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Forum: Elementary Electronic Questions

Want to learn electronics and need a points to start? Need help in your electronics related homeworks? Need a seminar topic? All questions can be asked here.

  1. Sticky Thread Sticky: Resources for some of your basic electronics engineering questions

    Started by EastbayA, 17th April 2018 17:11
    • Replies: 0
    • Views: 3,530
    EastbayA
    17th April 2018, 17:11 Go to last post

  2. Sticky Thread Sticky: Before Post here please read this

    Started by Fragrance, 22nd February 2011 08:38
    • Replies: 0
    • Views: 32,795
    Fragrance
    22nd February 2011, 08:38 Go to last post

  3. Sticky Thread Sticky: READ BEFORE YOU POST - do not post e-books, ieee papers here

    Started by pranam77, 21st August 2009 09:05
    • Replies: 0
    • Views: 31,012
    pranam77
    21st August 2009, 09:05 Go to last post

  1. Stacking diodes for high voltage rectification

    Started by Zak28, Yesterday 01:57
    • Replies: 8
    • Views: 172
    Zak28
    Today, 02:26 Go to last post

  2. Multiple AC inputs relay (light PLC)

    Started by my_name, 18th August 2019 22:11
    1 Attachment(s)
    • Replies: 4
    • Views: 145
    KlausST
    Yesterday, 21:39 Go to last post

  3. 4x4 Keypad for Arduino with color keys and braille texture (no membrane buttons)

    Started by lauracastellana, Yesterday 10:26
    1 Attachment(s)
    • Replies: 1
    • Views: 85
    betwixt
    Yesterday, 16:35 Go to last post

  4. Why Z and Y matrices must be pure imaginary for reciprocal lossless N-port junction ?

    Started by promach, 15th August 2019 07:58
    1 Attachment(s)
    • Replies: 2
    • Views: 206
    pancho_hideboo
    16th August 2019, 06:48 Go to last post

  5. Subtract two dc voltages.

    Started by Nancy12345, 15th August 2019 05:54
    • Replies: 8
    • Views: 352
    KlausST
    16th August 2019, 06:47 Go to last post

  6. [SOLVED] magnet wire parasitic properties

    Started by Zak28, 15th August 2019 00:07
    • Replies: 5
    • Views: 229
    FvM
    15th August 2019, 12:26 Go to last post

  7. Calculating switching losses of a mosfet when switching energy is not given

    Started by Cecemel, 13th August 2019 17:21
    1 Attachment(s)
    • Replies: 6
    • Views: 303
    KlausST
    14th August 2019, 19:40 Go to last post

  8. Single conductor inside hollow conductor

    Started by Kajunbee, 7th August 2019 20:52
    2 Pages •
    1 2
    • Replies: 25
    • Views: 868
    wwfeldman
    14th August 2019, 18:06 Go to last post

  9. Difference between Differentiators and Comparators

    Started by sirkiosta, 13th August 2019 13:20
    • Replies: 3
    • Views: 145
    BradtheRad
    14th August 2019, 01:04 Go to last post

  10. Forward voltage of blue 3 mm led

    Started by fixit7, 13th August 2019 04:21
    1 Attachment(s)
    • Replies: 9
    • Views: 282
    fixit7
    13th August 2019, 23:06 Go to last post

  11. Motor current calculation using current sensor

    Started by vikash23, 13th August 2019 13:18
    1 Attachment(s)
    • Replies: 2
    • Views: 120
    frankrose
    13th August 2019, 18:26 Go to last post

  12. [SOLVED] voltage and current waveforms spark gap

    Started by Zak28, 10th August 2019 20:58
    1 Attachment(s)
    • Replies: 9
    • Views: 390
    FvM
    13th August 2019, 07:50 Go to last post

  13. Help with medication timer design

    Started by gernith, 12th August 2019 02:46
    • Replies: 5
    • Views: 305
    gernith
    12th August 2019, 18:24 Go to last post

  14. HF Upconverter Circuit Question

    Started by promach, 12th August 2019 17:16
    • Replies: 0
    • Views: 115
    promach
    12th August 2019, 17:16 Go to last post

  15. Wrong sinusoidal signal

    Started by Justin18, 11th August 2019 15:37
    1 Attachment(s)
    • Replies: 1
    • Views: 141
    barry
    11th August 2019, 16:51 Go to last post

  16. Whats the best way to ESD damage a PCB

    Started by treez, 11th August 2019 00:24
    • Replies: 6
    • Views: 303
    betwixt
    11th August 2019, 10:07 Go to last post

  17. [SOLVED] 12 vdc led running very hot

    Started by fixit7, 9th August 2019 03:03
    2 Attachment(s)
    • Replies: 12
    • Views: 371
    fixit7
    9th August 2019, 19:04 Go to last post

  18. [SOLVED] dc current gain variations

    Started by Zak28, 8th August 2019 10:43
    • Replies: 3
    • Views: 144
    schmitt trigger
    8th August 2019, 20:09 Go to last post

  19. Drive motor through IRF520 MOSFET module and Arduino

    Started by sugandha123, 8th August 2019 11:40
    2 Attachment(s)
    • Replies: 1
    • Views: 119
    wwfeldman
    8th August 2019, 18:14 Go to last post

  20. Rebuild low end computer speakers

    Started by fixit7, 6th August 2019 18:58
    • Replies: 7
    • Views: 351
    Audioguru
    7th August 2019, 13:17 Go to last post

  21. Temperature effect on diode function

    Started by flaxwalter, 3rd August 2019 19:27
    8 Attachment(s)
    • Replies: 16
    • Views: 726
    c_mitra
    7th August 2019, 05:42 Go to last post

  22. Residential Wiring Offset Voltage

    Started by Zak28, 5th August 2019 02:06
    • Replies: 10
    • Views: 534
    Zak28
    7th August 2019, 03:49 Go to last post

  23. Analog Layout- Why CD KEY is Required ?

    Started by RohithRaj, 6th August 2019 08:33
    • Replies: 1
    • Views: 136
    dick_freebird
    6th August 2019, 18:38 Go to last post

  24. Replaced NiMh battery in small solar light

    Started by fixit7, 26th July 2019 04:47
    • Replies: 19
    • Views: 979
    SunnySkyguy
    6th August 2019, 16:21 Go to last post

  25. Motor winding Temeparture

    Started by curious_mind, 4th August 2019 09:41
    • Replies: 6
    • Views: 298
    schmitt trigger
    4th August 2019, 22:03 Go to last post

  26. What dc can u measure?

    Started by Justin18, 1st August 2019 08:16
    1 Attachment(s)
    • Replies: 5
    • Views: 414
    Audioguru
    3rd August 2019, 03:50 Go to last post

  27. Switched mode power supply

    Started by rajasekharnbkrist, 17th July 2019 18:18
    • Replies: 3
    • Views: 670
    goldsmith
    30th July 2019, 19:47 Go to last post

  28. Is the transistor calculation is right?

    Started by medhatko, 29th July 2019 02:55
    4 Attachment(s)
    • Replies: 18
    • Views: 830
    KlausST
    30th July 2019, 06:29 Go to last post

  29. overvoltage protection

    Started by curious_mind, 27th July 2019 13:01
    • Replies: 10
    • Views: 547
    schmitt trigger
    29th July 2019, 18:09 Go to last post

  30. charging capacitor partially

    Started by fighter7778, 24th July 2019 18:18
    • Replies: 6
    • Views: 436
    c_mitra
    29th July 2019, 12:49 Go to last post
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