Version 4
SHEET 1 1400 932
WIRE -128 -736 -208 -736
WIRE 0 -736 -48 -736
WIRE 48 -736 0 -736
WIRE 64 -736 48 -736
WIRE 144 -736 128 -736
WIRE 176 -736 144 -736
WIRE 320 -736 256 -736
WIRE 480 -736 400 -736
WIRE 736 -736 720 -736
WIRE 0 -688 0 -736
WIRE 736 -688 736 -736
WIRE 800 -672 784 -672
WIRE 816 -672 800 -672
WIRE 320 -592 288 -592
WIRE 432 -592 400 -592
WIRE 0 -576 0 -608
WIRE 736 -576 736 -608
WIRE 784 -576 784 -624
WIRE -112 -544 -128 -544
WIRE -128 -512 -128 -544
WIRE 288 -464 288 -592
WIRE 320 -464 288 -464
WIRE 432 -464 400 -464
WIRE 192 -400 176 -400
WIRE 736 -400 720 -400
WIRE -80 -384 -80 -416
WIRE 112 -384 -80 -384
WIRE -128 -368 -128 -416
WIRE 288 -368 288 -464
WIRE 288 -368 176 -368
WIRE 736 -352 736 -400
WIRE 288 -336 288 -368
WIRE 320 -336 288 -336
WIRE 432 -336 400 -336
WIRE -128 -320 -128 -368
WIRE 16 -320 0 -320
WIRE 0 -304 0 -320
WIRE 288 -304 288 -336
WIRE 736 -240 736 -272
WIRE -128 -208 -128 -240
WIRE 0 -208 0 -224
WIRE 288 -208 288 -240
WIRE 736 -160 720 -160
WIRE 736 -144 736 -160
WIRE 736 -64 736 -80
WIRE 736 -64 720 -64
WIRE 720 32 704 32
WIRE 736 32 720 32
WIRE 736 64 736 32
WIRE -128 112 -144 112
WIRE -32 112 -48 112
WIRE -16 112 -32 112
WIRE 64 112 32 112
WIRE 176 112 144 112
WIRE 224 112 176 112
WIRE 352 112 304 112
WIRE 32 144 32 112
WIRE 176 144 176 112
WIRE 736 176 736 144
WIRE 80 208 32 144
WIRE 128 208 176 144
WIRE 416 208 352 112
WIRE -128 256 -208 256
WIRE 0 256 -48 256
WIRE 48 256 0 256
WIRE 80 256 80 208
WIRE 80 256 48 256
WIRE 128 256 128 208
WIRE 144 256 128 256
WIRE 176 256 144 256
WIRE 320 256 256 256
WIRE 416 256 416 208
WIRE 416 256 400 256
WIRE 480 256 416 256
WIRE 736 256 720 256
WIRE 0 304 0 256
WIRE 736 304 736 256
WIRE 320 400 288 400
WIRE 432 400 400 400
WIRE 0 416 0 384
WIRE 736 416 736 384
WIRE -112 496 -128 496
WIRE -16 496 -32 496
WIRE -128 528 -128 496
WIRE 192 528 160 528
WIRE 288 528 288 400
WIRE 288 528 256 528
WIRE 320 528 288 528
WIRE 432 528 400 528
WIRE -128 656 -128 608
WIRE 0 656 -128 656
WIRE 224 656 144 656
WIRE 288 656 224 656
WIRE 320 656 288 656
WIRE 432 656 400 656
WIRE -128 688 -128 656
WIRE 0 688 0 656
WIRE 144 688 144 656
WIRE 288 688 288 656
WIRE -128 784 -128 752
WIRE 0 784 0 768
WIRE 144 784 144 768
WIRE 288 784 288 752
FLAG 720 -400 i
IOPIN 720 -400 Out
FLAG 720 256 o
IOPIN 720 256 Out
FLAG -16 496 0
FLAG -128 496 d
FLAG 736 -240 0
FLAG 736 416 0
FLAG 144 784 0
FLAG 288 784 0
FLAG 0 784 0
FLAG -128 784 0
FLAG 224 656 ramp
FLAG 48 256 x
FLAG 0 416 0
FLAG 432 400 0
