Memo4Final - MEMORANDUM TO: Scott Peterson FROM: Stephanie...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: MEMORANDUM TO: Scott Peterson FROM: Stephanie Duy Robert England DATE: November 14, 2007 SUBJECT: Discussion of BJT Current Sinks and Sources For partial fulfillment of the coursework in ECE 342, three BJT current sinks and a current source were constructed and tested. The current sinks were built with 2N2222 transistors, and the current source used 2N3906. Table 1 contains the output characteristics of the four circuits. Table 1: Current Sink/Source Output Characteristics Configuration Output Current Range Output Voltage Range Output Resistance Load Resistance Range 1 Simulated 1.527 mA to 1.531 mA 1.905 V to 10 V 2.02 MΩ 0 Ω to 5.3 kΩ Experimental 1.536 mA to 1.543 mA 2.324 V to 9.270 V 992 kΩ 500 Ω to 5 kΩ 2 Simulated 1.827 mA to 1.992 mA 0.5015 V to 10 V 57.6 kΩ 0 Ω to 5.2 kΩ Experimental 1.511 mA to 1.881 mA 1.679 V to 9.951 V 22.4 kΩ 50 Ω to 5.6 kΩ 3 Simulated 79.72 μA to 81.53 μA 0.4342 V to 10 V 5.28 MΩ 0 Ω to 120 kΩ Experimental 75.56 μA to 78.44 μA 0.1908 V to 0....
View Full Document

This note was uploaded on 04/19/2008 for the course ECP 342 taught by Professor Peterson during the Fall '07 term at University of Maine Orono .

Ask a homework question - tutors are online