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公开(公告)号：US08913409B2
公开(公告)日：2014-12-16
申请号：US12898898
申请日：2010-10-06
Applicant: Shu Yuen Ron Hui , Wenxing Zhong , Ho Wing Choi
Inventor： Shu Yuen Ron Hui , Wenxing Zhong , Ho Wing Choi
IPC: H02M7/219
CPC classification number: H02M7/217 , H02M7/06 , H02M7/2173 , H02M7/219 , H02M2007/2195 , Y02B70/1408
Abstract: Systems, methods, and devices that employ self-driven gate-drive circuitry to facilitate controlling power switches to emulate a diode bridge to synchronously rectify a power signal are presented. A single-phase or multi-phase synchronous rectifier can comprise at least a first pair of switches of a first conducting path and a second pair of switches of a second conducting path that can form or emulate a diode bridge. To facilitate emulating turn-on and turn-off conditions of a diode, a switch can be turned on when voltage across the switch is forward-biased and turned off when switch current is reversed; also, there can be at least one current-controlled switch in each conducting path. Self-driven gate-drive circuitry employs low power components that can facilitate controlling respective switching of the at least first pair and second pair of switches, wherein switching of the switches is also controlled at start-up to emulate a diode bridge.
Abstract translation: 提出了采用自驱动栅极驱动电路以便于控制功率开关来仿真二极管桥以同步整流功率信号的系统，方法和装置。 单相或多相同步整流器可以包括可形成或模拟二极管桥的第一导电路径和第二导通路径的第二对开关的至少第一对开关。 为了便于仿真二极管的导通和关断条件，当开关电流反向时，开关两端的电压正向偏置并关断时，开关可以导通; 此外，在每个导电路径中可以存在至少一个电流控制开关。 自驱动栅极驱动电路采用低功率组件，其可以有助于控制至少第一对和第二对开关的相应开关，其中开关的开关也在启动时被控制以仿真二极管桥。
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Patent Agency Ranking
公开(公告)号：US20140028112A1
公开(公告)日：2014-01-30
申请号：US13979532
申请日：2011-01-14
Applicant: Ron Shu Yuen Hui , Wenxing Zhong
Inventor： Ron Shu Yuen Hui , Wenxing Zhong
IPC: H01F38/14
Abstract: The present invention provides an apparatus for wireless power transfer including three or more coils, each coil defining a respective coil plane, and the coils being arranged in one or more power flow paths whereby each coil can be magnetically coupled to one or more of the other coils thereby to wirelessly transfer power along the one or more power flow paths. The present invention also provides a method for wirelessly transferring power, the method including: providing three or more coils, each coil defining a respective coil plane; and arranging the coils in one or more power flow paths whereby each coil can be magnetically coupled to one or more of the other coils thereby to wirelessly transfer power along the one or more power flow paths.
Abstract translation: 本发明提供了一种用于无线功率传输的装置，包括三个或更多个线圈，每个线圈限定相应的线圈平面，并且线圈被布置在一个或多个功率流动路径中，由此每个线圈可以磁耦合到一个或多个另一个 线圈，从而沿着一个或多个功率流路径无线地传递功率。 本发明还提供一种无线传输功率的方法，所述方法包括：提供三个或更多个线圈，每个线圈限定相应的线圈平面; 以及将线圈布置在一个或多个功率流动路径中，由此每个线圈可以磁耦合到一个或多个其它线圈，从而沿着一个或多个功率流动路径无线地传递功率。
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公开(公告)号：US08829884B2
公开(公告)日：2014-09-09
申请号：US13512676
申请日：2011-01-12
Applicant: Wenxing Zhong , Sinan Li , Wu Chen , Shu Yuen Ron Hui
Inventor： Wenxing Zhong , Sinan Li , Wu Chen , Shu Yuen Ron Hui
CPC classification number: H05B33/0827 , G05F3/26
Abstract: The present invention provides a current balancing circuit and method for balancing the respective currents in a plurality of parallel circuit branches in a target circuit. The current balancing circuit including: a plurality of balancing transistors, each having a collector, an emitter, and a base, the collector and emitter of each balancing transistor connected in series with a respective circuit branch; and a selection circuit for selectively connecting the circuit branch having the smallest current amongst the circuit branches to the bases of each balancing transistor.
