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| Ev Archive for July 1999 |
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| 1318 messages, last added Wed Aug 08 18:45:48 2001 |
[Date Index][Thread Index]
Re: voltmeter gauges?
From: XURQ03A@prodigy.com ( LEE A HART)
> If you use an LED bargraph with 10 bars from 10-15v, you can only
> resolve 0.5v per step. One LED step is a difference of 50% in state of
> charge. That's pretty grainy resolution.
Even with that resolution, it's easy to spot a lazy module in the pack --
it'll be enough lower to show up quickly. Ironically, if the resolution
were finer, it might not be so obvious. But making the scale read, say,
10 to 13 volts might be a good compromise.
David Roden - Akron, Ohio, USA
1991 Solectria Force 144vac
1979 General Engines ElectroPed 24vdc
1974 Honda Civic 96vdc
1970 GE Elec-trak 36 vdc
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