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Recent content by Awarapunshee

  1. Awarapunshee

    [SOLVED] high current regulated power supply

    Here is the a Controller based PSU. Downloaded many years ago (so can't remember). It contains all Schematic, PCB, code, hex file etc Regards
  2. Awarapunshee

    Class b amplifier help

    Visit the site for Tutorials at LINK Regards
  3. Awarapunshee

    require help as a biggner on pic microcontroller

    If you are a beginner, there are a lot of sites for you like **broken link removed** **broken link removed** **broken link removed** Regards
  4. Awarapunshee

    Can you recomend a book

    Following site may help in this regard: DSP Regards
  5. Awarapunshee

    need ebook on microstrip antenna

    Check your PM for the books. Regards
  6. Awarapunshee

    High quanlity or Mil standard PCB

    You can go for the FR4 TG170 boards. Just told them to give beside other parameters like HASL, 17micron etc. Regards
  7. Awarapunshee

    Help me build a LAN cable tester

    Re: lan cable tester I sent the complete schematic with code. Kindly check ur PM Regards
  8. Awarapunshee

    i/o port expansion in microcontrollers

    One option is to use Microchip MCP23017 16-Bit I/O Expander with Serial Interface. See its data sheet details. Regards
  9. Awarapunshee

    sensor that differ between human and animal

    Actually, you can do it by image processing. Image (video) taken through camera is processed and compared with known signature of animals (to be monitored). Regards
  10. Awarapunshee

    problem with pcad gerber

    Extension are correct: Normally Gerber files has GBR and Drill files has DRL extension. If these are exported correctly, they should be open in CAMTASTIC. Try GerbTool, if you have one or send /upload so that we can check. Regards
  11. Awarapunshee

    I want to learn .... were do i start?

    See your PM, I have sent the link. Regards
  12. Awarapunshee

    variable switch mode power supply

    Use MOSFET, Instead of BJT (2N2222), It cannot handle the load. 10nF is also necessary Regards
  13. Awarapunshee

    need help to understand flyback circuit

    Dots represent the same phase points. Practically, when you wind a transformer the start point of one winding if consider a dot then, the start point of other winding will be a dot and vice versa. Regards
  14. Awarapunshee

    variable switch mode power supply

    It is quite basic question. These are power MOSFETs that are quickly switched between the saturation (full-on) and the cutoff (full-off) states. They serve as a “gate” for the energy entering the supply that is subsequently delivered to the load. The energy flow is regulated by the control...

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