公开(公告)号：US10938403B2

公开(公告)日：2021-03-02

申请号：US16191225

申请日：2018-11-14

Applicant: TEXAS INSTRUMENTS INCORPORATED

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

IPC: H02J7/00 ,  H02J7/14 ,  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：US10469073B1

公开(公告)日：2019-11-05

申请号：US16047589

申请日：2018-07-27

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Erhan Ozalevli ,  Mustapha El Markhi ,  Rohit Bhan

IPC: H03K17/16 ,  H03K17/082 ,  H02M3/335

Abstract: Aspects of the present disclosure provide for a circuit, comprising a first node configured to couple to a first current source and a second current source. The circuit also comprises a first filter configured to couple between a voltage supply and the first node, the first filter being a first dynamically controllable current filter. The circuit further comprises a current mirror coupled between the first node and a second node configured to couple to a third current source and a fourth current source. The circuit additionally comprises a second filter configured to couple between the second node and a ground node, the second filter being a second dynamically controllable current filter.

公开(公告)号：US20190131863A1

公开(公告)日：2019-05-02

申请号：US15801295

申请日：2017-11-01

Applicant: Texas Instruments Incorporated

Inventor： Mustapha El Markhi ,  Erhan Ozalevli ,  Tuli Dake

IPC: H02M1/08 ,  H02M3/156 ,  H03K17/14

Abstract: In a described example, an apparatus includes: transistor having a first terminal coupled to an input terminal, a second terminal coupled to an output terminal, and a gate terminal; a temperature sensor configured to sense a junction temperature of the transistor and generate a temperature signal based on the sensed junction temperature; and a gate driver circuit configured to generate a gate signal based on the temperature signal and to output the gate signal to the gate terminal of the transistor.

公开(公告)号：US11996714B2

公开(公告)日：2024-05-28

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

CPC classification number: H02J7/00304 ,  G01R31/36 ,  H02J7/00 ,  H02J7/00712 ,  H02J7/00714 ,  H02J7/007192 ,  H02J7/02 ,  H02J7/00034 ,  H02J2207/20

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：US20200266647A1

公开(公告)日：2020-08-20

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：US10200048B2

公开(公告)日：2019-02-05

申请号：US15346248

申请日：2016-11-08

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Erhan Ozalevli ,  Mustapha El Markhi ,  Tuli Dake

IPC: H03L7/06 ,  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.

公开(公告)号：US11695283B2

公开(公告)日：2023-07-04

申请号：US16277548

申请日：2019-02-15

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Mustapha El Markhi ,  Alejandro Vera ,  Tonmoy Roy ,  Rohit Bhan

IPC: H02J7/00

CPC classification number: H02J7/0031 ,  H02J7/00 ,  H02J7/00302 ,  H02J7/00304

Abstract: Aspects of the disclosure provide for a circuit. In at least some examples, the circuit includes a logic circuit, a first comparator, a second comparator, and an AND logic circuit. The logic circuit has an output and the first comparator has a first input coupled to an input voltage (VIN) pin, a second input configured to receive a Vin under voltage lockout (VINUVLO) threshold value, and an output. The second comparator has a first input coupled to a power middle (PMID) pin, a second input coupled to a battery pin, and an output and the AND logic circuit has a first input coupled to the output of the logic circuit, a second input coupled to the output of the first comparator, a third input coupled to the output of the second comparator, and an output coupled to an input of a field-effect transistor (FET) control circuit.

公开(公告)号：US11239680B2

公开(公告)日：2022-02-01

申请号：US16354962

申请日：2019-03-15

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Mustapha El Markhi ,  Alejandro Vera ,  Rohit Bhan

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

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：US11196281B2

公开(公告)日：2021-12-07

申请号：US16370151

申请日：2019-03-29

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Mustapha El Markhi ,  Rohit Bhan ,  Thomas Vermeer ,  Daniel Mavencamp

IPC: H02J7/00 ,  G01R19/165 ,  H03M1/00

Abstract: Aspects of the present disclosure provide for circuit. In at least some examples, the circuit includes a controller, a current source, a switch, and a digital-to-analog converter (DAC). The controller includes an analog-to-digital converter (ADC) having an input and an output, a first register, and a second register coupled to the output of the ADC. The switch is coupled between an output of the current source and a first node and has a control terminal coupled to the controller. The first node is coupled to the input of the ADC and is configured to couple to a resistor. The DAC has an input coupled to the controller and an output configured to couple to a battery.

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.