CAAD 2.0       * TEKNISK BIBLIOTEK *       (ed. 1993)

                  INTER MERCADOR GMBH & CO.KG, Bremen.

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      INDHOLD:

   Formler for delefilterberegning.

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   Delefilterberegnig:

   Benyttede symboler:

 

   fo  :  delefilter frekvens i to-vejs system                       (Hz)

   fo1 :  delefilter frekvens mellem bas og mellemtone               (Hz)

 

   fo2 :  delefilter frekvens mellem mellemtone og diskant           (Hz)

   fo3 :  delefilter frekvens mellem diskant og superdiskant         (Hz)

 

   Zb  :  impedans af bas                                           (Ohm)

   Zm  :  impedans af mellemtoneenhed                               (Ohm)

   Zt  :  impedans af diskantenhed                                  (Ohm)

   Zs  :  impedans af superdiskant enhed                            (Ohm)

   L   :  beregnet spolevrdi, milli Henry                           (mH)

 

   C   :  beregnet kondensatorvrdi, mikro Farad                     (uF)

 

   (L & C med suffix 1-12 svarende til den aktuelle position i diagrammet

   som vist p† skrmen)

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      FRSTE-ORDENS BUTTERWORTH delefilter ( 6 dB/oktav):

 

   2-vejs  6 dB BW (med eksempler):                      (2500 Hz, 8 Ohm)

   ----------------------------

   L1 = 159.15494*Zbm/fo   = mH       (bas/mellemtone)            (0.509)

 

                                      (fase normal)

   C1 = 159154.94/(Zt*fo)  = uF       (diskant, fase normal)      (7.957)

 

   3-vejs  6 dB BW (med eksempler):                 (500/3000 Hz, 8 Ohm)

   ----------------------------

   L1 = 159.15494*Zb/fo1   = mH       (bas, fase normal)          (2.546)

 

   C1 = 159154.94/(Zm*fo1) = uF       (mellemtone)                (39.78)

   L2 = 159.15494*Zm/fo2   = mH       (fase normal)               (0.424)

 

   C2 = 159154.94/(Zt*fo2) = uF       (diskant, fase normal)      (6.631)

 

   4-vejs  6 dB BW (med eksempler):             (200/2200/9000 Hz, 8 Ohm)

   ----------------------------

   L1 = 159.15494*Zb/fo1   = mH       (bas, fase normal)          (6.366)

 

   C1 = 159154.94/(Zm*fo1) = uF       (mellemtone)                (99.47)

   L2 = 159.15494*Zm/fo2   = mH       (fase normal)               (0.578)

 

   C2 = 159154.94/(Zt*fo2) = uF       (diskant)                   (9.042)

   L3 = 159.15494*Zt/fo3   = mH       (fase normal)               (0.141)

 

   C3 = 159154.94/(Zs*fo3) = uF       (SUPERTWT, fase normal)     (2.210)

   ----------------------------------------------------------------------

 

ANDEN-ORDENS BUTTERWORTH delefilter  (12 dB/oktav):

 

   2-vejs 12 dB BW (med eksempler):                      (2500 Hz, 8 Ohm)

   ----------------------------

   L1 = 225.07908*Zbm/fo   = mH       (bas/mellemtone)            (0.720)

   C1 = 112539.54/(Zbm*fo) = uF       (fase normal)               (5.627)

 

   L2 = 225.07908*Zt/fo    = mH       (diskant)                   (0.720)

 

   C2 = 112539.54/(Zt*fo)  = uF       (fase vendt)                (5.627)

 

   3-vejs 12 dB BW (med eksempler):                  (500/3000 Hz, 8 Ohm)

   ----------------------------

   L1 = 225.07908*Zb/fo1   = mH       (bas)                       (3.601)

   C1 = 112539.54/(Zb*fo1) = uF       (fase normal)               (28.13)

 

   C2 = 112539.54/(Zm*fo1) = uF       (mellemtone)                (28.13)

   L2 = 225.07908*Zm/fo1   = mH       (fase vendt)                (3.601)

 

   L3 = 225.07908*Zm/fo2   = mH                                   (0.600)

   C3 = 112539.54/(Zm*fo2) = uF                                   (4.689)

 

   C4 = 112539.54/(Zt*fo2) = uF       (diskant)                   (4.689)

   L4 = 225.07908*Zt/fo2   = mH       (fase normal)               (0.600)

