Somewhere there is a hidden way to find very inexpensive 48 volt high amperage power supplied suitable for those Sure Electronics modules that seem to be in almost everything these days. Computer bricks paralled, wheel chair chargers? I know some of you guys have found great ideas. Some of these units produce up to 600w so the amperage required is pretty hefty? Any Ideas?
If you need it for bench repairs, nothing wrong with 12Volt motorcycle batteries in series. A low current charger will keep them topped up.
Thanks, I actually ran my recording studio off of car battery's and Peavey mixers all split to multi outs that way in the 70's. Had the guys at Studio In The Country scratching thier heads??? I had great snr!! Ha!
This time I want to build some low cost small powerful hifi guitar amps, no tubes (on purpose) I need a good high current low cost find-able source. Anyone?
This time I want to build some low cost small powerful hifi guitar amps, no tubes (on purpose) I need a good high current low cost find-able source. Anyone?
Big transformer (suit the voltage and current), bridge rec, 10kuF cap and there it is. Can't get skimpier than that!
Will these boards such as he Sure Electronics safely allow one to go that route? What is the price you pay? Noise? Efficiency? Durability? Circuit Frying possibility? Yes I am actually that green on power supplies.
240V input an option? If not, keep an eye out on this ebay seller anyway, some really good stuff pops up on their shop from time to time. I almost didn't share this, so things didn't get sniped from me 😛
Tyco 596B5 24VDC 125A Galaxy Switchmode Rectifier Series S1 1DC 200 240VAC In | eBay
EDIT:
For 12V, PC power supplies are a really good option. Usually 20A and up. They will do 24V if you pair with the -12V rail, but usually only at an amp or so.
Tyco 596B5 24VDC 125A Galaxy Switchmode Rectifier Series S1 1DC 200 240VAC In | eBay
EDIT:
For 12V, PC power supplies are a really good option. Usually 20A and up. They will do 24V if you pair with the -12V rail, but usually only at an amp or so.
Last edited:
If you want to use a PC power supply for higher voltages, a DC-DC boost converter is an option. Between a cheap PC supply and a booster you are still well under the cost of a traditional 48V supply, though you will be limited to 240W output given the 20A input limit. They can be paralleled for more output if you use diodes, but then you start hitting diminishing returns between just buying a proper 48V meanwell or similar.
1200W 20A DC Converter Boost Power Supply Module 8 60V 12V Step UP12 83V 24V 48V | eBay
Telecom rectifiers are another good option, you will have to pull them apart in a lot of cases and figure out your own wiring though, so not for everyone.
http://www.ebay.com/itm/Nortel-Nort...094596?hash=item4d404a5344:g:kqkAAOSwc0FUounI
1200W 20A DC Converter Boost Power Supply Module 8 60V 12V Step UP12 83V 24V 48V | eBay
Telecom rectifiers are another good option, you will have to pull them apart in a lot of cases and figure out your own wiring though, so not for everyone.
http://www.ebay.com/itm/Nortel-Nort...094596?hash=item4d404a5344:g:kqkAAOSwc0FUounI
Last edited:
You could also do a lot worse than a few of these Chinese industrial SMPS modules in series for 48V, or diode paralleled for more current (they wont do 9A, but will do 6.2A continuous)
AC Converter 110V 220V to 24V Max 9A 150W Regulated Transformer LED Power Supply | eBay
AC Converter 110V 220V to 24V Max 9A 150W Regulated Transformer LED Power Supply | eBay
- Status
- Not open for further replies.