home *** CD-ROM | disk | FTP | other *** search
/ CP/M / CPM_CDROM.iso / mbug / mbug072.arc / ADCON.LBR / ADCON.DOC next >
Text File  |  1979-12-31  |  10KB  |  168 lines
  1. .PO 2
  2. .PL 66
  3. .MT 6
  4. .MB 5
  5. Nicke∞ Cadmiuφ Batter∙ Capacit∙ Testinτ                Marδ Bisho≡ 1.11.87
  6. ---------------------------------------
  7.  
  8.      Electronic≤ Australiß magazinσ iε Jul∙ 198╢ publisheΣ ß simplσ projec⌠ ì
  9. fo≥á aε Analog-Digita∞ Converter¼á whicΦ connect≤ t∩ thσ Microbeσá paralle∞ ì
  10. port«á  Thi≤á projec⌠ enableΣ thσ Microbeσ t∩ measurσ D├ voltage≤ froφ ░á - ì
  11. 5V«  B∙ attachinτ potentiometers¼ thermistors¼ o≥ ligh⌠ dependen⌠ resistor≤ ì
  12. t∩á thσá A-─ converter¼á thσ Microbeσ coulΣ no≈ measurσ al∞ sort≤á oµá rea∞ ì
  13. worlΣ event≤ sucΦ a≤ angula≥ position¼ temperaturσ anΣ light.
  14.  
  15.      Bu⌠á onσá areß tha⌠ interesteΣ mσ wa≤ capacit∙ testinτ anΣ cyclinτá oµ ì
  16. radio-controlleΣ mode∞ aircraf⌠ nickel-cadmiuφ batteries«  T∩ d∩ thi≤ ╔ haΣ ì
  17. t∩ bσ ablσ t∩ measurσ u≡ t∩ 12VDC¼á whicΦ i≤ jus⌠ abovσ thσ maximuφ voltagσ ì
  18. fo≥ aε ╕ cel∞ transmitte≥ pack«  Usinτ ß ┤ Positioε slidσ switcΦ (SP4╘ Dicδ ì
  19. SmitΦá cat«á S-2060⌐á anΣ ┤ ¬ 1k .25╫ 1Ñ resistors¼á ╔á madσá ßá switchablσ ì
  20. potentia∞ divide≥ network«á  Thi≤ networδ no≈ enableΣ readinτ oµ 5¼á 1░ anΣ ì
  21. 2░ vol⌠ ranges.
  22.  
  23.      Softwarσ t∩ calibratσ thσ devicσ wa≤ publisheΣ witΦ thσ E.A«á article¼ ì
  24. a≤ ADCON.MWB«á   T∩ tes⌠ NICAD╙ ╔ wrotσ NICAD.MWB«  BotΦ thesσ program≤ arσ ì
  25. includeΣ iε thσ filσ ADCON.LBR«á  NICAD.MW┬ ask≤ fo≥ thσ numbe≥ oµ cell≤ iε ì
  26. thσá batter∙ pack¼á thσ nomina∞ capacit∙ iε mAH¼á anΣ thσ dischargσ timσ iε ì
  27. minutes«á Thσá prograφ theε calculate≤ anΣ advise≤ wha⌠ loaΣ resistancσá i≤ ì
  28. required«á  Thσ actua∞ valuσ oµ thσ availablσ loaΣ resistancσ i≤ theε askeΣ ì
  29. for¼á anΣ thσ dischargσ timσ i≤ adviseΣ fo≥ thi≤ resistance«á  Thσá settinτ ì
  30. fo≥ thσ potentia∞ divide≥ i≤ als∩ advised«  ╔ dischargσ 50░ mA╚ NICAD╙ ove≥ ì
  31. 2.╡á hour≤ a⌠ 20░ mA¼á  anΣ usσ ╡ wat⌠ resistor≤ a≤ ß load«á (Thσ resistor≤ ì
  32. makσ ß gooΣ heater).
  33.  
