Patent ID: 9647594
Date: 2017-05-09
CPC Classifications: H02P

Claim:
1. A method of controlling a flyback control mode-based controller for a motor having rotor and a motor winding, wherein the flybock control mode-based controller comprises a power supply circuit, a position detection circuit, a current detection circuit, a control circuit, and a power output circuit comprising an energy conversion unit which comprises a control switch and an energy conversion circuit in a controllable manner, wherein the method comprises the steps of: in response to a position of the rotor detected by said position detection circuit, generating a corresponding positioning signal to control each phase of the motor winding to release stored energy through said power output circuit, generating work at the time when a power of the motor is cut off by the controller, configuring said energy conversion circuit to include at least one of a capacitor C circuit, an inductor L circuit, and a LC circuit, when a power supply of the motor is disconnected, inducting said capacitor C circuit, said inductor L circuit, and/or said LC circuit of said energy conversion circuit with the motor winding in parallel or in series to form an oscillation circuit, and pre-storing the energy in the motor winding to achieve attenuation of periodic oscillations.