Under/Over Voltage and Current Protection Switch

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https://www.electronics-lab.com/project/under-over-voltage-and-current-protection-switch/

This simple project allows users to design an under-voltage, over-voltage, under-current, and over-current protection switch. It is a highly useful system for safeguarding electrical loads against abnormal power or current conditions. The project features a relay with optocoupler input, a current-sensing circuit based on the INA195 amplifier, a 10mΩ shunt resistor, and a voltage divider […]

Fault Protected High Side Switch

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https://www.electronics-lab.com/project/fault-protected-high-side-switch/

This project uses the LT1910 high-side switch to protect a load from over-current. It automatically shuts off, flags the fault, waits 150 ms, and attempts to restart. The current trip point is set via selectable shunt resistors.

Variable Over-Current Detection Load Switch

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https://www.electronics-lab.com/project/variable-over-current-detection-load-switch/

This over-current latch load switch provides over-current protection, thermal shutdown protection, soft-start function, and low power OFF function. The Overcurrent protection function is activated when the load is shorted. This protection function is effective in preventing damage due to sudden and unexpected incidents. It is also equipped with an error flag notification pin which indicates […]