摘 要沟通固态继电器（缩写 SSR）是一种全部由固态电子元件组成的新型无触点通断电子开关,为四端有源器件。其中两个端子为输入控制端,另外两端为输出受控端,中间采纳光电隔离,作为输入输出之间电气隔离(浮空)。在输入端加上直流或脉冲信号,输出端就能从关断状态转变成导通状态(无信号时呈阻断状态),从而控制较大负载。整个器件无可动部件及触点,可实现相当于常用的机械式电磁继电器一样的功能。根据以上沟通固态固态继电器的特性，综合运用目前所学的知识设计一个符合上述要求的电路，该电路包括耦合电路、触发电路和过零控制电路以及开关电路与吸收电路三个基本单元电路，使用了发光二极管、感光三极管、可控硅和双相可控硅等器件，在此电路中采纳了过零控制装置，该设计能防止高次谐波的干扰和对电网的污染，该设计能大大提高系统的稳定性和准确性。关键字：三相沟通固态，无可动部件及触点。 AbstractThe exchange solid state relay (abbreviation SSR) is one kind completely the new non-contact make-and-break electronic switching which is composed of the solid state electronic component, for four pole active device And two posts for input control end, moreover the both sides are controlled the end for the output, middle uses the electro-optical isolation, takes between the input output the electrical isolation (to float spatially). Adds on direct-current or the signal impulse when the input end, the out-port can transform from the shutdown condition the conducting state (does not have signal assumes blocks condition), thus controls compares the high loading. The entire component not movable part and the electronic contact, may realize are equal to the commonly used mechanical type electromagnetic type relay same function. According to the above exchange solid state solid state relay's characteristic, the knowledge which the synthesis utilization present studies designs one to conform to the above request electric circuit, This electric circuit including coupled circuit,...
