Input voltage detecting circuit and power supply having such...

Details Input voltage detecting circuit and power supply having such... Input voltage detecting circuit and power supply having such...

2009-04-28

2011-11-29

Berhane, Adolf (Department: 2838)

Electricity: power supply or regulation systems

Input level responsive

Reexamination Certificate

active

08067930

ABSTRACT:
An input voltage detecting circuit includes an input circuit, a signal processing circuit and an output circuit. The input circuit is used for processing the intensity and the waveform of an input voltage, thereby generating a first signal, wherein the first signal and the input voltage have similar time sequences. The signal processing circuit is connected to the input circuit for reducing a first delaying time of the first signal, thereby generating a second signal having a second delaying time shorter than the first delaying time. The output circuit is connected to the signal processing circuit for processing the intensity and the waveform of the second signal, thereby generating the power status signal. If the input voltage is uninterrupted, the power status signal is in an uninterrupted status. If the input voltage is interrupted, the power status signal is in an interrupted status.

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