Patent ID: 7772795

Claim:
A motor position signal processing apparatus, electrically coupled to a signal processor and an optical encoder of a motor control system, for receiving signals A, B outputted by the optical encoder, signals U, V, W and a signal Z for controlling the operation of a motor, the motor position signal processing apparatus comprising: a first switch, electrically coupled to the optical encoder; a second switch, electrically coupled to the optical encoder and the first switch; a first signal integration amplifier, electrically coupled to the first switch and the second switch; a first separator, electrically coupled to the first signal integration amplifier and the signal processor; a second signal integration amplifier, electrically coupled to the first switch and the second switch; a second separator, electrically coupled to the second signal integration amplifier and the signal processor; a third signal integration amplifier, electrically coupled to the first switch and the second switch; a third separator, electrically coupled to the third signal integration amplifier and the signal processor; a fourth separator, electrically coupled to the signal processor; and an inverter, electrically coupled to the fourth separator, the first switch and the second switch; wherein an enable signal is outputted by the signal processor and processed by the inverter to switch the operation of the first or second switch, and an incremental signal, a motor mechanical position signal and a reset correction signal outputted by the optical encoder are processed by the first, second and third signal integration amplifiers respectively and transmitted to the signal processor.