AMPLIFIERS AND ACTIVE DEVICES

Chapter 1 AMPLIFIERS AND ACTIVE DEVICES

Lessons In Electric Circuits Volume III – Semiconductors Book
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Lessons In Electric Circuits Volume III – Semiconductors Book

  • Chapter 1AMPLIFIERS AND ACTIVEDEVICESContents 10,1.1 10,From 10,electric 10,to 10,electronic . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 12,1.2 12,Active 12,versus 12,passive 12,devices . . . . . . . . . . . . . . . . . . . . . . . . . . .3 12,1.3 12,Amplifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 15,1.4 15,Amplifier 15,gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 17,1.5 17,Decibels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 23,1.6 23,Absolute 23,dB 23,scales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 25,1.7 25,Attenuators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 26,1.7.1 26,Decibels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 28,1.7.2 28,T-section 28,attenuator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 29,1.7.3 29,PI-section 29,attenuator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 30,1.7.4 30,L-section 30,attenuator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 30,1.7.5 30,Bridged 30,T 30,attenuator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 32,1.7.6 32,Cascaded 32,sections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 32,1.7.7 32,RF 32,attenuators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231.1From electric to electronicThis third volume of the book series Lessons In Electric Circuitsmakes a departure from theformer two in that the transition between electriccircuits and electroniccircuits is formallycrossed. Electric circuits are connections of conductive wires and other devices whereby theuniform flow of electrons occurs. Electronic circuits add a new dimension to electric circuitsin that some means of controlis exerted over the flow of electrons by another electrical signal,either a voltage or a current.1