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Text File  |  1994-02-28  |  2KB  |  73 lines
  1. ; VisSim Block Diagram Format (VBDF)
  2. ; Copyright (C) 1989-1994 Visual Solutions
  3. PV=1.500
  4. PS=0
  5. PE=2
  6. PP=0.005
  7. PI=170
  8. PX=0.005
  9. PN=1e-006
  10. PL=5
  11. PT=1e-005
  12. Pn=-8,4,14,"Times New Roman"
  13. Pc=17
  14. Po=0.01,50,664
  15. PD=800x600
  16. Pf=0x0
  17. Pr="stub"
  18. Ps=1566,0,0,1090,0,0
  19. Pd=17
  20. PM=1,1,1,1
  21. N.1="summingJunction"*52x38<M>
  22. N.2="summingJunction"*144x37<M>
  23. N.3="integrator"(0,0)*103x40<M>
  24. N.4="Compound"*0x0#1,1<C>
  25. n="          r1*s+1
  26. Lead  ----------
  27.            r2*s+1"
  28. Ms=690,0,0,476,0,0
  29. N.5="*"*106x33<M>
  30. N.6="wireLabel"*1x40<M>
  31. n="Input signal"
  32. N.7="wireLabel"*172x35<M>
  33. n="Output signal"
  34. N.8="comment"*15x1*170x26<M>
  35. C="Simple Lead filter Model:
  36.  
  37. Models a unity dc gain first order lead filter whose transfer function is: G(s) = (Tau1*s + 1) / (Tau2*s + 1).  The parameters are the time constants of the numerator and denominator.  The dc gain is automatically scaled to unity.  The lag break is at 1/tau2 rad/sec and the lead break is at 1/tau1 rad/sec.
  38.  
  39. For lead action; Tau1 > Tau2.
  40.  
  41. Limitations:
  42. 1.  Tau 2 != 0
  43. 2.  Check simulation stepsize for stability depending on the choice of Tau 2."
  44. N.9="wireLabel"*10x56<M>
  45. n="==== Parameters ===="
  46. N.10="const"(2)*10x60<M>
  47. N.11="const"(1)*10x64<M>
  48. N.12="variable"*30x60<M>
  49. n=":Tau 1"
  50. N.13="variable"*30x64<M>
  51. n=":Tau 2"
  52. N.14="/"*84x39<M>
  53. N.15="variable"*60x44<M>
  54. n=":Tau 2"
  55. N.16="wirePositioner"*75x50<MR>
  56. N.17="variable"*84x33<M>
  57. n=":Tau 1"
  58. I.1.i1=4.i1
  59. f1.2.i=-
  60. I.1.i2=16.o1
  61. I.2.i1=5.o1
  62. I.2.i2=3.o1
  63. I.3.i1=14.o1
  64. G.4=1,3,2,5,6,7,8,9,10,11,12,13,14,15,16,17,
  65. I.4.o1=2.o1
  66. I.5.i1=17.o1
  67. I.5.i2=14.o1
  68. I.12.i1=10.o1
  69. I.13.i1=11.o1
  70. I.14.i1=1.o1
  71. I.14.i2=15.o1
  72. I.16.i1=3.o1
  73.