This document contains information about assignments for a class including: 1) A circuit with a pulse voltage source, MOSFET, and load resistor that is simulated to analyze the output voltage waveform. 2) A second circuit with a pulse voltage source, resistor, inductor, and capacitor that is analyzed to determine the average power. 3) A third circuit that is analyzed using AC analysis to determine the average power passing through a resistor between 300Hz and 18kHz.

1. CSCE 585 FALL 2014
ASSIGNMENT 1
OLADIRAN OLALEYE
Ogo8842
(2.2) Frequency (f) = 1 / Period (T) = 1 / 20 ms = 50 Hertz. In the waveform,
current also repeats with a period of 20ms (50 Hertz).
From the waveform, the peak absolute value current is about 30u amps.
(2.3) avgpwr= 3.3417E-07 from= 0.0000E+00 to= 2.0000E-02
(3.2.2repeat): Frequency = no No frequency. Justified since th current is
rectified.
(3.2.3repeat): avgpwr= 4.5000E-01 from= 0.0000E+00 to= 2.0000E-02
(3.3) avgpwr= 4.5000E-01 from= 3.0000E+02 to= 1.8000E+04
The circuit is a low-pass filter and blocks AC but passes DC to the Rload
resistor. Hence, the reason why the voltage across the resistor is rectified.

2. *Assignment 1/Question 1 Netlist/ogo8842
.INCLUDE 'tsmc18.sp'
VVin1 Vin 0 PULSE(0 1.8 0u 10n 10n 200u 400u)
V2 nVR 0 1.8V
MMOS Vout Vin 0 0 nfet L=0.18u W=0.36u
RRes nVR Vout 25kohm
CCap Vout 0 4nF
.TRAN 1ns 800us
.PROBE TRAN V(Vin) V(Vout)
.OPTIONS list node probe post
.END

4. *Assignment 1/Question 2 Netlist/ogo8842
VVin nVR 0 PULSE(0 1.8 0u 50n 50n 10m 20m)
R1 nVR nRL 10kohm
LL1 nRL nLC 5H
CC1 nLC 0 2nF
.TRAN 1ns 20ms
.PROBE TRAN I(R1)
.MEASURE TRAN avgpwr AVG power from=0s to=20m
.PRINT avgpwr
.OPTIONS list node probe post
.END

5. *Assignment 1/Question 3 Netlist/ogo8842
VV1 2 1 ac 30V sin
VV2 1 0 dc 30V
LL1 2 3 150mH
LL2 3 4 200mH
RR1 4 0 2kohm
CC1 3 0 150uF
.ac lin 40 300Hz 18kHz
.PROBE ac V(4,0)
.MEASURE ac avgpwr AVG power from=300Hz to=18kHz
.PRINT avgpwr
.OPTIONS list node probe post
.END

6. *Assignment 1/Question 3.2repeat Netlist/ogo8842
VV1 2 1 ac 30V sin
VV2 1 0 dc 30V
LL1 2 3 150mH
LL2 3 4 200mH
RR1 4 0 2kohm
CC1 3 0 150uF
.TRAN 1ns 20ms
.PROBE TRAN I(RR1)
.MEASURE TRAN avgpwr AVG power from=0s to=20m
.PRINT avgpwr
.OPTIONS list node probe post
.END

7. *Assignment 1/Question 4 Netlist/ogo8842
Vin 1 0 AC 1 SIN(0V 1V 15kHz)
*Vout nR3Z4, nR1Z2 0V
LZ1 nZ1R1 1 100mH
LR1 nR1Z2 nZ1R1 10oHm
LZ2 nZ2R2 nR1Z2 100mH
LR2 nR20 nZ2R2 10oHm
LZ3 nZ3R3 1 100mH
LR3 nR3Z4 nZ3R3 10oHm
LZ4 nZ4R4 nR3Z4 100mH
LR4 nR40 nZ4R4 10oHm
.TRAN 1ns 10us
.PROBE TRAN V(1, 0) V(nR3Z4, nR1Z2)
.OPTIONS list node probe post
.END