Prolific Technology Inc.

Wan-Yang Chen

Chih-Shih Yang

Jia-Jun Liu

High temperature protection system includes a thermal detection and control circuit, a pulse width modulation signal output circuit, a driving circuit, and a coil module. The thermal detection and control circuit is used for detecting a temperature and outputting at least one corresponding control signal. The pulse width modulation signal output circuit is coupled to the thermal detection and control circuit for generating a pulse width modulation signal according to the at least one control signal. The driving circuit is coupled to the pulse width modulation signal for generating at least one driving voltage. The coil module is coupled to the driving circuit and is operated according to the at least one driving voltage.

High temperature protection system for adjusting duty cycle by using pulse width modulation signal

A high voltage protection system includes a high voltage processing circuit, a pulse width modulation signal outputting circuit, a driving circuit, and a coil module. The high voltage processing circuit is used for receiving and processing a high voltage. The pulse width modulation signal output circuit is coupled to the high voltage processing circuit for generating a pulse width modulation signal. The driving circuit is coupled to the pulse width modulation signal outputting circuit for receiving the pulse width modulation signal and generating a driving voltage accordingly. The coil module is coupled to the driving circuit and is operated according to the driving voltage.

High voltage protection system for adjusting duty cycle by using pulse width modulation signal

A negative voltage protection system includes a negative voltage comparison circuit, a signal processing circuit, a driving circuit, a driving output circuit, a power device, and a coil module. When the coil module generates a back electromotive force, the coil module outputs a negative voltage. When an intensity of the negative voltage detected by the negative voltage comparison circuit is greater than a predetermined value, the signal processing circuit generates a control signal to the driving circuit. The driving circuit controls the driving output circuit and the power device to reduce the intensity of the negative voltage according to the control signal.

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Kaohsiung, Taiwan

Wan-Yang Chen