Switch TM (left) and tested devices at laboratory (right). Wind Charger TM : This product is a controller for utility connected and battery backup wind turbine systems. Devices checks the utility voltage and if there is a fault at the utility side, switches wind turbine output voltage to the battery group. By this way, wind energy is never consumed. If the fault is gone, it disconnects the battery group and switches wind turbine output to the utility side inverter. It also has a LCD screen and measures the total energy generated from wind turbine. I participated this project, designed PCB and selected electronic components of this device. I also documented technical details of this product. Figure 10. Operating algorithm (up left), device case (up right) and PCB of the electronic controller (below) of Wind Charger TM. 8

10 Phase Switch TM : This product is a matrix converter based three phase solid state switch. Input of the product is three phase utility voltages. In normal operation, all these voltages are bypassed to the output side in their respective order via a mechanical switch. If a fault occurs at the utility voltages, such as single or double phase faults, the mechanical switch switches off and the matrix converter starts to operate. The mission of the matrix converter is to disconnect faulty lines and to distribute the correct phase to three output ports. Therefore, output of the switch is always fed by three phase voltage. This product is not suitable for three phase induction machines. Operating modes are shown below. For Figure 7 (right), case, S and T lines are faulty, matrix converter disconnects them and transfers R line to all three output ports. I participated this project, designed PCB and selected electronic components of this device. I also documented technical details of this product. Figure 11. Diagram of Phase Switch TM (left) and all operation modes (right). 9

11 qwertyuiopasdfghjklzxcvbnmq wertyuiopasdfghjklzxcvbnmqw ertyuiopasdfghjklzxcvbnmqwer FURKAN BAŞKURT tyuiopasdfghjklzxcvbnmqwerty PROFESSIONAL PORTFOLIO 2 ACADEMIC & LABORATORY EXPERIENCES uiopasdfghjklzxcvbnmqwertyui baskurtf@itu.edu.tr opasdfghjklzxcvbnmqwertyuiop (535) asdfghjklzxcvbnmqwertyuiopas This document contains detailed explanations, technical information, measurement dfghjklzxcvbnmqwertyuiopasdf about this document you may contact me via the contact information given above. ghjklzxcvbnmqwertyuiopasdfgh results (tables, oscilloscope screenshots, pictures, video links, etc ) and other information related with my academic and laboratory experiences. In case of a question jklzxcvbnmqwertyuiopasdfghjkl zxcvbnmqwertyuiopasdfghjklzx cvbnmqwertyuiopasdfghjklzxcv bnmqwertyuiopasdfghjklzxcvbn mqwertyuiopasdfghjklzxcvbnm qwertyuiopasdfghjklzxcvbnmq wertyuiopasdfghjklzxcvbnmqw ertyuiopasdfghjklzxcvbnmrtyui opasdfghjklzxcvbnmqwertyuiop asdfghjklzxcvbnmqwertyuiopas dfghjklzxcvbnmqwertyuiopasdf

12 Academic Experiences I have started working at Istanbul Technical University / Department of Electrical Engineering at November I am currently research & teaching assistant at Power Electronics Laboratory. Some of my assisted courses and laboratories are listed in my CV but more details are written in this document. ELK331E Power Electronic Circuits (English) 3 Years Course Content: My advisor Asst. Prof. Dr. Deniz Yildirim teaches ELK331E Power Electronic Circuits and I have been the teaching assistant of this course for 3 years. ELK331E is a required course for Electrical Engineering and Control Engineering students. Average of ~60 students takes this course per year. I do two recitation courses in one semester. These recitation courses involve 4 hours totally. Furthermore, students are expected to implement several power converter projects such as Rectifier for LED Lighting, AC Chopper for Dimmer, DC Chopper for PMDC Motor Drive, Inverter for Lamp Lighting and Linear Regulators. I have 4 laboratory hours per week with the students. At the end of the semester all students present their converters. Project poster for Fall 2012 semester can be seen below. ELK453E Industrial Applications of Power Electronics (English) 2 Years Course Content: Asst. Prof. Özgür Üstün teaches ELK453E Industrial Applications of PE and I have been the teaching assistant of this course for 2 years. ELK498E is an elective course for Electrical Engineering and Control Engineering students. Average of ~80 students takes this course per year. I teach five weeks in one semester. These courses involve 15 hours totally. I prepared some technical documents about switch mode power supplies for this course. Formula tables for basic SMPS: Fundamentals of CCM for SMPS: ELK498E Photovoltaic Systems (English) 3 Years Course Content: My advisor Asst. Prof. Dr. Deniz Yildirim teaches ELK498E Photovoltaic Systems and I have been the teaching assistant of this course for 3 years. ELK498E is an elective course for Electrical Engineering students. Average of ~25 students takes this course per year. PROFESSIONAL PORTFOLIO 2 1

