1. team 2 Electricivic Ben Dannan Mark Snyder Matt Klutzke Mike Mitchell 1

2. Design Overview 2  Electric Drive System for mid-size passenger vehicles 100kW (approx. 130 hp) FPGA based all digital control Goal is to be more compact than standard industry drives due to reduced complexity of circuit Screen with UI for real-time status display (RPM, temperature, battery life, etc.)

3. Power System Design Constraints Considered for Circuit Design 3  High Power Device  Precision Current Control with Three Phases  High Speed Sensors  Digital Filtering  I/O Requirements IGBTs, Gate Drivers, ADCs, Microcontroller interface, LCD

4. BUCK CONVERTER 4

5. POWER SUPPLY MODULE 5 3.3V 2.5V 1.2V

6. FPGA 6

7. MEMORY 7

8. CURRENT SENSOR & ADC for EXCITOR 8

9. GATE DRIVER & IGBT for EXCITER 9

10. CURRENT SENSOR & ADC for PHASE A 10

11. CURRENT SENSOR & ADC for PHASE B 11

12. CURRENT SENSOR & ADC for PHASE B 12

13. CURRENT SENSOR & ADC for PHASE C 13

14. GATE DRIVER & IGBT for one INDUCTOR INPUT TO MOTOR 14 6 pairs of IGBTs per phase leg Why so many IGBTs? Commanding the same current on each of the 6 pairs of IGBTs

15. MOTOR with ALL INPUTS 15 1 inductor per pair of IGBTs Why so many Inductors? Ripple components cancel at input and the output to the motor is a smoother more stable current

16. Micro-controller & LCD Driver 16

17. LCD with Header 17