 

   4-vejs 12 dB BW (med eksempler):             (200/2200/9000 Hz, 8 Ohm)

   ----------------------------

   L1 = 225.07908*Zb/fo1   = mH       (bas)                       (9.003)

 

   C1 = 112539.54/(Zb*fo1) = uF       (fase normal)               (70.33)

 

   C2 = 112539.54/(Zm*fo1) = uF       (mellemtone)                (70.33)

   L2 = 225.07908*Zm/fo1   = mH       (fase vendt)                (9.003)

   L3 = 225.07908*Zm/fo2   = mH                                   (0.818)

   C3 = 112539.54/(Zm*fo2) = uF                                   (6.394)

 

   C4 = 112539.54/(Zt*fo2) = uF       (diskant)                   (6.394)

   L4 = 225.07908*Zt/fo2   = mH       (fase normal)               (0.818)

 

   L5 = 225.07908*Zt/fo3   = mH                                   (0.200)

   C5 = 112539.54/(Zt*fo3) = uF                                   (1.563)

 

   C6 = 112539.54/(Zs*fo3) = uF       (superdiskant)              (1.563)

   L6 = 225.07908*Zs/fo3   = mH       (fase vendt)                (0.200)

   ----------------------------------------------------------------------

 

     ANDEN-ORDENS LINKWITZ-RILEY delefilter  (12 dB/oktav):

 

   2-vejs 12 dB LR (med eksempler):                      (2500 Hz, 8 Ohm)

 

   ----------------------------

   L1 = 318.30988*Zbm/fo   = mH       (bas/mellemtone)            (1.018)

   C1 = 79577.471/(Zbm*fo) = uF       (fase normal)               (3.978)

 

   L2 = 318.30988*Zt/fo    = mH       (diskant)                   (1.018)

   C2 = 79577.471/(Zt*fo)  = uF       (fase vendt)                (3.978)

 

   3-vejs 12 dB LR (med eksempler):                  (500/3000 Hz, 8 Ohm)

   ----------------------------

   L1 = 318.30988*Zb/fo1   = mH       (bas)                       (5.092)

 

   C1 = 79577.471/(Zb*fo1) = uF       (fase normal)               (19.89)

 

   C2 = 79577.471/(Zm*fo1) = uF       (mellemtone)                (19.89)

   L2 = 318.30988*Zm/fo1   = mH       (fase vendt)                (5.092)

   L3 = 318.30988*Zm/fo2   = mH                                   (0.848)

   C3 = 79577.471/(Zm*fo2) = uF                                   (3.315)

 

   C4 = 79577.471/(Zt*fo2) = uF       (diskant)                   (3.315)

   L4 = 318.30988*Zt/fo2   = mH       (fase normal)               (0.848)

 

   4-vejs 12 dB LR (med eksempler):             (200/2200/9000 Hz, 8 Ohm)

   ----------------------------

   L1 = 318.30988*Zb/fo1   = mH       (bas)                       (12.73)

   C1 = 79577.471/(Zb*fo1) = uF       (fase normal)               (49.73)

 

   C2 = 79577.471/(Zm*fo1) = uF       (mellemtone)                (49.73)

   L2 = 318.30988*Zm/fo1   = mH       (fase vendt)                (12.73)

   L3 = 318.30988*Zm/fo2   = mH                                   (1.157)

 

   C3 = 79577.471/(Zm*fo2) = uF                                   (4.521)

 

   C4 = 79577.471/(Zt*fo2) = uF       (diskant)                   (4.521)

   L4 = 318.30988*Zt/fo2   = mH       (fase normal)               (1.157)

   L5 = 318.30988*Zt/fo3   = mH                                   (0.282)

   C5 = 79577.471/(Zt*fo3) = uF                                   (1.105)

 

   C6 = 79577.471/(Zs*fo3) = uF       (superdiskant)              (1.105)

   L6 = 318.30988*Zs/fo3   = mH       (fase vendt)                (0.282)

 

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     TREDIE-ORDENS BUTTERWORTH delefilter (18 dB/oktav):

 

   2-vejs 18 dB BW (med eksempler):                      (2500 Hz, 8 Ohm)

   ----------------------------

   L1 = 238.73241*Zbm/fo   = mH       (bas/mellemtone)            (0.763)

   C1 = 212206.59/(Zbm*fo) = uF       (fase normal)               (10.61)

