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Assume b >> 1, Vp = 0.7 volts, all npn junction areas identical, and all pnp junction areas are BE(on) identical. VCC = 12 volts. Also assume IREF = 0.5 mA and Circuit 3 current, I3 = 50 µA. Compute:

Assume b >> 1, Vp = 0.7 volts, all npn junction areas identical, and all pnp junction areas are BE(on) identical. VCC = 12 volts. Also assume IREF = 0.5 mA and Circuit 3 current, I3 = 50 µA. Compute:

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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BJT Current Mirror System R2 CIRCUIT 1 Q5 IREF = 0.5 mA Q4 R1 Q6 CIRCUIT 2 CIRCUIT 3 VcC Q1 Q2 Q3 12 Volts 12 13 = 50 uA Assume b >> 1, VBE(on) = 0.7 volts, all npn junction areas identical, and all pnp junction areas are identical. VCC = 12 volts. Also assume IREF = 0.5 mA and Circuit 3 current, 13 = 50 µA. Compute: (a) R1 (b) 12 (c) R2 = _(Think Widlar!!!) -W-
Transcribed Image Text:BJT Current Mirror System R2 CIRCUIT 1 Q5 IREF = 0.5 mA Q4 R1 Q6 CIRCUIT 2 CIRCUIT 3 VcC Q1 Q2 Q3 12 Volts 12 13 = 50 uA Assume b >> 1, VBE(on) = 0.7 volts, all npn junction areas identical, and all pnp junction areas are identical. VCC = 12 volts. Also assume IREF = 0.5 mA and Circuit 3 current, 13 = 50 µA. Compute: (a) R1 (b) 12 (c) R2 = _(Think Widlar!!!) -W-
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