M
Michael
- Jan 1, 1970
- 0
This may be repeated posting...
I need to recharge a capacitor (strobe-like application). Once
capacitor voltage reaches ~230V the converter turns off (open loop
operation).
Input voltage 10V. Target Vout =230V. Cout=100uF (not that it is very
important). The converter needs to "replenish" ~0.6J in 4ms. In other
words recharge 100uF capacitor from ~200V to 230V in 4ms (or less).
It means 150W. The power requirement may be increased to 250W or more
(or so I was hinted).
The prototype uses flyback topology and it is only 50% efficient. I
can see where I can get another 10% (15% if I am lucky).
I forgot to mention that it is for hand held battery powered device -
efficiency and size are important. Small details....
What is the chance of getting better efficiency out of, say, push-
pull converter?
Thanks!
I need to recharge a capacitor (strobe-like application). Once
capacitor voltage reaches ~230V the converter turns off (open loop
operation).
Input voltage 10V. Target Vout =230V. Cout=100uF (not that it is very
important). The converter needs to "replenish" ~0.6J in 4ms. In other
words recharge 100uF capacitor from ~200V to 230V in 4ms (or less).
It means 150W. The power requirement may be increased to 250W or more
(or so I was hinted).
The prototype uses flyback topology and it is only 50% efficient. I
can see where I can get another 10% (15% if I am lucky).
I forgot to mention that it is for hand held battery powered device -
efficiency and size are important. Small details....
What is the chance of getting better efficiency out of, say, push-
pull converter?
Thanks!