  34.      A≤á thσ tes⌠ progresses¼á thσ voltage¼á timσ iε minute≤ anΣ cumulativσ ì
  35. capacit∙á iε mA╚ anΣ Ñ i≤ given«á  Wheε thσ voltagσ reache≤ 1.▒á volt≤á pe≥ ì
  36. cel∞ aε alarφ i≤ giveε t∩ terminatσ thσ test«á Makσ surσ yo⌡ arσ iε earsho⌠ ì
  37. t∩ bσ ablσ t∩ disconnec⌠ thσ battery¼á a≤ thσ voltagσ drop≤ rapidl∙ a⌠ thi≤ ì
  38. poin⌠ anΣ thσ pacδ wil∞ bσ ruineΣ iµ alloweΣ t∩ full∙ discharge«á  (Onσ da∙ ì
  39. ╔á wil∞ pu⌠ ß rela∙ iε thσ dischargσ circui⌠ anΣ contro∞ i⌠ througΦ anothe≥ ì
  40. bi⌠ oε thσ paralle∞ por⌠, t∩ automaticall∙ disconnec⌠ thσ battery.⌐   
  41.  
  42.      WitΦ thσ alarm¼á ß messagσ say≤ t∩ disconnec⌠ thσ A-─á Converter¼á anΣ ì
  43. connec⌠ thσ printer«  ┴ grapΦ oµ voltage/cel∞ agains⌠ timσ i≤ theε printed¼ ì
  44. alonτ witΦ detail≤ oµ thσ test«  
  45.  
  46.      A≤ thσ E.A«á A-─ Converte≥ projec⌠ i≤ constructeΣ oε veroboarΣ anΣ no⌠ ì
  47. oε ß commerciall∙ availablσ printeΣ circui⌠ board¼á detail≤ onl∙ seeφ t∩ bσ ì
  48. availablσá iε thσ Jul∙ 198╢ magazine«á  Becausσ oµ this¼á anΣ als∩á becausσ ì
  49. therσá arσ ┤ error≤ iε thσ publisheΣ wirinτ diagram¼á ╔ havσ presenteΣá thσ ì
  50. projec⌠á detail≤á below«á  Therσ mus⌠ bσ hundred≤ oµ othe≥á use≤á fo≥á thi≤ ì
  51. A-─á Converte≥á project¼á jo⌠á theφ dowε anΣ senΣ theφ iε t∩á thσá Catcher«   ì
  52. Regards¼  M.B«  
  53.  
  54.  
  55. .PAèANALOG - DIGITAL CONVERTER   Electronics Australia July 1986 P.98
  56. --------------------------
  57.  
  58. Veroboard component side links and track cuts (viewed from component side)
  59.  
  60.                             1                   2                   3
  61.           1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0
  62.         ---------------------------------------------------------------
  63.         |=========================.===================================| 1
  64.         |==========================\==   ===.=========================| 2
  65.         |==========================|==   ===|======= =================| 3
  66.         |==========================|==   ===|=========================| 4
  67.         |========= ================|==   ===|=========================| 5 
  68.         |==========================|==   ===|=========== =============| 6
  69.         |=============== ==========/==   ===|=========================| 7
  70.         |=========================.===   ===|===== ===================| 8
  71.         |===================================.=========================| 9
  72.         ---------------------------------------------------------------
  73.           1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0
  74.  
  75.  
  76. Component layout (from component side)
  77.                                              link
  78.                           /---------------------------------\
  79.                           | 1                   2           |       3
  80.           1 2 3 4 5 6 7 8 | 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 | 7 8 9 0
  81.         ------------------|---------------------------------|----------
  82. GND--.----.   .         . |R2  R8                           |         | 1
  83. GND--|  |     #  R3     | | .   .   .1\ / .             R17 |         | 2
  84.         |  R10#   .     | | # . #   .     .   R9. R16 R7  . | .       | 3
  85.         |     #   #     | . # # # . .     .     # .   .   # | |       | 4
  86. REF-------.   . . # . (C1)  # # . . . IC1 .   . # #   #   # | - D1    | 5
  87. DIG OUT---.     # # |  +|   . #   C2.     .   # . .   #   # . .       | 6
  88. VIN-------.  R11# . |   |     # .   .     . R5# .     #   .           | 7
  89.         |       #   |   |   R1# #R4 .     .   # .R6 . .               | 8
  90. +5V-------.     .   |   .     . .             .     |                 | 9
  91.         ------------|-------------------------------|------------------
  92.           1 2 3 4 5 | 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 | 3 4 5 6 7 8 9 0
  93.                     \-------------------------------/
  94.                                    link
  95.  
