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Recent content by emiljose88

  1. E

    is it possible to use X2 capacitors in the place of dc blocking capacitor?

    Dear All I have one electronic ballast. the DC blocking cap used is Metalyzed polyester. is it possible to use X2 capacitors in the place of dc blocking capacitor?
  2. E

    Suge testing time interval

    Dear all I want to know the surge testing details, like 1. Number of spikes per minute 2. Rise/fall time 3. Duration I have to check this with my led drivers, upto 80W. Can you help me?
  3. E

    How to calculate the Inductance(Lres) and Cres Value in a lamp ballast design?

    Dear all Me going to designing a induction lamp ballast in a wide range, like 40W,80W,120W,150W,180W,200W,250W. Me successfully completed 40W & 80W, using a reference design. The running frequency is 218Khz. But I got continuous failures issues in 150W ballast, there is no reference design. How...
  4. E

    half bridge using uc3825

    hi guys can you send any schematics.
  5. E

    half bridge using uc3825

    thanks can you send any ckt diagram.
  6. E

    half bridge using uc3825

    thanks first time i'm going to design a half bridge Vin-150V to 265VAC output- 15V 20A smps can you help me seriously, with schematics (UC3825)
  7. E

    half bridge using uc3825

    thanks can you give any ckt diagrams using half bridge, UC3825
  8. E

    half bridge using uc3825

    Hi Guys I wish to done a half bridge using UC3825( up to 400W). Can you suggest any guidelines to my project?
  9. E

    100w -200w high power led driver using L6562-st electronics

    Thanks Please suggest a IC?[COLOR="Silver"]
  10. E

    100w -200w high power led driver using L6562-st electronics

    sigle chip edison 100W citizen-200w
  11. E

    100w -200w high power led driver using L6562-st electronics

    I wish to done 100w-200w led driver using L6562 IC in flyback topology. Is it good?
  12. E

    36w passive powerfactor corrected dual ballast

    How can I limit inrush current in ballasts?
  13. E

    36w passive powerfactor corrected dual ballast

    thanks My circuit is just same as Philips 36w PPFC dual ballast. The values of the component are different.
  14. E

    36w passive powerfactor corrected dual ballast

    I wish to done a 366ppfc ballast. but the the capacitor in valleyfill is getting hot. How can I solve it? Here I attached the circuit. The capacitors are shown in circles. capacitor value is 22nf/400V each( or 100Nf/400V)
  15. E

    1KW or 5KW smps using flyback topology

    thanks Is it possible for 12V 10A smps (forward topology)
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