Answer by Martin L for "Temporary boost" supercap
I see no reason why this idea can't work in principle. Whether it is the best solution for your particular application is harder to tell. I did some searching to look for previous implementations of...
View ArticleClik here to view.
"Temporary boost" supercap
I have a 12VDC load (up to 10A) that functions correctly down to 8VDC. Sometimes (frequency: many seconds max, many minutes typical) the power source has a very brief (few milliseconds) drop to 7V....
View ArticleAnswer by Joseph Spencer for "Temporary boost" supercap
The LTC3350/LTC3351 https://www.analog.com/en/products/ltc3351.html#product-overview Do exactly what you need. You'll have to decide if it is worth the $5, but it will manage your super caps and hold...
View ArticleAnswer by Dmitri S for "Temporary boost" supercap
The first approach was to use a mosfet "ideal diode" in series with the power supply and a big capacitor across the input. However I failed to find a capacitor big enough that is also rated for...
View ArticleAnswer by WindSoul for "Temporary boost" supercap
Use a 5v regulator with a large input capacitor protected by diode and followed by a booster circuit raising the voltage to 10v. If your auxiliary power fails momentarily, the regulator will ride...
View ArticleAnswer by William Brown for "Temporary boost" supercap
A little quick simulation with LTspice and I see that a 22000uF 25V electrolytic cap and a 10A Schottky diode should work fine. You only drop to 9.4V after 5ms. Both parts less than 4 dollars in single...
View ArticleAnswer by Eugene Gordon for "Temporary boost" supercap
Stiffening Capacitors are rated for 16 to 20 volts, so they are available for your original idea however you shouldnt need anything else. Leave you gear wired up the way it is off the battery /...
View Article