Abstract translation: 本发明提供一种用于平衡目标电路中的多个并联电路分支中的相应电流的电流平衡电路和方法。 电流平衡电路包括：多个平衡晶体管，每个具有集电极，发射极和基极，每个平衡晶体管的集电极和发射极与相应的电路分支串联; 以及用于选择性地将电路分支中具有最小电流的电路分支连接到每个平衡晶体管的基极的选择电路。
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公开(公告)号：US20120286753A1
公开(公告)日：2012-11-15
申请号：US13512676
申请日：2011-01-12
Applicant: Wenxing Zhong , Sinan Li , Wu Chen , Shu Yuen Ron Hui
Inventor： Wenxing Zhong , Sinan Li , Wu Chen , Shu Yuen Ron Hui
CPC classification number: H05B33/0827 , G05F3/26
Abstract: The present invention provides a current balancing circuit and method for balancing the respective currents in a plurality of parallel circuit branches in a target circuit. The current balancing circuit including: a plurality of balancing transistors, each having a collector, an emitter, and a base, the collector and emitter of each balancing transistor connected in series with a respective circuit branch; and a selection circuit for selectively connecting the circuit branch having the smallest current amongst the circuit branches to the bases of each balancing transistor.
Abstract translation: 本发明提供一种用于平衡目标电路中的多个并联电路分支中的相应电流的电流平衡电路和方法。 电流平衡电路包括：多个平衡晶体管，每个具有集电极，发射极和基极，每个平衡晶体管的集电极和发射极与相应的电路分支串联; 以及用于选择性地将电路分支中具有最小电流的电路分支连接到每个平衡晶体管的基极的选择电路。
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公开(公告)号：US10566133B2
公开(公告)日：2020-02-18
申请号：US13979532
申请日：2011-01-14
Applicant: Ron Shu Yuen Hui , Wenxing Zhong
Inventor： Ron Shu Yuen Hui , Wenxing Zhong
Abstract: The present invention provides an apparatus for wireless power transfer including three or more coils, each coil defining a respective coil plane, and the coils being arranged in one or more power flow paths whereby each coil can be magnetically coupled to one or more of the other coils thereby to wirelessly transfer power along the one or more power flow paths. The present invention also provides a method for wirelessly transferring power, the method including: providing three or more coils, each coil defining a respective coil plane; and arranging the coils in one or more power flow paths whereby each coil can be magnetically coupled to one or more of the other coils thereby to wirelessly transfer power along the one or more power flow paths.
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公开(公告)号：US20110199799A1
公开(公告)日：2011-08-18
申请号：US12898898
申请日：2010-10-06
Applicant: Shu Yuen Ron Hui , Wenxing Zhong , Ho Wing Choi
Inventor： Shu Yuen Ron Hui , Wenxing Zhong , Ho Wing Choi
IPC: H02M7/217
CPC classification number: H02M7/217 , H02M7/06 , H02M7/2173 , H02M7/219 , H02M2007/2195 , Y02B70/1408
Abstract: Systems, methods, and devices that employ self-driven gate-drive circuitry to facilitate controlling power switches to emulate a diode bridge to synchronously rectify a power signal are presented. A single-phase or multi-phase synchronous rectifier can comprise at least a first pair of switches of a first conducting path and a second pair of switches of a second conducting path that can form or emulate a diode bridge. To facilitate emulating turn-on and turn-off conditions of a diode, a switch can be turned on when voltage across the switch is forward-biased and turned off when switch current is reversed; also, there can be at least one current-controlled switch in each conducting path. Self-driven gate-drive circuitry employs low power components that can facilitate controlling respective switching of the at least first pair and second pair of switches, wherein switching of the switches is also controlled at start-up to emulate a diode bridge.
Abstract translation: 提出了采用自驱动栅极驱动电路以便于控制功率开关来仿真二极管桥以同步整流功率信号的系统，方法和装置。 单相或多相同步整流器可以包括可形成或模拟二极管桥的第一导电路径和第二导通路径的第二对开关的至少第一对开关。 为了便于仿真二极管的导通和关断条件，当开关电流反向时，开关两端的电压正向偏置并关断时，开关可以导通; 此外，在每个导电路径中可以存在至少一个电流控制开关。 自驱动栅极驱动电路采用低功率组件，其可以有助于控制至少第一对和第二对开关的相应开关，其中开关的开关也在启动时被控制以仿真二极管桥。
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