Active Circuits

Lab 4:

Diode Forward Current
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Finds diode forward current characteristic.

Diode Current with Series Resistor
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Finds current through diode as R1 changes, and shows the effect of a DMM.

Half Wave Filtered Power Supply
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Demonstrates loading in a half wave, filtered power supply.

Frequency Doubling and Nonlinear Effects in Diodes
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Demonstrates frequency doubling and other nonlinear effects in a nonlinearly driven diode..

Lab 5:

Gate Voltage Transfer Characteristic
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Plots the drain current, the transconductance, and the source resistance as a function of the gate voltage.

Drain Source Voltage Output Characteristic
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Plots the Drain current vs. the Drain-Source Voltage.

Simple Current Source
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Plots the current and various voltages as a function of the source voltage for a simple current source.

Current Source Comparison
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Compares an externally-biased JFET current source to a self-biased JFET current source.

Simple Source Follower
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A simple source follower circuit.

Active Load Source Follower
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A source follower with an active load.

Active Load Source Follower
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A source follower with an active load and with an offset eliminating resistor.

Lab 6

Voltage Amplifier
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A simple voltage amplifier with a gain of a little less than five..

Bypassed Source Resistors Amplifier
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Compares the performance of a bypassed-source resistor amplifier with a normal amplfier.

Differential Amplifier
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A differential amplifier driven with both a differential and a common mode signal..

Differential Amplifier with Current Source
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A differential amplifier with a current source. The amp is driven with both a differential signal and a common mode signal.

Linearized JFET
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The gate voltage vs. drain current characteristics of a normal and linearized JFET.

Linearized Attenuator
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A linearized, voltage-controlled attenuator compared with a nonlinearized attenuator.