MATLAB

I learned how to create Matrices and basic commands.  I also learned how to use a matrix to solve KVL and KCL problems that have multiple loops by create 2 or more equations with the variable I1,I2,.....In.

MOSFET/voltage current characteristics

  After constructing the circuit for the MOSFET lab  and testing the voltage starting from zero we found the voltage threshold to be 2v.  That is the current began to change at 2v.  For voltage characteristics lab we began with a resistance of 100 ohms.  Here is a table of the results.

MOSFET Table

	voltage applied (V)	voltage measured (V)	current measured (mA)	resistance
1	0	0	0	100
2	0.4	0	0
3	0.8	0	0
4	1.2	0	0
5	1.6	0	0
6	2	0.204	1.8
7	2.1	0.513	5.1
8	2.2	1.1	11
9	2.3	1.99	20.5
10	2.4	3.243	33
11	2.5	4.4	44.9
12	2.6	4.62	47.3
13	2.7	4.68	47.9
14	3.1	4.7	48.7
15	3.5	4.77	49
16	3.9	4.79	49.1
17	4.3	4.8	49.2
18	4.7	4.8	49.2
19	5	4.81	49.3

Voltage current characteristics

	waveform generator Voltage (V)	measured Voltge (V)	measured current  (mA)	resistance
1	0.2	0.1966	1.74	98.2
2	0.4	0.39	3.49
3	0.6	0.585	5.22
4	0.8	0.781	7
5	1	0.975	8.73
6	1.2	1.181	10.47
7	1.4	1.376	12.24
8	1.6	1.572	13.98
9	1.8	1.766	15.74
10	2	1.956	17.4

Mean=28.11

Standard Deviation=21.65

Median= 38.95

Mean= 28.11

Week 1 day 1 Simple Circuits Lab

Today was very exciting!  We used a multimeter, breadboard, wires and banana clips to test the rows and columns of the breadboard.  We found that rows are closed circuit and jumping columns are open.  The resistance here was less than 1 ohm for the closed circuit and close to infinity resistance.