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公开(公告)号：US11496048B2
公开(公告)日：2022-11-08
申请号：US17029927
申请日：2020-09-23
Applicant: DELTA ELECTRONICS, INC.
Inventor： Ming-Wei Chou , Sheng-Jian Chen , Chia-Chang Hsu , Cheng-Yi Lo
Abstract: A power supply with duty cycle limiting circuit includes a conversion circuit, a drive circuit, a control unit, and a duty cycle limiting circuit. The duty cycle limiting circuit converts a control signal into a control voltage, and determines whether a power switch of a power supply is turned off according to the control voltage and a threshold voltage to limit a duty cycle of the power switch.
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