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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: 3,599
    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: 32,851
    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: 31,067
    pranam77
    21st August 2009, 09:05 Go to last post

  1. How to control a electric magnet

    Started by minimango2013, 22nd August 2019 21:11
    • Replies: 16
    • Views: 276
    c_mitra
    Today, 12:15 Go to last post

  2. Diffusion Capacitance in PN junction and forward bias diode resistance

    Started by Robotduck, Today 03:48
    • Replies: 0
    • Views: 59
    Robotduck
    Today, 03:48 Go to last post

  3. Transition frequency fT of a transistor - definition

    Started by htg, Yesterday 19:44
    • Replies: 1
    • Views: 82
    BigBoss
    Yesterday, 21:51 Go to last post

  4. bjt safe operating area diagram

    Started by Zak28, Yesterday 09:52
    • Replies: 2
    • Views: 94
    Zak28
    Yesterday, 11:14 Go to last post

  5. Can someone help me to find out what an unknown PCB is?

    Started by RichinPV, 20th August 2019 21:26
    2 Attachment(s)
    • Replies: 3
    • Views: 139
    ZASto
    Yesterday, 07:41 Go to last post

  6. Calculating electromagnet – magnetism vs heat

    Started by perik, 21st August 2019 13:51
    • Replies: 6
    • Views: 143
    c_mitra
    Yesterday, 01:08 Go to last post

  7. P mosfet turns on/voltage at drain during powerup

    Started by tiwari.sachin, 21st August 2019 13:38
    2 Attachment(s)
    • Replies: 5
    • Views: 250
    FvM
    22nd August 2019, 23:10 Go to last post

  8. [SOLVED] mosfet totem pole voltage

    Started by Zak28, 22nd August 2019 00:49
    • Replies: 6
    • Views: 213
    barry
    22nd August 2019, 20:55 Go to last post

  9. [SOLVED] Stacking diodes for high voltage rectification

    Started by Zak28, 19th August 2019 01:57
    2 Pages •
    1 2
    • Replies: 27
    • Views: 687
    Zak28
    22nd August 2019, 00:51 Go to last post

  10. Did early power MOSFETs have body diode?

    Started by htg, 21st August 2019 12:53
    • Replies: 1
    • Views: 106
    FvM
    21st August 2019, 18:04 Go to last post

  11. PIR sensor project

    Started by electronicnoob, 20th August 2019 09:06
    • Replies: 4
    • Views: 220
    betwixt
    20th August 2019, 10:08 Go to last post

  12. Multiple AC inputs relay (light PLC)

    Started by my_name, 18th August 2019 22:11
    1 Attachment(s)
    • Replies: 5
    • Views: 225
    my_name
    20th August 2019, 08:02 Go to last post

  13. 4x4 Keypad for Arduino with color keys and braille texture (no membrane buttons)

    Started by lauracastellana, 19th August 2019 10:26
    1 Attachment(s)
    • Replies: 1
    • Views: 129
    betwixt
    19th August 2019, 16:35 Go to last post

  14. 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: 232
    pancho_hideboo
    16th August 2019, 06:48 Go to last post

  15. Subtract two dc voltages.

    Started by Nancy12345, 15th August 2019 05:54
    • Replies: 8
    • Views: 416
    KlausST
    16th August 2019, 06:47 Go to last post

  16. [SOLVED] magnet wire parasitic properties

    Started by Zak28, 15th August 2019 00:07
    • Replies: 5
    • Views: 257
    FvM
    15th August 2019, 12:26 Go to last post

  17. 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: 334
    KlausST
    14th August 2019, 19:40 Go to last post

  18. Single conductor inside hollow conductor

    Started by Kajunbee, 7th August 2019 20:52
    2 Pages •
    1 2
    • Replies: 25
    • Views: 933
    wwfeldman
    14th August 2019, 18:06 Go to last post

  19. Difference between Differentiators and Comparators

    Started by sirkiosta, 13th August 2019 13:20
    • Replies: 3
    • Views: 171
    BradtheRad
    14th August 2019, 01:04 Go to last post

  20. Forward voltage of blue 3 mm led

    Started by fixit7, 13th August 2019 04:21
    1 Attachment(s)
    • Replies: 9
    • Views: 301
    fixit7
    13th August 2019, 23:06 Go to last post

  21. Motor current calculation using current sensor

    Started by vikash23, 13th August 2019 13:18
    1 Attachment(s)
    • Replies: 2
    • Views: 130
    frankrose
    13th August 2019, 18:26 Go to last post

  22. [SOLVED] voltage and current waveforms spark gap

    Started by Zak28, 10th August 2019 20:58
    1 Attachment(s)
    • Replies: 9
    • Views: 430
    FvM
    13th August 2019, 07:50 Go to last post

  23. Help with medication timer design

    Started by gernith, 12th August 2019 02:46
    • Replies: 5
    • Views: 340
    gernith
    12th August 2019, 18:24 Go to last post

  24. HF Upconverter Circuit Question

    Started by promach, 12th August 2019 17:16
    • Replies: 0
    • Views: 133
    promach
    12th August 2019, 17:16 Go to last post

  25. Wrong sinusoidal signal

    Started by Justin18, 11th August 2019 15:37
    1 Attachment(s)
    • Replies: 1
    • Views: 154
    barry
    11th August 2019, 16:51 Go to last post

  26. Whats the best way to ESD damage a PCB

    Started by treez, 11th August 2019 00:24
    • Replies: 6
    • Views: 331
    betwixt
    11th August 2019, 10:07 Go to last post

  27. [SOLVED] 12 vdc led running very hot

    Started by fixit7, 9th August 2019 03:03
    2 Attachment(s)
    • Replies: 12
    • Views: 394
    fixit7
    9th August 2019, 19:04 Go to last post

  28. [SOLVED] dc current gain variations

    Started by Zak28, 8th August 2019 10:43
    • Replies: 3
    • Views: 155
    schmitt trigger
    8th August 2019, 20:09 Go to last post

  29. Drive motor through IRF520 MOSFET module and Arduino

    Started by sugandha123, 8th August 2019 11:40
    2 Attachment(s)
    • Replies: 1
    • Views: 133
    wwfeldman
    8th August 2019, 18:14 Go to last post

  30. Rebuild low end computer speakers

    Started by fixit7, 6th August 2019 18:58
    • Replies: 7
    • Views: 395
    Audioguru
    7th August 2019, 13:17 Go to last post
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