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ffej
Experienced Roboteer
Joined: 22 Jun 2004
Posts: 595
Location: Kurrajong, NSW
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People looking for a peak charger may want to check this charger out.
http://www.perthrc.com.au/News/news.html
The SuperNova 3000 is what I use to charge my packs atm, only I got mine before they upgraded it and added the LiPoly charging. From what I hear on the RC forums, both the supernova and the triton are based on the same design, with a only a few differences, like the the case, the way of scrolling through menu's, etc. It comes with a set of banna plugs with alligator clips on the end for attaching to the batery to be charged. Also, the SuperNova can charge 30 cells at 5A, as opposed to the Triton which can only charge 24 cells at 5A, which may be useful to some people who plan to build bigger bots that OV 24V motors to 36V.
Depending on the freight charges from Perth, it could work out $20 or so cheaper than the triton, and much less waiting time, as the Robot Marketplace seem to be damn slow at delivering stuff, well, mine anyway . . . _________________ Jeff Ferrara
fb@ffej.net
ffej.net
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Thu Aug 05, 2004 5:42 pm |
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Spockie-Tech
Site Admin
Joined: 31 May 2004
Posts: 3160
Location: Melbourne, Australia
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A good powerful battery charger is actually very easy to construct for yourself.
There are only 4 sections required, a Transformer, a DC Rectifier (Diodes), Filtering (capacitors), and a regulator (Transistor-like widget). The circuit diagram is very simple, and anyone who can wire up a robot could probably do it easily in a few hours.
The catch comes in that the parts necessary to flow many amps arent cheap.. I'd guesstimate a figure of around about $20 per amp to buy the bits from JayCar type places.
If you only wanted 1-3 amps, its fairly easy to scrounge up the parts from recycled power supplies for other applications, but once you start heading for 4 amps plus, theres not much on the scrap heap that uses that sort of power.. about the only thing that I can think of would be a big old home-stereo type amplifier.. They quite often have some nice big toroidal transformers, diodes and big filtering caps in them..
If you cant swing a second hand source of power parts, then either hunt around E-Bay, look for one of those surplus power supplies some of the americans sometimes find, or else pony up the cash and go shopping for the big bits you need. If anyone wants to go this route, let me know and I'll post some info on the regulator and filter design I used in my 25 amp supply. _________________ Great minds discuss ideas. Average minds discuss events. Small minds discuss people
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Sat Oct 30, 2004 12:05 am |
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