公开(公告)号：US20140319921A1

公开(公告)日：2014-10-30

申请号：US14247617

申请日：2014-04-08

Applicant: Texas Instruments Incorporated

Inventor： Gianpaolo Lisi ,  Gerard Socci ,  Ali Djabbari ,  Rajaram Subramonian ,  Kosha Mahmodieh

IPC: G05F1/12 ,  H01F38/14

CPC classification number: G05F1/12 ,  H02M7/53803 ,  Y02B70/1441

Abstract: A resonant power transfer system includes resonant circuitry (26) including an inductor coil (59) and a resonant capacitor (51) coupled to a first terminal (27) of the inductor coil, wherein the inductor coil and the resonant capacitor resonate to produce an excitation signal (IS) and a state variable signal (VCS1). Sub-sampling circuitry (30) samples first and second points of the state variable signal at a rate which is substantially less than the RF frequency of the state variable signal. Information recovery circuitry (32) produces a state variable parameter signal representing a parameter (A) of the state variable signal from information in the first and second sampled points. Control circuitry (38) produces a first control signal in response to the state variable parameter signal. Detection and optimization circuitry (41) produces a second control signal in response to the state variable parameter signal. Voltage regulation circuitry (45) produces a regulated supply voltage in response to the first control signal. Switching inverter circuitry produces the excitation signal in response to the regulated supply voltage and the second control signal.

Abstract translation: 谐振功率传输系统包括谐振电路（26），其包括耦合到电感线圈的第一端子（27）的电感器线圈（59）和谐振电容器（51），其中电感线圈和谐振电容器谐振以产生 激励信号（IS）和状态变量信号（VCS1）。 子采样电路（30）以基本上小于状态变量信号的RF频率的速率对状态变量信号的第一和第二点进行采样。 信息恢复电路（32）根据第一和第二采样点中的信息产生状态变量参数信号，该状态变量参数信号表示状态变量信号的参数（A）。 控制电路（38）响应于状态可变参数信号产生第一控制信号。 检测和优化电路（41）响应于状态可变参数信号产生第二控制信号。 电压调节电路（45）响应于第一控制信号产生稳定的电源电压。 开关逆变器电路响应于稳定的电源电压和第二控制信号产生激励信号。

公开(公告)号：US20180152048A1

公开(公告)日：2018-05-31

申请号：US15362563

申请日：2016-11-28

Applicant: Texas Instruments Incorporated

Inventor： Kosha Mahmodieh ,  Gianpaolo Lisi ,  Ali Djabbari ,  Jingwei Xu ,  Vijayalakshmi Devarajan

IPC: H02J50/10 ,  H02J7/02

CPC classification number: H02J50/10 ,  H02J7/025 ,  H02J50/12

Abstract: Methods, apparatus, systems and articles of manufacture to efficiently transfer power wirelessly are disclosed. An example apparatus includes a feedback loop to when a second current value is greater than a first current value, change a direction value, the second current value being obtained after the first current value; when the second current value is less than the first current value, maintain the direction value; and a summer to when the direction value corresponds to a first direction value, increase a reference signal by a step size; and when the direction value corresponds to a second direction value different than the first direction value, decrease the reference signal by the step size.

公开(公告)号：US09785159B2

公开(公告)日：2017-10-10

申请号：US14247617

申请日：2014-04-08

Applicant: Texas Instruments Incorporated

Inventor： Gianpaolo Lisi ,  Gerard Socci ,  Ali Djabbari ,  Rajaram Subramonian ,  Kosha Mahmodieh

IPC: H01F27/42 ,  H01F37/00 ,  H01F38/00 ,  G05F1/12 ,  H02M7/538

CPC classification number: G05F1/12 ,  H02M7/53803 ,  Y02B70/1441

Abstract: A resonant power transfer system includes resonant circuitry (26) including an inductor coil (59) and a resonant capacitor (51) coupled to a first terminal (27) of the inductor coil, wherein the inductor coil and the resonant capacitor resonate to produce an excitation signal (IS) and a state variable signal (VCS1). Sub-sampling circuitry (30) samples first and second points of the state variable signal at a rate which is substantially less than the RF frequency of the state variable signal. Information recovery circuitry (32) produces a state variable parameter signal representing a parameter (A) of the state variable signal from information in the first and second sampled points. Control circuitry (38) produces a first control signal in response to the state variable parameter signal. Detection and optimization circuitry (41) produces a second control signal in response to the state variable parameter signal. Voltage regulation circuitry (45) produces a regulated supply voltage in response to the first control signal. Switching inverter circuitry produces the excitation signal in response to the regulated supply voltage and the second control signal.

