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Text File  |  1993-02-18  |  1KB  |  56 lines
  1. ; VisSim Block Diagram Format (VBDF)
  2. ; Copyright (C) 1989-1992 Visual Solutions
  3. PV=1.200
  4. PS=0
  5. PE=13
  6. PP=0.001
  7. PI=170
  8. PX=0.001
  9. PN=1e-006
  10. PF=10
  11. PD=800x600
  12. Pf=0x0
  13. Ps=1560,0,0,1065,0,0
  14. PM=1,1,1,1
  15. N.1="comment"@42x14@730x142<M>
  16. C="BandPass filter        
  17. Bandpass Filter derived  from a normalized (Cutoff Frequency = 1 r/s) 2d order Butterworth Low Pass Filter.
  18. The following Frequency Transformation is applied to the Low pass filter transfer function: 
  19.  s = (s^2 + w1*w2) / s
  20.  
  21. Original 2d order Butterworth LPF;  T(s) = 1 / (s^2 + 1.414s + 1)  Poles: -.7 +/- j.7
  22. After the Transformation:T(s) = s^2  / (s^4 + 1.414s^3 + 6913s^2 + 4886s + 11943936)"
  23. N.2="integrator"(0,2)@174x294<M>
  24. N.3="summingJunction"(0)@60x266#5,1<M>
  25. N.4="integrator"(0,3)@258x294<M>
  26. N.5="integrator"(0,0)@342x294<M>
  27. N.6="integrator"(0,1)@444x294<M>
  28. N.7="gain"(1.414)@54x350<MR>
  29. N.8="gain"(6913)@42x378<MR>
  30. N.9="gain"(4886)@30x406<MR>
  31. N.10="gain"(11943936)@12x434<MR>
  32. N.11="Compound"@0x0#1,1<C>
  33. n="bandpass"
  34. Ms=1560,0,0,1065,0,0
  35. N.12="wirePositioner"@318x266<M>
  36. I.2.i1=3.o1
  37. I.3.i1=11.i1
  38. f3.2.i=-
  39. I.3.i2=10.o1
  40. f3.3.i=-
  41. I.3.i3=9.o1
  42. f3.4.i=-
  43. I.3.i4=8.o1
  44. f3.5.i=-
  45. I.3.i5=7.o1
  46. I.4.i1=2.o1
  47. I.5.i1=4.o1
  48. I.6.i1=5.o1
  49. I.7.i1=2.o1
  50. I.8.i1=4.o1
  51. I.9.i1=5.o1
  52. I.10.i1=6.o1
  53. G.11=1,2,3,4,5,6,7,8,9,10,12,
  54. I.11.o1=12.o1
  55. I.12.i1=4.o1
  56.