Waterproof and dustproof motor
    3.
    发明授权

    公开(公告)号:US09755473B2

    公开(公告)日:2017-09-05

    申请号:US14278880

    申请日:2014-05-15

    CPC classification number: H02K5/10 H02K1/148 H02K5/225 H02K11/33

    Abstract: A motor structure is provided. The motor structure has: a motor; a circuit board including a driver circuit for controlling the motor; an upper shell; a base; a lower shell; an outlet, wherein wires of the circuit board is connected to the exterior of the motor structure through the outlet; a first tight chamber, formed by closing the upper shell and the base together, wherein the motor is disposed in the first tight chamber; and a second tight chamber, formed by closing the base and the lower shell together, wherein the circuit board is disposed in the second tight chamber.

    Voltage stabilizer and power conversion device using same

    公开(公告)号:US11735909B2

    公开(公告)日:2023-08-22

    申请号:US17726147

    申请日:2022-04-21

    CPC classification number: H03K17/08122 H02M3/158 H03K17/60 H03K17/687

    Abstract: A voltage stabilizer is provided for stabilizing a gate-source voltage of a switching element, wherein a source of the switching element receives a first driving voltage. The voltage stabilizer includes a bipolar junction transistor, a first resistor and a second resistor. A base of the bipolar junction transistor receives a second driving voltage, a collector of the bipolar junction transistor is electrically connected to a gate of the switching element, a first terminal of the first resistor is electrically connected to the collector and the gate, a second terminal of the first resistor is electrically connected to the source of the switching element and receives the first driving voltage, a first terminal of the second resistor is electrically connected to an emitter of the bipolar junction transistor, and a second terminal of the second resistor receives a third driving voltage The bipolar junction transistor is operated in an active region.

    VOLTAGE STABILIZER AND POWER CONVERSION DEVICE USING SAME

    公开(公告)号:US20230208132A1

    公开(公告)日:2023-06-29

    申请号:US17726147

    申请日:2022-04-21

    CPC classification number: H03K17/08122 H02M3/158 H03K17/687 H03K17/60

    Abstract: A voltage stabilizer is provided for stabilizing a gate-source voltage of a switching element, wherein a source of the switching element receives a first driving voltage. The voltage stabilizer includes a bipolar junction transistor, a first resistor and a second resistor. A base of the bipolar junction transistor receives a second driving voltage, a collector of the bipolar junction transistor is electrically connected to a gate of the switching element, a first terminal of the first resistor is electrically connected to the collector and the gate, a second terminal of the first resistor is electrically connected to the source of the switching element and receives the first driving voltage, a first terminal of the second resistor is electrically connected to an emitter of the bipolar junction transistor, and a second terminal of the second resistor receives a third driving voltage The bipolar junction transistor is operated in an active region.

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