US 12744397 B2 / Sep 22, 2026

Intrinsically safe energy harvester for powering multi-sensor

An electrical circuit for protecting an electronic device, and a method of operating the electric circuit, can involves the use of a protection circuit that includes a group of diodes and one or more field effect transistors, along with an energy storage device associated with the electronic device. The field effect transistors are electrically connected to the group of diodes, and reference voltage associated with the protection circuit is tunable to trigger the protection circuit at a threshold voltage, which when triggered activates the field effect transistor(s) to protect the energy storage device from an over voltage condition or an over charging condition until the over voltage condition or the overcharging condition is no longer present.