  96. PARTS LIST
  97. ----------
  98.  
  99. IC1    LM3900 quad op amp             R1      4.7 M  5%   all .25W
  100. D1     1N914 or 1N4148                R2      2.2 M  5%
  101. C1     10uF 10vw electrolytic         R3-6    1   M  5%  
  102. C2     .001uF polyester               R7      560 k  5%
  103.                                       R8      470 k  5%           
  104. Veroboard 2.5 * 8 cm                  R9      10  k  5%
  105. DB 15P plug                           R10-15  1   k  1%
  106. Case 28 * 54 * 83 mm                  R16     1.2 M  5%
  107. 2 Banana sockets (red & black)        R17     1   k  5%
  108. 4 Position slide switch (SP4T)        
  109. .PAèA-D CONVERTER
  110. -------------
  111.                           1N914         1k
  112.            .---------------|<-----------###------------------.             
  113.            |    .001uF                               1M      |             
  114.            .-----||----.                        .----###-----.             
  115.            |    LM3900 |            1.2M        |            |              
  116.            .---| \     |       .----###----.    .---| \      |             
  117.               3|   \4  | 560k  |           |       8|   \9   |
  118.                |IC1a>--.--###--.---| \     |        |IC1c>---.              
  119.       1M      2|   /   |         12|   \10 | 10k  13|   /                   
  120. VIN .-###--.---| /     |           |IC1b>--.--###---| /                      
  121.            |           |         11|   /                                   
  122.            | 4.7M      |   1M  .---| /                                     
  123.            .-###-.-----)--###--|                                         
  124.                  |     |                                                   
  125.                  .-----)---------------.-----------.----------. +5V        
  126.                  |     |          2.2M |           |                      
  127.                  |     |       .--###--)---.      +|                      
  128.                  |     |  470k |       |   |       = 10uF                   
  129.                  |     .--###--.---| \ |14 |      -| 10vw                 
  130.                  |                1|   \5  |       |                      
  131.                  |                 |IC1d>--.-------)----------. DIGITAL   
  132.                  |        1M      6|   /7          |              OUT     
  133.                  .--------###------| / |           |                      
  134.            1k 1% #                     |           |                      
  135.  REF .-----------.                     |           |                      
  136.            1k 1% #                     |           |                      
  137.  GND .-----------.---------------------.-----------.----------. GND       
  138.                  |                                                        
  139.                -----                                                      
  140.                 ---           
  141.                  -                                                        
  142.                                                                           
  143.  
  144. DB15P CONNECTIONS                           SWITCH & SOCKET CONNECTIONS
  145. -----------------                           ---------------------------
  146.  
  147. pin 1  --- +5V                                      .------------ REF       
  148. pin 8  --- GND                                      |--     -|   (2.5V)
  149. pin 13 --- DIG OUT                                           |
  150.                                                              |
  151.                  .-------.---> RED SOCKET --- VIN --.--<-----|   SP4T
  152.                  |       |                          #        |  switch
  153.                  | +     |                          #        |
  154.                  -       |             R12-15       .--     -|
  155.                 ---      #                          #        |
  156.                  -       # LOAD                     #        |--- VIN
  157.       NICADS    ---      # RESISTOR           VIN/2 .--     -|
  158.        under     -       #                          #        |
  159.        test     ---      #                          #        |
  160.                  -       |                    VIN/4 .--     -|
  161.                 ---      |                          #         
  162.                  |       |                          #         
  163.                  .-------.---> BLACK SOCKET --------.------------ GNDè
  164.  
  165.                                       ? 
  166.                             ----ooo-{O.O}-ooo----
  167.                                      { }                           
  168.