ledcomp
May 17, 2015Explorer
LED Dimmer
I wanted to stabilize my LED lighting circuit voltage using a buck/boost converter. When the LED's are dimmed you can see alot of fluctuation from battery voltage change like when the water pump cycle...
GordonThree wrote:ledcomp wrote:GordonThree wrote:
How well do the LED perform at 9 volts? A straight buck converter would be easier to find than a boost-buck, forward or sepic converter.
Are you dimming all the leds in the rig, or just a strip of them, or a single fixture?
I was trying to regulate the lighting circuit at the distribution panel. 3 lighting fixtures have a pwm dimmer, the rest are not dimmed. I do not mind loosing some brightness by using a buck converter. I would need to try them at 9 volts, that might be on the low side.
A buck that goes into passthrough when vIN = vOUT would work. Set for 11v or even 12v you'll only see that voltage on an almost dead battery.