CONTROLLER FOR CONTROLLING BLOCKING SWITCH OF POWER CONVERTER
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United States of America
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Issued Date -
Apr 3, 2025
app pub date -
Nov 15, 2023
filing date -
Nov 15, 2023
priority date (Note) -
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status (Latency Note)
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Abstract
A controller for controlling a blocking switch of a power converter is provided. The controller includes a control pin and a sensing circuit. The control pin is coupled to a control terminal of the blocking switch and an output terminal of the blocking switch. The sensing circuit includes a control switch and a judgment circuit. A first terminal of the control switch is coupled to the control pin. A second terminal of the control switch is coupled to a reference low voltage. The judgment circuit turns on the control switch during a period when the blocking switch is turned off to obtain a sensing current value of a current flowing through the control switch. When the sensing current value is lower than a reference current value, the judgment circuit provides a notification signal for allowing the blocking switch to be turned on.
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