Hello everyone.
I've been poking around at various parts in an attempt to build a custom light-bar for my brother.
The project revolves around the 100W LED modules, and this is where I hit a slight snag.
The bar will have 6 LED modules, each at approx 3Amps and 30-34V and I would like to avoid the need to purchase a constant current boost module for each LED.
The higher voltages required to connect them in series has me considering a parallel connection, and I came to the conclusion that I should use a 12V to 36V (or higher) constant voltage boost converter, then use something like an LM338 as a constant current supply in-line with each LED. The problem here is the power handling requirement for the shunt resistor makes this method more costly than buying multiple CC boost converters.
So, my question here is what would you do if you needed to connect 6 100W LED modules to a car that supplies 12V?
Trying to keep BOM down, but also looking to avoid fabricating a complicated circuit board.
I've been poking around at various parts in an attempt to build a custom light-bar for my brother.
The project revolves around the 100W LED modules, and this is where I hit a slight snag.
The bar will have 6 LED modules, each at approx 3Amps and 30-34V and I would like to avoid the need to purchase a constant current boost module for each LED.
The higher voltages required to connect them in series has me considering a parallel connection, and I came to the conclusion that I should use a 12V to 36V (or higher) constant voltage boost converter, then use something like an LM338 as a constant current supply in-line with each LED. The problem here is the power handling requirement for the shunt resistor makes this method more costly than buying multiple CC boost converters.
So, my question here is what would you do if you needed to connect 6 100W LED modules to a car that supplies 12V?
Trying to keep BOM down, but also looking to avoid fabricating a complicated circuit board.