AC from V-mount battery
- Thread starter Bamboopictures
- Start date
i was using these DIY systems quite a while ago... i even have a dual system Vmount power pack..
However, most of the gears are DC powered these days, so it becomes very inefficient to invert to AC from DC, just to drive DC powered equipment again.... eg. if your laptop runs 18vdc, its a lot easier to step up the DC from a VMount as opposed to go thru the inefficiency of inverting.
However, most of the gears are DC powered these days, so it becomes very inefficient to invert to AC from DC, just to drive DC powered equipment again.... eg. if your laptop runs 18vdc, its a lot easier to step up the DC from a VMount as opposed to go thru the inefficiency of inverting.
Attachments
it's called a DC-AC inverter. They are pretty common and have been used ages ago for running TV & appliances in Cars, Buses, RV & Boats. Most are non-branded, but as a general guideline, you should be looking at buying 'Pure Sinewave' Inverters. There are cheap ones that uses 'Modified Sinewave' and those aren't exactly good. Modified sinewave inverters may end up blowing up your electronics or induce a lot of hum & electrical noise especially for video/audio equipment.
I 'm looking for a variable DC-DC boost/bust converter as per your suggestion since inverters aren't as energy-efficient for V-mount batteries. Do you have any suggestions for a 24V lightpanel that came only with an AC-DC brick?
if your device is 24v, i suggest you series up your Vmount (14.8 + 14.8) to 29.6v nominal, then you use a LM2596 DC to DC step-down regulator to drop & regulate to 24v. It's more efficient than a boost to 24v from 14.8v. 
Thats what i did for running my video gears with Bosch 18v tool batteries. 18v nominal, step-down and DC regulated to 12vdc to run my lights. For the PXW-Z90 camera, I used a slightly more inefficient way to drop 18v to 5vdc, then use the commonly available USB to 8.4v adaptor. I have since rewired a proper cable to drop 18v to 8.4v directly for the Z90... Even my FS5 ENG setup are powered this way... my Vmount output are regulated and distributed to my FS5 + LED lights + monitor.
Thats what i did for running my video gears with Bosch 18v tool batteries. 18v nominal, step-down and DC regulated to 12vdc to run my lights. For the PXW-Z90 camera, I used a slightly more inefficient way to drop 18v to 5vdc, then use the commonly available USB to 8.4v adaptor. I have since rewired a proper cable to drop 18v to 8.4v directly for the Z90... Even my FS5 ENG setup are powered this way... my Vmount output are regulated and distributed to my FS5 + LED lights + monitor.Attachments
Similar threads
