Hi all,
I'm a real noob at electronics and only really know the very basic principles.
I am looking for a good way to make a step down transformer to power high power 3W LED's, efficiency is key.
I have 2 input voltages I would like to use:
#1: 220v AC 50Hz
#2: 12v DC
The output voltage needs to be 3.3v at about 350ma, preferably regulated.
#1: I know there’s the classic step down transformer approach but I also know there is a way to do it using capacitors?
#2: I imagine there is a really simple way of doing this (voltage regulator), other than using a 4W 27Ω resistor, lol.
Any help will be much appreciated.
I'm a real noob at electronics and only really know the very basic principles.
I am looking for a good way to make a step down transformer to power high power 3W LED's, efficiency is key.
I have 2 input voltages I would like to use:
#1: 220v AC 50Hz
#2: 12v DC
The output voltage needs to be 3.3v at about 350ma, preferably regulated.
#1: I know there’s the classic step down transformer approach but I also know there is a way to do it using capacitors?
#2: I imagine there is a really simple way of doing this (voltage regulator), other than using a 4W 27Ω resistor, lol.
Any help will be much appreciated.