DC brushless motor system with capacitors

Year	Description
2000	Invention patented by Chi-Cheng Lin, Ching-Hung Lin, and Shun-Yi Tung on April 6th, 2000. Abstract: The present invention relates to a brushless motor system. The brushless motor system has a brushless motor, a motor driver, and at least one sensing circuit. The brushless motor has a rotor, and the sensing circuit is used to detect the rotor position. The sensing circuit has a Hall sensor and two capacitor devices. The Hall sensor has two output ports. As the rotor rotates, the Hall sensor will generate a sensing signal at each of the two output ports. Each of the capacitor devices is connected in series to one of the two output ports of the Hall sensor, and the two capacitor devices are used to filter out DC biases in the two sensing signals. The motor driver is connected to the two capacitor devices for driving the rotor of the brushless motor according to the two sensing signals from the two capacitor devices.
Source: selected by the editor from original sources.

Invention: DC brushless motor system with capacitors