AC高压漏电流测试仪的设计与实现

Design and Implementation of AC Leakage Current Tester

为了测量连接线、连接器等连接类产品的电气安全性能,通常需要在两个相互绝缘的导体间施加一定的AC高压,然后测量两导体间的漏电流的大小。文中介绍以Cortex-M4为主控系统,配置AC高压产生电路,漏电流采样测量电路和LCD显示电路的AC漏电流测试仪的设计与实现。实际应用和测试结果表明,本测试仪具有测量速度快,精度高,操作方便的优点,能有效地区分不良产品,可广泛地应用于连接器产品生产企业。

In orderto measure connect cables, connectors and other products of the electrical safety performance,usually need to put between two insulated conductors must be AC voltage,then measure the size of the leakage current between the two conductors.This paper introduces the design and implementation of AC leakage current tester,the Cortex-M4 as the main control system with AC high voltage generating circuit,leakage current sampling circuit and LCD display circuit.Practical application and the test results show that the tester has the measuring speed,high accuracy,the advantages of convenient operation, can effectively distinguish the bad product,can be widely used in connecting products manufacturing enterprises.