CE Amplifiers
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Common Emitter Design Equations
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Common: Alter constants if required
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Beta100
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Vforward0.7
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IC Max0.5
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Common: Select Vcc, Vc, Gain, R1
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Input (Dk Green)
SuggestedUsedStatus
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Vcc1515
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Vc7.57.5
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Gain55
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R1200200
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Type 1: Select IC
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SuggestedUsed
Overrides (Gray)
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IC0.20.40.2
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RC37.537.5Check Type 1
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RE7.57.529.33333333<<757.5
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VE1.51.5
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VB2.22.2Actuals
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R234.37534.375Gain5Vb2.117194183Ie0.1889592244REtotal32.8685259
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R2 (alt)36.0262008736.02620087Vb (alt)2.2Ie (alt)0.2REtotal (alt)34.375
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Type 2: Select RC
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SuggestedUsed
Overrides (Gray)
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RC16001600
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IC0.00468750.0046875Check Type 2
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RE32032029.33333333<<32320
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VE1.51.5
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VB2.22.2Actuals
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R234.37534.375Gain5Vb2.19798518Ie0.004681203688REtotal34.33811335
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R2 (alt)34.4119659834.41196598Vb (alt)2.2Ie (alt)0.0046875REtotal (alt)34.375
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Instructions:
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Only input dark green or gray cells
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Fill in common parameters. If an input has a purple suggested field, you may leave it blank.
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The Status column shows green or red for parameters it checks
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Go to the Type you want (IC or RC selection) and fill that out
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The "check" boxes should show green
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If you want to try standard resistor values instead of the computed ones, use the gray override boxes
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You can check the overall effect in the mauve boxes to the right.
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