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Recent content by arevindh

  1. A

    Need Precise 5v USB Power Supply

    Any alternate IC ? I am unable to get LM2575 ..
  2. A

    Need Precise 5v USB Power Supply

    I tried for repair they tells tat it will cost Rs.4000/- chip level service OR Rs.18000/- for mother board replacement. I will soon buy a New One but Before tat I have to use this for my current usage.
  3. A

    Need Precise 5v USB Power Supply

    Thankz .. Please tell how can i build the 330uH coil ?
  4. A

    Need Precise 5v USB Power Supply

    I have tools to measure the current . Without Load it shows 4.25v is Same.....
  5. A

    Need Precise 5v USB Power Supply

    The Mode company Says it wa Over current But When I check the ports the voltage was Low !!! ---------- Post added at 21:27 ---------- Previous post was at 21:25 ---------- Seems ok .. But Can I build it OR Buy From Shop (If yes please tell the estimated Cost (I am from India))
  6. A

    Need Precise 5v USB Power Supply

    My system Lenovo 3000g400 is suffering from USB IC leakage problem and Because of this I am Only Getting 4.25v at USB :-( . I need A circuit which is very precise and can Be used instead of my USB Power , and Connecting the Data lines D1 and D2 as If, and connecting the power from an...
  7. A

    Crystal for Inverter 3.2768MHz Unavialable

    :wink:Yes the center taped goes to ground :cry::cry:Sorry I make a mistake while drawing .
  8. A

    Crystal for Inverter 3.2768MHz Unavialable

    Output is taken across 10Uuf capasitor
  9. A

    Crystal for Inverter 3.2768MHz Unavialable

    Hai,:roll: I have modified an inverter circuit for soldering iron published in Electronics For You . I added 50hz frequency generator from another circuit published in Electronics Projects handbook. I I suffering from the unavailability of Crystal of frequency 3.2768 Mhz :-?:cry:, Can i...
  10. A

    USB Port Over Current

    its OK in device manger
  11. A

    I need Fm Transmitter of 1 Watt

    Given below is the jpg image :arrow: Its frequency changes as battery voltage decrease :?:?:?.1 use 8 Rechargeable Ni-Cd Cells to power it can i connect a voltage regulator IC 7806 or 7809 to it ????:-o:-o ---------- Post added at 14:17 ---------- Previous post was at 14:11 ---------- No i...
  12. A

    USB Port Over Current

    I tried formating but no use , i Plug in I Ipod and it doesnot get connected when i restarted my computer it the problem came .
  13. A

    I need Fm Transmitter of 1 Watt

    I have attached a file of FM transmitter I bought is PCB Layout by me is also in it (Sorry for the circuit is not well imaged ) It can be opened using Targe3001 V14
  14. A

    USB Port Over Current

    On every restarts it displays same , We can continue by pressing F1 but my computer is heating up .......................
  15. A

    USB Port Over Current

    I emergently need your help My system is showing :? on powering on **broken link removed** My battery charge is now only for 1 hour. Two USB Ports are not working No internal shortage of leads I think a leak in the IC . Help meeeeeeeeeeeeeeeee...
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