Synchronous bootstrap half bridge rectifier

    公开(公告)号:US12062995B2

    公开(公告)日:2024-08-13

    申请号:US17873395

    申请日:2022-07-26

    CPC classification number: H02M7/219 H02M1/08

    Abstract: Described embodiments include a rectifier circuit comprising a first resistor with first and second resistor terminals, and a second resistor with third and fourth resistor terminals. The first and third resistor terminals are coupled to an auxiliary power terminal. A current source is coupled between the second resistor terminal and a ground terminal. An amplifier has a first amplifier input coupled to the second resistor terminal, and a second amplifier input coupled to the fourth resistor terminal. A first transistor is coupled between the fourth resistor terminal and a damping terminal, and has a first control terminal coupled to the first amplifier output. A gate drive circuit has an input coupled to the damping terminal. A second transistor is coupled between the damping terminal and a bootstrap supply terminal, and has a second control terminal coupled to an output of the gate drive circuit.

    REFERENCE VOLTAGE GENERATION CIRCUITS AND RELATED METHODS

    公开(公告)号:US20210376718A1

    公开(公告)日:2021-12-02

    申请号:US16890537

    申请日:2020-06-02

    Abstract: Reference voltage generation circuits and related methods are disclosed. An example reference voltage generation circuit includes a voltage generating circuit including an enhancement mode (E-mode) gallium nitride (GaN) transistor, the voltage generating circuit to, in response to a first clock signal having a first phase, generate a first voltage associated with the E-mode GaN transistor, and, in response to a second clock signal having a second phase different from the first phase, generate a second voltage associated with the E-mode GaN transistor, and a switching capacitor circuit coupled to the voltage generating circuit, the switching capacitor circuit to generate a reference voltage based on a difference between the first voltage and the second voltage.

    SYNCHRONOUS BOOTSTRAP HALF BRIDGE RECTIFIER
    8.
    发明公开

    公开(公告)号:US20240364232A1

    公开(公告)日:2024-10-31

    申请号:US18768245

    申请日:2024-07-10

    CPC classification number: H02M7/219 H02M1/08

    Abstract: Described embodiments include a rectifier circuit comprising a first resistor with first and second resistor terminals, and a second resistor with third and fourth resistor terminals. The first and third resistor terminals are coupled to an auxiliary power terminal. A current source is coupled between the second resistor terminal and a ground terminal. An amplifier has a first amplifier input coupled to the second resistor terminal, and a second amplifier input coupled to the fourth resistor terminal. A first transistor is coupled between the fourth resistor terminal and a damping terminal, and has a first control terminal coupled to the first amplifier output. A gate drive circuit has an input coupled to the damping terminal. A second transistor is coupled between the damping terminal and a bootstrap supply terminal, and has a second control terminal coupled to an output of the gate drive circuit.

    CIRCUIT SUPPORT STRUCTURE WITH INTEGRATED ISOLATION CIRCUITRY

    公开(公告)号:US20230344467A1

    公开(公告)日:2023-10-26

    申请号:US18347201

    申请日:2023-07-05

    CPC classification number: H04B5/005 H04B5/0093 H05K3/4673 H05K1/162 H05K1/165

    Abstract: A circuit support structure includes a first metal layer, a second metal layer, isolation material containing the first and second metal layers, an isolation circuit, a first plurality of contact pads, and a second plurality of contact pads. The isolation circuit includes a first circuit element in the first metal layer and a second circuit element in the second metal layer and electrically isolated from the first circuit element by the isolation material. The first plurality of contact pads is adapted to be coupled to a first integrated circuit on the circuit support structure and includes a first contact pad electrically coupled to the first circuit element. The second plurality of contact pads is adapted to be coupled to a second integrated circuit on the circuit support structure and includes a second contact pad electrically coupled to the second circuit element.

    Unidirectional ring mitigation in a voltage converter

    公开(公告)号:US11081955B2

    公开(公告)日:2021-08-03

    申请号:US15716647

    申请日:2017-09-27

    Abstract: A system includes a high side transistor switch coupled to a first voltage node and a low side transistor switch coupled to the high side transistor switch at a switch node. The system further includes a unidirectional decoupling capacitor circuit including a capacitive component. The unidirectional decoupling capacitor circuit is coupled between the first voltage node and a common potential. Responsive to a voltage on the first voltage node being more than a threshold greater than an input voltage to the first voltage node, the unidirectional decoupling capacitor circuit is configured to sink current from the first voltage node to the capacitive component. The capacitive component can therefore be charged, with the charge used to subsequently power a load.

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