Iotas are available on Ebay all the time. Do a search on closed auctions to
see what they have been selling for.
On 10/10/07, Paul <
[email protected]> wrote:
>
> You have one of the best low cost DC to DC converters for a 120 volt
> pack. Most DC to DC converters (that are cheap) are actually AC to DC
> converters that happen to work on DC. Many of those start showing
> reduced output or reliability issues under 120 volts DC (the peak
> voltage for 120 VAC is about 168 volts.) The older Todd "LV" line of
> converters was designed to be safe all the way down to 95 VDC. The
> downside is that they don't protect themselves from under-voltage;
> they can and DO fail from excessively low input voltage.
>
> The Todd units, and most other AC to DC RV converters that work with
> DC input, need to be located in a dry location. You could craft a box
> to fit under the bed where the fuel tank used to be.
>
> The Todd and other RV converters are generally safe up to 200 volts
> (they generally use 200 volt parts on the input side.) Iota quotes up
> to 190 volts but I would guess they are covering their backside.
>
> Here is a bit of e-mail from Iota, send to solarseller and posted on
> their site at <http://www.solarseller.com/
> _iota_battery_chargers___battery_tender_battery_chargers__instock_and_re
> ady_to_s.htm>:
>
> > From: Jeff Young [snip]
> > Sent: Wednesday, January 17, 2007 2:26 PM
> > To: Mariette Francis
> > Subject: Re: question [DC operation of DLS units]
> >
> > The DLS-45 and DLS-55 will not produce full output power with less
> > than 130Vdc on the input and will be limited to an output voltage
> > of 13.6Vdc; an increase of the input voltage (to 136Vdc) would be
> > required to attain full output power with the DV (dual voltage)
> > jack installed.
> > The DLS-45 and DLS-55 will operate at less than 130Vdc, but at a
> > limited capability. At 96Vdc, the output will remain in regulation
> > up to ~=BD Adc. Above ~=BD Adc load, the output voltage will decrease
> > linearly until the load current reaches ~1Adc (Vout =3D ~10Vdc).
> > Above 1Adc, the output should maintain an output voltage of 9 -10Vdc.
> > The DLS-30 (Series M) also has limited operation at lower input
> > voltages. At 96Vdc, the Series M can sustain normal float voltages
> > out to ~20Adc.
> > Above 20Adc, the output voltage decreases linearly to ~10Vdc at 30A
> > output.
> > Jeff Young - Power Products Engineer
>
> I don't know if the Iota units are quieter but it looks like the only
> one suitable for a 120 volt EV would be the DLS-30 (series M.) The
> one you have will put out 25 amps from about 90 volts up (shouldn't
> be forced to do it below 95 volts for any length of time.) The Iota
> incorporates low input voltage protection (according to Iota, I
> haven't tested this) and gives 5 more amps sometimes and 5 less amps
> other times. (I'm going to guess it would come out ahead overall)
>
> Paul Gooch
>
>
>
Michael Mohlere wrote:
>
> > Can anyone provide a source or sources for dc-dc converters
> > web site or sites would be great
>
>
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Storm
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