FIELD: electricity.
SUBSTANCE: power key on an MDS-transistor comprises: a transformer, the secondary winding of which is shunted by two serially connected resistors, the start of the secondary transformer winding via a diode in the trigger polarity is connected to the MDS-transistor gate; a n-c-n type transistor, a collector of which is connected to the MDS-transistor gate, and an emitter - with the point of resistors connection, and a base - with the end of the secondary transformer winding; a source of the MDS-transistor is connected with the point of connection of resistors and the emitter of the transistor, there is an additional diode, the cathode of which is connected with the base, and the anode - with the transistor emitter.
EFFECT: increased reliability of a power key.
1 dwg
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