ZENER_TESTER

Published:2009/6/25 20:44:00 Author:May | From:SeekIC

This circuit provides a low cost and reliable method of testing zener diodes. RV1 can be calibrated in volts, so that when LED 1 just lights, the voltage on pins 2 and 3 are nearly equal. Hence, the zener voltage can be readdirectly from the setting of RV1. The supply need only be as high a value as the zener itself.For a more accurate measurement, a precision pot could be added and calibrate



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