Power supply circuit with active under-voltage protection
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United States of America Patent
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Aug 22, 2017
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N/A
app pub date -
Feb 10, 2015
filing date -
Apr 14, 2014
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Abstract
A power supply circuit includes a protection circuit interconnected with an input voltage to the power supply. The protection circuit includes a detection circuit to detect whether a magnitude of the input voltage is below a defined threshold. The detection circuit comprises a plurality of detectors, each for detecting for a defined voltage waveform, whether its magnitude is below a defined threshold voltage. Logic interconnects the detection circuit to provide a control signal for inhibiting the power supply from providing said output voltage if the input voltage is below the defined threshold for that defined voltage waveform, as detected by the detection circuit.
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