[NEW] DIY Short Circuit Protection / With Auto Restart Function

Published at : 23 Dec 2025

[NEW] DIY Short Circuit Protection / With Auto Restart Function

Hello, in this video I want to show you a great short circuit protection circuit. Thanks to the trimpot on this circuit, we can keep the current limit at the desired level.It also has an automatic restart function, so the circuit can start automatically after 1 second without having to press the reset button. The mosfet in the circuit can be replaced with a more powerful one. Please take into account the resistor wat and circuit paths accordingly. The circuit is open to development. For example, a function such as setting the reset time or starting with low power and then switching to full power.

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Circuit Diagram - PCB
Circuit -https://drive.google.com/file/d/1BM1JViHvTOIzit9WY-lUlQntp_yYnoDX/view?usp=sharing

PCB -
https://drive.google.com/file/d/1sscF7e8C0Emi-X36MHA3FtLBzg8JA4QD/view?usp=sharing
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