FLAG 160 528 0
FLAG 432 528 0
FLAG 288 400 di
FLAG 432 656 0
FLAG -128 -208 0
FLAG 0 -576 0
FLAG -128 -544 pwm
FLAG 192 -400 0
FLAG 432 -336 0
FLAG 0 -208 0
FLAG 0 -320 saw
FLAG 432 -592 0
FLAG 288 -208 0
FLAG 432 -464 0
FLAG 288 -592 di1
FLAG 736 -160 di1
FLAG -208 -736 i
IOPIN -208 -736 BiDir
FLAG 480 -736 o2
IOPIN 480 -736 BiDir
FLAG -128 -368 clk
FLAG 736 -64 di
FLAG 48 -736 x1
FLAG 144 -736 y1
FLAG 144 256 y
FLAG -144 112 0
FLAG -32 112 Dz
FLAG 736 176 0
FLAG 720 32 Kf
FLAG -208 256 i
IOPIN -208 256 BiDir
FLAG 480 256 o
IOPIN 480 256 BiDir
FLAG 720 -736 o2
IOPIN 720 -736 Out
FLAG 736 -576 0
FLAG 784 -576 0
FLAG 800 -672 o
SYMBOL bi -128 256 M90
WINDOW 0 -32 40 VBottom 0
WINDOW 3 48 16 VCenter 0
SYMATTR InstName Bi
SYMATTR Value I=V(d)*I(Vx)
SYMBOL bv 0 288 R0
WINDOW 3 -112 56 Center 0
WINDOW 0 16 16 Left 0
SYMATTR Value V=V(d)*V(i)
SYMATTR InstName Bx
SYMBOL voltage 304 256 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 -32 56 VBottom 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName Vx
SYMATTR Value 0
SYMBOL res -128 512 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName Rd
SYMATTR Value 1
SYMBOL voltage 736 -368 M0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
WINDOW 0 16 16 Left 0
WINDOW 3 16 96 Left 0
SYMATTR InstName Vi
SYMATTR Value 10
SYMBOL bi 144 768 M180
WINDOW 0 16 80 Left 0
WINDOW 3 0 -80 Center 0
SYMATTR InstName BrI
SYMATTR Value I=V(i,o)/{2*f*Lo}
SYMBOL cap 304 688 M0
WINDOW 39 24 56 Left 0
WINDOW 3 8 56 Right 0
SYMATTR SpiceLine Rpar=1
SYMATTR Value 1n
SYMATTR InstName Cr
SYMBOL bi 0 768 R180
WINDOW 0 -16 80 Right 0
WINDOW 3 0 -48 Center 0
SYMATTR InstName B2
SYMATTR Value I=limit(0,1,V(di)/V(ramp))
SYMBOL cap -112 688 M0
WINDOW 39 24 86 Left 0
WINDOW 3 24 56 Left 0
SYMATTR Value {4/pi/pi/f}
SYMATTR InstName Cd
SYMBOL ind 160 272 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 5 56 VBottom 0
WINDOW 39 -17 56 VBottom 0
SYMATTR InstName Lo
SYMATTR Value {Lo}
SYMATTR SpiceLine Rser=10u
SYMBOL voltage 736 288 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
WINDOW 0 16 16 Left 0
WINDOW 3 16 96 Left 0
SYMATTR InstName Vo
SYMATTR Value PWL(0 8 50m 0)
SYMBOL f 320 400 M90
WINDOW 0 -32 40 VBottom 0
WINDOW 3 32 40 VTop 0
SYMATTR InstName Ffb
SYMATTR Value Vx 1
SYMBOL current 400 528 M270
WINDOW 0 34 40 VTop 0
WINDOW 3 -34 40 VBottom 0
WINDOW 123 -32 0 VLeft 0
WINDOW 39 0 0 Left 0
SYMATTR InstName Iref
SYMATTR Value {Iref}
SYMATTR Value2 AC 1
SYMBOL cap 256 544 M270
WINDOW 39 56 32 VCenter 0
WINDOW 0 32 48 VRight 0
