公开(公告)号：US20160285279A1

公开(公告)日：2016-09-29

申请号：US14670385

申请日：2015-03-26

申请人： Integrated Device Technology, Inc.

发明人： Gustavo J. Mehas ,  Anthonius Bakker

IPC分类号： H02J5/00

CPC分类号： H02M7/23 ,  H02J50/10

摘要： A wireless power enabled apparatus includes a wireless power receiver. The wireless power receiver includes one or more receive coils configured to generate an AC power signal responsive to a wireless power signal. The wireless power receiver also includes two or more inductors configured with tightly coupled windings that share a common leakage inductance. Switching circuits are included such that each switching circuit is operably coupled to a corresponding one of the inductors. Control logic is configured to operate switches of the switching circuits such that each of the switching circuits and its corresponding two or more inductors are operated to shift between an energy storage mode for one or more phases of a switching period and an energy transfer mode for other phases of the switching period and the phases combine to comprise an entirety of the switching period.

摘要翻译： 一种无线功率使能装置包括无线电力接收器。 无线电力接收器包括一个或多个接收线圈，其被配置为响应于无线功率信号产生AC电力信号。 无线电力接收器还包括两个或更多个电感器，其配置有共享公共漏电感的紧耦合绕组。 包括开关电路，使得每个开关电路可操作地耦合到相应的一个电感器。 控制逻辑被配置为操作开关电路的开关，使得开关电路及其相应的两个或更多个电感器中的每一个被操作以在开关周期的一个或多个相位的能量存储模式和用于其它的能量传输模式之间移动 开关周期和相位的相位组合以包括整个开关周期。

公开(公告)号：US09991818B2

公开(公告)日：2018-06-05

申请号：US14670385

申请日：2015-03-26

申请人： Integrated Device Technology, Inc.

发明人： Gustavo J. Mehas ,  Anthonius Bakker

IPC分类号： H01F27/42 ,  H01F37/00 ,  H01F38/00 ,  H02M7/23 ,  H02J50/10

CPC分类号： H02M7/23 ,  H02J50/10

摘要： A wireless power enabled apparatus includes a wireless power receiver. The wireless power receiver includes one or more receive coils configured to generate an AC power signal responsive to a wireless power signal. The wireless power receiver also includes two or more inductors configured with tightly coupled windings that share a common leakage inductance. Switching circuits are included such that each switching circuit is operably coupled to a corresponding one of the inductors. Control logic is configured to operate switches of the switching circuits such that each of the switching circuits and its corresponding two or more inductors are operated to shift between an energy storage mode for one or more phases of a switching period and an energy transfer mode for other phases of the switching period and the phases combine to comprise an entirety of the switching period.

公开(公告)号：US10601256B2

公开(公告)日：2020-03-24

申请号：US15046411

申请日：2016-02-17

申请人： INTEGRATED DEVICE TECHNOLOGY, INC.

发明人： Anthonius Bakker ,  Hiroji Natsuki

IPC分类号： H02J50/10 ,  H02J50/40 ,  H02J50/12 ,  H02J50/60

摘要： A system, a circuit, and a method of wireless power transfer using a transmitter and a controller coupled to the transmitter. The controller is configured to perform operations including causing the transmitter to scan a frequency range that includes a maximum frequency and a minimum frequency. The operations further include determining one or more detections based at least on the scan of the frequency range. The detection may include a presence of one or more receivers, an absence of one or more receivers, and/or a presence of a foreign object. The operations include determining one or more further operations based on the one or more detections.