   L2 = 79.577471*Zbm/fo   = mH                                   (0.254)

 

   C2 = 106103.29/(Zt*fo)  = uF       (diskant)                   (5.305)

 

   L3 = 119.36620*Zt/fo    = mH       (fase normal)               (0.381)

   C3 = 318309.88/(Zt*fo)  = uF                                   (15.91)

 

   3-vejs 18 dB BW (med eksempler):                  (500/3000 Hz, 8 Ohm)

   ----------------------------

   L1 = 238.73241*Zb/fo1   = mH       (bas)                       (0.763)

   C1 = 212206.59/(Zb*fo1) = uF       (fase normal)               (10.61)

   L2 = 79.577471*Zb/fo1   = mH                                   (0.254)

 

   C2 = 106103.29/(Zm*fo1) = uF       (mellemtone)                (26.52)

   L3 = 119.36620*Zm/fo1   = mH       (fase vendt)                (1.909)

   C3 = 318309.88/(Zm*fo1) = uF                                   (79.57)

   L4 = 238.73241*Zm/fo2   = mH                                   (0.636)

   C4 = 212206.59/(Zm*fo2) = uF                                   (8.841)

   L5 = 79.577471*Zm/fo2   = mH                                   (0.212)

 

   C5 = 106103.29/(Zt*fo2) = uF       (diskant)                   (4.420)

 

   L6 = 119.36620*Zt/fo2   = mH       (fase normal)               (0.318)

   C6 = 318309.88/(Zt*fo2) = uF                                   (13.26)

 

   4-vejs 18 dB BW (med eksempler):             (200/2200/9000 Hz, 8 Ohm)

   ----------------------------

   L1 = 238.73241*Zb/fo1   = mH       (bas)                       (9.549)

   C1 = 212206.59/(Zb*fo1) = uF       (fase normal)               (132.6)

   L2 = 79.577471*Zb/fo1   = mH                                   (3.183)

 

   C2 = 106103.29/(Zm*fo1) = uF       (mellemtone)                (66.31)

   L3 = 119.36620*Zm/fo1   = mH       (fase vendt)                (4.774)

   C3 = 318309.88/(Zm*fo1) = uF                                   (198.9)

   L4 = 238.73241*Zm/fo2   = mH                                   (0.868)

   C4 = 212206.59/(Zm*fo2) = uF                                   (12.05)

   L5 = 79.577471*Zm/fo2   = mH                                   (0.289)

 

   C5 = 106103.29/(Zt*fo2) = uF       (diskant)                   (6.028)

 

   L6 = 119.36620*Zt/fo2   = mH       (fase normal)               (0.434)

   C6 = 318309.88/(Zt*fo2) = uF                                   (18.08)

   L7 = 238.73241*Zt/fo3   = mH                                   (0.212)

   C7 = 212206.59/(Zt*fo3) = uF                                   (2.947)

   L8 = 79.577471*Zt/fo3   = mH                                   (0.070)

 

   C8 = 106103.29/(Zs*fo3) = uF       (superdiskant)              (1.473)

   L9 = 119.36620*Zs/fo3   = mH       (fase normal)               (0.106)

 

   C9 = 318309.88/(Zs*fo3) = uF                                   (4.420)

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     FJERDE-ORDENS BUTTERWORTH delefilter (24 dB/oktav):

 

   2-vejs 24 dB BW (med eksempler):                      (2500 Hz, 8 Ohm)

   ----------------------------

   L1 = 243.62383*Zbm/fo   = mH       (bas/mellemtone)            (0.779)

   C1 = 251012.97/(Zbm*fo) = uF       (fase normal)               (12.55)

   L2 = 172.26806*Zbm/fo   = mH                                   (0.551)

 

   C2 = 60905.959/(Zbm*fo) = uF                                   (3.045)

 

   C3 = 103972.97/(Zt*fo)  = uF       (diskant)                   (5.198)

   L3 = 100.91298*Zt/fo    = mH       (fase normal)               (0.322)

   C4 = 147039.99/(Zt*fo)  = uF                                   (7.351)

   L4 = 415.89190*Zt/fo    = mH                                   (1.330)

 

   3-vejs 24 dB BW (med eksempler):                  (500/3000 Hz, 8 Ohm)

   ----------------------------

 

   L1 = 243.62383*Zb/fo1   = mH       (bas)                       (3.897)

