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1.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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2.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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公开(公告)号：US20220407428A1
公开(公告)日：2022-12-22
申请号：US17747282
申请日：2022-05-18
发明人： Jiabin Chen , Hongxing Wang
摘要： A voltage detection circuit for a switching converter having a switch and a magnetic element connected in series, where a first terminal of the switch and a first terminal of the magnetic element are connected to a common node, the voltage detection circuit including: an average circuit configured to receive a first voltage across the switch, and to generate a second voltage representing an average value of the first voltage; and where the second voltage represents a voltage between a second terminal of the switch and a second terminal of the magnetic element in a steady state of the switching converter.
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