WINDOW 3 32 16 VLeft 0
SYMATTR SpiceLine Rpar=1
SYMATTR InstName Cdi
SYMATTR Value 1n
SYMBOL ind -112 512 M0
WINDOW 0 40 40 Left 0
WINDOW 3 40 64 Left 0
SYMATTR InstName Ld
SYMATTR Value {1/4/f}
SYMBOL bi 400 656 M270
WINDOW 0 32 40 VTop 0
WINDOW 3 -34 16 VBottom 0
SYMATTR InstName BrV
SYMATTR Value I=V(o)/{Lo*f}*n
SYMBOL Digital\\srflop -176 -464 R270
WINDOW 3 16 136 VRight 0
WINDOW 0 40 136 VRight 0
WINDOW 123 -8 136 VRight 0
SYMATTR Value tripdt=10n
SYMATTR InstName A2
SYMATTR Value2 td=10n
SYMBOL voltage -128 -336 R0
WINDOW 0 16 16 Left 0
WINDOW 3 16 160 Center 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName Vclk
SYMATTR Value PULSE(0 1 1u 10n 10n 10n {1/f})
SYMBOL bv 0 -704 R0
WINDOW 3 -128 56 Center 0
WINDOW 0 16 16 Left 0
SYMATTR Value V=V(pwm)*V(i)
SYMATTR InstName Bx1
SYMBOL Digital\\diffschmtbuf 176 -448 M0
WINDOW 3 64 -16 Right 0
WINDOW 0 64 32 Right 0
WINDOW 123 64 8 Right 0
SYMATTR Value Vt=0 Vh=0
SYMATTR InstName A1
SYMATTR Value2 tripdt=10n
SYMBOL cap 752 -144 M0
WINDOW 3 24 56 Left 0
SYMATTR Value 1p
SYMATTR InstName Ctic
SYMBOL bi 320 -336 R270
WINDOW 0 32 40 VTop 0
WINDOW 3 -48 0 VRight 0
SYMATTR InstName BrV1
SYMATTR Value I=V(saw)*V(o)/{Lo*f}*n
SYMBOL voltage 0 -320 M0
WINDOW 0 -16 16 Right 0
WINDOW 3 0 168 Center 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName Vsawtooth
SYMATTR Value PULSE(0 1 {1u+25n} {1/f-20n} 20n 0 {1/f})
SYMBOL ind 160 -720 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 5 56 VBottom 0
WINDOW 39 -17 56 VBottom 0
SYMATTR InstName Lo1
SYMATTR Value {Lo}
SYMATTR SpiceLine Rser=10u
SYMBOL voltage 304 -736 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 -32 56 VBottom 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName Vx1
SYMATTR Value 0
SYMBOL f 320 -592 M90
WINDOW 0 -32 40 VBottom 0
WINDOW 3 32 40 VTop 0
SYMATTR InstName Ffb1
SYMATTR Value Vx1 1
SYMBOL current 400 -464 M270
WINDOW 0 34 40 VTop 0
WINDOW 3 -34 40 VBottom 0
WINDOW 39 0 0 Left 0
SYMATTR InstName Iref1
SYMATTR Value {Iref}
SYMBOL cap 304 -304 M0
WINDOW 39 7 56 Right 0
WINDOW 3 24 56 Left 0
SYMATTR SpiceLine Rpar=1
SYMATTR Value 1n
SYMATTR InstName Cdi1
SYMBOL bi -128 -736 M90
WINDOW 0 -32 40 VBottom 0
WINDOW 3 48 0 VCenter 0
SYMATTR InstName Bi1
SYMATTR Value I=V(pwm)*I(Vx1)
SYMBOL diode 64 -720 R270
WINDOW 0 32 32 VTop 0
WINDOW 3 0 32 VBottom 0
SYMATTR InstName D1
SYMATTR Value Di
SYMBOL bv 160 112 R90
WINDOW 0 35 56 VTop 0
WINDOW 3 -35 56 VBottom 0
SYMATTR InstName BzV
SYMATTR Value V= V(Dz)*V(o)
