Control method and control circuit for voltage switch circuit and usb power delivery
A method of controlling a voltage switch circuit can include: controlling an output voltage of the voltage switch circuit to be switched from a first voltage input to a first switch circuit to a second voltage input to a second switch circuit to be no larger than a smaller one of the first and second voltages before the second switch circuit starts conducting; switching the output voltage to the second voltage when the second switch circuit starts conducting, where outputs of the first and second switch circuits are coupled together to provide the output voltage; and controlling the first switch circuit to turn off after the second switch circuit conducts and when the output voltage is no larger than the smaller one of the first and second voltages.
Silergy Semiconductor Technology (Hangzhou) LTD
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H02M G05F H02M H02M H02M H02J
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Junjie Yongbin
Li Cai