   C1 = 251012.97/(Zb*fo1) = uF       (fase normal)               (62.75)

   L2 = 172.26806*Zb/fo1   = mH                                   (2.756)

   C2 = 60905.959/(Zb*fo1) = uF                                   (15.22)

 

   C3 = 103972.97/(Zm*fo1) = uF       (mellemtone)                (25.99)

   L3 = 100.91298*Zm/fo1   = mH       (fase normal)               (1.614)

   C4 = 147039.99/(Zm*fo1) = uF                                   (36.75)

 

   L4 = 415.89190*Zm/fo1   = mH                                   (6.654)

   L5 = 243.62383*Zm/fo2   = mH                                   (0.649)

   C5 = 251012.97/(Zm*fo2) = uF                                   (10.45)

   L6 = 172.26806*Zm/fo2   = mH                                   (0.459)

   C6 = 60905.959/(Zm*fo2) = uF                                   (2.537)

 

   C7 = 103972.97/(Zt*fo2) = uF       (diskant)                   (4.332)

   L7 = 100.91298*Zt/fo2   = mH       (fase normal)               (0.269)

 

   C8 = 147039.99/(Zt*fo2) = uF                                   (6.126)

   L8 = 415.89190*Zt/fo2   = mH                                   (1.109)

 

   4-vejs 24 dB BW (med eksempler):             (200/2200/9000 Hz, 8 Ohm)

   ----------------------------

   L1 = 243.62383*Zb/fo1   = mH       (bas)                       (9.744)

   C1 = 251012.97/(Zb*fo1) = uF       (fase normal)               (156.8)

   L2 = 172.26806*Zb/fo1   = mH                                   (6.890)

 

   C2 = 60905.959/(Zb*fo1) = uF                                   (38.06)

 

   C3 = 103972.97/(Zm*fo1) = uF       (mellemtone)                (64.98)

   L3 = 100.91298*Zm/fo1   = mH       (fase normal)               (4.036)

   C4 = 147039.99/(Zm*fo1) = uF                                   (91.89)

   L4 = 415.89190*Zm/fo1   = mH                                   (16.63)

   L5 = 243.62383*Zm/fo2   = mH                                   (0.885)

   C5 = 251012.97/(Zm*fo2) = uF                                   (14.26)

 

   L6 = 172.26806*Zm/fo2   = mH                                   (0.626)

   C6 = 60905.959/(Zm*fo2) = uF                                   (3.460)

 

   C7 = 103972.97/(Zt*fo2) = uF       (diskant)                   (5.907)

   L7 = 100.91298*Zt/fo2   = mH       (fase normal)               (0.366)

   C8 = 147039.99/(Zt*fo2) = uF                                   (8.354)

   L8 = 415.89190*Zt/fo2   = mH                                   (1.512)

   L9 = 243.62383*Zt/fo3   = mH                                   (0.216)

 

   C9 = 251012.97/(Zt*fo3) = uF                                   (3.486)

  L10 = 172.26806*Zt/fo3   = mH                                   (0.153)

  C10 = 60905.959/(Zt*fo3) = uF                                   (0.845)

 

  C11 = 103972.97/(Zs*fo3) = uF       (superdiskant)              (1.444)

  L11 = 100.91298*Zs/fo3   = mH       (fase normal)               (0.089)

  C12 = 147039.99/(Zs*fo3) = uF                                   (2.042)

  L12 = 415.89190*Zs/fo3   = mH                                   (0.369)

 

  -----------------------------------------------------------------------

 

     FJERDE-ORDENS LINKWITZ-RILEY delefilter (24 dB/oktav):

 

   2-vejs 24 dB LR (med eksempler):                      (2500 Hz, 8 Ohm)

   ----------------------------

   L1 = 300.10543*Zbm/fo   = mH       (bas/mellemtone)            (0.960)

   C1 = 253213.96/(Zbm*fo) = uF       (fase normal)               (12.66)

   L2 = 150.05271*Zbm/fo   = mH                                   (0.480)

   C2 = 56269.769/(Zbm*fo) = uF                                   (2.813)

 

   C3 = 84404.654/(Zt*fo)  = uF       (diskant)                   (4.220)

   L3 = 100.03514*Zt/fo    = mH       (fase normal)               (0.320)

   C4 = 168809.30/(Zt*fo)  = uF                                   (8.440)

