Quote:
Originally Posted by luRaichu
What isn't mentioned is that doing it this way should cut the overall capacitance value in half. Some also say it decreases the volt tolerance.
I'm not taking a risk with such a hack.
|
You can over provision the voltage handling to avoid any risk, and you up the starting capacitance to reach the target bipolar value. It's also fairly common to parallel a film cap across the electrolytics in order to keep the ESR impedance low.
If you do it right, it's not risky.
Also, you can probably just use a film cap instead and be done with it. There are some places in a set that you might not want a film cap because it will cause ringing or uneven brightness, but most places it's fine
It used to be many years ago that film caps were simply not available in higher capacitances as electrolytics were, and they tended to be more expensive, so they didn't use them. Nowadays, you can get them up into normal value ranges pretty high; although the very high ones are still pretty expensive