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A category for topics relating to power supplies, batteries, solar and other power related questions.

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  1. Ghost314

    What type of battery is good for emergency power for blackouts?

    Ghost314, Sep 27, 2018 ... 2
    Replies:
    30
    Views:
    834
    primuspaul
    Oct 1, 2018
  2. H2814D

    Switched Mode Power Supply/Switching Power Supply (SMPS)

    H2814D, Sep 21, 2018 ... 2
    Replies:
    21
    Views:
    942
    kellys_eye
    Sep 28, 2018
  3. Lord_grezington

    Current Limiting

    Lord_grezington, Sep 27, 2018
    Replies:
    6
    Views:
    332
    dave9
    Sep 28, 2018
  4. Theovt

    Solar power 12 volt car windscreen washer pump (Time Adjustable)

    Theovt, Sep 26, 2018
    Replies:
    5
    Views:
    337
    MidNor
    Sep 27, 2018
  5. npomeroy

    24vAC to 9vDC: half wave regulator input?

    npomeroy, Sep 27, 2018
    Replies:
    3
    Views:
    340
    kellys_eye
    Sep 27, 2018
  6. ionman101

    Replace 6 AA with 9v 1~2 amp DC adapter

    ionman101, Sep 26, 2018
    Replies:
    7
    Views:
    307
    (*steve*)
    Sep 26, 2018
  7. Mywk

    Circuit not charging when the battery is below a certain voltage

    Mywk, Sep 25, 2018
    Replies:
    3
    Views:
    402
    Bluejets
    Sep 25, 2018
  8. j4cobgarby

    What are these sections of this power supply?

    j4cobgarby, Sep 18, 2018 ... 2
    Replies:
    25
    Views:
    772
    VenomBallistics
    Sep 25, 2018
  9. DivingDoug

    Need to replace batteries but want to switch type

    DivingDoug, Sep 23, 2018
    Replies:
    3
    Views:
    299
    DivingDoug
    Sep 23, 2018
  10. DarkArrow29

    Insufficient Power on my Load

    DarkArrow29, Sep 22, 2018
    Replies:
    9
    Views:
    349
    duke37
    Sep 23, 2018
  11. Sagar Chandurkar

    Spike Generation

    Sagar Chandurkar, Sep 11, 2018
    Replies:
    13
    Views:
    452
    Sagar Chandurkar
    Sep 17, 2018
  12. Rich Gold

    Newbie circuit board on battery question

    Rich Gold, May 1, 2016
    Replies:
    5
    Views:
    1,022
    Externet
    Sep 16, 2018
  13. Chan777

    Low Voltage Li-on battey 18650

    Chan777, Sep 12, 2018
    Replies:
    6
    Views:
    414
    HellasTechn
    Sep 15, 2018
  14. ParraMeister

    Quint Power Supply short

    ParraMeister, Sep 13, 2018
    Replies:
    4
    Views:
    390
    kellys_eye
    Sep 13, 2018
  15. optimistic realist

    Draw air from enclosure or push it in?

    optimistic realist, Sep 13, 2018
    Replies:
    2
    Views:
    379
    Bluejets
    Sep 13, 2018
  16. anistorian

    Smoothing output of a full bridge

    anistorian, Sep 12, 2018
    Replies:
    5
    Views:
    379
    davenn
    Sep 12, 2018
  17. fatman57

    Modify Doorbell Receiver to run off 5v supply

    fatman57, Sep 12, 2018
    Replies:
    2
    Views:
    290
    dave9
    Sep 12, 2018
  18. htidwell1970

    Hello Fellow Boardronauts + Question re: replacement power supply variance

    htidwell1970, Sep 11, 2018
    Replies:
    7
    Views:
    380
    73's de Edd
    Sep 12, 2018
  19. snm

    Bajaj induction cooker 2000w - fault finding

    snm, Sep 9, 2018
    Replies:
    4
    Views:
    328
    kellys_eye
    Sep 10, 2018
  20. TooFatGeorge

    Tiny power supply: buy or make my own?

    TooFatGeorge, Sep 9, 2018
    Replies:
    2
    Views:
    280
    TooFatGeorge
    Sep 9, 2018
  21. soroosh.tehrany

    ESP8266 regulator with 220v

    soroosh.tehrany, Aug 28, 2018
    Replies:
    4
    Views:
    338
    (*steve*)
    Sep 8, 2018
  22. jeremiah25

    Switching Polarity of Electro-magnet.

    jeremiah25, Sep 6, 2018
    Replies:
    5
    Views:
    441
    davenn
    Sep 7, 2018
  23. AGrimReaper

    Mains Voltage

    AGrimReaper, Sep 4, 2018
    Replies:
    7
    Views:
    609
    AGrimReaper
    Sep 6, 2018
  24. Michael Berg

    Modifying super capacity balancing boards

    Michael Berg, Sep 5, 2018
    Replies:
    1
    Views:
    249
    hevans1944
    Sep 6, 2018
  25. fishinghat

    DC to DC converter on wind turbine system.

