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Recent content by upol

  1. U

    Power MOSFET over 30W?

    IRF 540 is the most common available mosfet with a power rating of 150W max. all the other feature should meet your requirement, i hope
  2. U

    Sony Handycam CCD-TRV47e

    trv47e I need the service manual for Sony Camera Model CCD-TRV47e. Can anyone help? Thanks in advance
  3. U

    PIC microcontroller based UPS ?

    pic de una ups would u please explain the "trickle Charge Current" ? I am not familiar with this term. The data that I provided was written on the battery. If u need any furter data,,then i can go to the website and get the data for u.
  4. U

    PIC microcontroller based UPS ?

    dc to ac microcontroller based ups circuit code My 12v Dc battery Specification.. 12V/7AH/20H Carging Voltage...14.5 - 15.0 v Nominal Voltage...13.5 - 13.8 v Charging current ..<2.1A
  5. U

    PIC microcontroller based UPS ?

    microcontroller base ups Now i understand tornado. Thanks. U can now proceed to the next section. I am done with this transformer 12v-0-12v with a capacity of 1A.
  6. U

    PIC microcontroller based UPS ?

    pic16f628-based ups are we connecting the two 12V battery in series?? or it is a 12-0-12 CT transformer. If we are working with a 12V battery(2 Battery in parallel) then the transformer of the charging circuit should be 12V...please clear my confusion... thanks & regards
  7. U

    PIC microcontroller based UPS ?

    ups microprocessor based difference ok i have gone through the pages..Hope ITP had gone through it as well. Now, Tornado...Please go to the next lesson. What to do next?
  8. U

    Need a circuit diagram of a UPS

    schematic diagram circuit of 500 va ups yes...I have a transformer like u described..But one thing...I got a transformer...which's half of the core is for primary and the other half is for the secondary. In such arrangement both the windings have the same distance from the iron core. Will these...
  9. U

    Need a circuit diagram of a UPS

    circuit diagram for low cost ups Ok ...Here it goes.. 1:::OUTPUT POWER ---- ~500VA 2:::Battery Voltage----- 12V (7AHr) x 2pcs (Parallel connection to increase power and backup time) 3:::OUTPUT Voltage---- ~230VAC 4:::OUTPUT Frequency-- 50HZ(tolerance 2%) Here are the requirement...now u can...
  10. U

    Need a circuit diagram of a UPS

    dcp and 1000va ups and circuit diagrams ya i agree with u. Do u have any personal suggession? thanks
  11. U

    roadmap form electronics newbie to expert

    There is another good link for u. _http://www.discovercircuits.com/
  12. U

    hi power dc-ac inverter designe

    crystal oscillator+dc-ac inverter I downloaded both the pdf file and it did not require any user/pass
  13. U

    hi power dc-ac inverter designe

    charger +designe+circuit I just need a simple circuit which parts are common and easy to build and not a very large power is required. A 5 min backup will do just fine for me thanks
  14. U

    driver 7 segments display and multipexation

    is this chip easly available?
  15. U

    Need a circuit diagram of a UPS

    500va ups circuits thanks to you / Warning #2 - No thanks at Elektroda! Read forum rules before posting! /
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