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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
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。
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2.发明授权Thyristor rectifier having a device for self-ignition or recovery protection 失效具有自燃或恢复保护装置的THYRISTOR整流器
公开(公告)号：US3842337A
公开(公告)日：1974-10-15
申请号：US37075373
申请日：1973-06-18
Applicant: ASEA AB
CPC classification number: H02M1/092 , H02H7/1206 , H02M1/088
Abstract: A thyristor rectifier for high voltage includes a number of series-connected thyristors with a control device for each thyristor and a control circuit for the whole rectifier connected to the control devices. There is a control pulse emitter in each control device which emits an indicating pulse when the voltage over the corresponding thyristor in the conducting direction amounts to a certain value. A protection device is provided which emits a signal for the whole rectifier through a control pulse transmitter if a voltage grows in the conducting direction of the rectifier at a time when only an insufficient number of thyristors have regained their blocking ability. This protection device includes a memory circuit and a counter to register the indicating pulses from the emitters of the control devices and an output circuit connected between the counter and the control pulse transmitter which emits a signal for ignition of the whole thyristor in dependence on a predetermined number of indicating pulses.
Abstract translation: 用于高电压的晶闸管整流器包括多个串联连接的晶闸管，其具有用于每个晶闸管的控制装置，以及连接到控制装置的整个整流器的控制电路。 每个控制装置中有一个控制脉冲发射器，当导通方向上相应的晶闸管上的电压达到一定值时，发出指示脉冲。 如果在只有不充分数量的晶闸管已经恢复其阻挡能力的时候，如果在整流器的导通方向上的电压增加，则通过控制脉冲发射器发出用于整个整流器的信号的保护装置。 该保护装置包括存储器电路和计数器，用于对来自控制装置的发射器的指示脉冲进行寄存，以及连接在计数器和控制脉冲发射器之间的输出电路，其根据预定的发射信号发出整个晶闸管的点火信号 指示脉冲数。
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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
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.
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