1. ABOUT ME …

6. MOTOR CONTROLLERS
What do they do?
Terminology

7. BASIC CLASSIFICATION Input: DC, AC (1 phase, 3 phase)
Outut: DC, AC (1 phase, 3 phase)

8. COMMON TRACTION MOTORS
Low HP: PM brushed DC, brushless DC
High HP: series wound DC, SepEx, 3ph induction AC

9. RATINGS Voltage Battery pack voltage Charging voltage Current
Peak rating (what time?)
Continuous (1 hour) rating
How much (what kind) of heat dissipation?
Thermal protection?

11. * *

14. NON-REVERSING NON-REGENING CIRCUIT (1Q)

15. NON-REVERSING REGENING CIRCUIT (2Q)

16. REVERSING REGENING CIRCUIT (4Q)

17. THREE PHASE INVERTER BRIDGE

18. BUILDING BLOCKS

19. DESIGN CONSIDERATIONS
Power component choice (MOSFET, IGBT)
Power module vs. paralleling
Structural arrangement
Enclosing (sealed or not)
Power supply circuit (linear, switch-mode)
Gate drivers (discrete, Integrated circuit)
Current sensing (shunt, hall effect)

20. DESIGN PROCESS Circuit schematic PC Boards layout
Microcontroller code writing
Mechanical design/drawings
Prototypes built
Performance testing
Heat testing
In-application testing

21. DC vs. AC ….

22. DEMOS…