Yuasa NP series sealed rechargeable lead-acid battery application manual Relates to YUASA NP series but of general application with due care. http://www.battery-usa.com/Catalog/NPAppManual%28Rev0500%29.pdf
> > Yuasa NP series sealed rechargeable lead-acid battery application manual > > Relates to YUASA NP series but of general application with due care. > > http://www.battery-usa.com/Catalog/NPAppManual%28Rev0500%29.pdf > -- Had a little grin at the battery charger circuits - "reference only, no part numbers available", yet they are clearly designed around a specific chip, they way the connections are done. -- -- Scanned by iCritical.
On Tue, Jul 24, 2012 at 1:32 AM, <alan.b.pearce@...> wrote: > > > > Yuasa NP series sealed rechargeable lead-acid battery application > manual > > > > Relates to YUASA NP series but of general application with due care. > > > > http://www.battery-usa.com/Catalog/NPAppManual%28Rev0500%29.pdf > > -- > > Had a little grin at the battery charger circuits - "reference only, no > part numbers available", yet they are clearly designed around a specific > chip, they way the connections are done. > -- > Looks to be an LM723 unless I'm very much mistaken....
> > > Yuasa NP series sealed rechargeable lead-acid battery application manual > > > http://www.battery-usa.com/Catalog/NPAppManual%28Rev0500%29.pdf > > Had a little grin at the battery charger circuits - "reference only, no > > part numbers available", yet they are clearly designed around a specific > > chip, they way the connections are done. Denny Esterline <desterline@...> wrote: > Looks to be an LM723 unless I'm very much mistaken.... Wow! 723! Haven't seen one of those mentioned for 'some while". The original universal regulator ICI probably still have some in the deep dungeon. 69 cents/1 DIP at Digikey. TO100-10 still available but costs rather more. Fig 19 in data sheet bears a 'suspiciously strong' resemblance to their fig 14. http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00001008.pdf Russell
> > > > Looks to be an LM723 unless I'm very much mistaken.... > > Wow! > 723! > Haven't seen one of those mentioned for 'some while". > Yeah, can't remember if I had breakfast this morning, but give me a half a schematic with an unlabeled 20 year old chip.. I'm all over that shizzz...
On Tue, 24 Jul 2012 14:51:35 +1200 RussellMc <apptechnz@...> wrote: > Yuasa NP series sealed rechargeable lead-acid battery application manual Very interesting. Always amazed at the sheer variety of charging algorithms... John
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