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公开(公告)号：US09136768B2
公开(公告)日：2015-09-15
申请号：US13767413
申请日：2013-02-14
申请人： TDK Corporation
发明人： Gakuou Sasaki , Yuuta Takano
CPC分类号： H02M3/33538 , H02M1/4225 , H02M2001/007 , Y02B70/126 , Y02P80/112
摘要： A switching power supply device includes: a power factor correction circuit having a step-up chopper circuit including a chopper switching element and a power factor correction control unit controlling a switching operation of the chopper switching element; a DC/DC converter having a transformer, a switching circuit, a rectifier circuit, a smoothing circuit, and a DC/DC converter control unit; and a control ON/OFF circuit controlling the ON/OFF states of an output voltage of the DC/DC converter circuit. The switching circuit is provided at a primary winding side of the transformer. The rectifier circuit and the smoothing circuit are provided at a secondary winding side of the transformer. The control ON/OFF circuit controls the ON/OF states of the output voltage of the DC/DC converter circuit by controlling the power factor correction control unit and the DC-DC converter control unit based on an external signal.
摘要翻译： 开关电源装置包括：功率因数校正电路，具有包括斩波开关元件的升压斩波电路和控制斩波开关元件的开关动作的功率因数校正控制单元; 具有变压器的DC / DC转换器，开关电路，整流电路，平滑电路和DC / DC转换器控制单元; 以及控制ON / OFF电路，控制DC / DC转换器电路的输出电压的ON / OFF状态。 开关电路设置在变压器的初级绕组侧。 整流电路和平滑电路设置在变压器的次级绕组侧。 控制ON / OFF电路通过基于外部信号控制功率因数校正控制单元和DC-DC转换器控制单元来控制DC / DC转换器电路的输出电压的ON / OF状态。
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公开(公告)号：US12113394B2
公开(公告)日：2024-10-08
申请号：US17751381
申请日：2022-05-23
申请人： TDK CORPORATION
发明人： Takumi Inagawa , Yuuta Takano
摘要： An auxiliary power supply device in which an increase in the size of an entire system including both an auxiliary power supply circuit unit and a sub-power supply circuit unit is able to be curbed is provided. There is provided an auxiliary power supply device configured to be connected to a power supply device, the auxiliary power supply device including: an auxiliary power supply circuit unit configured to supply electric power to the power supply device in a case in which supply of electric power to the power supply device is shut off; and a sub-power supply circuit unit having an input side connected to the power supply device and an output side connected to a load and configured to supply an output voltage to other circuit units in accordance with electric power supplied from the power supply device.
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