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Measurement/Evaluation and Remote Testing of Integrated Circuit Design Experiments Using LabView. U. J. Strasilla
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Measurement/Evaluation and Remote Testing of Integrated Circuit Design Experiments Using LabView U. J. Strasilla Department of Electrical Engineering, San Jose State University, San Jose, California
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Abstract • Our experience in virtual instrumentation in our Integrated Circuits Experiments Lab • Our effort to make this lab and its experiments accessible to the outside world via the internet using LabView protocols
IC Design Lab Experiments • RC Single Time Constant Networks • Current Mirror • Differential Amplifier • Transconductance Amplifier • Feedback Amplifier • Op Amp • Individual Project
Topology of feedback amplifier using LM3080 Transconductance Amplifier
Feedback amplifier circuit reconfigured to allow feedback analysis
Feedback equations for idealizedFeedback Network Af = A / (1 + A β) (1) Rof = Ro / (1+A β) (2) Rif = Rif (1 + A β) (3)
Venn Diagram for Gain, Input Impedance and Output Impedance as a function of R1 and R2
Measurememt of Af Af = Vo/Vi
Measurememt of Rif Rif = Rins/(Vo(1)/Vo(2)-1)
Measurement of Rof Rof = Rl’Rl(g-1)/(Rl-gRl’) where g=Vo(1)/Vo(2) and Rl’=Rl//Rp
EE124 Lab at SJSULabView Workshop in the IC Design Lab http://e258cam.engr.sjsu.edu
RC Network for Time Constant and Cutoff Frequency Measurement http://e258-03.engr.sjsu.edu/Relay.html
Summary Demo of Design Experiment using: • Traditional Design Methods • Hand Design • Simulation • Real Lab Test LabView Aids • Tutorials • Quizzes • Design Check • Production Test • Remote Testing
Next Step • Resolve LabView Problems with transportability • Increase Number of Remote Test Stations • One test station with matrix card for remote design • Remote Lab Workshops • Collaboration with other universities • Obtain funding (NSF Grants?)
Remote Test of Feedback Amplifier http://e258-10.engr.sjsu.edu/FeedbackFront.html Demo of Remote Relay Switch http://e258-03.engr.sjsu.edu/Relay.html
EE124 Lab Website http://www.engr.sjsu.edu/ee124lab