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可控硅调温调光器是一种通用调节装置,适用于一般的小家电产品,例如,用于电熨斗、电热毯进行调温,用于台灯、吊灯进行调光等等。 工作原理 众所周知,可控硅导通必须同时具备两个条件:(1) 在可控硅阳极和阴极之间加正向电压;(2)在可控硅控制极上加触发电压。本电路就是利用可控硅的触发导通特性对负载电压进行调节,从而实现调温或调光。 可控硅调温调光器电路如附图所示。它是由负载回路和可控硅触发电路两部分组成。其中,负载RL通过D1～D4及可控硅SCR组成负载回路,T1,T2、R1～R6、W、C
Thyristor dimmer dimmer is a universal regulator, suitable for general small household appliances, for example, for irons, blankets for temperature control, for lamp, chandelier and so on. Working principle As we all know, thyristor conduction must have two conditions at the same time: (1) plus a positive voltage between the anode and the cathode of the thyristor; (2) the trigger voltage on the thyristor. This circuit is the use of thyristor trigger-on characteristics of the load voltage regulation, in order to achieve temperature control or dimming. SCR temperature dimmer circuit as shown in the figure. It is composed of load circuit and triac trigger circuit. Among them, the load RL through the D1 ~ D4 and thyristor SCR load circuit, T1, T2, R1 ~ R6, W, C