   L4 = 450.15815*Zt/fo    = mH                                   (1.440)

 

   3-vejs 24 dB LR (med eksempler):                  (500/3000 Hz, 8 Ohm)

   ----------------------------

   L1 = 300.10543*Zb/fo1   = mH       (bas)                       (4.801)

 

   C1 = 253213.96/(Zb*fo1) = uF       (fase normal)               (63.30)

   L2 = 150.05271*Zb/fo1   = mH                                   (2.400)

   C2 = 56269.769/(Zb*fo1) = uF                                   (14.06)

 

   L3 = 300.10543*Zm/(fo2-fo1)           = mH    (mellemtone)     (0.960)

   C3 = 84404.654*(fo2-fo1)/(Zm*fo1*fo2) = uF    (fase normal)    (17.58)

   L4 = 100.03514*Zm*(fo2-fo1)/(fo1*fo2) = mH                     (1.333)

   C4 = 253213.96/(Zm*(fo2-fo1))         = uF                     (12.66)

 

   L5 = 150.05271*Zm/(fo2-fo1)           = mH                     (0.480)

   C5 = 168809.30*(fo2-fo1)/(Zm*fo1*fo2) = uF                     (35.16)

   L6 = 450.15815*Zm*(fo2-fo1)/(fo1*fo2) = mH                     (6.002)

   C6 = 56269.769/(Zm*(fo2-fo1))         = uF                     (2.813)

 

   C7 = 84404.654/(Zt*fo2) = uF       (diskant)                   (3.516)

   L7 = 100.03514*Zt/fo2   = mH       (fase normal)               (0.266)

   C8 = 168809.30/(Zt*fo2) = uF                                   (7.033)

 

   L8 = 450.15815*Zt/fo2   = mH                                   (1.200)

 

   4-vejs 24 dB LR (med eksempler):             (200/2200/9000 Hz, 8 Ohm)

   ----------------------------

   L1 = 300.10543*Zb/fo1   = mH       (bas)                       (12.00)

   C1 = 253213.96/(Zb*fo1) = uF       (fase normal)               (158.2)

   L2 = 150.05271*Zb/fo1   = mH                                   (6.002)

   C2 = 56269.769/(Zb*fo1) = uF                                   (35.16)

 

   L3 = 300.10543*Zm/(fo2-fo1)           = mH    (mellemtone)     (1.200)

   C3 = 84404.654*(fo2-fo1)/(Zm*fo1*fo2) = uF    (fase normal)    (47.95)

   L4 = 100.03514*Zm*(fo2-fo1)/(fo1*fo2) = mH                     (3.637)

   C4 = 253213.96/(Zm*(fo2-fo1))         = uF                     (15.82)

   L5 = 150.05271*Zm/(fo2-fo1)           = mH                     (0.600)

   C5 = 168809.30*(fo2-fo1)/(Zm*fo1*fo2) = uF                     (95.91)

   L6 = 450.15815*Zm*(fo2-fo1)/(fo1*fo2) = mH                     (16.36)

 

   C6 = 56269.769/(Zm*(fo2-fo1))         = uF                     (3.516)

 

   L7 = 300.10543*Zt/(fo3-fo2)           = mH    (diskant)        (0.353)

   C7 = 84404.654*(fo3-fo2)/(Zt*fo2*fo3) = uF    (fase normal)    (3.623)

   L8 = 100.03514*Zt*(fo3-fo2)/(fo2*fo3) = mH                     (0.274)

   C8 = 253213.96/(Zt*(fo3-fo2))         = uF                     (4.654)

   L9 = 150.05271*Zt/(fo3-fo2)           = mH                     (0.176)

   C9 = 168809.30*(fo3-fo2)/(Zt*fo2*fo3) = uF                     (7.246)

 

  L10 = 450.15815*Zt*(fo3-fo2)/(fo2*fo3) = mH                     (1.236)

  C10 = 56269.769/(Zt*(fo3-fo2))         = uF                     (1.034)

 

  C11 = 84404.654/(Zs*fo3) = uF       (superdiskant)              (1.172)

  L11 = 100.03514*Zs/fo3   = mH       (fase normal)               (0.088)

  C12 = 168809.30/(Zs*fo3) = uF                                   (2.344)

  L12 = 450.15815*Zs/fo3   = mH                                   (0.400)

  -----------------------------------------------------------------------