Hi,
I just made a variable voltage power supply like GreatScott on youtube has made. I tried the supply with a 48W 12V LED work light I want to fit on my car. When I plug it in the 12V, the current reads 1.8A for about five seconds and then it goes to 0.8A and 10.8V. Even when I increase the voltage with the potentiometer on the LTC3780, voltage and current stay the same.
Any advice on how to go about debugging this?
My only idea is that the LED light is somehow regulating something, so I've ordered a power resistor just in case.
Thanks in advance,
Jens
I just made a variable voltage power supply like GreatScott on youtube has made. I tried the supply with a 48W 12V LED work light I want to fit on my car. When I plug it in the 12V, the current reads 1.8A for about five seconds and then it goes to 0.8A and 10.8V. Even when I increase the voltage with the potentiometer on the LTC3780, voltage and current stay the same.
Any advice on how to go about debugging this?
My only idea is that the LED light is somehow regulating something, so I've ordered a power resistor just in case.
Thanks in advance,
Jens