Version 4.1
SHEET 1 3124 1764
WIRE -960 -144 -1104 -144
WIRE -736 -144 -880 -144
WIRE -352 -128 -480 -128
WIRE -144 -128 -352 -128
WIRE 208 -128 -64 -128
WIRE -1104 -112 -1104 -144
WIRE 1296 -112 1296 -128
WIRE 1488 -112 1488 -128
WIRE -1104 -16 -1104 -32
WIRE -736 -16 -1104 -16
WIRE 1296 16 1296 -32
WIRE 1488 16 1488 -32
WIRE 208 48 208 -128
WIRE -864 80 -912 80
WIRE -720 80 -784 80
WIRE -912 112 -912 80
WIRE 496 128 416 128
WIRE 1296 160 1296 96
WIRE 1488 160 1488 96
WIRE 496 176 416 176
WIRE -912 208 -912 192
WIRE -720 208 -912 208
WIRE -352 208 -352 -128
WIRE -32 208 -80 208
WIRE 48 208 -32 208
WIRE 496 224 416 224
WIRE -1104 240 -1104 -16
WIRE -912 240 -912 208
WIRE -32 272 -80 272
WIRE 48 272 -32 272
WIRE 480 304 416 304
WIRE 816 304 480 304
WIRE 960 304 896 304
WIRE 1088 304 960 304
WIRE 1104 304 1088 304
WIRE -1104 352 -1104 320
WIRE -912 352 -912 320
WIRE -912 352 -1104 352
WIRE 496 384 416 384
WIRE -1104 400 -1104 352
WIRE -32 432 -80 432
WIRE 48 432 -32 432
WIRE 496 432 416 432
WIRE 496 480 416 480
WIRE 1088 480 1088 304
WIRE -32 496 -80 496
WIRE 48 496 -32 496
WIRE 960 496 960 304
WIRE 320 576 320 560
WIRE -960 592 -1104 592
WIRE -736 592 -880 592
WIRE -1104 624 -1104 592
WIRE 320 672 320 656
WIRE -1104 720 -1104 704
WIRE -736 720 -1104 720
WIRE -352 720 -352 288
WIRE -352 720 -480 720
WIRE 208 720 208 560
WIRE 208 720 -352 720
WIRE 960 720 960 560
WIRE 960 720 208 720
WIRE 1088 720 1088 560
WIRE 1088 720 960 720
WIRE 208 768 208 720
WIRE -864 816 -912 816
WIRE -720 816 -784 816
WIRE -912 848 -912 816
WIRE -912 944 -912 928
WIRE -720 944 -912 944
WIRE -1104 976 -1104 720
WIRE -912 976 -912 944
WIRE 192 1056 192 864
WIRE -1104 1088 -1104 1056
WIRE -912 1088 -912 1056
WIRE -912 1088 -1104 1088
WIRE -1104 1136 -1104 1088
WIRE 32 1216 -96 1216
WIRE 464 1232 400 1232
WIRE 32 1280 -96 1280
WIRE 544 1312 400 1312
WIRE 480 1392 400 1392
WIRE 32 1440 -96 1440
WIRE 32 1504 -96 1504
WIRE 304 1584 304 1568
WIRE 192 1744 192 1568
FLAG -480 -128 V+
FLAG -480 720 V-
FLAG 1104 304 Vo
FLAG 208 768 0
FLAG -32 208 VG1
FLAG -32 432 VG2
FLAG -736 -144 G1
IOPIN -736 -144 Out
FLAG -720 80 G2
IOPIN -720 80 Out
FLAG -736 -16 K1
IOPIN -736 -16 In
FLAG -720 208 K2
IOPIN -720 208 In
FLAG -1104 400 0
FLAG -80 208 G1
IOPIN -80 208 Out
FLAG -80 432 G2
IOPIN -80 432 Out
FLAG 208 -128 High
FLAG -32 272 VK1
FLAG -32 496 VK2
FLAG -80 272 K1
IOPIN -80 272 In
FLAG -80 496 K2
IOPIN -80 496 In
FLAG 496 176 TjQ1
FLAG 496 432 TjQ2
FLAG 1296 160 0
FLAG 1488 160 0
FLAG 1296 -128 Tc1
FLAG 1488 -128 Tc2
FLAG 496 384 Tc2
FLAG 496 224 Tc1
FLAG 496 480 TjD2
FLAG 496 128 TjD1
FLAG 320 672 0
FLAG 480 304 Mid
FLAG -96 1216 G3
IOPIN -96 1216 Out
FLAG -96 1440 G4
IOPIN -96 1440 Out
FLAG -96 1280 K3
IOPIN -96 1280 In
FLAG -96 1504 K4
IOPIN -96 1504 In
FLAG 192 1744 0
FLAG 544 1312 Mid
FLAG 464 1232 Tc1
FLAG 480 1392 Tc2
FLAG 192 864 High
FLAG -736 592 G3
IOPIN -736 592 Out
FLAG -720 816 G4
IOPIN -720 816 Out
FLAG -736 720 K3
IOPIN -736 720 In
FLAG -720 944 K4
IOPIN -720 944 In
FLAG -1104 1136 0
SYMBOL ind -48 -144 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName Lbus
