Version 4 SHEET 1 880 680 WIRE 176 96 80 96 WIRE 448 96 272 96 WIRE 480 96 448 96 WIRE 80 128 80 96 WIRE 480 128 480 96 WIRE 256 176 256 144 WIRE 320 176 256 176 WIRE 448 176 448 96 WIRE 448 176 400 176 WIRE 256 192 256 176 WIRE 80 224 80 208 WIRE 480 224 480 208 WIRE 256 288 256 272 FLAG 256 288 0 FLAG 80 224 0 FLAG 480 224 0 FLAG 480 96 Out FLAG 80 96 In FLAG 256 176 G SYMBOL pmos 176 144 R270 SYMATTR InstName M1 SYMATTR Value HAT1072H SYMBOL res 240 176 R0 WINDOW 0 -32 55 Left 2 SYMATTR InstName R1 SYMATTR Value 10k SYMBOL battery 80 112 R0 WINDOW 3 -279 152 Left 2 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR Value PULSE(+24v -24V 1ms 1ms 1ms .5ms) SYMATTR InstName V1 SYMBOL res 464 112 R0 SYMATTR InstName RL SYMATTR Value 1.5 SYMBOL res 416 160 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R3 SYMATTR Value 10k TEXT 16 304 Left 2 !.tran 4ms