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    • 5. 发明申请
    • DC-DC CONVERTER
    • DC-DC转换器
    • US20150130440A1
    • 2015-05-14
    • US14539274
    • 2014-11-12
    • Akihiro KinoshitaShinji Horio
    • Akihiro KinoshitaShinji Horio
    • H02M1/32H02M3/158
    • H02M1/32H02M3/158H02M3/1582H02M2001/325H02M2001/327
    • A DC-DC converter includes a voltage conversion circuit boosting a voltage of a DC power supply and supplying the voltage to a load, a bypass circuit provided in parallel to the voltage conversion circuit, a drive circuit turning on and off a switching element of the bypass circuit, and a controller outputting a control signal for controlling the voltage conversion circuit and the drive circuit. A diode is connected in parallel to the switching element so as to be oriented toward a forward direction with respect to the DC power supply. A temperature detector of the drive circuit detects temperature of the diode. The drive circuit maintains the switching element in the on state irrespective of the control signal of the controller when the temperature detector detects a temperature greater than or equal to a predetermined value.
    • DC-DC转换器包括升压直流电源的电压并将电压提供给负载的电压转换电路,与电压转换电路并联设置的旁路电路,驱动电路接通和断开开关元件 旁路电路以及输出用于控制电压转换电路和驱动电路的控制信号的控制器。 二极管与开关元件并联连接,以相对于直流电源朝向正方向。 驱动电路的温度检测器检测二极管的温度。 当温度检测器检测到大于或等于预定值的温度时,驱动电路将开关元件保持在接通状态,而与控制器的控制信号无关。