yshimizu
Newbie level 3
Hi friends,
I am trying to construct a 500W Power supply for a massive LED that I have.
The specs of the circuit are:
P = 500W
Iout > 7.8A
Vout = 72V±2V
Vin = 120V 60 & 50Hz AC (USA and Japan wall socket)
I am currently looking at a couple of solutions.
1. Buy 2 of these and hook them up in serial **broken link removed**
2. Variac -> bridge rectifier -> massive capacitors -> current control resistor -> LED
The reason I am looking at a Variac is because it seems to be cheaper to get a variac than an actual transformer. And maybe i am looking in the wrong parts of the internet but I am having trouble finding transformers that match my requirements. I am open to other creative solutions too, I just want to run this thing as cheap as I can. I asked a power circuits professor that I know and he suggested looking up a couple of Dc-Dc converters up and examining their schematic. I'm sure he has some good advice but from what I see here you guys are pretty good with stuff like this too. Also please let me know if there are problems with my two suggestions.
Cheers
I am trying to construct a 500W Power supply for a massive LED that I have.
The specs of the circuit are:
P = 500W
Iout > 7.8A
Vout = 72V±2V
Vin = 120V 60 & 50Hz AC (USA and Japan wall socket)
I am currently looking at a couple of solutions.
1. Buy 2 of these and hook them up in serial **broken link removed**
2. Variac -> bridge rectifier -> massive capacitors -> current control resistor -> LED
The reason I am looking at a Variac is because it seems to be cheaper to get a variac than an actual transformer. And maybe i am looking in the wrong parts of the internet but I am having trouble finding transformers that match my requirements. I am open to other creative solutions too, I just want to run this thing as cheap as I can. I asked a power circuits professor that I know and he suggested looking up a couple of Dc-Dc converters up and examining their schematic. I'm sure he has some good advice but from what I see here you guys are pretty good with stuff like this too. Also please let me know if there are problems with my two suggestions.
Cheers