9v to 12v converter

keir

Looking for a solution to step up 9v to 12v to power my musicom lab mkiv. It must be able to put out around 500ma after conversion as I need to possibly run a second pedal from the same converter. The mkiv needs 300ma and the second pedal ~200ma

Ive got an advert up on the emporium for a gigrig supanova but was wondering if anyone knew of any other solutions please 

ecc83

If you can solder a DC-DC converter would be an easy solution (but 9V in, 12 V out might be hard to find and need some creative thinking/kludging!) .

Personally I would just grab an 8 cell AA battery holder from Maplin plus a PP3 clip and co ax power plug. Bit of sleeving and you are golden. AAs last out many PP3s and are much cheaper.

Dave.

juansolo

.5A is a lot of grunt to get out of a dc-dc converter... The ones I know of need 5V in, so you'd regulate down to that then get the 12V out, but they're nowhere near 500mA. Best to just bite the bullet on that and buy a 12V PSU.

ecc83

http://www.maplin.co.uk/p/5w-12v-pcb-ac-dc-converter-a67qf

Not DC to DC, Maplin seem to have dropped them. The converters are available in every power level, half an amp is puny.

Dave.

juansolo

Yep, but if you're gonna do that, you may as well just buy a 12v PSU that'll do the same thing. He wanted a .5A 12V DC feed from a 9V DC source.

You'll only get 100mA from a charge pump and the DC-DC converters tend to be around that or less also. If you can only have one PSU, get a 12V PSU and then stick a regulator and a couple of caps in a box to get you the 9V DC from that.

ecc83

juansolo said:

Yep, but if you're gonna do that, you may as well just buy a 12v PSU that'll do the same thing. He wanted a .5A 12V DC feed from a 9V DC source.

I agree but not how the original question was phrased. The "customer" is always right!

Dave.

robinbowes

As the OP noted, the GigRig SupaNova does just what he wamts

juansolo

Yep, certainly appears to do so. Would be interested to see what they've put in there to do that. It'd still be much cheaper to buy a 12VDC PSU... Which is still befuddling me as to why you wouldn't really.

From the specs:

Output Voltage 12V DC. At 450mA...

Output Current max 999mA approx. 

robinbowes

They use MORNSUN DC-DC converters. eg. The El Paso uses PWB2415MD-6W.

R.

juansolo

Beefy things! Sadly none of the big three suppliers have them here. Would explain why I'd never seen them.

Gadget

The Musicom website says it only needs 300mA (?) http://www.musicomlab.com/efxmkiv.htm

In which case, have you thought about the Pedal Power Digital, which is more expensive but has four outputs at 9 or 12V?

keir

Thanks for all the replies, I'm using a Stymon Ojai for power which has 500ma @ 9v per outlet. I've moved away from voodoolab power as my board weighed a tonne with a 4x4 and a pedal power 2 plus underneath and I was getting noise through my DMM when it was near the power supply.

The reason I want 500ma is so I can split the 12v to power both the musicomlab and a tc helicon mic mechanic rather than using 2 different adaptors.

The Godlyke Iso-pump seems to do the job as well (480ma @ 12v) as the Gigrig unit so might try and track down one of those if I cant pick up the gigrig second hand over the next week or two.

pmg

keir said:

The reason I want 500ma is so I can split the 12v to power both the musicomlab and a tc helicon mic mechanic rather than using 2 different adaptors.

Well, well, well....

keir

pmg said:

keir said:

The reason I want 500ma is so I can split the 12v to power both the musicomlab and a tc helicon mic mechanic rather than using 2 different adaptors.

Well, well, well....

Rumbled!