semiconductor devices i –limiters electronics technology benchmark companies inc po box 473768...
TRANSCRIPT
• Semiconductor Devices I– Limiters
ELECTRONICS TECHNOLOGY
Benchmark Companies Inc
PO Box 473768
Aurora CO 80047
Diodes
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Objective 2 Basic Diode Configurations in a circuit
1. Series Negative Limiter
2. Series Positive Limiter
3. Parallel Positive Limiter
4. Parallel Negative Limiter
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Series Negative Limiter Negative voltage is limited And positive voltage is passed forward
Output waveformSeries Negative LimiterInput Waveform
Positive Alteration
(Forward Biased)
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Series Negative Limiter Negative voltage is limited And positive voltage is passed forward
Output waveformSeries Negative LimiterInput Waveform
Negative Alteration(Reversed Biased)
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Series Negative Limiter Negative voltage is limited And positive voltage is passed forward
Output waveformSeries Negative LimiterInput Waveform
Positive Alteration(Forward Biased)
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Series Negative Limiter Negative voltage is limited And positive voltage is passed forward
Output waveformSeries Negative LimiterInput Waveform
Complete Cycle
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Series Negative Limiter
Output vs. Input voltage
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Series Positive Limiter Positive voltage is limited And negative voltage is passed forward
Output waveformSeries Positive LimiterInput Waveform
Positive Alteration(Reversed Biased)
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Series Positive Limiter Positive voltage is limited And negative voltage is passed forward
Output waveformSeries Positive LimiterInput Waveform
Negative Alteration(Forward Biased)
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Series Positive Limiter Positive voltage is limited And negative voltage is passed forward
Output waveformSeries Positive LimiterInput Waveform
Positive Alteration(Reversed Biased)
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Series Positive Limiter Positive voltage is limited And negative voltage is passed forward
Output waveformSeries Negative LimiterInput Waveform
Complete Cycle
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Series Positive Limiter
Output vs. Input voltage
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• Series Limiter’s Purpose– Series Limiters allow for the designer to
determine current flow through the R(load)
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Parallel Positive Limiter Positive voltage is limited (diode is a short) And Negative voltage is passed forward
Output waveformParallel Positive LimiterInput Waveform
Positive AlterationDiode is Forward Biased
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Parallel Positive Limiter Positive voltage is limited And Negative voltage is passed forward
Output waveformParallel Positive LimiterInput Waveform
Negative AlterationDiode is Reversed Biased
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Parallel Positive Limiter Positive voltage is limited And Negative voltage is passed forward
Output waveformParallel Positive LimiterInput Waveform
Positive AlterationDiode is Forward Biased
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Parallel Positive Limiter Positive voltage is limited And negative voltage is passed forward
Output waveformParallel Positive LimiterInput Waveform
Complete Cycle
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Parallel Positive Limiter
Output vs. Input voltage
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Parallel Negative Limiter Negative voltage is limited And positive voltage is passed forward
Output waveformParallel Negative LimiterInput Waveform
Positive AlterationDiode is Reverse Biased
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Output waveformInput Waveform
Negative AlterationDiode is Forward Biased
Parallel Negative Limiter Negative voltage is limited And positive voltage is passed forward
Parallel Negative Limiter
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Output waveformInput Waveform
Parallel Negative Limiter Negative voltage is limited And positive voltage is passed forward
Parallel Negative Limiter
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Positive AlterationDiode is Reverse Biased
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Output waveformInput Waveform
Complete Cycle
Parallel Negative Limiter Negative voltage is limited And positive voltage is passed forward
Parallel Negative Limiter
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Parallel Negative Limiter
Output vs. Input voltage
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• Parallel Limiter’s Purpose – Parallel Limiters allow for the designer to
determine Voltage drop across R(load).
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• Parallel Limiter’s Purpose – Parallel Limiters allow
for the designer to determine Voltage drop across R(load).
• Series Limiter’s Purpose– Series Limiters allow for the
designer to determine current flow through the R(load)
Diode Limiter Summary
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End of Limiter Lesson
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