| 摘要 |
A converting sub-circuit board of interface signals of electronically commutated motor is provided. A plurality of unit circuits are integrated on the sub-circuit board, and a microprocessor is arranged thereon. Five ports are provided between the sub-circuit board and an user side control system. The ports are respectively a half-duplex asynchronous serial transmission port, a DC power source input port, a control signals common port, an analogue control signal input port, and a speed-feedback signal output port. The sub-circuit board can reduce the number of the ports. |
