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Suresh R
02/12/06 09:24
Read: 591 times
Chennai
India


 
#109797 - replies
Responding to: Andy Neil's previous message
Andy Neil said:

Why don't you ask the person you got it from?

He is not to my reach now.
But, since i need to assemble the components in its PCB now,
i though i should know how the circuit really works, for which i posted the doubts i got from it.
one was built earlier and was running.

Neil Kurzman said:

So it is a constant current source with less than 30mv ripple.

yes.

Neil Kurzman said:

Then it regulates current and voltage. It would only work with a constant load. Or you you are not sure?

the load is constant.
the current is being set according to the load using potentiometer R17 connected to LM358 i/p.

recalling the details,
suresh said:

Details:
The circuit is designed for plating purpose, for which the ripple voltage must be less then 30mV. So that plating is not grainy. The plating time can be varied using a timer that cuts the i/p of regulator when set time elapses.


kai said:

This circuit will never work!

iam interested in knowing the reasons.


List of 21 messages in thread
TopicAuthorDate
3A constant current source      Suresh R      02/11/06 04:41      
   Where did you find it?      Andy Neil      02/11/06 05:56      
   Ripple      Andy Neil      02/11/06 06:00      
      plating purpose      Suresh R      02/11/06 09:45      
         I got it from a person known to me      Andy Neil      02/11/06 15:04      
            replies      Suresh R      02/12/06 09:24      
               plating circuit      Terry Lingle      02/12/06 11:40      
                  Compliance of source      Steve M. Taylor      02/12/06 13:51      
                     yes      Terry Lingle      02/12/06 16:21      
         Think about that      Neil Kurzman      02/11/06 16:08      
   Component Purposes      Bruce Bailey      02/11/06 12:58      
   This circuit will never work!      Kai Klaas      02/11/06 19:46      
      Could it be?      Neil Kurzman      02/11/06 23:55      
         Function      Kai Klaas      02/12/06 20:08      
            issues      Suresh R      02/13/06 02:42      
                plating quality control.      Terry Lingle      02/13/06 07:29      
               Answers      Kai Klaas      02/13/06 11:36      
                  followups      Suresh R      02/14/06 02:20      
                     Answers II      Kai Klaas      02/14/06 07:01      
                        followups & Back EMF's?      Suresh R      02/15/06 03:59      
                           Floating regulator      Kai Klaas      02/15/06 09:27      

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