Version 4 SHEET 1 2732 2708 WIRE 368 1728 368 1680 WIRE 368 1856 368 1808 WIRE 368 1888 368 1856 WIRE 368 2048 368 2000 WIRE 368 2176 368 2128 WIRE 368 2208 368 2176 WIRE 368 2432 368 2384 WIRE 368 2560 368 2512 WIRE 368 2592 368 2560 WIRE 608 1760 576 1760 WIRE 608 2080 576 2080 WIRE 608 2464 576 2464 WIRE 640 1680 368 1680 WIRE 640 1712 640 1680 WIRE 640 1856 368 1856 WIRE 640 1856 640 1808 WIRE 640 2000 368 2000 WIRE 640 2032 640 2000 WIRE 640 2176 368 2176 WIRE 640 2176 640 2128 WIRE 640 2384 368 2384 WIRE 640 2416 640 2384 WIRE 640 2560 368 2560 WIRE 640 2560 640 2512 WIRE 688 1312 688 1264 WIRE 688 1440 688 1392 WIRE 688 1472 688 1440 WIRE 752 1744 688 1744 WIRE 752 2064 688 2064 WIRE 752 2448 688 2448 WIRE 928 1344 896 1344 WIRE 960 1264 688 1264 WIRE 960 1296 960 1264 WIRE 960 1440 688 1440 WIRE 960 1440 960 1392 WIRE 992 1728 992 1680 WIRE 992 1856 992 1808 WIRE 992 1888 992 1856 WIRE 992 2048 992 2000 WIRE 992 2176 992 2128 WIRE 992 2208 992 2176 WIRE 1072 1328 1008 1328 WIRE 1232 1760 1200 1760 WIRE 1232 2080 1200 2080 WIRE 1264 1680 992 1680 WIRE 1264 1712 1264 1680 WIRE 1264 1856 992 1856 WIRE 1264 1856 1264 1808 WIRE 1264 2000 992 2000 WIRE 1264 2032 1264 2000 WIRE 1264 2176 992 2176 WIRE 1264 2176 1264 2128 WIRE 1376 1744 1312 1744 WIRE 1376 2064 1312 2064 FLAG 1072 1328 out0 FLAG 688 1472 GND FLAG 752 1744 pow FLAG 368 1888 GND FLAG 896 1344 out0t FLAG 576 1760 powt FLAG 752 2448 tab FLAG 368 2592 GND FLAG 576 2464 tabt FLAG 1376 1744 lin FLAG 992 1888 GND FLAG 1200 1760 lint FLAG 752 2064 plog FLAG 368 2208 GND FLAG 576 2080 plogt FLAG 1376 2064 nlog FLAG 992 2208 GND FLAG 1200 2080 nlogt SYMBOL VOLTAGE 688 1296 R0 SYMATTR InstName V0 SYMATTR Value 10V SYMBOL VOLTAGE 368 1712 R0 SYMATTR InstName V1 SYMATTR Value 10V SYMBOL VOLTAGE 368 2416 R0 SYMATTR InstName V3 SYMATTR Value 10V SYMBOL VOLTAGE 992 1712 R0 SYMATTR InstName V2 SYMATTR Value 10V SYMBOL potentiometer_tapped 944 1296 R0 SYMATTR InstName U0 SYMATTR Value Rt=10K set=0.5 SYMBOL potentiometer_tapped 624 1712 R0 SYMATTR InstName U1 SYMATTR Value Rt=10K set={var} SYMBOL potentiometer_tapped 1248 1712 R0 SYMATTR InstName U2 SYMATTR SpiceLine Rtap=1k SYMATTR Value Rt=10K set={var} SYMATTR SpiceModel pot_tap_lin SYMBOL potentiometer_tapped 624 2416 R0 SYMATTR InstName U3 SYMATTR Value Rt=10K set={var} SYMATTR SpiceModel pot_tap_tab SYMBOL VOLTAGE 368 2032 R0 SYMATTR InstName V4 SYMATTR Value 10V SYMBOL potentiometer_tapped 624 2032 R0 SYMATTR InstName U4 SYMATTR Value Rt=10K set={var} SYMATTR SpiceModel pot_tap_plog SYMATTR SpiceLine Rtap=0.1k Tap=0.5 SYMBOL VOLTAGE 992 2032 R0 SYMATTR InstName V5 SYMATTR Value 10V SYMBOL potentiometer_tapped 1248 2032 R0 SYMATTR InstName U5 SYMATTR Value Rt=10K set={var} SYMATTR SpiceModel pot_tap_nlog SYMATTR SpiceLine Rtap=0.1k Tap=0.5 TEXT 360 1576 Left 0 !.STEP LIN PARAM var 0 1.0 0.01 TEXT 352 1536 Left 0 ;This example runs the simulation for a wiper from 0 to 1(100%) with step 0.01(1%) TEXT 576 1232 Left 0 !.OP TEXT 360 1640 Left 0 ;A Power "Logarithm" Tapped Potentiometer TEXT 352 2288 Left 0 ;An Arbitrary Tapped Potentiometer\nThe resistance curve is defined in "potentiometer_tapped.lib"\nWatch the realistic flat region around the tap value. TEXT 992 1640 Left 0 ;A Linear Tapped Potentiometer TEXT 352 1960 Left 0 ;An Ideal Positive Logarithm Tapped Potentiometer TEXT 976 1960 Left 0 ;An Ideal Negative Logarithm Tapped Potentiometer TEXT -448 1288 Left 0 ;A Collection Of Tapped Potentiometers Helmut Sennewald, V1.1\n \nA new symbol "potentiometer_tapped.asy" has been generated for all the new potentiometers.\nThe file "pote.lib" contains the X-subcircuits of all these potentiometers.\nThere is a linear, log. and an arbitrary model with a fixed tap.\n \npot_tap_lin : ideal linear resistance dependency\npot_tap_pow : ideal power function resistance dependency\npot_tap_plog : ideal logarithm function resistance dependency\npot_tap_nlog : ideal logarithm function resistance dependency\npot_tap_tab: arbitrary(table) based resistance dependency TEXT -448 1760 Left 0 ;How to select the model?\nMove the cursor over the potentiometer then click the right mouse button. \nNow the model name and the parameters can be changed. \nThe model file has to be loaded with a .include potentiometer_tapped.lib statement. TEXT -448 1896 Left 0 ;There is a ready to use plot definition file.\n1. Run the simulation\n2. Make the output window the active window. (Click on it.)\n3. PlotSettings->Plot Settings potentiometer_tapped_test.plt TEXT 680 1232 Left 0 ;Resistance at a fixed position wiper=xx