Power bypass apparatus with current-sharing function and method of controlling the same

    公开(公告)号:US10734835B2

    公开(公告)日:2020-08-04

    申请号:US16052914

    申请日:2018-08-02

    Abstract: A power bypass apparatus with a current-sharing function includes at least two bypass switch assemblies and a control unit. Each bypass switch assembly includes a controllable switch, a cooling unit, and a temperature detection unit. Each the temperature detection unit, correspondingly disposed to a heat-dissipating unit, detects a temperature value of the controllable switch to produce a temperature detection signal. The control unit receives the temperature detection signals and outputs at least two switch control signals to control at least one of the controllable switches or outputs at least two cooling unit control signals to control at least one of the cooling units, thus making currents flowing through the controllable switches identical. Accordingly, it is to increase overall efficiency of a power system and implement current-sharing function of the power system providing high power.

    Isolated converter with high boost ratio

    公开(公告)号:US11088629B2

    公开(公告)日:2021-08-10

    申请号:US16867242

    申请日:2020-05-05

    Abstract: An isolated converter with high boost ration includes a transformer, a first bridge arm, a second bridge arm, and a boost circuit. The transformer includes a secondary side having a secondary side first node and a secondary side second node. The first bridge arm includes a first diode and a second diode. The second bridge arm includes a third diode and a fourth diode. The boost circuit includes at least one fifth diode coupled between the first bridge arm and the secondary side second node, at least one sixth diode coupled between the second bridge arm and the secondary side first node, and at least two capacitors coupled to the secondary side first node and the secondary side second node.

    Isolated boost converter
    4.
    发明授权

    公开(公告)号:US11081968B2

    公开(公告)日:2021-08-03

    申请号:US16698764

    申请日:2019-11-27

    Abstract: An isolated boost converter includes a transformer, a first bridge arm, a second bridge arm, and a boost circuit. The transformer includes a secondary side having a secondary side first contact and a secondary side second contact. The boost circuit includes two diodes—anodes of the two diodes are mutually coupled to a first contact and cathodes of the two diodes are coupled to a first bridge arm upper contact and a second bridge arm upper contact, two diodes—cathodes of the two diodes are mutually coupled to a second contact and anodes of the two diodes are coupled to a first bridge arm lower contact and a second bridge arm lower contact, the second contact is coupled to the first contact, and at least two capacitors are coupled to the secondary side first contact and the secondary side second contact.

    POWER SYSTEM AND CIRCULATING CURRENT SUPPRESSION METHOD THEREOF

    公开(公告)号:US20250007389A1

    公开(公告)日:2025-01-02

    申请号:US18243626

    申请日:2023-09-07

    Abstract: A circulating current suppression method of a power system having a plurality of power modules is provided. Each power module includes a high-voltage bus, a low-voltage bus and a balance circuit having a neutral voltage. The circulating current suppression method includes: in each balance circuit, disposing a first capacitor electrically coupled between the high-voltage bus and the neutral voltage, and disposing a second capacitor electrically coupled between the neutral voltage and the low-voltage bus; acquiring a current effective value of an input of each power module; if detecting that the current effective value of at least one power module doesn't remain at a current reference value, determining that a circulating current occurs in the at least one power module; and operating the balance circuit of the at least one power module to charge the first capacitor or the second capacitor to regulate the neutral voltage for suppressing the circulating current.

    Integrated electronic device
    7.
    发明授权

    公开(公告)号:US10674640B1

    公开(公告)日:2020-06-02

    申请号:US16264621

    申请日:2019-01-31

    Abstract: An electronic device with heat sink is provided. The heat sink includes a base and fins. One side of the base has a first placement plane and a second placement plane. The electronic device includes a circuit board, a power module and transistors. The power module includes a power body and soldering legs, and the power body is attached to the first placement plane. The transistor has a transistor body and pins, and the transistor body is attached to the second placement plane. The circuit board is disposed at one side of the base formed with the first placement plane, and soldering legs of the power module and pins of the transistor are inserted on the circuit board. Thereby the heat sinks and the space which the circuit board occupied will be reduced for increasing the power density of the heat sink.

    POWER CONVERTER AND MULTI-LEVEL POWER CONVERSION SYSTEM

    公开(公告)号:US20240364203A1

    公开(公告)日:2024-10-31

    申请号:US18232721

    申请日:2023-08-10

    CPC classification number: H02M1/0029 H02M1/007 H02M7/4837

    Abstract: A power converter is provided. The power converter includes first to fourth switches electrically connected in series, a flying capacitor and a controller. Positive and negative terminals of the flying capacitor are electrically connected to the second and third switches respectively. The controller operates the first and fourth switches to perform a first complementary switching with a first dead time, and operates the second and third switches to perform a second complementary switching with a second dead time. The controller determines to regulate the first or second dead time by detecting a capacitor voltage of the flying capacitor, such that the capacitor voltage of the flying capacitor is maintained within a balance voltage range.

    Isolated converter with high boost ratio

    公开(公告)号:US11652420B2

    公开(公告)日:2023-05-16

    申请号:US17365608

    申请日:2021-07-01

    CPC classification number: H02M3/33592 H02M3/33553 H02M3/33584

    Abstract: An isolated converter with high boost ration includes a transformer, a first bridge arm, a second bridge arm, and a boost circuit. The transformer includes a secondary side having a secondary side first node and a secondary side second node. The first bridge arm includes a first diode and a second diode. The second bridge arm includes a third diode and a fourth diode. The boost circuit includes at least one fifth diode coupled between the first bridge arm and the secondary side second node, at least one sixth diode coupled between the second bridge arm and the secondary side first node, and at least two capacitors coupled to the secondary side first node and the secondary side second node.

    Bidirectional power factor correction module

    公开(公告)号:US10910943B1

    公开(公告)日:2021-02-02

    申请号:US16675474

    申请日:2019-11-06

    Abstract: A bidirectional power factor correction (PFC) module is coupled to an AC power source, an energy storage unit, and a DC bus. The bidirectional PFC module includes a bridge arm assembly and a control unit. The bridge arm assembly includes a first bridge arm, a first inductor, a second inductor, and a second bridge arm. The control unit provides a plurality of control signals to control the first bridge arm and the second bridge arm to make the bidirectional PFC module operate in an AC power supply mode, a DC power supply mode, or a power feed mode.

Patent Agency Ranking