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：US11646594B2

公开(公告)日：2023-05-09

申请号：US17156909

申请日：2021-01-25

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Mustapha El Markhi ,  Erhan Ozalevli ,  Tuli Dake ,  Rohit Bhan

IPC: H02J7/00 ,  H02J7/14 ,  H03M1/66

CPC classification number: H02J7/00714 ,  H03M1/66

Abstract: An example device comprises a digital-to-analog converter (DAC) comprising first and second transistors coupled to a first amplifier, the second transistor coupled to a first output of the DAC and to an output of the first amplifier, and third and fourth transistors coupled to the first amplifier and to a second output of the DAC, the third and fourth transistors switchably coupled to a voltage supply and to the first transistor. The device also comprises a first node coupled to the first output of the DAC and to a resistor. The device further includes a second node coupled to the second output of the DAC, and a second amplifier coupled to the second node and to the first transistor and switchably coupled to the third and fourth transistors. The device also comprises a comparator coupled to the first node.

公开(公告)号：US20220115889A1

公开(公告)日：2022-04-14

申请号：US17558100

申请日：2021-12-21

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Mustapha El Markhi ,  Alejandro Vera ,  Rohit Bhan

IPC: H02J7/00 ,  G01R31/36 ,  H02J7/02

Abstract: A battery charger includes a battery power regulator configured to set a charge signal provided to a battery based on a charge control signal and charge enable signal. The battery charger also includes a controller configured to provide the charge control signal to the battery power regulator. The controller is also configured to temporarily de-assert the charge enable signal for a predetermined amount of time in response to determining that a change is needed in the charge control signal. The controller is further configured to re-assert the charge enable signal after the predetermined amount of time.

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：US11119557B2

公开(公告)日：2021-09-14

申请号：US16260693

申请日：2019-01-29

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Mustapha El Markhi ,  Rohit Bhan ,  Thomas Vermeer ,  Norelis Medina

IPC: G06F1/32 ,  G06F1/24 ,  G06F1/3206

Abstract: A system includes an adapter port and a control circuit coupled to the adapter port. The system also includes host hardware coupled to the control circuit. The control circuit is configured to reset the host hardware in response to detecting an adapter removal pattern at the adapter port.

公开(公告)号：US11114876B2

公开(公告)日：2021-09-07

申请号：US16559860

申请日：2019-09-04

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Gautham Ramachandran ,  Mustapha El Markhi

IPC: H02J7/00 ,  H01M10/44

Abstract: A battery charger circuit associated with a portable electronic device is disclosed. The battery charger circuit comprises a charging circuit configured to charge a battery and a discharging circuit configured to discharge the battery. The battery charger circuit further comprises a battery fault detection circuit configured to detect a battery fault condition, based on monitoring one or more battery parameters. In some aspects, the battery charger circuit further comprises a battery charge control circuit configured to selectively activate the discharging circuit, in order to discharge the battery, and deactivate the charging circuit, in order to suspend charging the battery during the discharge of the battery, when the battery fault condition is detected.

公开(公告)号：US11101807B2

公开(公告)日：2021-08-24

申请号：US16216162

申请日：2018-12-11

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Erhan Ozalevli ,  Mustapha El Markhi ,  Tuli Dake

IPC: H03L7/18 ,  H03L7/099 ,  H03L7/085 ,  H03L7/113 ,  H03K3/0231

Abstract: One example includes a phase-locked loop (PLL) circuit. The circuit includes a frequency divider and phase detector configured to generate a plurality of non-overlapping switching signals based on an input signal and a PLL output signal. The circuit also includes a linear frequency-to-current (F2I) converter configured to generate a control current having an amplitude that is based on the plurality of non-overlapping switching signals. The circuit further includes a linear current-controlled oscillator configured to generate the PLL output signal to have a frequency and phase to be approximately equal to the input signal based on the amplitude of the control current.