OVERLOAD_PROTECTION_2

Published:2009/7/21 10:42:00 Author:Jessie | From:SeekIC

Switches power off rapidly to prevent current overloads from damaging transistors in breadboard circuits under test. Voltage drop across 0.47-ohm resistor and Q1 biases Q2 to saturation, causing Q3 and Q4 to open power relay.- F. W. Kear, Laboratory Supply for Transistors, Electronics, 35:30, p 55-57.



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