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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: 22,398
    29th August 2009, 08:22 Go to last post
  1. Closed: Pic 16f876a Pure Sinewave inverter

    Started by marcony, 12th May 2007 23:03
    49 Pages
    1 2 3 ... 49
    • Replies: 977
    • Views: 399,266
    21st January 2017, 10:43 Go to last post
  2. Closed: Companies which offer online free sample ordering

    Started by davorin, 27th June 2003 11:12
    16 Pages
    1 2 3 ... 16
    • Replies: 316
    • Views: 226,985
    6th May 2011, 15:22 Go to last post
  3. Closed: need UPS Circuit diagram

    Started by DavidNelly, 12th February 2007 17:12
    • Replies: 18
    • Views: 117,380
    31st October 2011, 14:01 Go to last post
  4. Closed: Problems with SIM300 as it doesn't detect the sim card

    Started by gravi, 21st June 2006 07:24
    9 Pages
    1 2 3 ... 9
    • Replies: 178
    • Views: 92,623
    3rd March 2013, 03:15 Go to last post
  5. Closed: cell phone jammer circuit diagram, ideas

    Started by indynetra, 3rd April 2006 19:07
    9 Pages
    1 2 3 ... 9
    • Replies: 164
    • Views: 90,416
    15th October 2011, 11:40 Go to last post
  6. Closed: 3 Phase 4 Wire Connection for L&T Whole Current Meter

    Started by Sanath Embedded, 9th April 2009 13:16
    • Replies: 14
    • Views: 81,522
    12th February 2012, 13:25 Go to last post
  7. Closed: gprs modem interface proceduer

    Started by zekabra, 14th May 2003 22:09
    10 Pages
    1 2 3 ... 10
    • Replies: 193
    • Views: 77,127
    6th September 2011, 10:49 Go to last post
  8. Closed: Typical connection of IR2110

    Started by yogikool, 15th September 2006 08:03
    2 Pages
    1 2
    • Replies: 25
    • Views: 75,220
    2nd March 2007, 03:43 Go to last post
  9. Closed: How to convert 230V A.C to 5V D.C with out using transformer

    Started by saumya_85, 16th April 2009 08:02
    2 Pages
    1 2
    • Replies: 22
    • Views: 72,370
    2nd June 2009, 03:19 Go to last post
  10. Closed: Various metal detector circuit diagrams

    Started by static, 25th July 2009 15:37
    2 Pages
    1 2
    • Replies: 39
    • Views: 62,184
    30th August 2013, 20:26 Go to last post
  11. Closed: 12v to 220v inverter circuit diagram

    Started by Aravindan_t20, 21st October 2005 15:29
    • Replies: 18
    • Views: 57,679
    30th October 2011, 19:12 Go to last post
  12. Closed: Single phase induction motor speed control

    Started by krunal_299, 3rd February 2009 06:29
    • Replies: 9
    • Views: 54,219
    24th December 2010, 18:59 Go to last post
  13. Closed: Heart Beat Monitor with Infra-red AND LDR Sensor

    Started by Fragrance, 23rd September 2003 09:46
    4 Pages
    1 2 3 ... 4
    • Replies: 72
    • Views: 51,888
    3rd May 2013, 01:34 Go to last post
  14. Closed: which is the best soldering & desoldering stations?

    Started by mbyka, 27th April 2004 22:53
    2 Pages
    1 2
    • Replies: 28
    • Views: 50,522
    31st December 2010, 03:36 Go to last post
  15. [SOLVED]Closed: DC to AC inverter H-Bridge

    Started by Sheen354, 16th November 2012 17:13
    • Replies: 19
    • Views: 49,072
    22nd December 2013, 10:49 Go to last post
  16. Closed: 4/20mA Sensorsignal to a 0-10V Signal

    Started by diegor747, 1st May 2002 15:25
    • Replies: 19
    • Views: 48,698
    10th April 2006, 05:06 Go to last post
  17. Closed: Where to find LED PSpice model?

    Started by ee_freak, 8th October 2001 17:03
    • Replies: 2
    • Views: 48,302
    9th August 2009, 16:50 Go to last post
  18. Closed: Any suggestion to interface 5V to 3.3V signal

    Started by dinosaur, 16th October 2003 06:38
    3 Pages
    1 2 3
    • Replies: 40
    • Views: 48,250
    9th October 2006, 14:59 Go to last post
  19. Closed: SIM300 breakout PCB design - let's fab some PCBs :)

    Started by ds18s20, 30th June 2006 15:32
    4 Pages
    1 2 3 ... 4
    • Replies: 61
    • Views: 47,817
    23rd June 2013, 23:57 Go to last post
  20. Closed: Help me build an OBD II scanner for reading diagnostics from auto computers

    Started by johnyaya, 22nd September 2001 17:09
    2 Pages
    1 2
    • Replies: 25
    • Views: 46,931
    1st October 2008, 06:16 Go to last post
  21. Closed: How to copy SIM card of a mobile phone?

    Started by 7rots51, 19th July 2004 08:49
    2 Pages
    1 2
    • Replies: 27
    • Views: 41,545
    10th March 2006, 02:08 Go to last post
  22. Closed: How to determine mosfet gate driver current requirement?

    Started by seyyah, 4th July 2005 17:53
    • Replies: 11
    • Views: 38,256
    3rd September 2013, 08:18 Go to last post
  23. Closed: How to reset HP inkjet cartridge chip?

    Started by Bus Master, 13th February 2005 15:37
    • Replies: 1
    • Views: 38,205
    13th February 2005, 15:57 Go to last post
  24. Closed: Auto-start circuit for an electric generator

    Started by ksnl2008, 21st April 2008 09:24
    • Replies: 6
    • Views: 38,195
    19th January 2011, 08:54 Go to last post
  25. Closed: electric fence energizer circuit diagram

    Started by mangesh_c, 7th November 2008 11:48
    • Replies: 7
    • Views: 37,863
    7th February 2012, 12:01 Go to last post
  26. Closed: Best PCB Cleaning solution?

    Started by cameo_2007, 18th June 2007 10:07
    • Replies: 9
    • Views: 37,803
    27th June 2007, 17:57 Go to last post
  27. Closed: DESIGNING A PULSE OXIMETER TSL230R BASED

    Started by sbajaj, 4th May 2007 10:39
    3 Pages
    1 2 3
    • Replies: 45
    • Views: 37,424
    19th July 2014, 20:33 Go to last post
  28. Closed: Why use 0 Ohm Resistor

    Started by davyzhu, 23rd September 2004 10:34
    2 Pages
    1 2
    • Replies: 24
    • Views: 36,833
    28th December 2004, 09:01 Go to last post
  29. Closed: What is the need of "FLUX" when soldering on PCB?

    Started by ahmad_abdulghany, 28th April 2006 15:54
    2 Pages
    1 2
    • Replies: 26
    • Views: 35,813
    19th June 2006, 17:55 Go to last post
  30. Closed: Positive To Negative Voltage DC-DC Converter?

    Started by ulaska, 17th March 2006 13:39
    • Replies: 14
    • Views: 35,064
    30th June 2010, 22:45 Go to last post