초록 ▼

A high efficiency current limit circuit comprises a current sensor, a control unit responsive to the current sensor for providing a control signal to a solid-state series pass element which limits load current. A thermal safety circuit provides overtemperature circuit protection. Together, the curre

A high efficiency current limit circuit comprises a current sensor, a control unit responsive to the current sensor for providing a control signal to a solid-state series pass element which limits load current. A thermal safety circuit provides overtemperature circuit protection. Together, the current limit circuit and thermal safety circuit provide continuous short circuit protection (of indefinite time duration) with automatic recovery upon removal of the short.

대표청구항 ▼

A current limiter for limiting load current delivered from an input voltage source to a load: current sensing means, responsive to the input voltage source for conducting the load current and providing a sensed signal indicative of the magnitude thereof; control means, responsive to the magnitude of

A current limiter for limiting load current delivered from an input voltage source to a load: current sensing means, responsive to the input voltage source for conducting the load current and providing a sensed signal indicative of the magnitude thereof; control means, responsive to the magnitude of the sensed signal for providing a control signal for controlling the magnitude of the load current; and a solid-state series pass element, responsive to the load current and responsive to said control signal for providing said load current by operating in its saturation region for load currents less than a selected magnitude and in its linear region for load currents greater than said selected magnitude.