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下面以川井DH-168型除湿机为例,介绍电子控制型除湿机电路原理与故障检修方法。该电路由电源电路、除湿控制电路、化霜电路、水满控制电路等构成,如图1所示。1.电源电路原理将电源线插入市电插座后,220 V市电电压经2 A熔断器输入到变压器的初级绕组。从它的次级绕组输出12 V(与市电高低成正比)左右的交流电压,利用D1~D4组成的桥式整流堆整流,C1滤波产生12 V左右
The following Kawai DH-168 dehumidifier, for example, describes the electronic control dehumidifier circuit principle and troubleshooting methods. The circuit from the power circuit, dehumidification control circuit, defrost circuit, water full control circuit, such as shown in Figure 1. 1. Power supply circuit principle The power cord into the mains outlet, the 220 V mains voltage input through the 2 A fuse to the transformer primary winding. From its secondary winding output of 12 V (proportional to the level of municipal electricity) about the AC voltage, the use of D1 ~ D4 composed of bridge rectifier rectifier, C1 filter produces about 12 V