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2. 发明专利

CA2177614A1 CONTROLLED ELECTRONIC SWITCH 未知
公开(公告)号：CA2177614A1
公开(公告)日：1995-06-08
申请号：CA2177614
申请日：1994-12-02
申请人： NAGY VALENTIN , NAGY LAJOS
发明人： NAGY VALENTIN , NAGY LAJOS
IPC分类号： H02M1/08 , H03K17/0814 , H03K17/72 , H03K17/725 , H03K17/732
摘要： The present invention relates to a controlled electronic switch (a semiconductor switch device) for connecting electical consumers of different capacity with a DC or AC line of one phase or several phases without electric arc or spark which ensures during the switching off of active loads a substantial decrease of the transients, the controlled electronic switch comprising two antiparallel thyristors. According to the present invention the thyristors (T1, T2) are provided with a switch (S1) between the control gates. To prevent the flow of a back current across the consumer a second switch (S2) is connected in series with the pair of antiparallelly connected thyristors (T1, T2). To avoid the distortion of the semiconductor switch devices a third switch (S3) may be connected in parallel with the series connection of the second switch (S2) and the pair of antiparallelly connected thyristors (T1, T2). List of reference signs D diode LED LED diode O,N zero line R1, R2 resistor A,R,S,T phase line RL load S1 ,S1' switch S2 switch S3, S3' switch S11-S18 switch T1-T4 thyristor T11-T14 thyristor T21-T24 thyristor TS control time U voltage source URL volgate fall (on the load)

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