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Transcript
BJT Transistors and Characteristics
ELEC 121
Introduction to BJT’s
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Introduction to BJT’s
BJT Specification Sheets
BJT Characteristic Family of Curves
BJT Circuit Simulation – DC Bias
BJT Bias Circuits
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Fixed-Bias Circuit
Emitter-Stabilized Bias Circuit
Collector-Emitter Loop
Voltage Divider Bias Circuit
DC Bias with Voltage Feedback
Miscellaneous Bias Circuits
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The NPN BJT
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3
NPN Biasing
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Example of Transistor Bias
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Input Characteristics of a Common-Base Amp
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Output Characteristics of a Common-Base Amp
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7
Voltage Gain in a PNP Transistor
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8
NPN CE Amplifier Characteristics
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Transistor Specifications
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Circuit to display Characteristic Curves
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11
Collector Characteristic Curves
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12
Characteristic Curves Secondary Effects
Common-emitter characteristics displaying exaggerated secondary effects
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13
Maximum Power Curve for BJT
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14
PNP Transistor
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PNP Characteristics
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PSpice Simulation for Family of Curves
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DC Sweep Primary Sweep
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DC Sweep Secondary Sweep
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Probe Output for Family of Curves
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20