公开(公告)号：EP2146424A3

公开(公告)日：2010-06-02

申请号：EP09172314.8

申请日：2004-05-12

申请人： MERSTech Inc.,

发明人： Shimada, Ryuichi ,  Sumitani, Hideo ,  Takaku, Taku ,  Isobe, Takanori

IPC分类号： H02P1/44 ,  H02M1/42

CPC分类号： H02P27/16 ,  H02M1/4208 ,  H02M2003/1555 ,  Y02B70/126 ,  Y02P80/112 ,  Y10T307/62 ,  Y10T307/631

摘要： The present invention relates to an alternating-current power supply device which can improve a power factor of an alternating-current load, realizes low cost and miniaturization, and recovers magnetic energy. The alternating-current power supply device includes a bridge circuit composed of four reverse conducting semiconductor switches, a capacitor that is connected between direct-current terminals of the bridge circuit and absorbs the magnetic energy at the time of cutting off the current, an alternating-current voltage source that is connected to the induction load in series and is inserted between alternating-current terminals of the bridge circuit, and a control circuit that gives a control signal to gates of the respective reverse conducting semiconductor switches and controls on/off states of the respective reverse conducting semiconductor switches. The control circuit simultaneously controls the on/off operation of the paired reverse conducting semiconductor switches positioned on a diagonal line of the four reverse conducting semiconductor switches composing the bridge circuit, makes a control so that when one pair of the two pairs is ON, the other pair is OFF, and switches the control signal in synchronization with a voltage of the alternating-current voltage source.

公开(公告)号：EP2146424A2

公开(公告)日：2010-01-20

申请号：EP09172314.8

申请日：2004-05-12

申请人： MERSTech Inc.,

发明人： Shimada, Ryuichi ,  Sumitani, Hideo ,  Takaku, Taku ,  Isobe, Takanori

IPC分类号： H02M3/42

CPC分类号： H02P27/16 ,  H02M1/4208 ,  H02M2003/1555 ,  Y02B70/126 ,  Y02P80/112 ,  Y10T307/62 ,  Y10T307/631

摘要： The present invention relates to an alternating-current power supply device which can improve a power factor of an alternating-current load, realizes low cost and miniaturization, and recovers magnetic energy. The alternating-current power supply device includes a bridge circuit composed of four reverse conducting semiconductor switches, a capacitor that is connected between direct-current terminals of the bridge circuit and absorbs the magnetic energy at the time of cutting off the current, an alternating-current voltage source that is connected to the induction load in series and is inserted between alternating-current terminals of the bridge circuit, and a control circuit that gives a control signal to gates of the respective reverse conducting semiconductor switches and controls on/off states of the respective reverse conducting semiconductor switches. The control circuit simultaneously controls the on/off operation of the paired reverse conducting semiconductor switches positioned on a diagonal line of the four reverse conducting semiconductor switches composing the bridge circuit, makes a control so that when one pair of the two pairs is ON, the other pair is OFF, and switches the control signal in synchronization with a voltage of the alternating-current voltage source.

摘要翻译： 本发明涉及能够提高交流负载的功率因数的交流电源装置，实现低成本，小型化，并且恢复磁能。 交流电源装置包括由四个反向导电半导体开关构成的桥接电路，连接在桥接电路的直流端子之间并在切断电流时吸收磁能的电容器， 串联连接到感应负载并插入桥接电路的交流端子之间的电流电压源和向相应反向导通半导体开关的栅极提供控制信号的控制电路，并且控制开关状态的控制 相应的反向导电半导体开关。 控制电路同时控制位于构成桥接电路的四个反向导通半导体开关的对角线上的成对的反向导通半导体开关的导通/截止操作，从而进行控制，使得当两对中的一对成为ON时， 另一对是OFF，并且与交流电压源的电压同步地切换控制信号。