Version 4 SHEET 1 1012 888 WIRE -288 -384 -464 -384 WIRE -64 -384 -288 -384 WIRE 192 -384 -64 -384 WIRE 320 -384 192 -384 WIRE 432 -384 320 -384 WIRE -464 -336 -464 -384 WIRE -288 -336 -288 -384 WIRE 432 -336 432 -384 WIRE 192 -304 192 -384 WIRE -64 -256 -64 -384 WIRE -800 -240 -800 -256 WIRE 432 -224 432 -256 WIRE -288 -208 -288 -256 WIRE -128 -208 -288 -208 WIRE -848 -176 -1040 -176 WIRE -720 -176 -752 -176 WIRE 320 -176 320 -384 WIRE 0 -160 -64 -160 WIRE 32 -160 0 -160 WIRE 192 -160 192 -240 WIRE 192 -160 112 -160 WIRE 272 -160 192 -160 WIRE -288 -128 -288 -208 WIRE -1040 -112 -1040 -176 WIRE -944 -112 -1040 -112 WIRE -656 -112 -656 -176 WIRE -656 -112 -880 -112 WIRE -464 -80 -464 -256 WIRE -464 -80 -544 -80 WIRE -352 -80 -464 -80 WIRE -800 -64 -800 -80 WIRE -464 -64 -464 -80 WIRE -544 -32 -544 -80 WIRE -288 -16 -288 -32 WIRE 160 -16 -288 -16 WIRE 320 -16 320 -80 WIRE 320 -16 240 -16 WIRE -1040 0 -1040 -112 WIRE -848 0 -1040 0 WIRE -720 0 -752 0 WIRE -656 0 -656 -112 WIRE -384 0 -464 0 WIRE -384 16 -384 0 WIRE -288 16 -288 -16 WIRE -464 32 -464 0 WIRE 0 80 0 -160 WIRE -944 144 -944 112 WIRE -384 144 -384 96 WIRE -1136 160 -1200 160 WIRE -1040 160 -1040 0 WIRE -1040 160 -1056 160 WIRE -976 160 -1040 160 WIRE -656 176 -656 0 WIRE -656 176 -912 176 WIRE -544 176 -544 32 WIRE -544 176 -656 176 WIRE -464 176 -464 112 WIRE -464 176 -544 176 WIRE -336 176 -352 176 WIRE -976 192 -992 192 WIRE -288 208 -288 96 WIRE -240 208 -288 208 WIRE 0 208 0 160 WIRE 0 208 -240 208 WIRE 176 208 64 208 WIRE 320 208 320 -16 WIRE 320 208 240 208 WIRE 416 208 320 208 WIRE 480 208 416 208 WIRE 544 208 480 208 WIRE -992 224 -992 192 WIRE -240 224 -240 208 WIRE -1200 240 -1200 160 WIRE 416 256 416 208 WIRE 544 256 544 208 WIRE -384 272 -384 208 WIRE -336 272 -336 176 WIRE -336 272 -384 272 WIRE -1040 288 -1040 160 WIRE 64 288 64 208 WIRE 64 288 -1040 288 WIRE 144 288 64 288 WIRE 320 288 320 208 WIRE 320 288 224 288 WIRE -464 320 -464 176 WIRE -1200 352 -1200 320 WIRE 0 352 0 208 WIRE 416 352 416 320 WIRE -288 368 -288 208 WIRE 544 368 544 336 WIRE -544 400 -544 176 WIRE -464 432 -464 400 WIRE -384 432 -384 272 WIRE -384 432 -464 432 WIRE -288 480 -288 448 WIRE 160 480 -288 480 WIRE 320 480 320 288 WIRE 320 480 240 480 WIRE -544 528 -544 464 WIRE -464 528 -464 496 WIRE -464 528 -544 528 WIRE -352 528 -464 528 WIRE 320 528 320 480 WIRE 0 608 0 432 WIRE 0 608 -96 608 WIRE 48 608 0 608 WIRE 208 608 128 608 WIRE 272 608 208 608 WIRE 448 640 400 640 WIRE -288 656 -288 576 WIRE -160 656 -288 656 WIRE 400 656 400 640 WIRE -464 672 -464 528 WIRE 208 672 208 608 WIRE 448 672 448 640 WIRE -288 688 -288 656 WIRE -464 800 -464 752 WIRE -288 800 -288 768 WIRE -288 800 -464 800 WIRE -96 800 -96 704 WIRE -96 800 -288 800 WIRE 208 800 208 736 WIRE 208 800 -96 800 WIRE 320 800 320 624 WIRE 320 800 208 800 WIRE 448 800 448 752 WIRE 448 800 320 800 FLAG 544 368 0 FLAG 432 -224 0 FLAG 400 656 0 FLAG 480 208 out FLAG -1200 352 0 FLAG 432 -384 Vcc FLAG 448 800 Vss FLAG -944 208 -15V FLAG -992 224 0 FLAG 192 -160 GateQ3 FLAG 208 608 GateQ4 FLAG -944 112 +15V FLAG -800 -256 Va FLAG -800 -80 Vb FLAG -688 448 0 FLAG -800 448 0 FLAG -688 368 Va FLAG -800 368 Vb FLAG -912 544 0 FLAG -1072 544 0 FLAG -1072 464 +15V FLAG -912 464 -15V FLAG 416 352 0 FLAG -240 224 0 SYMBOL res 528 240 R0 SYMATTR InstName R1 SYMATTR Value 4 SYMBOL voltage -1200 224 R0 WINDOW 3 24 44 Left 0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR Value SINE(0 5 20K 0 0 0 20) SYMATTR InstName V1 SYMBOL res -304 -352 R0 SYMATTR InstName R7 SYMATTR Value 400 SYMBOL res -304 672 R0 SYMATTR InstName R8 SYMATTR Value 400 SYMBOL