Constant current source for electrochemical application

EDAboard.com Forum Index -> Hobby Circuits and Small Projects Problems -> Constant current source for electrochemical application

Author

Message

Dspnut

Joined: 18 Jul 2002
Posts: 171
Helped: 4

17 Jan 2003 11:42 current source application

Hello all,
Does anybody out there has constant current source circuits which is suitable for electrochemical application (e.g. plating)? This circuit should be adjustable (current setting) and has maximum current rating at least 2 A.

Thank you in advance Very Happy

Google
AdSense
Google Adsense

17 Jan 2003 11:42 Ads

solvarg

Joined: 15 Feb 2002
Posts: 132
Location: Sweden

19 Jan 2003 0:22 Re: Constant current source for electrochemical application

Dspnut wrote:

This could maby help you:
h**p://www-s.ti.com/sc/techlit/slta006.pdf

Regards

bunalmis

Joined: 03 Jan 2003
Posts: 254
Helped: 5
Location: Turkey

20 Jan 2003 15:54 Re: Constant current source for electrochemical application

"This circuit should be adjustable (current setting) and has maximum current rating at least 2 A. "

What is the max load resistans. ?

If you want to use 1 kohm load, you need 2*1000 = 2kV

Dspnut

Joined: 18 Jul 2002
Posts: 171
Helped: 4

21 Jan 2003 8:06

Thank you solvarg and bunalmis for your comments

I expect the maximum resistance to be low (approximately 100-500 ohms). As I said in my post, this circuit will be used in the (electrochemical) plating process. I am not a chemist but I belive that the load resistance should be low to very low.

bunalmis

Joined: 03 Jan 2003
Posts: 254
Helped: 5
Location: Turkey

21 Jan 2003 10:29

Sory I am not chemist.

100-500 ohm very big value for analog current source. You must use switching type current source.

I designed capacitor charger for 1kW flash lamp using switch supply.
Problem is same. I can give only idea.

Sorry, but you need login in to view this attachment