一种交直流通用型欠电压脱扣器的设计  

Design for a Kind of AC /DC Under-Voltage Release

作　　者：林剑峰 张国华[2] 王浩[2] 

机构地区：[1]海军驻上海电站辅机厂军事代表室,上海200090 [2]上海电器科学研究所(集团)有限公司,上海200063

出　　处：《电器与能效管理技术》2014年第9期26-28,共3页Electrical & Energy Management Technology

摘　　要：提出了一种新颖的电路设计方法,设计了一种交直流通用的欠电压脱扣器。通过BUCK开关电源技术解决了设备的自供电问题,并借助单片机实现了不同电网电压下的真有效值采样和脱扣执行机构的PWM驱动。试制了样机,通过产品的各项型式试验证明了设计方法的有效性。To obtain the universality of a sort of AC/DC under-voltage release, a novel design method was presented. The Buck switching mode power supply technique helps the device self-power supply, and the single chip was employed to sample RMS voltage value and to PWM -based drive release actuators under different power grid with different voltage. Meanwhile, the critical problems existing within the presented design were studied. Finally, the availability of the advised design method was proved by a series of performance verifications.

关 键 词：欠电压脱扣器 BUCK开关电源 真有效值采样 PWM驱动 

分 类 号：TM56[电气工程—电器]