公开(公告)号：US09985462B2

公开(公告)日：2018-05-29

申请号：US14980296

申请日：2015-12-28

Applicant: BROADCOM CORPORATION

Inventor： Vadim Bishtein ,  Marius Ionel Vladan

IPC: H01F27/42 ,  H02J7/02 ,  H03F1/02 ,  H03F3/217 ,  H03F3/24 ,  H02J7/00 ,  H02J50/10 ,  H02J50/40 ,  H02J7/34

CPC classification number: H02J7/025 ,  H02J7/0027 ,  H02J7/345 ,  H02J50/10 ,  H02J50/40 ,  H03F1/0294 ,  H03F3/2171 ,  H03F3/2173 ,  H03F3/245

Abstract: Aspects of the subject disclosure may include, for example, a wireless power receiver configured to receive a wireless power signal from a power transmitting unit. A wireless radio unit is configured to communicate with the power transmitting unit. A controllable rectifier circuit is configured to rectify the wireless power signal. The controllable rectifier circuit can include a rectifier configured to generate a rectified voltage from the wireless power signal, based on switch control signals. A rectifier control circuit is configured to generate the switch control signals and to generate first control data that indicates a first rectifier duty cycle of the switch control signals. The wireless radio unit sends the first control data to the power transmitting unit. Other embodiments are disclosed.

公开(公告)号：US20160164410A1

公开(公告)日：2016-06-09

申请号：US14575682

申请日：2014-12-18

Applicant: Broadcom Corporation

Inventor： Marius Ionel Vladan

IPC: H02M3/158

CPC classification number: H02M3/1588 ,  H02M2001/0058 ,  Y02B70/1466 ,  Y02B70/1491

Abstract: A power converter is described herein. The power converter may be configured to enable a high-side switch when a resonating voltage at a switching net coupled between the high-side switch and a low-side switch reaches a maximum voltage while the power converter operates in a discontinuous current mode. The power converter may sample the resonating voltage at the switching net at a time when the high-side switch is enabled and compare the sampled voltage with a previously-sampled voltage of the switching net. A frequency of an oscillating signal that drives the activation of the high-side switch is periodically adjusted based on the comparison, which causes the high-side switch to be enabled at different times with respect to the resonating voltage. The frequency of the oscillating signal is continuously adjusted such that the high-side switch is enabled at time(s) where the resonating voltage reaches (or is near) its maximum voltage.

Abstract translation: 这里描述了功率转换器。 功率转换器可以被配置为当在高侧开关和低侧开关之间的开关网处的谐振电压达到最大电压时，在功率转换器以不连续电流模式工作时，能够实现高侧开关。 功率转换器可以在高边开关使能时对开关网的谐振电压进行采样，并将采样电压与开关网的先前采样电压进行比较。 基于比较来周期性地调节驱动高侧开关的激活的振荡信号的频率，这使得高侧开关在相对于谐振电压的不同时间被使能。 振荡信号的频率被连续地调节，使得在谐振电压到达（或接近）其最大电压的时间段使能高侧开关。

公开(公告)号：US09912171B2

公开(公告)日：2018-03-06

申请号：US14790831

申请日：2015-07-02

Applicant: BROADCOM CORPORATION

Inventor： Marius Ionel Vladan

IPC: H02J5/00 ,  H02J7/02 ,  H02J17/00 ,  H02J50/10 ,  H02J50/40

CPC classification number: H02J5/005 ,  G01S1/00 ,  H02J7/025 ,  H02J50/10 ,  H02J50/40

Abstract: Aspects of the subject disclosure may include, for example, a wireless power transmitter that includes a coil assembly configured to transmit a power signal to a power receiving unit of at least one wireless power client. The coil assembly includes a first coil and a second coil configured to generate the power signal via a combined magnetic field. A first driver is configured to generate a first current signal on the first coil. A second driver is configured to generate a second current signal on the second coil at a first controllable phase relative to the first current signal to control the combined magnetic field. Other embodiments are disclosed.

公开(公告)号：US20160365737A1

公开(公告)日：2016-12-15

申请号：US14790831

申请日：2015-07-02

Applicant: BROADCOM CORPORATION

Inventor： Marius Ionel Vladan

IPC: H02J5/00 ,  H02J7/02

CPC classification number: H02J5/005 ,  G01S1/00 ,  H02J7/025 ,  H02J50/10 ,  H02J50/40

Abstract: Aspects of the subject disclosure may include, for example, a wireless power transmitter that includes a coil assembly configured to transmit a power signal to a power receiving unit of at least one wireless power client. The coil assembly includes a first coil and a second coil configured to generate the power signal via a combined magnetic field. A first driver is configured to generate a first current signal on the first coil. A second driver is configured to generate a second current signal on the second coil at a first controllable phase relative to the first current signal to control the combined magnetic field. Other embodiments are disclosed.

Abstract translation: 主题公开的方面可以包括例如无线电力发射机，其包括被配置为向至少一个无线电力客户端的电力接收单元发送功率信号的线圈组件。 线圈组件包括第一线圈和被配置为经由组合磁场产生功率信号的第二线圈。 第一驱动器被配置为在第一线圈上产生第一电流信号。 第二驱动器被配置为在第二线圈上以相对于第一电流信号的第一可控相位产生第二电流信号以控制组合磁场。 公开了其他实施例。

公开(公告)号：US20160111894A1

公开(公告)日：2016-04-21

申请号：US14980296

申请日：2015-12-28

Applicant: BROADCOM CORPORATION

Inventor： Vadim Bishtein ,  Marius Ionel Vladan

IPC: H02J5/00 ,  H02J7/02

CPC classification number: H02J7/025 ,  H02J7/0027 ,  H02J7/345 ,  H02J50/10 ,  H02J50/40 ,  H03F1/0294 ,  H03F3/2171 ,  H03F3/2173 ,  H03F3/245

Abstract: Aspects of the subject disclosure may include, for example, a wireless power receiver configured to receive a wireless power signal from a power transmitting unit. A wireless radio unit is configured to communicate with the power transmitting unit. A controllable rectifier circuit is configured to rectify the wireless power signal. The controllable rectifier circuit can include a rectifier configured to generate a rectified voltage from the wireless power signal, based on switch control signals. A rectifier control circuit is configured to generate the switch control signals and to generate first control data that indicates a first rectifier duty cycle of the switch control signals. The wireless radio unit sends the first control data to the power transmitting unit. Other embodiments are disclosed.

Abstract translation: 主题公开的方面可以包括例如被配置为从电力发送单元接收无线电力信号的无线电力接收器。 无线无线电单元被配置为与电力发送单元通信。 可控整流电路被配置为对无线功率信号进行整流。 可控整流电路可以包括被配置为基于开关控制信号从无线功率信号产生整流电压的整流器。 整流器控制电路被配置为产生开关控制信号并产生指示开关控制信号的第一整流器占空比的第一控制数据。 无线电单元将第一控制数据发送到电力发送单元。 公开了其他实施例。