Appotronics Corporation Limited

Zhengde Zhang

Yi Li

Qiang Lv

Le Pan

A color wheel phase detection method and system, and a projection device. The phase detection system comprises a color wheel (), a color wheel motor () that drives the color wheel () to rotate, and a control circuit (); the color wheel motor () is a three-phase motor, and the control circuit () comprises a three-phase driving circuit () for driving the color wheel motor () to operate. The phase detection system further comprises a phase detection device () for detecting the three-phase driving circuit (); when detecting a preset phase, the phase detection device () sends a pulse signal to the control circuit () to implement color wheel phase detection. Therefore, the effects of low costs, high accuracy, and high reliability are achieved.

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Shenzhen, China

Zhengde Zhang