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  1. Arouse1973

    Cuk converter ripple current

    I think the 10% ripple for the capacitor is voltage. 10% voltage ripple is it dips down to 10% i.e 1.2 Volts from 12 volts out. I guess that's what they mean? You then need to use the formula above I gave you. Adam
  2. Arouse1973

    Cuk converter ripple current

    Yep it's 2 x the percentage fraction of peak and trough. 15% is 0.15 * 2 = 0.3 and 85% is 0.85 * 2 =1.7 Adam
  3. Arouse1973

    Polarities on Fuse Holder?

    Yep I agree with that Kris. Adam
  4. Arouse1973

    Please Design This PCB...

    I thought I had seen it all. Words just aren't enough. Adam
  5. Arouse1973

    Common anode or common cathode display?

    I think the A might denote common cathode. Give that a try. Adam
  6. Arouse1973

    Cuk converter ripple current

    Ok have a look at C=I*dt/dv Adam
  7. Arouse1973

    Binary Counter

    I don't know is the honest answer. Adam
  8. Arouse1973

    Cuk converter ripple current

    I must admit the question is a bit woolly. I am not sure if it's what they are after, they should explain themselves a bit better. Adam
  9. Arouse1973

    Binary Counter

    No Probs, glad to help. Oh and it's Adam BTW :) Adam
  10. Arouse1973

    Binary Counter

    I think you need to include the CMOS library on your simulation. Your path name and library name might be different to mine but the procedure is the same. The first picture is with the same error as you, the second is with the directive statement above the IC and now it works. Adam
  11. Arouse1973

    Cuk converter ripple current

    The workings I gave was for 15% ripple current with 20 volts in and 12 volts out. If the input voltage changes then so will the duty cycle. The output power depends on your load so in your case it was a 10R @ 1.2A. You can put in allsorts of different figures but you will have to re-calculate. Adam
  12. Arouse1973

    Shadow signal

    You could possibly use a ganged pot that adjusted both timings together. Adam
  13. Arouse1973

    Cuk converter ripple current

    Good luck. Adam
  14. Arouse1973

    Shadow signal

    What about a mono-stable that works on the falling edge of the origional signal? Adam
  15. Arouse1973

    ESR Meter advise

    It might not effect what your doing but ESR is measured at 120Hz and its ripple current which is measured at 100KHz. Thanks Adam
  16. Arouse1973

    Fuse confusion?

    Ok so as you have not replied in an hour of our replies. As long as you make sure the voltage rating of the fuse is the same or greater than your mains voltage you will be fine. The voltage rating of a fuse comes into play when the fuse blows and is its plasma tolerance. Adam
  17. Arouse1973

    Fuse confusion?

    And voltage also Adam
  18. Arouse1973

    Fuse confusion?

    Hello Where do you live? What is the voltage of your mains? Adam
  19. Arouse1973

    Help with 74LS373N latch (Supernoob)

    Can we see your circuit? Thanks Adam
  20. Arouse1973

    Seeking Pro Help: Replacing Parts on This Card Reader With a Smaller One

    Ah missed that one, cheers. Adam
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