Version 4
SHEET 1 1688 680
WIRE -1344 -544 -1344 -576
WIRE -1344 -528 -1344 -544
WIRE -432 -464 -432 -496
WIRE -1344 -448 -1344 -464
WIRE -1184 -416 -1184 -464
WIRE -1024 -416 -1024 -464
WIRE -864 -416 -864 -464
WIRE -752 -416 -752 -464
WIRE -48 -416 -192 -416
WIRE 112 -416 112 -464
WIRE 112 -416 -48 -416
WIRE -192 -384 -192 -416
WIRE 112 -384 112 -416
WIRE -432 -368 -432 -384
WIRE -1184 -336 -1264 -336
WIRE -1024 -336 -1184 -336
WIRE -864 -336 -1024 -336
WIRE -752 -336 -864 -336
WIRE 0 -272 -32 -272
WIRE 112 -272 112 -304
WIRE 112 -272 64 -272
WIRE -480 -256 -544 -256
WIRE -432 -256 -432 -288
WIRE -432 -256 -480 -256
WIRE -416 -256 -432 -256
WIRE -192 -256 -192 -304
WIRE -192 -256 -224 -256
WIRE -144 -256 -192 -256
WIRE -48 -256 -48 -336
WIRE -48 -256 -80 -256
WIRE -480 -224 -480 -256
WIRE -1360 -192 -1360 -240
WIRE -1184 -192 -1184 -240
WIRE -1024 -192 -1024 -240
WIRE -864 -192 -864 -240
WIRE -752 -192 -752 -240
WIRE -416 -160 -432 -160
WIRE -192 -160 -224 -160
WIRE -480 -128 -480 -160
WIRE -432 -128 -432 -160
WIRE -432 -128 -480 -128
WIRE -192 -96 -192 -160
WIRE -32 -96 -32 -272
WIRE -32 -96 -192 -96
WIRE -192 -80 -192 -96
WIRE -1360 -64 -1360 -112
WIRE -1264 -64 -1264 -336
WIRE -1264 -64 -1360 -64
WIRE -1184 -64 -1184 -112
WIRE -1184 -64 -1264 -64
WIRE -1024 -64 -1024 -112
WIRE -1024 -64 -1184 -64
WIRE -864 -64 -864 -112
WIRE -864 -64 -1024 -64
WIRE -752 -64 -752 -112
WIRE -752 -64 -864 -64
WIRE 112 -48 112 -272
WIRE 112 -48 -160 -48
WIRE 112 -32 112 -48
WIRE -432 48 -432 -128
WIRE -192 48 -192 -16
WIRE -192 48 -432 48
WIRE 112 48 -192 48
WIRE -432 80 -432 48
FLAG -432 -496 0
FLAG -432 80 0
FLAG -544 -256 verr1
FLAG 112 -544 0
FLAG -1344 -448 0
FLAG -1344 -576 ac
FLAG -1024 -336 0
FLAG -1184 -240 Rpz
FLAG -1024 -240 Rled
FLAG -864 -240 G
FLAG -864 -464 K
FLAG -1024 -464 Cpole
FLAG -1184 -464 Czero
FLAG -752 -240 fpole
FLAG -1360 -240 fzero
FLAG -752 -464 RU
SYMBOL res -448 -272 M180
WINDOW 0 36 76 Left 0
WINDOW 3 36 40 Left 0
SYMATTR InstName Rpullup1
SYMATTR Value {Rpullup}
SYMBOL res 128 -400 M0
WINDOW 0 -94 23 Left 0
WINDOW 3 -106 59 Left 0
SYMATTR InstName Rupper1
SYMATTR Value {Rupper}
SYMBOL res 128 -48 M0
SYMATTR InstName Rlower1
SYMATTR Value 2.5k
SYMBOL res -176 -400 M0
WINDOW 0 -65 33 Left 0
WINDOW 3 -72 60 Left 0
SYMATTR InstName Rled1
SYMATTR Value {Rled}
SYMBOL cap 64 -256 M270
WINDOW 0 32 32 VTop 0
WINDOW 3 0 32 VBottom 0
SYMATTR InstName Czero1
SYMATTR Value {Czero}
SYMBOL cap -464 -224 M0
SYMATTR InstName Cpole1
SYMATTR Value {Cpole}
SYMBOL voltage -432 -368 R180
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 5
SYMBOL res -64 -432 R0
SYMATTR InstName R1
SYMATTR Value {Rpz}
SYMBOL cap -80 -272 R90
WINDOW 0 0 32 VBottom 0
