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Forum: Professional Hardware and Electronics Design

EMC and Electrical Safety standards. Quality assurance labels (CE). Others Standards and whatever related with professional hardware design.

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

    Started by pranam77, 29th August 2009 08:22
    • Replies: 0
    • Views: 22,034
    pranam77
    29th August 2009, 08:22 Go to last post

  1. First attempt at USB differential pair routing on a 2 layer board. Acceptable or not?

    Started by TnF, 30th July 2019 01:22
    8 Attachment(s)
    • Replies: 10
    • Views: 771
    marce
    14th August 2019, 13:46 Go to last post

  2. Estimated cost of high volume PCB assembly

    Started by question_asker, 7th August 2019 12:44
    • Replies: 1
    • Views: 259
    barry
    7th August 2019, 16:39 Go to last post

  3. USB2514B usb hub controller schematic basic questions

    Started by TnF, 27th July 2019 20:09
    • Replies: 5
    • Views: 455
    FvM
    30th July 2019, 12:43 Go to last post

  4. EMI on data lines causing USB hub controller IC problems?

    Started by TnF, 25th July 2019 21:36
    • Replies: 12
    • Views: 718
    TnF
    27th July 2019, 18:13 Go to last post

  5. How to use TL431 Model in LTSPICE

    Started by satiz, 26th July 2019 07:02
    • Replies: 2
    • Views: 253
    andre_teprom
    26th July 2019, 10:39 Go to last post

  6. Power Supply for M95 GSM module to be compatible with ATEX limitations.

    Started by hm_fa_da, 3rd July 2019 13:51
    2 Attachment(s)
    • Replies: 7
    • Views: 1,511
    FvM
    17th July 2019, 11:24 Go to last post

  7. Drive P Channel Mosfet Using 8051

    Started by gauravkothari23, 2nd July 2019 11:48
    1 Attachment(s)
    • Replies: 1
    • Views: 313
    KlausST
    2nd July 2019, 12:27 Go to last post

  8. How would i decrease the clock frequency

    Started by wylll, 18th June 2019 14:10
    • Replies: 8
    • Views: 978
    KlausST
    19th June 2019, 09:52 Go to last post

  9. USB eye, attenuation s-param etc?

    Started by nicklas_a74, 13th June 2019 07:55
    • Replies: 0
    • Views: 397
    nicklas_a74
    13th June 2019, 07:55 Go to last post

  10. Ethernet vs USB discussion and/or comparison

    Started by joniengr, 10th June 2019 12:29
    • Replies: 4
    • Views: 577
    kripacharya
    12th June 2019, 12:52 Go to last post

  11. [SOLVED] PDF417 barcode Scanner hardware module

    Started by HasHx, 5th May 2019 15:23
    1 Attachment(s)
    • Replies: 1
    • Views: 2,131
    HasHx
    15th May 2019, 11:46 Go to last post

  12. Question about appliance power rating and bursts

    Started by gary_feesher, 3rd May 2019 10:51
    2 Attachment(s)
    • Replies: 4
    • Views: 1,994
    summitville
    6th May 2019, 18:22 Go to last post

  13. MCP4261 need manually power off from time to time or not working well

    Started by laoadam, 23rd March 2019 16:56
    1 Attachment(s)
    • Replies: 14
    • Views: 4,577
    Aussie Susan
    29th April 2019, 00:22 Go to last post

  14. Can I use a digital potentiometer replace the potentiometer in a buck converter board

    Started by laoadam, 24th April 2019 04:47
    • Replies: 4
    • Views: 994
    betwixt
    24th April 2019, 14:07 Go to last post

  15. Multiple ADC inputs connected together

    Started by ku637, 24th April 2019 08:39
    • Replies: 4
    • Views: 622
    betwixt
    24th April 2019, 11:40 Go to last post

  16. USB-C connector: Can I use it just as a connector for another purpose?

    Started by userx2, 8th April 2019 22:59
    • Replies: 10
    • Views: 1,182
    cyberrat
    11th April 2019, 19:00 Go to last post

  17. [SOLVED] Need help stepper motor control with DRV4832

    Started by Ranbeer Singh, 2nd April 2019 14:15
    • Replies: 5
    • Views: 1,088
    KlausST
    2nd April 2019, 21:22 Go to last post

  18. Reverse ESD Discharge control

    Started by lightning_bolt, 28th March 2019 23:05
    • Replies: 4
    • Views: 2,066
    marce
    1st April 2019, 15:50 Go to last post

  19. Wire transmission(15 mtrs) to send data & control signals for cascaded shift register

    Started by Prakash12345, 28th March 2019 05:17
    1 Attachment(s)
    • Replies: 8
    • Views: 1,075
    Prakash12345
    29th March 2019, 14:49 Go to last post

  20. DDR3 hardware circuit design

    Started by samym, 23rd March 2019 23:57
    • Replies: 4
    • Views: 1,800
    malli_1729
    29th March 2019, 05:41 Go to last post

  21. Problems with Power Supply using LT8609EMSE#PBF

    Started by Rikr09, 22nd March 2019 22:26
    3 Attachment(s)
    • Replies: 10
    • Views: 1,174
    KlausST
    27th March 2019, 14:00 Go to last post

  22. Mains Wiring Colour Code

    Started by coates, 26th February 2019 19:14
    1 Attachment(s)
    • Replies: 8
    • Views: 2,579
    cyberrat
    15th March 2019, 08:04 Go to last post

  23. Detect Reverse Polarity of Coil

    Started by dsanthosh67, 11th March 2019 13:27
    • Replies: 3
    • Views: 1,151
    BradtheRad
    11th March 2019, 23:03 Go to last post

  24. Semiconductor Industry future timeline for cmos 5nm

    Started by Puppet123, 7th March 2019 04:14
    • Replies: 2
    • Views: 840
    ThisIsNotSam
    7th March 2019, 15:26 Go to last post

  25. Need help to identify this board or find a replacement

    Started by steve_rb, 22nd February 2019 19:14
    1 Attachment(s)
    • Replies: 15
    • Views: 2,508
    FvM
    4th March 2019, 22:20 Go to last post

  26. ATEX related current limiting calculation question

    Started by hm_fa_da, 3rd March 2019 17:08
    1 Attachment(s)
    • Replies: 2
    • Views: 662
    hm_fa_da
    3rd March 2019, 22:15 Go to last post

  27. Safety of Electrical Equipment

    Started by coates, 28th February 2019 16:16
    • Replies: 9
    • Views: 2,618
    KlausST
    1st March 2019, 13:50 Go to last post

  28. How this is done? Data over audio tones

    Started by ku637, 25th February 2019 19:52
    • Replies: 4
    • Views: 794
    ZASto
    28th February 2019, 15:40 Go to last post

  29. [SOLVED] SIM800 EAT compiling

    Started by dp1311.dp, 5th February 2019 06:48
    2 Attachment(s)
    • Replies: 4
    • Views: 1,471
    dp1311.dp
    26th February 2019, 07:52 Go to last post

  30. Closed: How to interpret EMC testing results?

    Started by gary_feesher, 12th February 2019 21:14
    • Replies: 1
    • Views: 988
    ktr
    13th February 2019, 16:44 Go to last post
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