Himax Technologies, Inc.

Yu-Han Chen

Yaw-Guang Chang

Jia-Ming He

The invention provides a power system for monitoring a working environment of a monitored circuit and adjusting a working voltage of the monitored circuit includes: a power circuit, a voltage-controlled oscillator and a counter. The power circuit is configured to output the working voltage to the monitored circuit through a power supply path. The voltage-controlled oscillator is disposed in or around the monitored circuit and is electrically connected to the power supply path and a ground path to which the monitored circuit is electrically connected, and is configured to output an oscillation frequency in accordance with a signal variation on the power supply path and the ground path. The counter is electrically connected to the voltage-controlled oscillator and is configured to generate a counting number signal in accordance with the oscillation frequency and a synchronizing signal, thereby adjusting the working voltage outputted to the monitored circuit.

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Tainan, Taiwan

Yu-Han Chen