    fishinghat, Sep 3, 2018
    Replies:
    4
    Views:
    355
    fishinghat
    Sep 4, 2018
  26. bonsia

    10v -14v input to 12v regulator circuit high current

    bonsia, Sep 3, 2018
    Replies:
    15
    Views:
    377
    Bluejets
    Sep 4, 2018
  27. VenomBallistics

    Need a little inspiration

    VenomBallistics, Sep 2, 2018
    Replies:
    10
    Views:
    428
    VenomBallistics
    Sep 3, 2018
  28. gnusmag45

    Power supply failure?

    gnusmag45, Sep 3, 2018
    Replies:
    3
    Views:
    347
    gnusmag45
    Sep 3, 2018
  29. driscolldb

    Learning Project Help - Converting a full sized solar panel

    driscolldb, Aug 24, 2018
    Replies:
    17
    Views:
    423
    Externet
    Sep 1, 2018
  30. meyra meyira

    Question about transformer and on-load tap changers (OLTCs)

    meyra meyira, Sep 1, 2018
    Replies:
    0
    Views:
    311
    meyra meyira
    Sep 1, 2018
  31. AhmedCJ1

    I want to know about this UPS transformer with 7 wires and how to get maximum power from it.

    AhmedCJ1, Aug 28, 2018
    Replies:
    5
    Views:
    401
    davenn
    Aug 30, 2018
  32. bechdan

    Battery pack diy advice please

    bechdan, Aug 23, 2018
    Replies:
    5
    Views:
    369
    BobK
    Aug 30, 2018
  33. Lee Aufdemkampe

    How do I rig up a battery charger?

    Lee Aufdemkampe, Aug 29, 2018
    Replies:
    6
    Views:
    365
    dave9
    Aug 29, 2018
  34. sparkncarl

    Battery charger Diode question

    sparkncarl, Aug 26, 2018
    Replies:
    9
    Views:
    1,186
    duke37
    Aug 28, 2018
  35. paul12321

    Help with EV car charger

    paul12321, Aug 27, 2018
    Replies:
    1
    Views:
    300
    Harald Kapp
    Aug 27, 2018
  36. nati levia

    I need help with capacitors...

    nati levia, Mar 22, 2018
    Replies:
    12
    Views:
    596
    73's de Edd
    Aug 25, 2018
  37. Bluejets

    High Side switching N mosfet

    Bluejets, Apr 25, 2018
    Replies:
    7
    Views:
    497
    (*steve*)
    Aug 25, 2018
  38. computer-joe

    Air conditioner exhaust touching wall, risk of fire?

    computer-joe, Apr 22, 2018
    Replies:
    4
    Views:
    554
    KD6DYR
    Aug 25, 2018
  39. Crandallxallied

    I'm trying to restore a deep cycle 12v battery (for curiosity and sentimental reasons)

    Crandallxallied, Apr 23, 2018
    Replies:
    4
    Views:
    524
    KD6DYR
    Aug 25, 2018
  40. MM0TJR

    Where is the oscillator?

    MM0TJR, Aug 23, 2018
    Replies:
    5
    Views:
    357
    Ylli
    Aug 24, 2018
  41. Functional Artist

    Questions about chargers & charging a 2kWh section of a Chevrolet Volt battery

    Functional Artist, Jul 21, 2018
    Replies:
    14
    Views:
    687
    Sunnysky
    Aug 23, 2018
  42. Engineer_Paul

    6kw solar design from used equipment design.

    Engineer_Paul, Aug 23, 2018
    Replies:
    2
    Views:
    319
    kellys_eye
    Aug 23, 2018
  43. edg

    Help with a power problem

    edg, Aug 23, 2018
    Replies:
    3
    Views:
    308
    edg
    Aug 23, 2018
  44. juliantech5

    MPPT charge controller

    juliantech5, Jul 3, 2018 ... 2
    Replies:
    23
    Views:
    888
    juliantech5
    Aug 23, 2018
  45. taperville62r

    rac model 8040 parts info

    taperville62r, Aug 22, 2018
    Replies:
    2
    Views:
    297
    73's de Edd
    Aug 23, 2018
  46. Jsanford

    Inverter generator

    Jsanford, Aug 8, 2018
    Replies:
    6
    Views:
    405
    Engineer_Paul
    Aug 23, 2018
  47. happirt

    PWM issues when powering 4pin 12v fan without a motherboard

    happirt, Aug 22, 2018
    Replies:
    6
    Views:
    420
    Harald Kapp
    Aug 22, 2018
  48. jujuteux

    Making parralel circuits with PINS

    jujuteux, Aug 21, 2018
    Replies:
    1
    Views:
    279
    Tha fios agaibh
    Aug 21, 2018
  49. C137

    Humidifier power button bypass

    C137, Aug 18, 2018
    Replies:
    10
    Views:
    498
    C137
    Aug 20, 2018
  50. Functional Artist

    Tri-Quad digital battery pack monitor

    Functional Artist, Aug 6, 2018
    Replies:
    3
    Views:
    388
    Functional Artist
    Aug 18, 2018
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