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1. 发明授权

US4703248A Switching arrangement for full-wave power control which is insensitive to mains voltage fluctuations 失效
标题翻译：全波功率控制的开关布置，对电源电压波动不敏感
公开(公告)号：US4703248A
公开(公告)日：1987-10-27
申请号：US883509
申请日：1986-07-08
申请人： Gerhard Kuhnemundt , Heinz Elsasser
发明人： Gerhard Kuhnemundt , Heinz Elsasser
IPC分类号： G05F5/02 , H02M5/257 , H02P25/14
CPC分类号： H02P29/026 , H02M5/257 , H02P25/14 , Y10S388/917
摘要： A switching arrangement for full-wave power control comprising a triac (2), the control electrode of which is preceded by a trigger diode, the control voltage being taken from an RC section having at least one potentiometer (9), which effects a phase shift in the firing time as a function of the position of the potentiometer (9), is improved by the RC section (9, 10) being connected to a constant voltage source. This consists of two Z diodes (6) which are connectd in opposition and which are advantageously bridged by means of an adjustable voltage divider (7, 8), in such a manner that the RC section (9, 10) is connected to an adjustable part voltage. Instead of bridging the triac (2) for full drive, as usual, the trigger diode (11) is connected to a special bias resistor by means of a switch (13). According to a preferred embodiment, the resistors of the switching arrangement consists of a low-temperature thick-film paste printed on a hard paper board (see drawing relating to this).
摘要翻译：一种用于全波功率控制的切换装置，包括三端双向可控硅（2），其控制电极之前是触发二极管，所述控制电压取自具有至少一个电位器（9）的RC部分，所述电位器（9）作为电位器（9）的位置的函数的点火时间的移动，被连接到恒定电压源的RC部分（9,10）改善。这由两个相对连接的Z二极管（6）组成，它们有利地通过可调分压器（7,8）桥接，使得RC部分（9,10）连接到可调节的部分电压。代替将三端双向可控组件（2）桥接成全驱动，通常情况下，触发二极管（11）通过开关（13）连接到特殊的偏置电阻器。根据优选实施例，开关装置的电阻器由印刷在硬纸板上的低温厚膜糊（参见与此相关的附图）组成。

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