ecelab1 report almost

ecelab1 report almost - Lab#1: Solid State Diodes Testing...

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Primary Author: Berk Bozoklar Lab Partners: Joshua Dean Course and Section #: ECE 2115 Section 31 Instructor Name: Mazdak Taghioskoui Due Date: January 26, 2011 1. Introduction:
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The purpose of this experiment was to understand the i-v characteristic curve of different types of diodes. In order to achieve this, first the forward and reverse resistance of different types of diodes was determined by using Keithley Model 175. Then the current flow was tested on a test circuit to get the saturation current values and also the voltage drop values were obtained by changing the values of the current source to see the have a precise idea about the i-v characteristic of the diode. 2. Background information: Equation Ohm's Law Equation I S = Saturation current V T = Thermal Voltage (25mV) Equation Diode Equation [1] Figure i-v Characteristic of Diode [2] 2
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3. Methods and Materials: Equipment Agilent E3631A Triple Output DC Power Supply (1) Germanium Diode (1N34A), D1 Keithley Multimeter - Model 175 (1) Series Silicon Diode (1N4002), D2 Breadboard (1) Zener Diode (1N752A), VR1 PSPICE (1) Gallium Arsenide Phosphide (GaAsP) Light Emitting Diode (LED) (MV5753), DS1 Tektronix Model 571 (1) 1 MΩ Resistor, R1 (1) 1 Ω Resistor, R2 Table 4. Experimental Procedures: The best way to explain the experimental procedures is to divide it into four parts just as it was done in lab manual. In this part of the lab, it was asked to measure and record the forward and the reverse direction resistances of the 4 diodes referred in Table 1 by using the Keithley Multimeter 175. Also it was asked to calculate the ratio (R r /R f ) for each diode. Lastly for this part it was asked to carry out a diode test by using Keithley Multimeter 175, which
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ecelab1 report almost - Lab#1: Solid State Diodes Testing...

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