公开(公告)号：US3794908A

公开(公告)日：1974-02-26

申请号：US3794908D

申请日：1973-01-29

Applicant: ASEA AB

Inventor： LINDBLOM G ,  OLSSON K

IPC: H02H7/125 ,  H02M1/08 ,  H02M1/088 ,  H02M1/096 ,  H02M7/155 ,  H03K17/725 ,  H02M7/48 ,  H03K17/72

CPC classification number: H02M1/096 ,  H02M1/088

Abstract: A thyristor rectifier for high voltage is formed of a plurality of thyristors connected in series and each having a control circuit controlled from a common control device. Connected to each control circuit is a light emitter of semiconductor type which emits a signal for the corresponding thyristors as long as the control circuit is intact and is being properly fed and the thyristor voltage has the proper polarity.

Abstract translation: 用于高电压的晶闸管整流器由串联连接的多个晶闸管形成，每个具有由公共控制装置控制的控制电路。 连接到每个控制电路的是半导体类型的发光体，只要控制电路是完整的并且被适当地馈电并且晶闸管电压具有适当的极性，它就发出相应的晶闸管的信号。

公开(公告)号：US3821564A

公开(公告)日：1974-06-28

申请号：US32743773

申请日：1973-01-29

Applicant: ASEA AB

Inventor： OLSSON K ,  LINDBLOM G

IPC: G05F1/56 ,  H02H7/12 ,  H02M1/08 ,  H02M1/088 ,  H02M1/096 ,  H03K17/73 ,  H03K17/16 ,  H03K17/56

CPC classification number: H02M1/088 ,  H02M1/096

Abstract: A control circuit for a thyristor includes a voltage divider connected in parallel with the thyristor for feeding the control circuit. The voltage divider includes a resistor nearest the anode of the thyristor and in series with the resistor a parallel connection of a capacitor, a Zener-diode and a varistor. The feeding circuit of the control circuit is connected over such parallel connection. The resistor is dimensioned with regard to the desired current in the voltage divider, while the parallel connection is dimensioned to store in the condensor the necessary feeding voltage over the control circuit.