POWER SUPPLY APPARATUS
    1.
    发明申请
    POWER SUPPLY APPARATUS 有权
    电源设备

    公开(公告)号:US20070164718A1

    公开(公告)日:2007-07-19

    申请号:US11624758

    申请日:2007-01-19

    IPC分类号: G05F1/00

    摘要: In a power supply apparatus, in a standby mode, control signals for controlling a first MOSFET of a power supply apparatus to be turned on and a second MOSFET to be turned off are supplied to the gates of the first and second MOSFETs from a control circuit, respectively. The emitter of a PNP transistor is connected to the gate of the second MOSFET through a diode of a switch circuit and the collector is connected to the ground. A power supply operation control signal is input to the base of the PNP transistor. When a power supply operation control signal in a Low state is input to the base in a standby mode, the emitter and the collector are connected to each other. Accordingly, the gate of the second MOSFET has a potential substantially the same as a ground potential and the second MOSFET is turned off irrespective of the control signal.

    摘要翻译: 在供电装置中,在待机模式中,控制要供电的电源装置的第一MOSFET的控制信号和要关断的第二MOSFET被控制电路提供给第一和第二MOSFET的栅极 , 分别。 PNP晶体管的发射极通过开关电路的二极管连接到第二MOSFET的栅极,并且集电极连接到地。 电源操作控制信号被输入到PNP晶体管的基极。 当处于待机模式的低电源电源运行控制信号输入到基极时,发射极和集电极相互连接。 因此,第二MOSFET的栅极具有与接地电位基本相同的电位,并且与控制信号无关地,第二MOSFET截止。

    Power supply apparatus
    2.
    发明授权
    Power supply apparatus 有权
    电源装置

    公开(公告)号:US07307407B2

    公开(公告)日:2007-12-11

    申请号:US11624758

    申请日:2007-01-19

    IPC分类号: H02M3/158

    摘要: In a power supply apparatus, in a standby mode, control signals for controlling a first MOSFET of a power supply apparatus to be turned on and a second MOSFET to be turned off are supplied to the gates of the first and second MOSFETs from a control circuit, respectively. The emitter of a PNP transistor is connected to the gate of the second MOSFET through a diode of a switch circuit and the collector is connected to the ground. A power supply operation control signal is input to the base of the PNP transistor. When a power supply operation control signal in a Low state is input to the base in a standby mode, the emitter and the collector are connected to each other. Accordingly, the gate of the second MOSFET has a potential substantially the same as a ground potential and the second MOSFET is turned off irrespective of the control signal.

    摘要翻译: 在供电装置中,在待机模式下,控制要供电的电源装置的第一MOSFET的控制信号和要关断的第二MOSFET被控制电路提供给第一和第二MOSFET的栅极 , 分别。 PNP晶体管的发射极通过开关电路的二极管连接到第二MOSFET的栅极,并且集电极连接到地。 电源操作控制信号被输入到PNP晶体管的基极。 当处于待机模式的低电源电源运行控制信号输入到基极时,发射极和集电极相互连接。 因此,第二MOSFET的栅极具有与接地电位基本相同的电位,并且与控制信号无关地,第二MOSFET截止。

    DC-DC converter and electronic device using the same
    8.
    发明授权
    DC-DC converter and electronic device using the same 有权
    DC-DC转换器和使用其的电子设备

    公开(公告)号:US06710582B2

    公开(公告)日:2004-03-23

    申请号:US10310040

    申请日:2002-12-05

    申请人: Soichi Watanabe

    发明人: Soichi Watanabe

    IPC分类号: H02M3137

    CPC分类号: H02M3/158

    摘要: A DC-DC converter includes first and second MOSFETs. The source of the first MOSFET is connected to the node between a rectifier diode and a choke coil through a resonance coil. A series circuit including the resonance coil and the rectifier diode is connected in parallel to a series circuit including a capacitor and the second MOSFET. A diode and another capacitor are connected in parallel across the drain and source of the second MOSFET. Another diode is connected in parallel to a series circuit including the first MOSFET and the resonance coil. A control circuit is provided between an output terminal and the gates of the first and second MOSFETs so as to perform PWM control so that the first and second MOSFETs are alternately turned ON, with a period when both MOSFETs are OFF being provided between the ON periods.

    摘要翻译: DC-DC转换器包括第一和第二MOSFET。 第一个MOSFET的源极通过谐振线圈连接到整流二极管和扼流线圈之间的节点。 包括谐振线圈和整流二极管的串联电路与包括电容器和第二MOSFET的串联电路并联连接。 二极管和另一个电容并联连接在第二个MOSFET的漏极和源极之间。 另一个二极管并联连接到包括第一MOSFET和谐振线圈的串联电路。 控制电路设置在输出端和第一和第二MOSFET的栅极之间,以便执行PWM控制,使得第一和第二MOSFET交替接通,同时在两个MOSFET断开之间提供ON周期 。