超级电容在电子式电能表的应用

摘要

超级电容,称为超大容量电容器,又名法拉电容.超级电容以安全节能、新型环保、重复利用性强等显著优势和特点,日益成为各类电子产品电源的主题如汽车音响、电话机、智能家电、电表、税控机、行车记录仪、儿童电动玩具、录音机、节能灯.文章主要介绍超级电容在电子式电能表上作为备份数据电源总体思路,且着重介绍超级电容选型、充电电路设计、PWM调制控制电路和放电电路设计.该设计具有充电能量可调、寿命长、节约器件和人力成本等特点.%Super capacitor, also known as Fala capacitor. Super capacitor is safe, energy saving, environmentally friendly and reusable. So it has increasingly become the theme of power supply of all kinds of electronic products such as car audio, telephones, smart appliances, meters, tax control machine, vehicle traveling data recorder, children toys, recorder, and lamps. This paper mainly introduces the general idea of the power supply of the backup data in the electronic energy meter, and introduces the super capacitor selection, charging circuit design, PWM modulation control circuit and discharge circuit design. The design has the characteristics of energy saving, long service life, saving device and human cost.