FIELD: electricity.
SUBSTANCE: MIS transistor power key is proposed, comprising a transformer, the secondary winding of which is shunted by two serially joined resistors, the end of the secondary winding of the transformer is connected directly with a source of the MIS transistor, to the gate of which a stabilitron is connected with an anode, a transistor. At the same time a diode is introduced, the anode of which is connected to the start of the secondary winding of the transformer, and the cathode - to the cathode of the stabilitron, the emitter of the transistor is connected to the point of connection of resistors, the base - to the source, and a collector - to the gate of the MIS transistor.
EFFECT: improving power key operation reliability.
1 dwg
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