A simple energy-tripped circuit breaker with automatic delayed retry is described.
LT6108-2 current sense amplifier
LTC6994-2 Timerblox delay timer
A circuit breaker protects sensitive load circuits from excessive current flow by opening the power supply when the current reaches a predetermined level. The simplest circuit breaker is a fuse, but blown fuses require physical replacement. An electronic circuit breaker provides the same measure of circuit protection as a fuse without the single-use problem. Nevertheless, an electronic circuit breaker with a fixed trip current threshold, while effective ...