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EE350 Lab #3: 3 stage Audio Amplifier with MOSFET
*AC SIGNAL

V_SIG 1 0 AC 1 SIN(0 500mV 2K)
R_SIG 2 1 50

*DC VOLTAGE SOURCE
VDC 5 0 15V

*VOLTAGE DIVIDER
RD_1 3 2 5.44
RD_2 0 3 556

*BLOCKING CAPS - DM: DIVIDER TO MOSFET - MB: MOSFET TO BJT - BL:BJT TO LOAD
C_DM 4 3 100uF
C_MB 8 6 100uF
C_BL 11 12 100uF

*TRANSISTOR PARAMETERS
.model MOD1 NMOS(VTo=2.474 RS=1.68 RD=0 IS=1E-15 KP=0.296 LAMBDA=267E-6)
.model Q2N4401 NPN(BF=325, VA=100, TF=1NS)

*MOSFET AMPLIFIER
RM_B1 5 4 2.5MEGA
RM_B2 4 0 460K
MFET 6 4 0 0 MOD1 L=1u W=1u
RM_D 5 6 702

*BJT AMPLIFIER

RB_B1 5 8 1.92K
RB_B2 8 0 2.32K
QBJT 5 8 11 Q2N4401
RB_E 11 0 212

*LOAD
R_LOAD 12 0 8

*AC ANALYSIS
.AC DEC 5 100 10K

*TRANSIENT ANALYSIS
.TRAN 0.01MS 2MS 1.5MS 0.01MS

*PROBE
.PROBE

.END