PROTECTION CIRCUIT, SWITCH CONTROL CIRCUIT, AND POWER SUPPLY DEVICE COMPRISING THE SAME
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United States of America Patent
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Issued Date -
May 8, 2014
app pub date -
Nov 5, 2013
filing date -
Nov 5, 2012
priority date (Note) -
Abandoned
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Abstract
Exemplary embodiments relate to a protection circuit, a switch circuit, and a power supply device including the same. The protection circuit includes: a detection circuit that generates a detection voltage that is increased by fluctuation of a comparison voltage; and an SCR (Silicon-Controlled Rectifier Thyristor) that includes a gate where the detection voltage is inputted, an anode electrically connected to a power voltage, and a cathode connected to a predetermined reference voltage, which is turned on when the detection voltage is inputted in the gate, and is turned off when a current does not flow to the anode.
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