NEGATIVE_INPUT_CURRENT_REGULATOR

Published:2009/7/17 4:45:00 Author:Jessie | From:SeekIC

Opamp is used as inverter starting current-boosting transistor to provide positive supply voltage. Load current range depends on transistor used.R3 forcesQ1 to conduct much heavier current than feedback current, as required for high load current. Current gain depends on ratio of R2 to R3-W. G. Jung, IC Op-Amp Cookbook, Howard W. Sams, Indianapolis, IN, 1974, p 176-177.



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