Pretty sure you're going to need more than an 'adapter'. An inverter for instance. 110VAC to 12Vdc is much easier, especially at low current.

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I wanna go fast!

"110VAC to 12Vdc is much easier, especially at low current. "

i've got an inverter that goes from 12v to 110v, that is, you can power a 110v "thing" with your car. those are easy to find. what i need is to power this 12v "thing" by eventually plugging it into a 110v socket in a wall in my workshop.

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Dan Empfield
aka Slowman

What you need is a TRANSFORMER.

Here is one from Amazon 110v AC -> 11.95v DC - http://smile.amazon.com/...ords=12v+transformer

What you need to know, however, is what wattage you need. How many watts does the jack require? That one is 75w. Is that enough?

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"Non est ad astra mollis e terris via." - Seneca | rappstar.com | FB - Rappstar Racing | IG - @jordanrapp

I misunderstood the direction you wanted to convert. Anyway, what you're looking for is something like this:
http://www.amazon.com/...10v+to+12v+converter

But again, depends on the wattage (amps) you need. The more power you need to draw, the larger, more complicated, and expensive the devise will become. The one above is good for slightly more than 1/2 an amp at 13.5Vdc.

This one is good for almost 6 amps, but bulkier:
http://www.amazon.com/...10v+to+12v+converter

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I wanna go fast!

i saw that one you linked to. it just looks kind of light duty.

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Dan Empfield
aka Slowman

I'm guessing he's going to need something more like this. He needs DC voltage output (as ironmanatee said) but lots of amperage. The first jack on the google list took 30A, so not your normal electronics DC supply.

http://www.amazon.com/dp/B00JEJZ1MA

Don't know about the connectors though. Perhaps someone who knows something about towing can explain the wiring of a 4way or 7 way connector. it seems like you just need 2 wires for the jack but I know those connectors need to operate trailer brake lights, turn signals, etc...

Exactly. How many amps does your jack draw at 12Vdc?

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I wanna go fast!

The easiest way to run a 12V motor is with a 12V battery,

Do you have an old battery and a trickle charger, you could throw a current rated switch in line.

You will likely need a switch some where close for micro adjustments.

What your looking for is a "12V DC power supply" some adapters/suplies are heavy duty and would likely match the current rating on you motor. What is the nameplate current.

Maurice

This is what I would do to, likely a smaller car battery and a 2 amp smart charger. Another solution that's possible is to convert a server or computer power supply to do the job BUT if this is for a client, I would stay away from that solution like the plague. Just too much that can go wrong.

Definitely depends upon current draw of the motor. My first thought would be something along the line of these power supplies:
http://radioproshop.com/...d-ps/powersupply.htm

i don't want to do the 12v battery. i thought about that. once i get this thing up and running, and i'm happy with it, i'm going to post the plans online and send them out to all the fitters who want to built these for their studios. i really don't see them all putting car batteries in their studios. they'll need a cleaner solution, and one that does not cost a fortune.

i'm guessing a 15 amp power supply would do it.

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Dan Empfield
aka Slowman

Just buy some old treadmills off of craigs list, remove the belt, and attach your fit bike. Voila, instant controllable incline.

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Take a short break from ST and read my blog:
http://tri-banter.blogspot.com/

At 15amps you're going to need a nearly 200 Watt 12Vdc power supply, something like:
http://www.amazon.com/...W+12vdc+power+supply

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I wanna go fast!

Generally a transformer takes AC and outputs AC. The link appears to be more for lighting control and mentions 12V @ 40kHz.

...Granted you could rectify and filter it, but that wouldn't be very plug-and-play.


Dan,
Here's a pile of example industrial AC-DC supplies. May be a bit pricey for your needs. (and likely need a little better protection from grabbing a hold of 110V, such as a real enclosure).

http://www.alliedelec.com/...avigation=4294965228


You can filter by output voltage and wattage, etc...

the one i have now is powered by a cordless drill. you can hold an 18v drill in one hand and crank up the fit bike. trailer jacks are very low-geared, just like any linear actuator based on threaded rod.

an electric trailer jack is way overkill. but, they're cheap. i can't think of anything else nearly that cheap. if i go buy a motorized linear actuator it's going to cost me a lot more money, seems to me.

so, if there's another way to make this dog hunt i'm all for it. otherwise, considering the fairly light power requirement, can this be as easy as wiring the 12v wires into a cigarette lighter plug, plugging it into the 12v to 110v adapter, and off we go? or, do i need a big boy power supply?

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Dan Empfield
aka Slowman

Have you looked into a motorcycle stand ? No electricity required.

http://www.amazon.com/...0YF2J7JK9VSY74H515QG

you can do it with a manual trailer jack, no electricity required. i just think it would be cool to electrify it.

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Dan Empfield
aka Slowman

If you are just building an incline table you could get away with something smaller/cheaper like this:

http://www.mpja.com/...ductinfo/19007%20MD/

And for 12V power supplies, select based on max amperage needed:
http://www.mpja.com/...Supply/products/537/

Dan, keep in mind you need a 110V AC to 12V DC power supply. There are many options available that you could pursue, and yes, fairly inexpensive. Being that the jack motor is 12V Dc, the specs should list the current draw in amps at full load. Take that and then look for an appropriate power supply. This could have any type of connector, (cigarette lighter, terminal strips, etc) and connecting would be simple, so type of connector shouldn't be a concern. My take is you are looking to make it a somewhat "built in option" so wouldn't need a supply with meters or a nice outside housing such as I posted in my other link.

Do you know current, in amps of the motor?

The motor referenced draws 17Amps at 'stall' speed and is only $15. A power supply from the same suppliers $60 for a 25Amp supply (gives some overhead for the current draw) or $35 for an 18 Amp supply. Wiring would be just a local grounded line cord to 110 wall outlet, and straight wires from supply terminal strip to connector strip on the motor.

For a bit over $200, you could put these together to do what you want. Probably need some brackets and switches too.

http://www.robotshop.com/en/12v-10a-ac-dc-power-adapter-actuators.html?gclid=CKy437-0vsECFbPm7AodYi0A8g

http://www.firgelliauto.com/...90&products_id=5

The costs I noticed on electric jacks were not that much less than these... (And that's without a power supply)

.

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Remember Luddites are people too...

"If you are just building an incline table you could get away with something smaller/cheaper like this"

i like it. and it's cheap. but, much better if it's already wired 110v. but i need more travel. is there a next size up? and 110v?

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Dan Empfield
aka Slowman

okay, so, i think we're getting somewhere. here's this linear actuator, then you've got this variable speed controller, then you've got this power supply, and we're there?

the idea being that 2 wires go out of the actuator and into the controller, 2 wires from the controller to the power supply, 2 (or 3) wires from the power supply to the 110v plug, plug goes into the receptacle, presto?

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Dan Empfield
aka Slowman

what do you think of this bad boy? a right angle lead screw might be space saving for me - i could stick the thing inside, underneath the table the fit bike sits on. faster travel. holds more weight.

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Dan Empfield
aka Slowman