WINDOW 3 32 32 VTop 0
SYMATTR InstName C1
SYMATTR Value {Cpz}
SYMBOL bv 112 -448 R180
WINDOW 0 24 104 Left 0
WINDOW 3 -188 8 Left 0
SYMATTR InstName B1
SYMATTR Value V=V(ac)+28.00004
SYMBOL TL431 -176 -80 M0
SYMATTR InstName U1
SYMBOL voltage -1344 -560 R0
WINDOW 123 11 -41 Left 0
WINDOW 39 0 0 Left 0
WINDOW 3 11 -13 Left 0
SYMATTR Value2 AC 1
SYMATTR Value ""
SYMATTR InstName V2
SYMBOL voltage -1184 -432 R0
WINDOW 123 11 -41 Left 0
WINDOW 39 0 0 Left 0
WINDOW 3 -77 119 Left 0
SYMATTR Value {Czero*10000000000}
SYMATTR InstName V3
SYMBOL voltage -1024 -432 R0
WINDOW 123 11 -41 Left 0
WINDOW 39 0 0 Left 0
WINDOW 3 24 119 Left 0
SYMATTR Value {Cpole*10000000000}
SYMATTR InstName V4
SYMBOL voltage -864 -432 R0
WINDOW 123 11 -41 Left 0
WINDOW 39 0 0 Left 0
WINDOW 3 24 44 Left 0
SYMATTR Value {K}
SYMATTR InstName V5
SYMBOL voltage -1184 -208 R0
WINDOW 123 11 -41 Left 0
WINDOW 39 0 0 Left 0
WINDOW 3 24 44 Left 0
SYMATTR Value {Rpz}
SYMATTR InstName V6
SYMBOL voltage -1024 -208 R0
WINDOW 123 11 -41 Left 0
WINDOW 39 0 0 Left 0
WINDOW 3 24 44 Left 0
SYMATTR Value {Rled}
SYMATTR InstName V7
SYMBOL voltage -864 -208 R0
WINDOW 123 11 -41 Left 0
WINDOW 39 0 0 Left 0
WINDOW 3 24 44 Left 0
SYMATTR Value {G}
SYMATTR InstName V8
SYMBOL voltage -1360 -208 R0
WINDOW 123 11 -41 Left 0
WINDOW 39 0 0 Left 0
WINDOW 3 24 44 Left 0
SYMATTR Value {Fzero}
SYMATTR InstName V9
SYMBOL voltage -752 -208 R0
WINDOW 123 11 -41 Left 0
WINDOW 39 0 0 Left 0
WINDOW 3 24 44 Left 0
SYMATTR Value {Fpole}
SYMATTR InstName V10
SYMBOL voltage -752 -432 R0
WINDOW 123 11 -41 Left 0
WINDOW 39 0 0 Left 0
WINDOW 3 40 44 Left 0
SYMATTR Value {Rupper}
SYMATTR InstName V11
SYMBOL MOC8101 -320 -208 M0
SYMATTR InstName U2
TEXT -944 -664 Left 0 !;ac oct 100 10 1meg
TEXT -944 -632 Left 0 !.include application.lib
TEXT -944 -600 Left 0 !.tran 0 5m 1u
TEXT 400 -472 Left 0 !.param Vout = 28\n \n.param Rupper = (Vout -2.5)/.001\n.param fc = 10.0k\n.param pm = 54\n.param Gfc = -9\n.param pfc = -93\n \n.param G = 10**(-Gfc/20)\n.param Boost = pm-(pfc)-90\n.param pi = 3.14159\n.param K = (tan((Boost/4+45)*pi/180))**2\n.param C2 = 1/(2*pi*fc*G*Rupper)\n.param C1 = C2*(K-1)\n.param R2 = sqrt(K)/(2*pi*fc*C1)\n.param R3 =Rupper/(K-1)\n.param C3 = 1/(2*pi*fc*sqrt(K)*R3)\n.param Fzero = fc/sqrt(K)\n.param Fpole =sqrt( K) * fc\n \n.param Rpullup = 470\n \n.param a =(Fpole**2+fc**2)*(fc**2+Fzero**2)*(Fpole**2+fc**2)*(fc**2+Fzero**2)\n.param b =Fpole**2*Fpole**2+Fpole**2* fc**2+fc**2*Fpole**2+fc**4\n \n.param Rled = (sqrt(a)/b)*Rpullup*Fpole*Fpole/(Fzero*fc*G)\n.param Czero = 1/(2*pi*Fzero*Rupper)\n.param Cpole = 1/(2*pi*Fpole*Rpullup)\n.param Cpz = (Fpole-Fzero)/(2*Fzero*Fpole*Rled*pi)\n.param Rpz = 1/(2*pi*Fpole*Cpz)\n.param CTR = 1