A blast from the Elektor archives: this 1998 battery tester uses a simple LED display to reveal a battery’s true condition ...
This circuit runs a fast battery test without the need of power supply or expensive moving-coil voltmeters. It features two ranges: when SW1 is set as shown in the circuit diagram, the device can test ...
This article is dedicated to Jim Williams who several years ago (2006) wrote an article in EDN regarding the need of a good lab apparatus to qualify the behavior of voltage regulators for compliance ...
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