Hi all,
I made this circuit http://forum.allaboutcircuits.com/showpost.php?p=353757&postcount=10 using NE555. It works fine and now I´d like to upgrade it.
I want to control 7 high power leds with 24V Vin (500mAh), but I don´t think it´s a great idea to burn about 4,5W using LM7815. Is there a way to use a battery (9 or 12V) to feed the 555 and use the 24V directly to transistor?
If not, what would be an efficient way to do that?
Already thanks.
I made this circuit http://forum.allaboutcircuits.com/showpost.php?p=353757&postcount=10 using NE555. It works fine and now I´d like to upgrade it.
I want to control 7 high power leds with 24V Vin (500mAh), but I don´t think it´s a great idea to burn about 4,5W using LM7815. Is there a way to use a battery (9 or 12V) to feed the 555 and use the 24V directly to transistor?
If not, what would be an efficient way to do that?
Already thanks.