Short -circuit protective device(SCPD) based on photounit

一种基于光电元件的短路保护器

  • Inventors: WANG YIZHOU
  • Assignees: 汪亦舟
  • Publication Date: March 22, 2017
  • Publication Number: CN-206041479-U

Abstract

本实用新型公开一种基于光电元件的短路保护器,包括开关模块、短路保护模块和过压保护模块;所述开关模块包括三极管V2和开关S1,短路保护模块包括三极管V1、二极管D2、三极管V3和电阻R2,过压保护模块包括三极管V4、电阻R4和电阻R5;本实用新型利用发光二极管和光敏三极管组成一组光敏元件,对负载的短路情况进行监测,遇到短路情况时自动保护,同时还具有停电自锁和过压保护的功能。
The utility model discloses a short -circuit protective device(SCPD) based on photounit, including switch module, short -circuit protection module and overvoltage protection module, the switch module includes triode V2 and switch S1, and the short -circuit protection module includes triode V1, diode D2, triode V3 and resistance R2, and the overvoltage protection module includes triode V4, resistance R4 and resistance R5, the utility model discloses utilizing emitting diode and phototriode to constitute a set of light -sensitive element, monitoring the short circuit condition of load, automatic protection when meetting the short circuit condition still has power failure auto -lock and overvoltage protection's function simultaneously.

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