Semiconductor Electronics by Worked Example

Tuned circuits and high-frequency transistor amplifiers 52 2.11 Directly coupled amplifier 23 2.12 Frequency-response curve of Re-coupled amplifier 24 5.1 Relationship between Q-factor and bandwidth 52 2.13 Exercises 25 5.2 Tuned-collector amplifier 53 5.3 Skin effect and dynamic impedance 54 3 Equivalent circuits of small-signal, low-frequency 5.4 Parallel tuned circuit as amplifier load impedance 54 5.5 Radio-frequency amplifier 55 amplifiers 29 5.6 Q-factor of series tuned circuit 55 3.1 Common-base equivalent-T circuit 29 5.7 Hybrid-7t equivalent circuit 56 3.2 Common-emitter equivalent-T circuit 29 5.8 Exercises 58 v 6 Field-effect transistors 60 8.8 Astable multivibrator 90 6.1 Junction FET and common-source amplifier 60 8.9 Astable multivibrator with separate base and 6.2 Depletion and enhancement type insulated gate collector supply•voltages 91 FETs 61 8.10 Blocking oscillator 92 6.3 Mutual conductance of an FET 63 8.11 Exercises 93 6.4 Equivalent circuit of common-source amplifier 64 6.5 Pinch-off region of junction fET 64 9 Wave-shaping and computing circuits 97 6.6 Voltage gain and input resistance of common- 9.1 Differentiating and integrating circuits source amplifier 65 9.2 Graphical analysis of RC circuits 98 6.7 Voltage gain and upper cut-off frequency of 9.3 Monostable multivibrator 99 common-source amplifier 66 9.4 Bistable multivibrator 100 6.8 Source-follower amplifier 67 9.5 Schmitt-trigger circuits 102 6.9 Voltage gain of common-drain amplifier 68 9.6 Operational amplifier as an inverter 103 6.10 Common-gate amplifier 69 9.7 Operational amplifier as a summer and integrator 104 6.11 Voltage gain, input and output impedances of 9.8 Exercises 104 source-follower 70 6.12 Exercises 71 10 Boolean algebra and logic circuits 107 7 Negative feedback 74 10.1 Diode logic gates 107 7.1 Gain of amplifier with negative feedback 74 10.2 Transistor logic gates 107 7.2 Effect of negative feedback on amplifier input-10.3 Venn diagrams 108 impedance 74 10.4 Logic design from truth table 109 7.3 Effect of negative feedback on amplifier output- 10.5 De Morgan's theorems 109 impedance 75 10.6. Resistor-transistor logic 110 7.4 Shunt-series negative feedback 76 10.7 Logic design from Boolean expression 111 7.5 Emitter-follower ampl ifier 77 10.8 Karnaugh maps 112 7.6 Gain stabilisation by negative feedback 78 10.9 Simplification of Boolean expressions 112 7.7 Negative feedback in an integrated-circuit 10.10 Diode-transistor and transistor-transistor logic amplifier 78 gates 113 7.8 Instability in feedback amplifier 79 10.11 Use of logic gates 114 7.9 Compound negative feedback 80 10.12 Exercises 115 7.10 Exercises 80 11 Principles and applications of thyristors 117 8 Transistor oscillators 83 11.1 Operation of the thyristor 117 8.1 Amplifier gain with positive feedback 83 11.2 Two-transistor analogy of thyristor and a.c. 8.2 Tuned-collector oscillator 83 control of gate 118 8.3 Colpitts oscillator 84 11.3 Thyristor inverse parallel a.c. controller 119 8.4 Hartley oscillator 85 11.4 Pulse firing of thyristors 120 8.5 h-parameter analysis of common-emitter 11.5 Thyristor speed control 120 oscillator 86 11.6 Spurious firing of thyristors 121 8.6 Wien-bridge oscillator 87 11.7 Triac theory and application 122 8.7 Phase-shift oscillator 89 11.8 Exercises 123 vi Front Matter....Pages i-xi Semiconductor diodes, rectifiers and stabilisers....Pages 1-12 Voltage and current common-emitter amplifiers....Pages 13-28 Equivalent circuits of small-signal, low-frequency amplifiers....Pages 29-39 Transistor power amplifiers....Pages 40-51 Tuned circuits and high-frequency transistor amplifiers....Pages 52-59 Field-effect transistors....Pages 60-73 Negative feedback....Pages 74-82 Transistor oscillators....Pages 83-96 Wave-shaping and computing circuits....Pages 97-106 Boolean algebra and logic circuits....Pages 107-116 Principles and applications of thyristors....Pages 117-124 Photoelectric devices and solid state manufacturing techniques....Pages 125-133 Back Matter....Pages 134-136