Patent ID: 8934258
Filing Date: 2015-01-13
Classification: H02P

Abstract:
1. A motor controller, comprising: a mother circuit board; and a daughter circuit board; wherein the daughter circuit board is plugged into the mother circuit board to form an electric connection; the mother circuit board comprises a power circuit, a microprocessor unit of the mother circuit board, a rotor position sensing unit, a power inverter unit, and an analog sensing unit; the daughter circuit board comprises a signal interface circuit; the power circuit supplies power to other circuits, the analog sensing unit and the rotor position sensing unit input detection signals to the microprocessor unit of the mother circuit board, the microprocessor unit of the mother circuit board inputs control signals to the power inverter unit, and the microprocessor unit of the mother circuit board communicates with an outside via the signal interface circuit; the signal interface circuit comprises a microprocessor of the daughter circuit board, and a serial digital communication unit of the daughter circuit board; and the mother circuit board further comprises a serial digital communication unit of the mother circuit board, and the microprocessor unit of the mother circuit board communicates with the microprocessor of the daughter circuit board via the serial digital communication unit of the mother circuit board and the serial digital communication unit of the daughter circuit board.