公开(公告)号：US4330817A

公开(公告)日：1982-05-18

申请号：US82062

申请日：1979-10-05

申请人： Zoltan Avar ,  Lajos Salavetz

发明人： Zoltan Avar ,  Lajos Salavetz

IPC分类号： H02M7/757 ,  H02M1/08 ,  H02M5/45 ,  H02M7/527 ,  H02P27/06 ,  H02P13/18

CPC分类号： H02P27/06 ,  H02M5/45 ,  H02M7/527 ,  H02M2007/4811 ,  H02P27/047

摘要： In order to energize a load with an output current generally conforming to a control voltage, trains of firing pulses are alternately applied during respective conduction intervals of a recurrence period to a pair of main thyristors connected to opposite terminals of a balanced power supply which may be a DC source. The main thyristors are quenched, at the ends of their respective conduction intervals, by ancillary thyristors which lie in series with a resonant circuit including a commutating capacitor and alternately receive firing pulses in continuous succession in order to keep that capacitor operatively connected at all times to one or the other terminal of the power supply. The transmission of firing pulses to the several thyristors is timed by a logic circuit under the control of a comparator to which the control voltage is fed together with a sawtooth voltage establishing the aforementioned recurrence period.

摘要翻译： 为了通过大体上符合控制电压的输出电流激励负载，在连续到平衡电源的相对端子的一对主晶闸管中，在复发周期的各个传导间隔期间交替施加点火脉冲， 一个直流电源。 主晶闸管在它们各自的传导间隔的末端被辅助晶闸管猝灭，该辅助晶闸管与包括换向电容器的谐振电路串联，并且连续地接续地接收点火脉冲，以便使电容器始终可操作地连接到 一个或另一个终端的电源。 点火脉冲向几个晶闸管的传输由控制电压与建立上述复现周期的锯齿波电压一起供给的比较器控制的逻辑电路定时。