Version 4 SHEET 1 1188 680 WIRE -80 48 -288 48 WIRE 80 48 -80 48 WIRE 272 48 144 48 WIRE 352 48 272 48 WIRE 704 64 464 64 WIRE 992 64 704 64 WIRE 1120 64 992 64 WIRE -288 80 -288 48 WIRE 352 80 352 48 WIRE 464 80 464 64 WIRE 704 96 704 64 WIRE 992 96 992 64 WIRE 1120 96 1120 64 WIRE -80 144 -80 48 WIRE 0 144 -80 144 WIRE 272 144 272 48 WIRE 272 144 224 144 WIRE -288 176 -288 160 WIRE 464 176 464 160 WIRE 656 176 592 176 WIRE 0 208 -288 208 WIRE 256 208 224 208 WIRE 592 208 592 176 WIRE 592 208 336 208 WIRE 704 224 704 192 WIRE 704 224 560 224 WIRE 800 224 704 224 WIRE 992 224 992 160 WIRE 992 224 880 224 WIRE 1120 224 1120 176 WIRE 1120 224 992 224 WIRE 704 256 704 224 WIRE 992 256 992 224 WIRE -288 272 -288 208 WIRE 0 272 -192 272 WIRE 352 272 352 144 WIRE 352 272 224 272 WIRE 560 272 560 224 WIRE 560 272 352 272 WIRE 1120 272 1120 224 WIRE -192 304 -192 272 WIRE 880 304 880 288 WIRE 0 336 -48 336 WIRE 288 336 224 336 WIRE 656 336 368 336 WIRE -288 400 -288 352 WIRE -192 400 -192 384 WIRE -48 400 -48 336 WIRE 704 400 704 352 WIRE 800 400 800 288 WIRE 880 400 880 384 WIRE 992 400 992 320 WIRE 1120 400 1120 352 FLAG -48 400 0 FLAG -288 176 0 FLAG -288 400 0 FLAG -192 400 0 FLAG 704 400 0 FLAG 992 400 0 FLAG 1120 400 0 FLAG 880 400 0 FLAG 800 400 0 FLAG 464 176 0 SYMBOL voltage -288 64 R0 WINDOW 123 0 0 Left 0 WINDOW 39 30 101 Left 0 WINDOW 0 -12 60 Left 0 WINDOW 3 20 11 Left 0 SYMATTR SpiceLine Rser=1 SYMATTR InstName V1 SYMATTR Value 12 SYMBOL voltage -288 256 R0 WINDOW 3 -56 -205 VRight 0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR Value PULSE(0 5 10u 10n 10n 9u 20u) SYMATTR InstName V2 SYMBOL voltage -192 288 R0 WINDOW 3 -64 149 Left 0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR Value PULSE(0 5 20u 10n 10n 9u 20u) SYMATTR InstName V3 SYMBOL diode 80 64 R270 WINDOW 0 16 -4 VTop 0 WINDOW 3 44 88 VBottom 0 SYMATTR InstName D1 SYMATTR Value md SYMBOL cap 336 80 R0 SYMATTR InstName C1 SYMATTR Value 0.1µ SYMBOL res 240 224 R270 WINDOW 0 16 12 VTop 0 WINDOW 3 46 91 VBottom 0 SYMATTR InstName R1 SYMATTR Value 20 SYMBOL res 272 352 R270 WINDOW 0 15 -2 VTop 0 WINDOW 3 46 103 VBottom 0 SYMATTR InstName R2 SYMATTR Value 20 SYMBOL cap 976 96 R0 WINDOW 123 24 85 Left 0 WINDOW 39 24 110 Left 0 WINDOW 3 24 57 Left 0 SYMATTR Value2 Rser=0.5 SYMATTR SpiceLine IC=200 SYMATTR InstName C2 SYMATTR Value 220µ SYMBOL cap 976 256 R0 WINDOW 123 24 92 Left 0 WINDOW 39 24 120 Left 0 SYMATTR Value2 Rser=0.5 SYMATTR SpiceLine IC=200 SYMATTR InstName C3 SYMATTR Value 220µ SYMBOL res 1104 80 R0 SYMATTR InstName R3 SYMATTR Value 20k SYMBOL res 1104 256 R0 SYMATTR InstName R4 SYMATTR Value 20k SYMBOL ind2 784 208 M90 WINDOW 0 -26 28 VTop 0 WINDOW 3 1 71 VBottom 0 WINDOW 39 -23 52 VBottom 0 SYMATTR InstName L1 SYMATTR Value 1m SYMATTR SpiceLine Rser=1 SYMATTR Type ind SYMBOL ind2 784 304 R270 WINDOW 0 -27 36 VTop 0 WINDOW 3 -2 69 VBottom 0 SYMATTR InstName L2 SYMATTR Value 1µ SYMATTR Type ind SYMBOL res 864 288 R0 SYMATTR InstName R5 SYMATTR Value 5 SYMBOL voltage 464 64 R0 WINDOW 123 0 0 Left 0 WINDOW 39 38 54 Left 0 WINDOW 0 -15 57 Left 0 WINDOW 3 15 15 Left 0 SYMATTR SpiceLine Rser=1 SYMATTR InstName V4 SYMATTR Value 400 SYMBOL ir2181 112 240 R0 WINDOW 0 3 -114 Center 0 WINDOW 3 1 -142 Center 0 SYMATTR InstName U1 SYMBOL nmos 656 96 R0 WINDOW 3 -89 -11 Left 0 SYMATTR InstName M1 SYMATTR Value STP8NM60 SYMBOL nmos 656 256 R0 WINDOW 3 -86 -10 Left 0 SYMATTR InstName M2 SYMATTR Value STP8NM60 TEXT 784 256 Left 0 !K1 L1 L2 1 TEXT -352 16 Left 0 !.tran 0 1000u 0 0.1u TEXT 104 384 Left 0 ;Choose Control Panel -> SPICE -> Solver: Alternate\nPrefix: X is required for subcircuit mosfet symbols.\nPress -right mouse button for this change. TEXT 0 8 Left 0 !.model md D(Is=1e-9 Rs=0.2) TEXT 392 8 Left 0 ;Half Bridge IR2181 Test Circuit Helmut Sennewald V1