FIELD: electricity.
SUBSTANCE: electronic safety device comprises positive and negative terminals to supply power to load, bipolar and field transistors and four resistors. Positive terminal is connected to the first outlet of the first resistor, the first outlet of the third resistor. Negative terminal is connected to the second outlet of the second resistor, to emitter of bipolar transistor and to drain of field transistor. The second outlet of the first resistor is connected to the first outlet of fourth resistor, to the first outlet of the second resistor and to base of bipolar transistor. The second outlet of the third resistor is connected to collector of bipolar transistor and to gate of field transistor, and drain of field transistor is connected to the second outlet of fourth resistor.
EFFECT: reduction of own losses, increased efficiency, reliability of functioning and expanded field of application.
4 cl, 1 dwg
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