| 摘要 |
A switch in bipolar technology including a first main transistor of a first type connecting an input terminal, intended to be connected to a first terminal of application of a D.C. supply voltage, to an output terminal intended to be connected to a load to be supplied; a second bipolar transistor of the same type as the first one, connected between the input terminal and an input of a current mirror circuit having a copying output connected to the base of the first transistor, the bases of the first and second transistors being interconnected and the first transistor having an emitter surface area greater than the second one; and a circuit for biasing the second transistor including the copying of the output voltage of the switch on the collector of this second transistor.
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