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公开(公告)号：US10931147B2
公开(公告)日：2021-02-23
申请号：US16133101
申请日：2018-09-17
发明人： Junxiao Chen , Jinbiao Huang , Zeng Li
摘要： A converter comprises a first switch, a capacitor and a second switch connected in series between an input voltage source and an output filter, a third switch connected between a common node of the first switch and the capacitor, and a common node of the second switch and the output filter and a fourth switch connected between a common node of the capacitor and the second switch, and ground.
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公开(公告)号：US20200379018A1
公开(公告)日：2020-12-03
申请号：US16442676
申请日：2019-06-17
发明人： Caiqiang Zhou , Sichao Liu
摘要： An apparatus includes a power switch configured to conduct a dc or ac current, a sense switch having a first drain/source terminal and a gate connected to a first drain/source terminal and a gate of the power switch respectively, an amplifier having a first input coupled to a second drain/source terminal of the power switch and a second input coupled to a second drain/source terminal of the sense switch and a first current sense processing switch having a gate connected to an output of the amplifier.
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公开(公告)号：US20200028381A1
公开(公告)日：2020-01-23
申请号：US16585033
申请日：2019-09-27
发明人： Sichao Liu , Jinbiao Huang , Dongdong Yuan
IPC分类号： H02J50/10 , H02J7/02 , G01R31/02 , G01R31/302 , H02J50/60
摘要： A device includes a positive current sense amplifier having two inputs connected to a drain and a source of a power switch respectively through a plurality of positive current sense switches, and a negative current sense amplifier having two inputs connected to the drain and the source of the power switch respectively through a plurality of negative current sense switches.
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公开(公告)号：US10454312B2
公开(公告)日：2019-10-22
申请号：US15458756
申请日：2017-03-14
发明人： Hengchun Mao , Bo Yang , Zeng Li
摘要： An apparatus comprises a sense transistor having a gate and a source directly connected to a gate and a source of a power transistor of a resonant converter respectively, wherein the resonant converter comprises a primary side and a secondary side magnetically coupled to the primary side, a current sense and amplification circuit comprising an amplifier having inputs connected to a drain of the sense transistor and a drain of the power transistor respectively, an analog-to-digital converter connected to an output of the current sense and amplification circuit and a digital controller connected to an output of the analog-to-digital converter, wherein the digital controller is configured to modulate a variable capacitance network of the resonant converter based upon a current flowing through the sense transistor.
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公开(公告)号：US20190305598A1
公开(公告)日：2019-10-03
申请号：US16133101
申请日：2018-09-17
发明人： Junxiao Chen , Jinbiao Huang , Zeng Li
摘要： A converter comprises a first switch, a capacitor and a second switch connected in series between an input voltage source and an output filter, a third switch connected between a common node of the first switch and the capacitor, and a common node of the second switch and the output filter and a fourth switch connected between a common node of the capacitor and the second switch, and ground.
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公开(公告)号：US10826325B2
公开(公告)日：2020-11-03
申请号：US15901136
申请日：2018-02-21
发明人： Sichao Liu , Jinbiao Huang , Xintao Wang
摘要： An apparatus comprises a power converter connected between an input power source and a wireless power transfer system, wherein the power converter is configured to regulate a voltage applied to the wireless power transfer system when a load current of the wireless power transfer system is less than a first threshold and the power converter is configured to operate in an always-on mode when the load current of the wireless power transfer system is greater than the first threshold.
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公开(公告)号：US20190356149A1
公开(公告)日：2019-11-21
申请号：US15985227
申请日：2018-05-21
发明人： Zeng Li , Jinbiao Huang , Xintao Wang
摘要： An apparatus comprises a rectifier configured to convert an alternating current voltage into a direct current voltage and a high efficiency power converter comprising a first stage and a second stage connected in cascade, wherein the first stage configured to operate in various operating modes for charging a battery and the second stage configured to provide isolation between the first stage and the battery.
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公开(公告)号：US20190245382A1
公开(公告)日：2019-08-08
申请号：US15891950
申请日：2018-02-08
发明人： Sichao Liu , Jinbiao Huang , Dongdong Yuan
IPC分类号： H02J50/10 , H02J7/02 , H02J50/60 , G01R31/302 , G01R31/02
摘要： A device comprises a positive current sense apparatus having two inputs connected to a drain and a source of a power switch respectively, the positive current sense apparatus comprising a first amplifier, a first sense switch and a second sense switch, a negative current sense apparatus having two inputs connected to the drain and the source of the power switch respectively, the negative current sense apparatus comprising a second amplifier, a third sense switch and a fourth sense switch and a current sense processing apparatus connected to the positive current sense apparatus and the negative current sense apparatus respectively.
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公开(公告)号：US10516296B2
公开(公告)日：2019-12-24
申请号：US15891950
申请日：2018-02-08
发明人： Sichao Liu , Jinbiao Huang , Dongdong Yuan
IPC分类号： H02J50/10 , H02J7/02 , G01R31/02 , G01R31/302 , H02J50/60
摘要： A device comprises a positive current sense apparatus having two inputs connected to a drain and a source of a power switch respectively, the positive current sense apparatus comprising a first amplifier, a first sense switch and a second sense switch, a negative current sense apparatus having two inputs connected to the drain and the source of the power switch respectively, the negative current sense apparatus comprising a second amplifier, a third sense switch and a fourth sense switch and a current sense processing apparatus connected to the positive current sense apparatus and the negative current sense apparatus respectively.
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公开(公告)号：US20190386517A1
公开(公告)日：2019-12-19
申请号：US16381367
申请日：2019-04-11
发明人： Sichao Liu , Junxiao Chen , Gang Dai
摘要： A device comprises a first current sense apparatus coupled to a first switching element of a power conversion apparatus, a second current sense apparatus coupled to a second switching element of the power conversion apparatus and a current sense processing apparatus configured to receive detected current signals from the first current sense apparatus and the second current sense apparatus, and generate an average current signal and a peak current signal.
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