1. 實習十八 無穩態多諧振盪器

12. R=100K, C=0.1uf ： Vo 、 Vc

13. Pspice 模擬 -ua741 model 1. *--------------------------------------------------------- 2. * connections: non-inverting input 3. * | inverting input 4. * | | positive power supply 5. * | | | negative power supply 6. * | | | | output 7. * | | | | | 8..subckt uA741 1 2 3 4 5 9. * 10. vb 9 0 dc 0 11. vc 3 53 dc 1 12. ve 54 4 dc 1 13. vlim 7 8 dc 0 14. vlp 91 0 dc 40 15. vln 0 92 dc 40 16. c1 11 12 8.661E-12 17. c2 6 7 30.00E-12 18. dc 5 53 dy 19. de 54 5 dy 20. dlp 90 91 dx 21. dln 92 90 dx 22. dp 4 3 dx 23. egnd 99 0 poly(2) 3 0 4 0 0.5.5 24. fb 7 99 poly(3) vb vc ve 0 10.61E6 -1E3 1E3 25. ga 6 0 11 12 188.5E-6 26. gcm 0 6 10 99 5.961E-9 27. iee 10 4 dc 15.16E-6 28. hlim 90 0 vlim 1K 29. q1 11 2 13 qx 30. q2 12 1 14 qx 31. r2 6 9 100.0E3 32. rc1 3 11 5.305E3 33. rc2 3 12 5.305E3 34. re1 13 10 1.836E3 35. re2 14 10 1.836E3 36. ree 10 99 13.19E6 37. ro1 8 5 50 38. ro2 7 99 100 39. rp 3 4 18.16E3 40..ends uA741 41..model dx D(Is=800.0E-18 Rs=1) 42..model dy D(Is=800.00E-18 Rs=1m Cjo=10p) 43..model qx NPN(Is=800.0E-18 Bf=93.75) 44.

14. Pspice 模擬 45. ********************************************** 46. * Define model of Zener Diode (Vz=5.6V) * 47. ************************************************* 48..model ZD56D(Is=880.5E-18 Rs=.25 Ikf=0 N=1 Xti=3 Eg=1.11 Cjo=175p 49. +M=.5516 Vj=.75 Fc=.5 Isr=1.859n Nr=2 Bv=5.6 50. +Ibv=20.245m Nbv=1.6989 Ibvl=1.9556m Nbvl=14.976 Tbv1=-21.277u) 51. *Motorolapid=1N750case=DO-35 89-9-18 gjg 52. *Vz = 5.6 @ 20mA, Zz = 300 @ 1mA, Zz = 12.5 @ 5mA, Zz =2.6 @ 20mA 53. 54. ****************************************** 55. * supply voltage of uA741 * 56. ****************************************** 57. vccv+0dc15 58. veev-0dc-15 59. 60.

15. Pspice 模擬 61. ********************************************* 62. * circuit with uA741 to be verified * 63. * connections: non-inverting input 64. * | inverting input 65. * | | positive power supply 66. * | | | negative power supply 67. * | | | | output 68. * | | | | | 69. * uA741 1 2 3 4 5 70. ********************************************* 71. x1 2 1 v+ v-3uA741 72. Rz 3 4 1k 73. R 4 1 100k 74. C 1 0 0.1u IC=3 75. R1 4 2 100k 76. R2 2 0 85k 77. D1 4 5 ZD56 78. D2 0 5 ZD56 79. 80. ************************************************ 81. * category of analysis * 82. ************************************************ 83. 84. *.op 85..tran 0m 60m 0 0.01m 86..probe 87..end 88.

16. Pspice 模擬