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stevech
Joined: 23 Feb 2006
Posts: 688
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GTBecker
Joined: 18 Jan 2006
Posts: 472
Location: Cape Coral
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Posted: 19 February 2007, 16:47 PM Post subject: |
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I have a 5v single-AA unit arriving today for trial. Looks interesting, I agree.
Last edited by GTBecker on 21 February 2007, 12:55 PM; edited 1 time in total |
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GTBecker
Joined: 18 Jan 2006
Posts: 472
Location: Cape Coral
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Posted: 19 February 2007, 20:06 PM Post subject: |
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It has a 0.1" header on the end for a power switch or a jumper, as supplied.
I've put one on a ZX-24a that's running my Hobbs code with one LED illuminated 50% of the time; we'll see where it stops. I have another that I'll load up to see what it can do.
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stevech
Joined: 23 Feb 2006
Posts: 688
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Posted: 19 February 2007, 20:29 PM Post subject: |
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OK! time to sleep that CPU.
looks like the PCB is glued to the battery holder. Maybe re-mount it on a AAA battery holder and see how long that would go with a sleepy program.
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GTBecker
Joined: 18 Jan 2006
Posts: 472
Location: Cape Coral
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Posted: 19 February 2007, 23:50 PM Post subject: |
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The ZX-24a Hobbs code ran for 3.72 hours on a fresh AA alkaline. The other supply produced 100mA for 45 minutes before dropping out. The battery and switcher remain cool until dropout, then the battery gets warm but not hot.
On a fresh battery, the supply shows 10mV droop at 120mA and it gets pretty steep above that. Both supplies yielded 4.97v while in regulation.
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stevech
Joined: 23 Feb 2006
Posts: 688
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Posted: 20 February 2007, 5:48 AM Post subject: |
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| thanks. Results look pretty good
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