Switching from 12v to 9v
Is there any device that does it automatically or do I have to do it using a μcontroller? Where should I look?
Member • Apr 18, 2013
Member • Apr 18, 2013
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Member • May 2, 2013
Member • May 4, 2013
Thanks to all of you matesAT-OKJust a bit of extention to Mr.#-Link-Snipped-#'s Ans.
Diode must be able to switch fast.
Prefer using the schottky diode.
Best of Luck 👍
Member • May 14, 2013
Member • May 14, 2013
Member • May 31, 2013
Member • May 31, 2013
Uc is the most expensive But the most reliable once we can ever think of in solving this issuen.rajeev sharmai think relay will give u the chance and uc can be exact
Member • May 31, 2013
Not if it (12 v supply)is a usual transformer- rectifier kind of supply. The diodes of the rectifier themselves will block the reverse current.oprime#-Link-Snipped-# Should we not put diodes in series with both 9V & 12V source?
If we put diode in only 9V connection, when 12V source turns off, the current which is flowing from 9V source will enter the 12V source too and try to charge it.
Member • Jun 4, 2013