13 I do two recitation courses in one semester. These recitation courses involve 4 hours totally. Students are expected to implement a solar panel powered race car. I have 2 laboratory hours per week with students. At the end of the semester all students present their race cars and we conduct a competition with race cars. A photo from the race can be seen below. ELK342 & ELK342E Power Electronics Laboratory (Turkish & English) 3 Years Course Content: Power Electronics Laboratory is a required course for Electrical Engineering and Control Engineering students. Average of ~170 students takes this course per year. Students are expected to conduct five basic power electronics experiments such as Investigation of Voltage/Current Characteristics of Semiconductor Switches, Single Phase Uncontrolled and Controlled Rectifiers, Phase Controlled Single Phase AC Choppers, Single Quadrant Class-A DC Choppers, Single Phase Square Wave and Pulse Width Modulated Inverter. Asst. Prof. Deniz Yildirim is the coordinator of the laboratory, but all experiments are conducted by five research assistants. Laboratory work is 30 hours per semester for an assistant. I am the coordinator of the laboratory assistants. I prepare all experiment training sets, all documents (with Deniz Yildirim), student lists and time-table of the laboratory experiments. I have all responsibility of the safety rules in laboratory course. We conduct a 1 hour briefing to all students about the laboratory rules, safety issues, experiment details and some other helpful information. At 2013 Spring (this semester) a new laboratory assignment is added for students. Hence, all students are expected to implement an individual experiment except that their normal laboratory experiments. This experiment is simpler and different from other laboratory experiments. This individual experiment involves the usage of measurement devices, construction of a test setup, calculating and plotting of electrical parameters. Other information can be read from course website. ELK342 Course Website: PROFESSIONAL PORTFOLIO 2 2

14 ELK431 Electrical Machines Laboratory (Turkish) 3 Years Course Content: Electrical Machines Laboratory is a required course for Electrical Engineering students. Average of ~100 students takes this course per year. Students are expected to conduct ten electrical machines experiments such as Determining Circuit Parameters of Transformer/Induction Motor/DC Motor, Three Phase Wound Rotor and Squirrel Cage IM, Synchronous Machines and etc I am one of the laboratory assistants for this course. I have 20 hours per semester laboratory work for ELK431. Electrical Machines Laboratory is more dangerous for students because there are a lot machines operating. Therefore, I start experiments with safety rules and warn students about their clothes, hands, and long hairs. Laboratory Experiences Power Electronics Laboratory Internships At summer 2012 I was the internship coordinator of five Electrical Engineering and Control Engineering students. These students had one week orientation course about switch mode power supplies and closed loop operation of the converters. Four students were expected to analyze, design, construct and test a basic SMPS converter and the other student designed an AC chopper circuit with phase controller IC TCA785. Some experimental results are given below. 12V / 2A Battery Discharger (Input Current Controlled CCM Boost Converter) This SMPS is an input current controlled converter. Input voltage may be fluctuate between 9V~15V. Inductor current is sensed and controlled by a Type-II controller. Therefore input current of the converter remains constant for changing input voltages. This converter can be used for 12V battery constant current discharging and also solar module test setups. Reference current value can be adjusted between 0.6A~2A. Input power of the converter is consumed on fixed value resistors. Circuit photographs and oscilloscope screenshots under some dynamic tests are given below. PROFESSIONAL PORTFOLIO 2 3

