initial commit

examples/jigs/2ndOrderHighpass.asc

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+Version 4
+SHEET 1 1060 680
+WIRE -560 -128 -624 -128
+WIRE -464 -128 -496 -128
+WIRE -288 -128 -416 -128
+WIRE -208 -128 -288 -128
+WIRE -32 -128 -144 -128
+WIRE 96 -128 -32 -128
+WIRE 256 -128 144 -128
+WIRE 320 -128 256 -128
+WIRE 352 -128 320 -128
+WIRE 480 -128 416 -128
+WIRE -416 -96 -416 -128
+WIRE -32 -96 -32 -128
+WIRE -464 -80 -464 -128
+WIRE -288 -64 -288 -128
+WIRE 144 -64 144 -128
+WIRE 256 -64 256 -128
+WIRE 96 -48 96 -128
+WIRE -464 0 -464 -32
+WIRE -416 0 -416 -16
+WIRE -32 32 -32 -16
+WIRE 96 32 96 0
+WIRE 144 32 144 16
+WIRE 256 32 256 16
+WIRE -288 48 -288 16
+FLAG -32 32 0
+FLAG -288 48 0
+FLAG -416 0 0
+FLAG -464 0 0
+FLAG 96 32 0
+FLAG 144 32 0
+FLAG 256 32 0
+FLAG 320 -128 2
+FLAG -464 -128 1
+SYMBOL ind -48 -112 R0
+WINDOW 0 59 45 Bottom 2
+WINDOW 3 61 51 Top 2
+SYMATTR InstName L1
+SYMATTR Value {L1}
+SYMBOL cap -208 -112 R270
+WINDOW 0 52 17 VRight 2
+WINDOW 3 -26 17 VRight 2
+WINDOW 123 -57 10 VRight 2
+SYMATTR InstName C1
+SYMATTR Value {C1}
+SYMATTR Value2 Rser={R1/2}
+SYMBOL g -416 -112 R0
+SYMATTR InstName G1
+SYMATTR Value {2/R1}
+SYMBOL res -304 -80 R0
+SYMATTR InstName R1
+SYMATTR Value {R1/2}
+SYMBOL g 144 -80 R0
+SYMATTR InstName G2
+SYMATTR Value {10*H}
+SYMBOL res 240 -80 R0
+SYMATTR InstName R2
+SYMATTR Value .1
+SYMBOL Misc\\jumper 384 -192 R0
+SYMATTR InstName X1
+SYMBOL Misc\\jumper -528 -192 M0
+SYMATTR InstName X2
+TEXT 408 -256 Left 2 ;.param f0= 1k Q=.5
+TEXT 296 136 Left 2 !.param R1=1k
+TEXT 96 200 Left 2 !.param L1=R1*Q/(2*pi*f0)
+TEXT -448 -256 Left 2 ;Most efficient LTSPICE implementation for f0 and Q set by parameters >>>
+TEXT 96 136 Left 2 ;R1 is arbitary >>>
+TEXT 0 -216 Left 2 ;This version puts 1/2 the R1 resistance in the capacitor
+TEXT 96 240 Left 2 !.param C1=1/(L1*(2*pi*f0)**2)
+TEXT 432 -144 Left 2 ;Vout
+TEXT -576 -144 Right 2 ;Vin