公开(公告)号：US10153661B2

公开(公告)日：2018-12-11

申请号：US15362563

申请日：2016-11-28

Applicant: Texas Instruments Incorporated

Inventor： Kosha Mahmodieh ,  Gianpaolo Lisi ,  Ali Djabbari ,  Jingwei Xu ,  Vijayalakshmi Devarajan

IPC: H02J50/10 ,  H02J7/02

Abstract: Methods, apparatus, systems and articles of manufacture to efficiently transfer power wirelessly are disclosed. An example apparatus includes a feedback loop to when a second current value is greater than a first current value, change a direction value, the second current value being obtained after the first current value; when the second current value is less than the first current value, maintain the direction value; and a summer to when the direction value corresponds to a first direction value, increase a reference signal by a step size; and when the direction value corresponds to a second direction value different than the first direction value, decrease the reference signal by the step size.

公开(公告)号：US20190109493A1

公开(公告)日：2019-04-11

申请号：US16214733

申请日：2018-12-10

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Kosha Mahmodieh ,  Gianpaolo Lisi ,  Ali Djabbari ,  Jingwei Xu ,  Vijayalakshmi Devarajan

IPC: H02J50/10 ,  H02J7/02 ,  H02J50/12

Abstract: An example apparatus includes a feedback loop to: change a direction value when a second current value is greater than a first current value, the second current value being obtained after the first current value; and maintain the direction value when the second current value is less than the first current value. When the direction value corresponds to a first direction value, a summer increases a reference signal by a step size. When the direction value corresponds to a second direction value different than the first direction value, the summer decrease the reference signal by the step size.

公开(公告)号：US09491838B2

公开(公告)日：2016-11-08

申请号：US13690235

申请日：2012-11-30

Applicant: Texas Instruments Incorporated

Inventor： Giovanni Frattini ,  Evan Reutzel ,  Jeffrey Morroni ,  Ali Djabbari ,  Gerard Socci ,  Gianpaolo Lisi ,  Raj Subramoniam ,  Kosha Mahmodieh

IPC: G09G3/00 ,  G09G5/00 ,  H05B37/03 ,  H05B37/02 ,  H05B33/08

CPC classification number: H05B37/036 ,  H05B33/083 ,  H05B33/0842 ,  H05B37/02

Abstract: Circuits for controlling a plurality of LEDs connected in series are disclosed herein. The circuit includes a plurality of switches, wherein each switch is connectable between the anode and cathode of one of the plurality of LEDs. Each of the switches has a first state wherein current does not pass through the switch and a second state wherein current passes through the switch. The circuit also includes an input for receiving data to program the switches and a data line for transferring data between a circuit controlling second LEDs that are connected in parallel with the first LEDs and the circuit. In addition, the circuit includes a data output for transferring data to other circuits controlling third LEDs that are connected in series with the first LEDs.

Abstract translation: 本文公开了用于控制串联连接的多个LED的电路。 电路包括多个开关，其中每个开关可在多个LED之一的阳极和阴极之间连接。 每个开关具有其中电流不通过开关的第一状态和电流通过开关的第二状态。 电路还包括用于接收数据以编程开关的输入端和用于在控制与第一LED和电路并联连接的第二LED的电路之间传送数据的数据线。 此外，电路包括用于将数据传送到控制与第一LED串联连接的第三LED的其他电路的数据输出。

公开(公告)号：US20130193852A1

公开(公告)日：2013-08-01

申请号：US13690235

申请日：2012-11-30

Applicant: Texas Instruments Incorporated

Inventor： Giovanni Frattini ,  Evan Reutzel ,  Jeffrey Morroni ,  Ali Djabbari ,  Gerard Socci ,  Gianpaolo Lisi ,  Raj Subramoniam ,  Kosha Mahmodieh

IPC: H05B37/03 ,  H05B37/02

CPC classification number: H05B37/036 ,  H05B33/083 ,  H05B33/0842 ,  H05B37/02

Abstract: Circuits for controlling a plurality of LEDs connected in series are disclosed herein. The circuit includes a plurality of switches, wherein each switch is connectable between the anode and cathode of one of the plurality of LEDs. Each of the switches has a first state wherein current does not pass through the switch and a second state wherein current passes through the switch. The circuit also includes an input for receiving data to program the switches and a data line for transferring data between a circuit controlling second LEDs that are connected in parallel with the first LEDs and the circuit. In addition, the circuit includes a data output for transferring data to other circuits controlling third LEDs that are connected in series with the first LEDs.

Abstract translation: 本文公开了用于控制串联连接的多个LED的电路。 电路包括多个开关，其中每个开关可在多个LED之一的阳极和阴极之间连接。 每个开关具有其中电流不通过开关的第一状态和电流通过开关的第二状态。 电路还包括用于接收数据以编程开关的输入端和用于在控制与第一LED和电路并联连接的第二LED的电路之间传送数据的数据线。 此外，电路包括用于将数据传送到控制与第一LED串联连接的第三LED的其他电路的数据输出。