20W_AT_60_Hz

Published:2009/7/20 22:55:00 Author:Jessie | From:SeekIC

Adding high-current oomph mentary transistors to opamp gives servoam-plifier with 115-V output. Opamp drives low impedance of 10-V filament transformer connected in reverse to boost output to 115 V for driving servo. Use heatsink for transistors. Bringing opamp feedback resistor to actual out-put point makes nonlinearities and crossover point between transistors insignificant by placing them in feedback loop.-I. Math, Math's Notes, CQ, Jan. 1978, p 53-54 and 70.



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