5) One approach to "offset correction" involves the adjustment of the values of Rc1 and Rc2 so as to reduce the differential output voltage to zero when both input terminals are grounded. This offset- nulling process can be accomplished by utilizing a potentiometer in the collector circuit, as shown in the circuit below. We wish to find the potentiometer setting, represented by the fraction x of its value connected in series with Re1, that is required for nulling the output offset voltage that results from: (a) Rc1 being 4% higher than nominal and Rc2 4% lower than nominal (b) Q1 having an area 20% larger than that of Q2 Vcc

5) One approach to "offset correction" involves the adjustment of the values of Rc1 and Rc2 so as to reduce the differential output voltage to zero when both input terminals are grounded. This offset- nulling process can be accomplished by utilizing a potentiometer in the collector circuit, as shown in the circuit below. We wish to find the potentiometer setting, represented by the fraction x of its value connected in series with Re1, that is required for nulling the output offset voltage that results from: (a) Rc1 being 4% higher than nominal and Rc2 4% lower than nominal (b) Q1 having an area 20% larger than that of Q2 Vcc

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter12: Power System Controls

Section: Chapter Questions

Problem 12.3P

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