公开(公告)号：US11283361B2

公开(公告)日：2022-03-22

申请号：US16554095

申请日：2019-08-28

Applicant: Texas Instruments Incorporated

Inventor： Mustapha El Markhi ,  Erhan Ozalevli ,  Tuli Dake ,  Dingkun Du ,  Gianpaolo Lisi ,  Jingwei Xu

IPC: H02M3/335 ,  H02J50/12 ,  H02M1/08

Abstract: A wireless power transfer system using a resonant rectifier circuit with capacitor sensing. A wireless power transfer system includes a power receiver resonant circuit and a synchronous rectifier. The power receiver resonant circuit includes an inductor and a capacitor connected in series with the inductor. The synchronous rectifier is configured to identify zero crossings of alternating current flowing through the inductor based on voltage across the capacitor, and control synchronous rectification of the alternating current based on timing of the zero crossings.

公开(公告)号：US20160043562A1

公开(公告)日：2016-02-11

申请号：US14657685

申请日：2015-03-13

Applicant: Texas Instruments Incorporated

Inventor： Gianpaolo Lisi ,  Nachiket V. Desai ,  Sakshi Arora ,  Rajaram Subramonian ,  Gerard Socci ,  Dingkun Du

IPC: H02J5/00 ,  H02M7/217 ,  H02M7/06

CPC classification number: H02J5/005 ,  H02J7/025 ,  H02J50/12 ,  H02J50/40 ,  H02J50/60 ,  H02J50/80

Abstract: A wireless power transfer system includes a wireless power receiver having a rectifier. The rectifier includes switches. The wireless power receiver is operable to control the switches for ensuring a complex impedance at the input of the rectifier.

Abstract translation: 无线电力传输系统包括具有整流器的无线电力接收器。 整流器包括开关。 无线电力接收器可操作以控制开关，以确保整流器输入端的复阻抗。

公开(公告)号：US09831684B2

公开(公告)日：2017-11-28

申请号：US14657685

申请日：2015-03-13

Applicant: Texas Instruments Incorporated

Inventor： Gianpaolo Lisi ,  Nachiket V. Desai ,  Sakshi Arora ,  Rajaram Subramonian ,  Gerard Socci ,  Dingkun Du

IPC: H02J5/00 ,  H02J50/12

CPC classification number: H02J5/005 ,  H02J7/025 ,  H02J50/12 ,  H02J50/40 ,  H02J50/60 ,  H02J50/80

Abstract: A wireless power transfer system includes a wireless power receiver having a rectifier. The rectifier includes switches. The wireless power receiver is operable to control the switches for ensuring a complex impedance at the input of the rectifier.

公开(公告)号：US20190386575A1

公开(公告)日：2019-12-19

申请号：US16554095

申请日：2019-08-28

Applicant: Texas Instruments Incorporated

Inventor： Mustapha El Markhi ,  Erhan Ozalevli ,  Tuli Dake ,  Dingkun Du ,  Gianpaolo Lisi ,  Jingwei Xu

IPC: H02M3/335

Abstract: A wireless power transfer system using a resonant rectifier circuit with capacitor sensing. A wireless power transfer system includes a power receiver resonant circuit and a synchronous rectifier. The power receiver resonant circuit includes an inductor and a capacitor connected in series with the inductor. The synchronous rectifier is configured to identify zero crossings of alternating current flowing through the inductor based on voltage across the capacitor, and control synchronous rectification of the alternating current based on timing of the zero crossings.

公开(公告)号：US10439502B2

公开(公告)日：2019-10-08

申请号：US15279094

申请日：2016-09-28

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Mustapha El Markhi ,  Erhan Ozalevli ,  Tuli Dake ,  Dingkun Du ,  Gianpaolo Lisi ,  Jingwei Xu

IPC: H02J50/12 ,  H02J7/02 ,  H02M3/335 ,  H02M1/08

Abstract: A wireless power transfer system using a resonant rectifier circuit with capacitor sensing. A wireless power transfer system includes a power receiver resonant circuit and a synchronous rectifier. The power receiver resonant circuit includes an inductor and a capacitor connected in series with the inductor. The synchronous rectifier is configured to identify zero crossings of alternating current flowing through the inductor based on voltage across the capacitor, and control synchronous rectification of the alternating current based on timing of the zero crossings.

公开(公告)号：US09680375B2

公开(公告)日：2017-06-13

申请号：US14631388

申请日：2015-02-25

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Theodore Ernest Yu ,  Ali Motamedi ,  Dingkun Du ,  Sombuddha Chakraborty ,  Patrick Teterud ,  Keith Thomas Sanders, Jr.

IPC: H02M3/156 ,  H02M1/44 ,  H02M1/00

CPC classification number: H02M3/156 ,  H02M1/44 ,  H02M2001/0012

Abstract: In described examples, a switching mode power supply includes an output filter, a driver, a pulse width modulator, and pulse adaptation circuitry. The output filter is configured to provide output of the switching mode power supply. The driver is coupled to the output filter and is configured to switch current to the output filter. The pulse width modulator is configured to generate pulses that control switching of current by the driver. The pulse width modulator includes spread spectrum logic configured to randomize timing of the pulses generated by the pulse width modulator. The pulse adaptation circuitry is configured to identify an instantaneous excursion of the output of the switching mode power supply beyond a predetermined threshold, and to modify the randomized timing of the pulses produced by the pulse width modulator based on the identified instantaneous excursion.