OrCADマニュアル - akita-nct.jp

1 OrCAD .. SPICE(Simulation Program with Integrated Circuit Emphasis ) 1970 .. SPICE .. Cadence Design Systems OrCAD . Capture Pspice . LAN .. OrCAD DEMO DEMO . DEMO .. CR .. -1- . Capture . Capture CAD .. [File] [New] [Project] "New Project" "Name" test1 . "Analog or Mixed Signal Circuit Wizard" "Location". "C: Documents and Settings All Users Documents 5E_experiment". "Browse" "OK" . " " .. [Place] [Part] "Place Part" "Libraries" "ANALOG". "Part List" "C" "OK" . "End Mode" .. -2- .. [Place] [Part] "Place Ground" . "Libraries" "ANALOG" "Part List" "R" "OK" . "Rotate" 90 . C R .. "End Mode" .. [Place] [Part] "Place Part" "Libraries" "SOURCE" . "Part List" "VAC" "OK" . "End Mode" . VAC DC AC DC=0V AC. 1V .. [Place] [Ground] "Place Ground" . "Symbol" "0" "0/source" "OK".. "End Mode" .. [Place] [ Wire].

2 AC SWEEP .. [PSpice] [New Simulation Profile] "New Simulation" "Name" . test1-1 "Create" .. -3- "Simulation Settings" . "Analysis type" "AC Sweep/Noise" . "Options" "General Settings" .. "AC Sweep Type" "Start Frequency" "End Frequency". 100Hz . 100kHz "Points/Decade" 20 . " " "OK" . [ PSpice] [ Markers] . [Advanced] [dB Magnitude of Voltage] (dB. ) . "End Mode" . [PSpice] [Markers] [Advanced] [Phase of Voltage].. "End Mode" .. [PSpice] [Run] Pspice .. "1n" "Display Properties" . "Value" 10n "OK" . 10n . "1k" "Display Properties" . "Value" 20k "OK" 20k .. 10000 . 10k 1 . meg . -4- .. f 10-15 .. -12. p 10.. -9. n 10. u 10-6 .. -3. m 10.. 3. k 10. meg 106 .. 9. g 10.. 12. t 10. [PSpice] [Run] .. Time Domain . [PSpice] [New Simulation profiles] "Name". test1-2 "Simulation Settings" "Analysis type".

3 "Time Domain( Transient) " "Options" "General Settings" .. "Run to time" 10m " " "OK" . 0 10ms . "VAC" . [Place] [Part] "Place Part". "Libraries" "SOURCE" "Part List" "VPULSE" . "OK" "VAC" . "End Mode" "VPULSE" . V1 V2 TD TR TF . PW PER . V1 0V V2 1V TD 0s TR 0s TF 0s PW 1ms PER 2ms .. -5- . Delete . "Delete" . [PSpice] [Markers] [Voltage Level] .. [PSpice] [Run] .. "Simulation Settings" .. "Transient Options" Maximum step size" 1u . [PSpice] [Run] .. VDB VP . V1 . V2 . V2. VDB = 20 log [dB]. V1. VP V1 V2 [deg].. VDB VP .. [Plot] [Add Y Axis] .. [Trace] [Add Trace] . "Add Settings" .. "Trace Expression:".. del .. -6- . "Toggle cursor" . [ Trace] [ cursor] [ Display] . "Probe Cursor" . A1 .. CR . C1. 10[pF] 11 8 11080p R1 . [k ] 180 80k . 3dB . RC . C1. R1 CR . 3dB .. OP . National Semiconductor OP LF411 OP [Place].

4 [ Part] "Libraries" "Nat_semi" "LF411/NS" "SOURCE". "VDC" 12 VDC .. "VAC" . "VSRC" . "VSRC" "AC " "DC "TRAN " TRAN. "TRAN sin(0V 1V 1kHz 0s 0 0) .. [dB] 20[dB] . 20[dB] . R1 1[k ] . 98dB 98 49 20dB .. -7.