低予算電子工作 3.3Vの作り方

ブレッドボードに簡単に安定した3.3Vを供給する方法を解説します

Transcript

1. ௿༧ࢉిࢠ޻࡞
   7ͷ࡞Γํ
   Naomasa Matsubayashi
   

   View Slide

2. ͍·Ͳ͖ͷϚΠίϯ
   7ۦಈ
   

   View Slide

3. סి஑ຊͰ࡞ͬͨ7Ͱಈ͘෺΋ଟ͍͚Ͳ
   

   View Slide

4. 
   
   
   
   
   <7>
   סి஑ͷిѹ͸ঃʑʹԼ͕͍ͬͯ͘
   ˞άϥϑ͸ΠϝʔδͰ͢
   ࠷௿Ͱ΋7Λཁٻ͢ΔσόΠε͕ಈ͚Δ͔ᷮͳظؒ
   

   View Slide

5. ҆ఆͨ͠7Λ࡞Ζ͏
   

   View Slide

6. HOLTEK
   HT7733A
   7Ҏ্ͷೖྗ͔Β
   ࠷େN"ͷ7Λ࡞Δ
   ঢѹ%$%$ίϯόʔλ
   

   View Slide

7. HOLTEK
   HT7733A
   σδοτͰԁ
   http://eleshop.jp/shop/g/g7CJ311/
   

   View Slide

8. HT7733A
   V)
   V' V'
   7Ҏ্7ҎԼͷ
   ԿΒ͔ͷిѹ
   7
   (/%
   -9 7065
   

   View Slide

9. ϒϨουϘʔυͰ૊ΈཱͯΑ͏
   

   View Slide

10. ༻ҙ͢Δ΋ͷ
    ˞͜ͷࣸਅʹ͸ඞཁͳδϟϯύϫΠϠ͕ຊ͍ࣸͬͯͳ͍
    ඞཁͳ෺͸࣍ͷεϥΠυΛ֬ೝ͠Α͏
    

    View Slide

11. ༻ҙ͢Δ΋ͷ
    ϒϨουϘʔυ
    ి஑ϘοΫε୯Y
    ిղίϯσϯαV'
    ిղίϯσϯαV'
    γϣοτΩόϦΞμΠΦʔυ
    ίΠϧV'
    ԁ
    ԁ
    ݸͰԁ
    ݸͰԁ
    ԁ
    ݸͰԁ
    අ༻ͷΊ΍͢
    ෦඼
    

    View Slide

12. ిղίϯσϯαV'
    ిղίϯσϯαV'
    γϣοτΩόϦΞμΠΦʔυ
    ίΠϧV'
    ୯ܗסి஑
    δϟϯύϫΠϠຊ
    ݸͰԁ
    ݸͰԁ
    ԁ
    ݸͰԁ
    ݸͰԁ
    ԁ
    ߹ܭ ηοτลΓԁ
    )5" ԁ
    ॳճʹඞཁͳඅ༻ԁ
    

    View Slide

13. ಈ࡞֬ೝʹඞཁͳ΋ͷ
    

    View Slide

14. ಈ࡞֬ೝʹඞཁͳ΋ͷ
    ॱํ޲ిѹ7Ҏ্ఆ֨N"ͷ-&%
    ఍߅Њ
    ݸͰԁ
    ݸͰԁ
    ߹ܭ ηοτลΓԁ
    අ༻ͷΊ΍͢
    ෦඼
    ॳճʹඞཁͳඅ༻ԁ
    ిࢠ෦඼͸·ͱΊͯങ͏ఔ͍҆
    ͓༑ୡ͕طʹిࢠ޻࡞Λ͍ͯ͠ΔͳΒ
    ͜ΕΒͷ෦඼Λ͍࣋ͬͯͳ͍͔ฉ͍ͯΈΑ͏
    

    View Slide

15. δϟϯύϫΠϠͷ͏ͪຊΛి஑ϘοΫεͷϫΠϠʹܨ͛Δ
    ൒ా͕ͯ͝ແ͍৔߹ηϩϋϯςʔϓͰר͍ͯͬ͘෇͚ͯ΋ྑ͍
    

    View Slide

16. ి஑ͷଆΛGʹɺଆΛͷిݯϨʔϯͷϚε໨ʹ઀ଓ
    

    View Slide

17. K͔ΒిݯϨʔϯͷͷϚε໨ʹV'ͷίϯσϯαΛ෇͚Δ
    ిղίϯσϯαͷ޲͖ʹ஫ҙ7ͷҹ͕͍ͭͨํΛଆʹ
    

    View Slide

18. I͔ΒHʹV)ͷίΠϧΛ઀ଓ
    

    View Slide

19. )5"ΛฏΒͳ໘͕ίΠϧͷํΛ޲͘Α͏ʹGGGʹ઀ଓ
    

    View Slide

20. J͔ΒͷిݯϨʔϯͷϚε໨ʹμΠΦʔυΛ઀ଓ
    

    View Slide

21. HͱͷిݯϨʔϯͷϚε໨ΛδϟϯύϫΠϠͰ઀ଓ
    

    View Slide

22. IͱͷిݯϨʔϯͷϚε໨ΛδϟϯύϫΠϠͰ઀ଓ
    

    View Slide

23. ͷిݯϨʔϯͷϚε໨͔ΒͷిݯϨʔϯͷϚε໨ʹ
    V'ͷిղίϯσϯαΛ઀ଓ ޲͖ʹ஫ҙ
    
    

    View Slide

24. ׬੒
    GND
    3.3V
    

    View Slide

25. ಈ࡞֬ೝ
    

    View Slide

26. סి஑ຊͷిѹ 7
    Ͱ͸ޫΒͳ͍7ͷ-&%
    ஫ҙผʹ͜Μͳߴ͍-&%Ͱͳͯ͘΋ྑ͍
    
    

    View Slide

27. ͷిݯϨʔϯʹЊͷ఍߅Λ઀ଓ
    

    View Slide

28. ఍߅Λܨ͍ͩઌ͔ΒͷిݯϨʔϯʹ-&%Λ઀ଓ
    

    View Slide

29. ޫͬͨ
    

    View Slide

30. 7ͩ
    

    View Slide

31. N"·ͰͱΕΔ
    ిࢠ޻࡞ͰΑ͘࢖͏ϚΠίϯఔ౓ͳΒ༨༟Ͱಈ͔ͤΔ
    

    View Slide

32. HT7733Aͷ୅ΘΓʹ
    HT7750AΛ࢖͑͹
    5VΛ࡞ΕΔ
    

    View Slide

33. ·ͱΊ
    HT7733Aͱز͔ͭͷ෦඼Λ૊Έ߹Θͤͯ
    ҆ఆͨ͠3.3VΛ࡞Δࣄ͕ग़དྷΔ
    

    View Slide