Electronics > Beginners

Potentially a stupid question but...

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Bratster:

--- Quote from: sbmotoracer on December 31, 2018, 08:42:53 am ---@james_s - fair enough. I'm curious though if such a thing were possible, why would anyone bother with a step up transformer. Also in something like that how would you account for differences in the circuits breakers. Ie one plug has a 20amp breaker while the other has 15amp breaker.

@Ian.M - You wouldn't happen to know any company who has designed such a device that would be able to do that?

--- End quote ---
If you don't need high power 240 volts it's much simpler to just do a step up transformer.
Then you don't have to deal with locating 2 outlets on different phases, since most likely that will be in another room so then you have extension cords running around Etc.


But for high-power 240 volts like what you need, a step up transformer becomes expensive, heavy, and most importantly requires way too much power input at 120 volts.

And in that case making an adapter is not a completely terrible idea. But you still need to separate outlets on different circuits.

so most likely you will need a cord running off into another room in addition to the room that you are in.

Ideally you would include some relays in this adapter so that it only connects the output when it gets both inputs. That also make sure that there is never any exposed voltage on the male pins. and if a circuit breaker trips it will protect any other loads on that circuit from possibly seeing voltage.

Sent from my Fi Moto x4 using Tapatalk

Bratster:
In regards to one circuit being 20 amps and the other circuit being 15 amps you would be limited to the lowest amperage circuit.

So in that case you would only have 15 amps available before that breaker would trip.

Sent from my Fi Moto x4 using Tapatalk

t1d:
IR6500 @110v
https://www.ebay.com/itm/IR6500-Infrared-BGA-Soldering-Rework-Station-Repair-Heating-Machine-110V-1250W/332843069999?hash=item4d7efe322f:g:powAAOSwrFtaDlCh:rk:9:pf:0

sbmotoracer:
Sorry for the late reply, been dealing with some "fun" migraines these past few days...

@Bratster/@cs.dk Would a step up transformer be able to handle the initial high draw from a bga machine? Im assuming the inital draw would be something akin to when a Ac starts up it's motor. Most high 2000+ watt step ups im finding on amazon are $100ish dollars.

While I wouldn't mind running extension cables, my biggest concern would be them coming unplugged since I'm not the only one living here. Closest non kitchen plugs would be upstairs. I wouldn't even begin to know how to design something that could 100% disconnect the power leads when one is unplugged.

@t1d - How did you find a non 220Vac bga machine? I've spend over 3wks trying to find one lol. By any chance do you live in the US or only use the US ebay? I wonder if the .com listings are different then the ones shown on the .ca site. But thank non the less :-)

t1d:

--- Quote from: sbmotoracer on January 04, 2019, 08:20:22 am ---Sorry for the late reply, been dealing with some "fun" migraines these past few days...
--- End quote ---
I fought those, as a youth. I said a prayer for you.

--- Quote from: sbmotoracer on January 04, 2019, 08:20:22 am ---@t1d - How did you find a non 220Vac bga machine? I've spend over 3wks trying to find one lol. By any chance do you live in the US or only use the US ebay? I wonder if the .com listings are different then the ones shown on the .ca site. But thank non the less :-)

--- End quote ---
I don't know about the shipping issues. I would contact the seller and ask if they would send it directly to you. If they will only send it to the US, I have heard of professional reshippers... You use their address to receive it, here, and they reship it to you. You would have double postage, but I don't think the reshipper's handling fee is supposed to be all that bad. Maybe someone has experience with doing that...

I think I have bought things off of the other national Ebay sites... The one for Great Britain, maybe... But, yes, different things are listed for different markets. A portion of that has to do with the manufacturers, themselves, limiting their market areas.

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