npn -352 -128 R0 SYMATTR InstName Q1 SYMATTR Value 2N3904 SYMBOL voltage 432 -352 R0 SYMATTR InstName V4 SYMATTR Value 30 SYMBOL voltage 448 656 R0 SYMATTR InstName V5 SYMATTR Value 30 SYMBOL res -304 0 R0 SYMATTR InstName R2 SYMATTR Value 200 SYMBOL res 144 -32 M90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R3 SYMATTR Value 1K SYMBOL pnp -352 576 M180 SYMATTR InstName Q2 SYMATTR Value 2N3906 SYMBOL res -304 352 R0 SYMATTR InstName R4 SYMATTR Value 200 SYMBOL res 256 464 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R5 SYMATTR Value 1K SYMBOL res 240 272 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R6 SYMATTR Value 10K SYMBOL res -1040 144 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R9 SYMATTR Value 2K SYMBOL diode -480 -64 R0 WINDOW 3 41 29 Left 0 SYMATTR Value 1N4148 SYMATTR InstName D1 SYMBOL diode -448 432 M0 WINDOW 3 31 123 Left 0 SYMATTR Value 1N4148 SYMATTR InstName D2 SYMBOL res -480 -352 R0 SYMATTR InstName R12 SYMATTR Value 20k SYMBOL res -480 656 R0 SYMATTR InstName R13 SYMATTR Value 20K SYMBOL cap -560 -32 R0 SYMATTR InstName C1 SYMATTR Value 1µ SYMBOL npn -848 -64 M90 SYMATTR InstName Q5 SYMBOL pnp -848 -240 M90 WINDOW 0 66 36 Left 0 WINDOW 3 70 71 Left 0 SYMATTR InstName Q6 SYMBOL voltage -688 352 R0 SYMATTR InstName Va SYMATTR Value 4.6V SYMBOL voltage -800 352 R0 SYMATTR InstName Vb SYMATTR Value -4.6V SYMBOL diode -656 -192 R90 WINDOW 0 0 32 VBottom 0 WINDOW 3 32 32 VTop 0 SYMATTR InstName D5 SYMBOL diode -720 16 R270 WINDOW 0 32 32 VTop 0 WINDOW 3 0 32 VBottom 0 SYMATTR InstName D6 SYMBOL voltage -1072 448 R0 SYMATTR InstName V2 SYMATTR Value 15V SYMBOL voltage -912 448 R0 SYMATTR InstName V3 SYMATTR Value -15V SYMBOL zener 208 -240 R180 WINDOW 0 24 72 Left 0 WINDOW 3 -106 94 Left 0 SYMATTR InstName D3 SYMATTR Value BZX84C15L SYMBOL zener 224 736 R180 WINDOW 0 24 72 Left 0 WINDOW 3 -113 -14 Left 0 SYMATTR InstName D4 SYMATTR Value BZX84C15L SYMBOL cap -880 -128 R90 WINDOW 0 0 32 VBottom 0 WINDOW 3 32 32 VTop 0 SYMATTR InstName C5 SYMATTR Value 100p SYMBOL cap 400 256 R0 SYMATTR InstName C6 SYMATTR Value 30pF SYMBOL Opamps\\LT1028 -944 112 R0 SYMATTR InstName U2 SYMBOL cap -560 400 R0 SYMATTR InstName C7 SYMATTR Value 1µ SYMBOL npn -128 -256 R0 SYMATTR InstName Q9 SYMATTR Value 2N3904 SYMBOL pnp -160 704 M180 SYMATTR InstName Q10 SYMATTR Value 2N3906 SYMBOL res -16 64 R0 SYMATTR InstName R10 SYMATTR Value 1k SYMBOL res -16 336 R0 SYMATTR InstName R14 SYMATTR Value 1k SYMBOL cap 240 192 R90 WINDOW 0 0 32 VBottom 0 WINDOW 3 32 32 VTop 0 SYMATTR InstName C3 SYMATTR Value 4.5p SYMBOL res 128 -176 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R18 SYMATTR Value 15 SYMBOL res 144 592 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R19 SYMATTR Value 15 SYMBOL res -480 16 R0 SYMATTR InstName R11 SYMATTR Value 2.1K SYMBOL res -480 304 R0 SYMATTR InstName R15 SYMATTR Value 2.1K SYMBOL res -400 0 R0 SYMATTR InstName R16 SYMATTR Value 1.5K SYMBOL pmos 272 528 R0 SYMATTR InstName M1 SYMATTR Value IRF7343P SYMBOL nmos 272 -80 M180 SYMATTR InstName M2 SYMATTR Value IRF530 SYMBOL Robertugo\\Pote -368 112 M0 WINDOW 3 28 98 Left 0 WINDOW 123 58 118 Center 0 SYMATTR InstName U1 SYMATTR Value Rt=5K TEXT -1240 680 Left 0 !.tran 0 10ms 0 .01ms TEXT -248 -96 Left 0 ;Bvebo=6.0V TEXT 384 408 Left 0 ;Heatsink to drain cap. TEXT -1200 720 Left 0 !;op TEXT -1200 -424 Left 0 ;Ron Larson 1/2/04: MOS_AMP2.asc has 100Khz power BW.\nInput bandwidth must be limited to prevent shoot-thru current\nfrom smoking the fets at high input freqs. Q5,6 provide voltage\nlimiting to help prevent overvoltage shoot-thru current.