15 Figure 1. Battery Discharger photograph (above), input current waveforms when the input voltage is changed from 9V to 12V: reference current is 0.6A (below-left) and 1.8A (below right). 5V / 25W Buck Converter This Buck converter s input voltage is 12V and output voltage is 5V at 25W. Output voltage is sensed and controlled by a PID controller. Therefore output voltage of the converter remains constant for changing load conditions. Circuit photographs and oscilloscope screenshots under some dynamic tests are given below. Figure 2. Buck Converter circuit (left) and output voltage waveform when the output current is increased from 0.5A to 5A. AC Chopper with Phase Control IC TCA785 This AC chopper is designed with phase control method. TCA785 control IC is implemented and gating signals are applied to triac and AC chopper is tested under resistive load condition. Circuit photograph and oscilloscope screenshots are given below. PROFESSIONAL PORTFOLIO 2 4

16 Figure 3. AC chopper control circuit (left) and firing angles with load voltage (right). Very Low Power Isolated Flyback Converter for Mosfet Driver (In progress) This DC-DC converter is designed with LT8300 IC from Linear Technology Company. Optocoupler Mosfet Drive is one of the Mosfet Gate Drive options, however an extra isolated power supply is needed in this method. A very low power flyback converter with 4 outputs are designed to remove the isolated power supply need. This circuit will be able to drive 4 Mosfets independently. DC Voltmeter/Ammeter with 7-Segment Display (In progress) This circuit is designed with LT7106/LT7107 IC from Linear Technology Company. Input voltage to the circuit is displayed on a 7-Segment LCD display. One of these circuits designed as voltmeter and other an ammeter. Brushless DC Motor Drive with MC33035 IC (In progress) This power converter is designed with MC33035 Brushless DC Motor Controller IC. This project is a prototype now but will be realized and be used for laboratory. Power Electronics Laboratory Work SPWM Square Wave Inverter with 50Hz Transformer (In progress) This Inverter is designed for ELK342 Power Electronics Laboratory course. A sinus waveform generator with variable offset voltage and variable frequency is implemented. Phase Lock Loop controller is used to generate high frequency square waves which are locked to sinus wave. Triangular waves are generated from square waves and they are compared and transferred to the Mosfet gates via optocoupler drives. Also, a switch controls the modulation method and converts the modulation to square wave inverter. Circuit photograph is given. PROFESSIONAL PORTFOLIO 2 5

17 ITU Power Electronics Laboratory Webpage Design I have designed the official laboratory webpage Academic staff, announcements, documents, capabilities, equipment and semiconductor lists, contact information regarding laboratory can be seen on this webpage. ITU Power Electronics Laboratory YouTube Video Course Channel (Turkish only) I am the founder of the Power Electronics Laboratory YouTube Channel. In this video channel, some educational videos regarding ELK342 Power Electronics Laboratory course (training set videos), technical videos about switch mode power supplies, and some other videos involving electronic design are uploaded. The videos prepared by me are listed below with html addresses. You can watch my course performance in these videos. Oscilloscope Features and Usage: NE9023 Training Set Sample Setup: Phase Control IC TCA785: Phase Lock Loop with CD4046: Fundamentals of DC-DC Converters: Fundamentals of State-Space Modeling: CCM Buck Converter Analysis 1: CCM Buck Converter Analysis 2: CCM Boost Converter Analysis: CCM Buck-Boost Converter Analysis: CCM Buck Converter Example Design: CCM Boost Converter Example Design: CCM Buck-Boost Converter Example Design: ZVS Half-Wave QR Buck Converter Presentation: PROFESSIONAL PORTFOLIO 2 6