7 pn Diode Applications - Part 3

7 pn Diode Applications - Part 3 - pn-Diode Applications...

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pn-Diode Applications Part 3
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pn – diode applications clipping / clamping circuits power supply voltage multipliers load Line analysis pn – diode circuit analysis
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Clipping Circuits :- are used to eliminate a part of a waveform that lies above or below some reference level, without distorting the remaining part of the alternating waveform !! sometimes referred to as - limiters, amplitude selectors, slicers Clipping circuit will provide overflow protection, which can cause damage to the circuit. The half-wave rectification circuit of the previous section uses clipping action at the ZERO level. If a battery is added in series with the diode, a rectification circuit will clip everything above or below the battery voltage, depending on the orientation of the diode. Two configurations :- Series - diode is in series with the load Parallel - diode is in parallel with the load R v i v o
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Series :- Parallel :- v m > V >> V TH (0.7V) R L v i V DC v o = ? R v i v o = ? v i V v i V v i t v m -v m v i t v m -v m v i t v m -v m v i t v m -v m v i t v m -v m
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Clamping Circuits :- will "clamp" [or shift] a signal to a different DC level !! The network must have a
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This note was uploaded on 01/11/2011 for the course EE 2106 taught by Professor Ytchow during the Spring '07 term at City University of Hong Kong.

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7 pn Diode Applications - Part 3 - pn-Diode Applications...

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