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Proceedings Paper

CURRENT source with controlled power supply voltage
Author(s): Jaroslaw Sikora
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Paper Abstract

This work presents examination of a novel current source circuit. The implementation of a linear combination of two reference voltages and a voltage drop across a load resistor to control a power supply voltage in a typical bipolar current source allows limitation of the correlation between the output stage collector-emitter voltage and the load current, resistance. The first reference voltage, Vref1, controls the load current, while the second reference voltage, Vref2, controls the output stage emitter-collector voltage. Consequently, this voltage is independent of the load current and resistance, which is particularly important for reducing the influence of Early effect. The presented circuit is characterized by a simple design and relatively low cost.

Paper Details

Date Published: 25 July 2013
PDF: 7 pages
Proc. SPIE 8902, Electron Technology Conference 2013, 89020Y (25 July 2013); doi: 10.1117/12.2031302
Show Author Affiliations
Jaroslaw Sikora, Lublin Univ. of Technology (Poland)

Published in SPIE Proceedings Vol. 8902:
Electron Technology Conference 2013
Pawel Szczepanski; Ryszard Kisiel; Ryszard S. Romaniuk, Editor(s)

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