Current supply circuit for automobile applications, has power source attached at transistor for operation of transistor at limit for saturation of constant power source, which is designed for supplying constant base current to transistor

摘要

The circuit has a control circuit attached at a bipolar transistor (52) for operation of the transistor at a limit for saturation. A power source (56) is attached at the transistor for operation of the transistor at the limit for saturation of a constant power source, which is designed for supplying a constant base current to the transistor. The magnitude of the current is formed such that the collector-emitter voltage of the bipolar transistor is same as the collector-emitter-saturation voltage.