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公开(公告)号：US20230119541A1
公开(公告)日：2023-04-20
申请号：US17965938
申请日：2022-10-14
发明人： Zhan Chen , Qiukai Huang , Jin Jin , Guiying Zhang
摘要： A method of controlling a switch-mode converter can include: obtaining an overcurrent reference threshold according to an output voltage sampling signal indicative of an output voltage of the switch-mode converter; and generating an over current protection triggering signal in response to an output current sampling signal indicative of an output current of the switch-mode converter and the overcurrent reference threshold meet a predetermined criterion, thereby triggering the switch-mode converter to enter a protection state.
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2.发明公开公开(公告)号：US20230170813A1
公开(公告)日：2023-06-01
申请号：US17992686
申请日：2022-11-22
发明人： Zhan Chen , Jin Jin , Guiying Zhang , Hongxing Wang
CPC分类号： H02M5/08 , H02M1/0009 , H02M1/0045 , H02M1/0087
摘要： A sampling circuit for a switching power supply, can include: a first sampling circuit configured to acquire a first sampling signal of a current flowing through an inductor in the switching power supply; and a second sampling circuit configured to obtain a compensation signal with a same rising slope as the first sampling signal within a turn-off delay time of a power switch in the switching power supply, and to superimpose the compensation signal on the first sampling signal to generate a second sampling signal.
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3.发明授权公开(公告)号：US12057781B2
公开(公告)日：2024-08-06
申请号：US17992686
申请日：2022-11-22
发明人： Zhan Chen , Jin Jin , Guiying Zhang , Hongxing Wang
CPC分类号： H02M5/08 , H02M1/0009 , H02M1/0045 , H02M1/0087
摘要： A sampling circuit for a switching power supply, can include: a first sampling circuit configured to acquire a first sampling signal of a current flowing through an inductor in the switching power supply; and a second sampling circuit configured to obtain a compensation signal with a same rising slope as the first sampling signal within a turn-off delay time of a power switch in the switching power supply, and to superimpose the compensation signal on the first sampling signal to generate a second sampling signal.
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