FIELD: electricity.
SUBSTANCE: to power switch control circuit on MIS transistor there additionally introduced is insulating transformer, NOR circuit, AND circuit, converter, rectifier, non-insulated power source, threshold element, generator output; control input of converter is connected to IN1 terminal; control input of converter is connected to IN2 terminal; outputs of capacitor, positive output, negative output, output of threshold element is connected to OUT1 terminal; source of power transistor is connected to insulated common wire connected to OUT2 terminal of power switch, and sink of power transistor is connected to OUT3 terminal of power switch.
EFFECT: improving reliability of the device by actuation of protection at any moment and shaping the protection signal in the form of TTL level.
1 dwg
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