The utility model relates to a novel infrared interface electronic energy meter, the power supply part, a measuring part, MCU microcontroller, infrared interface circuit and a display part, wherein the power supply part comprises a protection circuit and step-down circuit and power supply circuit, which is characterized in that the step-down circuit consists of an inductor CZ, resistor R and capacitor C series which one end of the inductor, CZ series resistor R and capacitor C is connected with the input AC power supply is connected in series inductor CZ, resistor R and capacitor C and the other end of the input end of the power circuit, power supply circuit is connected to another input and input AC power supply. The utility model has the advantages that the utility model has the advantages of low cost, space saving, convenient use, low power consumption and low cost.
【技术实现步骤摘要】
【技术保护点】
一种新型红外接口电子式电能表，由电源部分、计量部分、单片机ＭＣＵ、红外接口电路及显示部分构成，其中电源部分由保护电路、降压电路及电源电路构成，保护电路为一个压敏电阻ＺＲ并联在输入交流电源的两端，其特征在于：降压电路由电感器ＣＺ、电阻器Ｒ和电容器Ｃ串联构成，其串联的电感器ＣＺ、电阻器Ｒ和电容器Ｃ的一端与输入交流电源的一端相连，串联的电感器ＣＺ、电阻器Ｒ和电容器Ｃ的另一端与电源电路的输入端相接，电源电路的另一输入端与输入交流电源的另一端相连接。
【技术特征摘要】
【专利技术属性】
技术研发人员：李中泽，
申请(专利权)人：武汉盛帆电子有限公司，
类型：实用新型
国别省市：83[中国|武汉]
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