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图1是一种典型的智能控制型洗碗机电路的接线图。通过该图可以看出,该电路是由微处理器、加水电磁阀、电机、排水电磁阀等构成。1.电源电路电源电路由电源开关S、电源变压器T、整流管VDl~VD4、滤波电容C1~C9、稳压器IC4和IC5、过热保护器ST3、滤波电容C、压敏电阻RV、熔断器FU等构成,如图2所示。参见图1、图2,接通电源开关后,市电电压通过过热保护器ST3、熔断器FU输入,利用C滤除市电电网内的高频干扰脉冲,再利用T降压得到16V左右(与市电电压高低有关)的交流电压。
Figure 1 is a typical intelligent control type dishwasher circuit wiring diagram. It can be seen from the figure that the circuit is composed of a microprocessor, a water-filled electromagnetic valve, a motor, a drain electromagnetic valve, and the like. 1. Power circuit Power circuit from the power switch S, power transformer T, rectifier VDl ~ VD4, filter capacitor C1 ~ C9, voltage regulator IC4 and IC5, overheat protection ST3, filter capacitor C, varistor RV, fuse FU and other components, shown in Figure 2. See Figure 1, Figure 2, the power switch is turned on, the mains voltage through the overheat protector ST3, fuses FU input, the use of C filter out high-frequency interference mains power grid, and then use T buck to get about 16V And the level of mains voltage) AC voltage.