Power supply

[pinman]

Would this power supply be sufficient for a small silver cell?
http://www.tequipment.net/ElencoXP-620.html

 

[goldsilverpro]

Would this power supply be sufficient for a small silver cell?
http://www.tequipment.net/ElencoXP-620.html

It looks like it's only 3 amps max. Not much, but big enough for about a 1/2 gallon cell that could produce about 12 grams per hour.

 

[butcher]

for a small cell you are limited by cell size because of current capacity.

why spend big money on power supplys? do you have acsess to a computer power supply, from an old computer you are scrapping? that is a regulated power supply, with just as much or more current capacity than the one you are looking at,you can find information on the web for wireing them using a resistor for a trick load,
once you have a DC source, voltage or current can easily be limited, with resistor's or light bulbs or by other means, a transformer,
a bridge rectifier, and a hand full of other electronic components can be put together to build a power supply, or a regular car battery charger and light bulbs will work(if you want to get fancy add a variac, to adjust voltage, large reostat to limit current.

with a little study in basic electronics power supplys can easily be made.

one of the guys here on the forum got ahold of some very nice powersupplys and oscilliscopes and he will probably sell you one at a more than fair price.

I have made my own large reostats with nichrome heater wire and ceramic.

 

[pinman]

Appreciate the insight. It came into the 2nd hand store so I figured I'd ask, they're only asking 4$. What about for a deplating cell, same parameters?

 

[butcher]

four dollars get it.

 

[copperkid_18]

gets What?

 

[butcher]

the power supply

 

[copperkid_18]

whats the specs

 

[butcher]

see PinMans post above.

 

[copperkid_18]

the elenco one? if so ill take it

 

[T3sl4]

Oh, speaking of power supplies, I designed an adjustable, programmable 5V, 100A power supply for heavy duty (but nonindustrial) electroplating applications. I'm thinking I could build them for $800, or quite a bit less if you don't need the laundry list of features the complete design has (maybe $400 for two knobs, two meters, a power plug and some big honkin' terminals).

Tim, shamelessly advertising :lol:

 

[Lou]

Well at least your prices are a fifth of what a Lambda power supply would be.

 

[Harold_V]

Well at least your prices are a fifth of what a Lambda power supply would be.

I just happen to have four of the Lambda supplies. 5 volts, regulated---one of them is an LM H5-OV-Y-M. Good for 140 OA @ 40° C. Two are smaller, model LM F5-M-R, each good for 48 OA @ 40° C. Fourth one is smaller yet, good for only 30 amps. Don't happen to have the specs at my disposal at the moment, but virtually identical in appearance to the second two that were mentioned.

I need a 15 volt supply---for anodizing.

Harold

 

[qst42know]

Harold

Will close do?

A 12 battery charger should put out about 14.5v.

 

[lazersteve]

I just happen to have four of the Lambda supplies. 5 volts, regulated---one of them is an LM H5-OV-Y-M. Good for 140 OA @ 40° C. Two are smaller, model LM F5-M-R, each good for 48 OA @ 40° C. Fourth one is smaller yet, good for only 30 amps. Don't happen to have the specs at my disposal at the moment, but virtually identical in appearance to the second two that were mentioned.

I need a 15 volt supply---for anodizing.

Harold

Here's a link that may solve your problem Harold. If you need help with assembly or parts, shoot me a PM.

Simple High Current DC Power Regulation

All you need to know is the amperage requirements of the load. The power will be supplied from the mains, a step down transformer, and a bridge rectifier of the appropriate amperage rating.

Steve

 

[Irons]

Your wish is my command:

http://www.national.com/analog/power/buildit

 

[Harold_V]

Here's a link that may solve your problem Harold. If you need help with assembly or parts, shoot me a PM.

Simple High Current DC Power Regulation

All you need to know is the amperage requirements of the load. The power will be supplied from the mains, a step down transformer, and a bridge rectifier of the appropriate amperage rating.

Unfortunately, the load is, and will be, variable. It's determined by the area of the item(s) to be anodized. I have learned that 15 volts is desirable, however, so I'm on target in that department.

I am awaiting more information before I make any decisions. I may have to dig out the large three phase rectifier I have, which offers adjustable voltage, and is capable of up to 300 amps. It's dismantled, needing a sand blasting and painting in the worst way. It came from a plating shop, so the cabinet has considerable corrosion. I will eventually do the rebuild, but I'd like to be able to anodize before that is accomplished. Therefore, my interest in, possibly, using the power supplies I mentioned.

Steve, from my casual observation, the link you provided makes it clear that the devices are not well suited to high amperage. I expect I'd have to have the ability to run as high as 30 amps. I'd appreciate your professional opinion in that regard. Seems the items in question are very limited as to the amperage that can be controlled. Maybe I misunderstood what it said. I'm not well versed on electronics.

Harold

 

[Harold_V]

Your wish is my command:

http://www.national.com/analog/power/buildit

Sounds expensive, Irons. I'd like to do this without a huge investment. Thoughts?

Harold

 

[Harold_V]

Harold

Will close do?

A 12 battery charger should put out about 14.5v.

A friend that has anodized for quite some time suggested a battery charger would work, although it must be one without any frills. He claims reasonable success when using one with a battery in the circuit- and also mentionded that anodizing can be accomplished at somewhat lower voltages. That is one avenue I may have to explore. I do have a large battery charger as a last resort. Thanks for your thoughts, Q42!

Harold

 

[Higashi]

I just happen to have four of the Lambda supplies. 5 volts, regulated---one of them is an LM H5-OV-Y-M. Good for 140 OA @ 40° C. Two are smaller, model LM F5-M-R, each good for 48 OA @ 40° C. Fourth one is smaller yet, good for only 30 amps. Don't happen to have the specs at my disposal at the moment, but virtually identical in appearance to the second two that were mentioned.

I need a 15 volt supply---for anodizing.

Harold

Here's a link that may solve your problem Harold. If you need help with assembly or parts, shoot me a PM.

Simple High Current DC Power Regulation

All you need to know is the amperage requirements of the load. The power will be supplied from the mains, a step down transformer, and a bridge rectifier of the appropriate amperage rating.

Steve

that's a good one.

I found another good one (good as in the tutorial is comprehensive) from website of a plating company.
i simulated it in Proteus, doesn't give out that much amp as said, but i don't really trust simulation in Proteus for stuffs other than digital and microcontroller related stuffs.