SYMATTR Value {Lbus}
SYMBOL res -1088 224 M0
SYMATTR InstName R1
SYMATTR Value 10Meg
SYMBOL res -928 224 R0
SYMATTR InstName R2
SYMATTR Value 10Meg
SYMBOL res -768 64 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value {Rg}
SYMBOL res -864 -160 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value {Rg}
SYMBOL voltage -352 192 R0
SYMATTR InstName V1
SYMATTR Value {Vbus}
SYMBOL voltage -1104 -128 R0
WINDOW 0 24 16 Invisible 2
WINDOW 3 -43 -259 Invisible 2
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V5
SYMATTR Value PULSE({Voff} {Von} {Td} {RT} {FT} {-Td + Tduty/Freq} {1/Freq} {NCycles})
SYMBOL ind 800 320 R270
WINDOW 0 32 56 Invisible 2
WINDOW 3 63 56 VBottom 2
SYMATTR InstName Lfilter
SYMATTR Value {Lfilter}
SYMBOL res 1072 464 R0
WINDOW 3 39 90 Left 2
SYMATTR Value {Rload}
SYMATTR InstName Rload
SYMBOL cap 944 496 R0
SYMATTR InstName C1
SYMATTR Value {Cfilter}
SYMBOL voltage 1296 0 R0
SYMATTR InstName V2
SYMATTR Value {Tcoolant}
SYMBOL voltage 1488 0 R0
SYMATTR InstName V3
SYMATTR Value {Tcoolant}
SYMBOL res 1280 -128 R0
SYMATTR InstName R7
SYMATTR Value {RSA}
SYMBOL res 1472 -128 R0
SYMATTR InstName R8
SYMATTR Value {RSA}
SYMBOL CAB525F12XM3_LTspice 64 560 R0
SYMATTR InstName U1
SYMATTR Value CAB760M12HM3
SYMBOL res 304 560 R0
SYMATTR InstName R6
SYMATTR Value 1k
SYMBOL CAB525F12XM3_LTspice 48 1568 R0
WINDOW 40 350 -470 Right 2
SYMATTR InstName U2
SYMATTR Value CAB760M12HM3
SYMATTR SpiceLine2 Vths=1
SYMBOL res -1088 960 M0
SYMATTR InstName R5
SYMATTR Value 10Meg
SYMBOL res -928 960 R0
SYMATTR InstName R9
SYMATTR Value 10Meg
SYMBOL res -768 800 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R10
SYMATTR Value {Rg}
SYMBOL res -864 576 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R11
SYMATTR Value {Rg}
SYMBOL voltage -1104 608 R0
WINDOW 0 24 16 Invisible 2
WINDOW 3 -43 -259 Invisible 2
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V6
SYMATTR Value PULSE({Voff} {Von} {Td} {RT} {FT} {-Td + Tduty/Freq} {1/Freq} {NCycles})
SYMBOL voltage -912 832 R0
SYMATTR InstName V4
SYMATTR Value -4
SYMBOL voltage -912 96 R0
SYMATTR InstName V7
SYMATTR Value -4
TEXT -1736 424 Left 2 !.tran {NCycles/Freq}
TEXT -1232 -232 Left 4 ;Gate Drive
TEXT -1744 -232 Left 4 ;Adjustable Variables
TEXT -600 -248 Left 4 ;Synchronous Buck Converter
TEXT -1736 200 Left 2 !.param RT = 10.00n\n.param FT = 10.00n\n.param Von = 15.00\n.param Voff = -5.00\n.param Rg = 3.30
TEXT -1728 -152 Left 2 !.param Vbus = 800.00\n.param Freq = 100.00k\n.param Td = 500.00n\n.param Tduty = 500.00m\n.param NCycles = 100\n.param Lbus = 3.50n\n.param Rload = 5\n.param Lfilter = 250.00u\n.param Cfilter = 250.00n\n.param Tcoolant=25\n.param RSA=100m
TEXT -1728 -184 Left 2 ;Operating Conditions
TEXT -1728 176 Left 2 ;Gate Drive
TEXT -1736 360 Left 2 !.TEMP 25
TEXT 1248 -240 Left 4 ;Coolant
TEXT -1232 504 Left 4 ;Gate Drive
RECTANGLE Normal -1264 448 -1744 -208 2
RECTANGLE Normal 1216 800 -592 -208
RECTANGLE Normal 1664 208 1248 -208 1
RECTANGLE Normal -624 448 -1232 -208 2
RECTANGLE Normal -624 1184 -1232 528 2