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Hi, What are the expected output ratings?

I have seen this done with a PIC somewhere. You could also use an ICL 7106 which has 3 and a half digit output.

Hi Logan, Well, I don’t think this is “our” Stig! So, you don’t know anything about Sweden?

Hi Mixos, Only on rare occasions files larger than 6800kb are accepted! I have tried many times to upload files from 9000 to 25000kb but never succeeded without splitting them first. The upload window states 50000kb and this is way off! :(

Hi bir-alma, Welcome to our forum. Can you please try to explain more in detail the pump problem?

Hi Bruce, Just a thought; why not use 30mm and 40mm PVC tube?

Hi Peron, I can see now you might have got your figures wrong, this project uses the 3162E and 3161E not the 3261 as you stated.

The online phonebook gives this: http://privatpersoner.eniro.se/query?stq=0&searchword=053315793&searcharea=&what=wphone

Hi AG, I have to agree but, there is some hope though! If the project consumes a lot less power like one tenth of what the wall wart was originally intended for it might work! ;)

I don’t know Stig very well but I know his passion lies in fifties and sixties rock music!

Hi MNA, I am sorry to hear this! I don’t know how Reget Deluxe works but I can tell you there are issues when uploading too! You can always try a message to Admin, but I have stopped uploading things since I only get strange answers when I ask about it and try to figure out what’s wrong. Other members who tried confirm the facts which I have presented so I know it’s not at my end! :(

Hi Bruce, The only thing that comes to mind is the snubber circuit around the triac. You will find suitable values for 60Hz in the data sheet of the triac you chose to use for the circuit. The nF is nano Farad which equals 1000pF or 1 thousand of a mF (uF).

Hi Indulis, I am not a chemist; I don’t have any chemical formulas to give. The important thing to mention here is; the battery must be mechanically in good condition for this to work. If the plates inside are damaged or out of alignment causing short circuit there is no chance what so ever to revive the battery. What I can tell you is; the sulphate crystals become harder the longer they are allowed to be left alone thus harder to dissolve which makes it impossible for a standard charger to cure. If you apply a higher voltage than the standard charger normally does the battery will boil and overheat and destroyed completely. If a battery is well charger at all times the forming of crystals are kept to a minimum. I have tried this method/circuit against many types of chargers and it does its job where other “special” chargers fail.

Hi bananasiong, Welcome to our forum, Yes you can use a motorcycle battery for your projects! You can also have different output voltages with the help of a regulator as long as the difference between the input and output voltages are high enough. Many regulators need 3 Volts difference but some will work with as low as 1 Volt. Beware though; this kind of battery must be handled with care. The short circuit current is very high and could cause serious burns. They sometimes emit hydrogen which is explosive and if you tip them over the acid might spill and destroy almost anything. ;)

Hi Peron, I believe the CA3261 is hard to get anywhere; there are no matches when I search for it. Can you post the circuit so we can see how and if it is possible to replace the CA3261 in your project?

Hi oldgrandpainmi, I have been into testing different methods of reviving lead acids through the last two decades. One of my circuits is posted here: http://www.electronics-lab.com/projects/power/036/index.html

Hi, Here is an explanation for you: http://hyperphysics.phy-astr.gsu.edu/hbase/solids/fermi.html

Yes, I believe the “Complex Behavior of Switching Power Converters” which is posted here at the community might be an option.

Hi Aan, Have you tried Google? You will find some nice links there. Is this an educational assignment ?

Hi Pinball Doc, I remember the last one I owned, it was a Bally named “Tar pit” and I sold it in 1980! Very nice machine! ;D

Hi Jack, If you have the folder in the right hand side of the explorer window left-click on it once to high lighten it, wait just one second or so then left-click it one more time. This should put the cursor on the line to let you write a new name, hit enter when finished. This is only possible in the right hand side when running XP, in previous windows versions it could be done also on the left side!

Hi, Maybe the circuit starts to oscillate when the HID put extra load on the 317. Can you post the circuit so we can see how it’s done?

Hi jack, I think Logan covered it very well; “hands on” is vital and should be given priority! Don’t misunderstand this but theory is sometimes unnecessary knowledge! Books are good to have in the bookshelf when you need to look something up, don’t try to learn them all by heart! Logan, you get an “A” for this one! ;D

Hi Rob, Yes I believe that’s good advice, today’s inverters have gone through a few technical generations in the past ten years. ;)