SYMBOL bi 304 112 M270
WINDOW 0 -35 40 VBottom 0
WINDOW 3 35 40 VTop 0
SYMATTR InstName BzI
SYMATTR Value I= V(Dz)*I(Vx)
SYMBOL bv -32 112 M270
WINDOW 0 -35 56 VBottom 0
WINDOW 3 88 135 VLeft 0
SYMATTR InstName B_Dzero
SYMATTR Value V= limit(0,1,1-V(D)/2*(1+V(i)/V(o))-{f*Lo}*I(Vx)/V(o))
SYMBOL bv 736 48 R0
WINDOW 0 32 32 Left 0
WINDOW 3 32 80 Left 0
SYMATTR InstName Bf
SYMATTR Value V= limit(0,1,(V(i,o)/V(i)+n)*2)
SYMBOL e 736 -704 M0
SYMATTR InstName Eo
SYMATTR Value 1
TEXT 720 592 Left 0 ;.ac dec 501 10k 100k
TEXT 720 528 Left 0 !.param f=20k Lo=100u Iref=1
TEXT 720 560 Left 0 !.tran 0 50m 5m 2u uic
TEXT 216 328 Center 0 ;(100u)
TEXT 720 624 Left 0 ;.step param Vo 0 9.9 .5
TEXT 752 -136 Left 0 ;"Tickler"
TEXT 216 -664 Center 0 ;(100u)
TEXT 720 680 Left 0 !.param n=0
TEXT 720 720 Left 0 ;Slope Compensation Control\n0 is no compensation\n1 is 100% compensation\n (I_ramp = Lo downslope)
TEXT -304 -64 Left 0 ;Current Mode Control (averaged model - analogspiceman 2007)\nwith Discontinuous Conduction Extension (2010)
TEXT -304 -832 Left 0 ;Current Mode Control (switched model with diode to allow discontinuous mode)
TEXT 720 -512 Left 0 ;To check match\nof models, plot\nI(Eo) and I(Vo)
TEXT 56 -616 Left 0 !.model Di\n+ d Ron=10u
TEXT 464 40 Left 0 ;Discontinuous\nConduction\nAveraged\nModel\nExtension
TEXT 464 -592 Left 0 ;Feedback\nCurrent
TEXT 464 -464 Left 0 ;Reference\nCurrent
TEXT 432 -248 Left 0 ;Compensating\nCurrent Ramp
TEXT 464 400 Left 0 ;Feedback\nCurrent
TEXT 464 528 Left 0 ;Reference\nCurrent
TEXT 432 744 Left 0 ;Compensating\nCurrent Ramp
TEXT 144 640 Bottom 0 ;Natural\nRamp
TEXT 0 640 Bottom 0 ;Effective\nGain
TEXT -208 528 Bottom 0 ;Effective\nSampling\nDelay
TEXT -88 80 Bottom 0 ;Zero Duty Cycle
TEXT -216 -224 Bottom 0 ;Clock\nGenerators
TEXT -216 -480 Center 0 ;PWM\nLatch
TEXT 808 0 Left 0 ;Effective Operating\nFrequency Multiplier\n(Freq Reduction Due to\nSubharmonic Oscillation)
TEXT 808 168 Left 0 ;(For Reference\nOnly -  not used)
TEXT 784 -328 Left 0 ;Fixed\nInput Voltage
TEXT 808 312 Left 0 ;Ramping\nOutput Voltage
TEXT 720 496 Left 0 !.step param Iref list 1 3
LINE Normal -128 368 -128 464 2
LINE Normal -128 -624 -128 -576 2
LINE Normal 288 656 288 528 1
LINE Normal 0 656 144 656 1
LINE Normal 32 -320 272 -320 1
LINE Normal 392 -720 392 -608 2
LINE Normal 328 -720 328 -608 2
LINE Normal 392 272 392 384 2
LINE Normal 328 272 328 384 2
RECTANGLE Normal 640 864 -320 -96
RECTANGLE Normal 640 -128 -320 -864
RECTANGLE Normal 448 192 -192 0 1