labreport 7 (july 7)

labreport 7 (july 7) - EE 3221 Electronics II Laboratory...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
EE 3221 Electronics II Laboratory Suhas Patel Evan Trapani (Partner) 437-93-4360 July 7, 2004 Lab 7 (Experiment 20) Current Mirrors and Active Loads
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
EE 3221 Suhas Patel July 7, 2004 Objective: To build discrete versions of analog circuits ordinarily founding integrated circuits. 1.) Figure 1 Plot the output voltage as a function of the positive supply voltage. Is the slope of this graph exactly 45 degrees? Yes, it is. At what supply voltage does the graph abruptly change? Why? 4.2 V, because the transistor is no longer operating in the constant current region.
Background image of page 2
2.) Figure 2 Observe the output voltage with a scope, and vary the current in the bottom resistor by changing the negative supply. As the negative supply is varied between -6 and -5V, the output voltage is stable between 0 and 5V. For all other negative supply voltages, the output is unstable and drops below 0V. Can you balance the output between 0 and 5V? Yes, the output is between 0 and 5V for negative supply voltages between -6 and -5V.
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/01/2012 for the course EE 3221 taught by Professor Staff during the Fall '08 term at LSU.

Page1 / 6

labreport 7 (july 7) - EE 3221 Electronics II Laboratory...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online