Version 4
SHEET 1 880 680
WIRE 288 -176 64 -176
WIRE 528 -176 288 -176
WIRE 640 -176 528 -176
WIRE 64 -112 64 -176
WIRE 288 -112 288 -176
WIRE 288 0 288 -32
WIRE 288 16 288 0
WIRE 64 32 64 -32
WIRE 64 32 -80 32
WIRE 112 32 64 32
WIRE 128 32 112 32
WIRE 240 32 208 32
WIRE 64 48 64 32
WIRE -80 64 -80 32
WIRE -304 144 -336 144
WIRE -176 144 -304 144
WIRE -80 144 -80 128
WIRE -80 144 -176 144
WIRE 64 160 64 128
WIRE 64 160 0 160
WIRE 128 160 64 160
WIRE 240 160 208 160
WIRE 288 160 288 112
WIRE 288 160 240 160
WIRE 368 160 288 160
WIRE 480 160 432 160
WIRE 512 160 480 160
WIRE -80 176 -80 144
WIRE 64 192 64 160
WIRE 288 208 288 160
WIRE -336 288 -336 144
WIRE -80 288 -80 240
WIRE 64 288 64 272
WIRE 64 288 -80 288
WIRE 112 288 64 288
WIRE 128 288 112 288
WIRE 240 288 208 288
WIRE 288 336 288 304
WIRE 512 336 512 160
WIRE -176 352 -176 144
WIRE 0 352 0 160
WIRE 64 352 64 288
WIRE 288 352 288 336
WIRE 640 384 640 -176
WIRE -336 496 -336 368
WIRE -176 496 -176 432
WIRE -176 496 -336 496
WIRE 0 496 0 416
WIRE 0 496 -176 496
WIRE 64 496 64 432
WIRE 64 496 0 496
WIRE 288 496 288 432
WIRE 288 496 64 496
WIRE 512 496 512 416
WIRE 512 496 288 496
WIRE 640 496 640 464
WIRE 640 496 512 496
WIRE 288 528 288 496
FLAG 288 528 0
FLAG 240 160 Drain
FLAG 288 0 Sp
FLAG 288 336 Sn
FLAG 112 32 Gp
FLAG 112 288 Gn
FLAG 528 -176 +Ub
FLAG 480 160 out
FLAG -304 144 line_in
SYMBOL pmos 240 112 M180
SYMATTR InstName M2
SYMATTR Value IRF9630
SYMBOL Misc\\EuropeanResistor 272 -128 R0
SYMATTR InstName R1
SYMATTR Value 1R
SYMBOL Misc\\EuropeanResistor 272 336 R0
SYMATTR InstName R2
SYMATTR Value 1R
SYMBOL Misc\\EuropeanResistor 224 16 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 100R
SYMBOL Misc\\EuropeanResistor 224 272 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 100R
SYMBOL Misc\\EuropeanResistor 224 144 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R5
SYMATTR Value 10K
SYMBOL voltage 640 368 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 100V
SYMBOL cap -16 352 R0
WINDOW 3 -48 61 Left 2
SYMATTR Value 10µF
SYMATTR InstName C1
SYMBOL Misc\\EuropeanResistor 48 32 R0
SYMATTR InstName R6
SYMATTR Value 1.5meg
SYMBOL Misc\\EuropeanResistor 48 176 R0
SYMATTR InstName R7
SYMATTR Value 1.5meg
SYMBOL Misc\\EuropeanResistor 48 -128 R0
SYMATTR InstName R8
SYMATTR Value 180k
SYMBOL Misc\\EuropeanResistor 48 336 R0
SYMATTR InstName R9
SYMATTR Value 180k
SYMBOL cap -96 64 R0
SYMATTR InstName C2
SYMATTR Value 100n
SYMBOL cap -96 176 R0
SYMATTR InstName C3
SYMATTR Value 100n
SYMBOL Misc\\EuropeanResistor -192 336 R0
SYMATTR InstName R10
SYMATTR Value 1Meg
SYMBOL res 496 320 R0
SYMATTR InstName R11
SYMATTR Value 16R
SYMBOL cap 432 144 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C4
SYMATTR Value 470µ
SYMBOL voltage -336 272 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
WINDOW 3 -11 279 Left 2
SYMATTR Value SINE(0 {Uin} 400)
SYMATTR InstName V2
SYMBOL nmos 240 208 R0
SYMATTR InstName M3
SYMATTR Value IRF630
TEXT 56 552 Left 2 !.tran 0 25m 5m 50µ
TEXT 520 288 Left 2 ;Speaker
TEXT -328 -112 Left 2 !.meas Pout avg V(out)*I(R11)
TEXT -328 -136 Left 2 !.step param Uin 0.1 3 .1
TEXT -328 -72 Left 2 ;View -> Spice Error Log\nRight-mouse-click -> Plot .step'ed .meas data
TEXT -328 -184 Left 2 !.lib pwrmos.lib