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Current indicator for fault assessments of loop circuit integrity while providing circuit isolation

机译：电流指示器，用于评估回路的完整性，同时提供电路隔离

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摘要

A current detector/indicator for DC has a transistor (1) and an LED (2). They are arranged so that current flow through the LED causes the transistor to conduct, shunting excess current away from the LED and through the transistor. For AC, the circuit can be doubled, with transistors and LEDs arranged with inverse polarity. A triac (15) may supplant the two transistors, with parallel, opposed LEDs (16) in its gate circuit.

机译：直流电流检测器/指示器具有一个晶体管（ 1 ）和一个LED（ 2 ）。它们的排列方式使得流过LED的电流使晶体管导通，从而将多余的电流分流离开LED并流过晶体管。对于交流电，该电路可以加倍，晶体管和LED的极性相反。三端双向可控硅开关元件（ 15 ）可以取代两个晶体管，并在其栅极电路中具有相对的平行LED（ 16 ）。 展开▼

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公开/公告号US6424136B1

专利类型

公开/公告日2002-07-23

原文格式PDF

申请/专利权人 GARDNER ROBERT;
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申请/专利号US20000530690

发明设计人 ROBERT GARDNER;
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申请日2000-05-04

分类号G01R190/00;G01R310/80;G01R191/40;

国家 US

入库时间 2022-08-22 00:48:19

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