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公开(公告)号：EP3054575A1
公开(公告)日：2016-08-10
申请号：EP13894980.5
申请日：2013-10-01
发明人： KATSUMATA Hiroki
IPC分类号： H02M7/12
CPC分类号： H02M1/4208 , H02M1/14 , H02M1/42 , H02M1/4225 , H02M1/4233 , H02M1/44 , H02M7/06 , Y02B70/126
摘要： Provided is a power factor correction circuit, which includes a rectifier circuit 20 that rectifies voltage of an AC power supply 10, a series circuit of an inductor 31 and a semiconductor switch 33 that is connected between output terminals of the rectifier circuit 20, and a series circuit of a diode 34 and a smoothing capacitor 35 that is connected to both ends of the semiconductor switch 33, and in which a load 40 is connected to both ends of the smoothing capacitor 35, so that the power factor on the input side of the rectifier circuit 20 is corrected by the switching operation of the semiconductor switch 33. This power factor correction circuit includes a control circuit 70 that makes switching frequency of the semiconductor switch 33 variable, and the control circuit 70 controls the switching frequency of the semiconductor switch 33 such that the switching frequency becomes the maximum when the ripple of a current flowing through the inductor 31 becomes the maximum. According to this power factor correction circuit, the normal mode noise can be reduced, and the size of a filter circuit 15 can be decreased.
摘要翻译： 提供了一种功率因数校正电路，其包括整流电路20，其对交流电源10的电压进行整流，电感器31的串联电路和连接在整流电路20的输出端子之间的半导体开关33和 二极管34的串联电路和平滑电容器35，其连接到半导体开关33的两端，并且其中负载40连接到平滑电容器35的两端，使得输入侧的功率因数 整流电路20通过半导体开关33的开关动作进行校正。该功率因数校正电路包括使半导体开关33的开关频率可变的控制电路70，控制电路70控制半导体开关的开关频率 使得当流过电感器31的电流的纹波变为最大时，开关频率变为最大值。 根据该功率因数校正电路，可以降低正常模式噪声，并且可以减小滤波器电路15的尺寸。
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公开(公告)号：EP2849308A1
公开(公告)日：2015-03-18
申请号：EP13787366.7
申请日：2013-04-02
摘要： The invention relates to a motor drive device that converts direct current voltage of a battery 2 into alternating current voltage using a power conversion circuit, thus driving an alternating current motor 3. The motor drive device includes a full bridge circuit 10 configured by a plurality of legs having a semiconductor switch element 101 in each of upper and lower arms being connected in parallel, wherein high frequency alternating current voltage output from the full bridge circuit 10 in a condition wherein the full bridge circuit 10 is connected to an alternating current power supply 1 is converted into direct current voltage via a transformer 21 and an alternating current/direct current conversion circuit 11, thus charging the battery 2. Also, direct current voltage of the battery 2 is converted into alternating current voltage by the full bridge circuit 10 in a condition wherein the alternating current power supply 1 is cut off from the full bridge circuit 10, and supplied to the alternating current motor 3. Because of this, the isolating transformer 21 can be driven at high frequency while the motor driving power conversion circuit is also used for battery charging, and a reduction in size and reduction in cost of the overall device are achieved.
摘要翻译： 本发明涉及一种使用电力转换电路将电池2的直流电压转换成交流电压，从而驱动交流电动机3的电动机驱动装置。电动机驱动装置包括由多个 在上臂和下臂中的每一个中具有半导体开关元件101的腿并联连接，其中在全桥电路10连接到交流电源1的情况下，从全桥电路10输出的高频交流电压 通过变压器21和交流/直流转换电路11转换为直流电压，从而对电池2充电。此外，电池2的直流电压由全桥电路10转换为交流电压 其中交流电源1从全桥电路10切断，并提供给th 因此，隔离变压器21可以在电动机驱动电力转换电路也用于电池充电的同时以高频率驱动，从而实现整体装置的尺寸减小和成本降低。
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