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To switch on the mains voltage, either a mechanical switch or a relay offers a simple solution. However, the relay and its associated components occupy a lot of space and cannot be accommodated in a standard switch box. The...
When ever AC mains supply fails, this mains supply failure alarm circuit alerts you by sounding an alarm. It also provides a backup light to help you find your way to the torch or the generator key in the...
This zener diode tester can be used to check zener diodes of 3.3V to 18V. The breakdown voltage of the unknown zener diode is indicated on the precalibrated dial of potmeter VR1. The tester can also identify the polarity...
One of the major challenges during a circuit design is to generate low-voltage DC from AC to power the circuit. There are many methods to convert AC voltage into DC. The most common method is the use of a...
A tutorial on the Zener Diode and how to use them as voltage clamps, voltage regulators, and how to create audio distortion circuits. Circuit symbol Working of a Zener Diode With a regular diode, current can only flow in one direction....