$8,567
pledged of $14,000pledged of $14,000 goal
207
backers
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Funding Unsuccessful
The project's funding goal was not reached on Mon, June 25 2012 1:10 AM UTC +00:00
$8,567
pledged of $14,000pledged of $14,000 goal
207
backers
0seconds to go
Funding Unsuccessful
The project's funding goal was not reached on Mon, June 25 2012 1:10 AM UTC +00:00

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    1. ETONNET LLC 2-time creator on

      Yes, self-powered variable power supply is a good idea. We have thought about that. Using li-ion battery and one voltage boost chip, we can reach this requirement.
      Regarding the high voltage output, yes, we will include this feature in our next version. Actually, we do have one prototype. The output voltage supports up to 25V.

      Mike and Brad

    2. James Bailey
      Superbacker
      on

      Haha, thanks for your feedback feedback, I love the interactive nature of kickstarter! Well if you're after extra points, what if you made another reward that was a barebones battery box for an AA + booster circuit that could plug into the USB and make it completely self sufficient while mechanically engaging with your box? Double points for using a LiIon battery that recharges off the USB with some kind of low-batt warning! ;)

    3. Benjamin Vernoux on

      A really good feature will be current limiting feature and voltage up to 9V, but anyway the hardware is already very good like that.

      Best Regards
      Benjamin

    4. David Johnston on

      I used to spend a lot of time in the lab when I was a board design engineer. Now I'm a cryptographic chip design engineer, so I only occasionally go into a lab to try on my designs when the silicon comes back. One of the problems I always encounter is getting hold of useful power supplies. (1) They tend to 'walk away' if left unattended. (2) Modern silicon runs on low voltages (E.G. 0.6 - 1.3v ) and the PSU control ranges tend to very coarse relative to that range.
      The idea of having my own USB powered/controlled, voltage and current limit controllable PSU that I can take with me in my laptop back would is very exciting because it would solve all my PSU problems. I don't personally have a need for higher current or voltages, but other people might. I'd pay more for a device with independent current control since it takes an extra knob and display. Being able to control it through USB and script a bringup sequence that ramps the current until the right voltage is reached (or abort if it takes too much) would be awesome since it would be more accurate that turning the knob with my fingers.

    5. ETONNET LLC 2-time creator on

      Hi James and David!

      We have discussed your suggestions and have to agree. As this is the first iteration we clearly have room to improve. At the same time, portability and cost effectiveness are key ingredients. We have started working out how to incorporate current control without adding significant costs to the build. We have also been looking at alternative housings in order to increase the portability. So James, we're going after those extra points you mentioned.

      Thanks for the feedback,

      Brad and Mike

    6. David Johnston on

      I agree with the other guy. Think about independent control and display of current and voltage. This is what distinguishes a useful lab bench power supply from a useless lab bench power supply.

    7. James Bailey
      Superbacker
      on

      Looks great guys! Killer features I'd like:
      - As thin as possible (pocketable)?
      - If not thin, tiny alligator clips and leads stored within device?
      - Press a button to change to Current Control (extra points for independent selection of current and voltage display and current and voltage control)

      But if it was just as it is, you have my money! ;)