FIELD: electronic engineering; switch-mode power supplies incorporating load unit overcurrent protective gear.
SUBSTANCE: proposed voltage switching device has electronic switch that functions to supply load unit with power through load current sensor. Single-pulse generator provides for device reset to make it ready for ON-operation and relay unit connected to current sensor output through OR gate and flip-flop and functions to disconnect load unit from power supply on occurrence of overcurrent both under transient and steady state conditions thereby affording regulation of desired variables of load overcurrent protective gear and reliable reset (setting in OFF-position) before energizing the device.
EFFECT: enlarged functional capabilities and operating reliability.
2 cl, 1 dwg
