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Add this Short Circuit Protection to Your Power Supply

Last Updated on October 14, 2022 by Swagatam 107 Comments

simple short circuit protection for power suppllies using relay

A rather cheap yet reasonably effective short circuit protection circuit is I have explained below which can be used for safeguarding power supply circuit Introduction A power supply unit is an indispensable unit for every electronic enthusiast and engineers working in the relevant field. Though today all of us use hi-tech power supply units having […]

Filed Under: Power Supply Circuits Tagged With: Power, Protection, Short, Supply

Amplifier Short/Overload Protection Circuit – 2 Ideas Discussed

Last Updated on May 15, 2026 by Swagatam 73 Comments

simple amplifier protection circuit

Due to some reason if the loudspeaker of a power amplifier gets shorted, that may lead to a fatal damage to the amplifier component. To prevent this an amplifier short circuit protector circuit can be very useful. In the following post I have explained 2 simple amplifier short circuit or overload protection circuits for safeguarding […]

Filed Under: Audio and Amplifier Projects Tagged With: Amplifier, Discussed, Ideas, Overload, Protection, Short

Mains AC Short Circuit Breaker/Protector – Electronic MCB Circuit

Last Updated on February 15, 2026 by Swagatam 117 Comments

ShortCircuitbreaker

In this post I will try to explain the making of a simple 220 V, 120 V AC mains short circuit breaker using an SCR and a triac combination, (researched and designed by me). The circuit is an electronic version of the normal main circuit breaker MCB units that we use in our homes. Note: […]

Filed Under: Voltage Control and Protection Tagged With: AC, Breaker, Electronic, Mains, Protector, Short

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