BATTERY CHARGING AND MEASUREMENT CIRCUIT

    公开(公告)号:US20210143833A1

    公开(公告)日:2021-05-13

    申请号:US17156909

    申请日:2021-01-25

    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.

    CHARGING CURRENT LIMIT CIRCUIT
    2.
    发明申请

    公开(公告)号:US20200313444A1

    公开(公告)日:2020-10-01

    申请号:US16370151

    申请日:2019-03-29

    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.

    SHOOT-THROUGH CURRENT LIMITING CIRCUIT
    3.
    发明公开

    公开(公告)号:US20230275442A1

    公开(公告)日:2023-08-31

    申请号:US18313658

    申请日:2023-05-08

    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.

    BATTERY CHARGING AND MEASUREMENT CIRCUIT
    5.
    发明申请

    公开(公告)号:US20200007145A1

    公开(公告)日:2020-01-02

    申请号:US16191225

    申请日:2018-11-14

    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.

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