Version 4 SHEET 1 880 680 WIRE -16 240 -16 224 WIRE -16 352 -16 320 WIRE 32 224 -16 224 WIRE 160 224 112 224 WIRE 160 240 160 224 WIRE 160 352 160 304 WIRE 224 224 160 224 WIRE 224 240 224 224 WIRE 224 352 224 320 FLAG 224 352 0 FLAG 160 352 0 FLAG -16 352 0 SYMBOL voltage -16 224 M0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V1 SYMATTR Value PULSE(-50 50 0 1n 1n 50n 1000n) SYMBOL ind 16 240 R270 WINDOW 0 32 56 VTop 0 WINDOW 3 5 56 VBottom 0 SYMATTR InstName L1 SYMATTR Value 22µH SYMBOL cap 176 240 M0 SYMATTR InstName C1 SYMATTR Value 700n SYMBOL res 208 224 R0 SYMATTR InstName R1 SYMATTR Value 4 TEXT -176 96 Left 0 !.tran 0 100u 0 10n uic