### Might be a good idea to differentiate between regulating and limiting. They're not quite the same thing.
At 01:02 PM 8/15/01 -0400, you wrote: >A good current limiter can be made with a LM-317 >voltage regulator and a resistor. Here is a link to the datasheet >including some interesting schematics. > >http://www.national.com/ds/LM/LM117.pdf > >I think you will find that if you are using good >quality distilled water that the current is self limiting. ## But not self regulating. It's being controlled changeably by the increasing conductivity of the CS. >I turn my generator off when the current reaches 2.5ma ##That is a manual current "upper limit" verses the current staying at a set value. >which is the same as 15kohm or approximately >10ppm. I am using a 37.5v computer grade power supply >from an HP printer (low ripple). > >If you were using 27v you would want 1.8ma >for the same final resistance. I use 2 1/4" spacing >on 14ga .9999 silver wire. The distilled water >reads 1.2uS at the start and finishes at 11.0uS >consistently. ## Or, if you're controlling current at say 2 ma, you'd want to stop at around 12 to 14 volts depending on what sort of PPM you want and electrode spacing/wetted surface. I wouldn't use 2 ma unless I was also doing constant mechanical stirring. >Most of the machines that shut themselves off use >current regulation to get a voltage drop which is >used to trigger the shut off point. ### Absolutely. Voltage comparators don't work for a shut down if the voltage doesn't change. However, current regulation or control will work to control rate of ion production without a comparator. Current limiting doesn't control ion production rate, it only stops it from exceeding a maximum. Current control lets the voltage go high if conductivity is low and voltage go low if conductivity is high. Ken > >quietcove > >----- Original Message ----- >From: <[email protected]> >To: <[email protected]> >Sent: Wednesday, August 15, 2001 12:12 PM >Subject: Re: CS>current control circuit > > >> Ken, >> >> Would you send me a schematic of your current control circuit? >> >> John >> >> >> -- >> The silver-list is a moderated forum for discussion of colloidal silver. >> >> To join or quit silver-list or silver-digest send an e-mail message to: >> [email protected] -or- [email protected] >> with the word subscribe or unsubscribe in the SUBJECT line. >> >> To post, address your message to: [email protected] >> Silver-list archive: http://escribe.com/health/thesilverlist/index.html >> List maintainer: Mike Devour <[email protected]> > >
