About 2 years ago there was a thread
discussing Evnetics possibly developing a DC-DC converter. The project was shelved mostly because I couldn't get the manufactured cost below $200, and then the locomotive drive system project came along and derailed (ahem) all other projects.
Well, we finally shipped off the prototype locomotive drive system to the customer so I've revisited this gaping hole in the market, except with the intent of making the DC-DC myself, because, again, it still wouldn't be possible for Evnetics to make it profitably - not alongside the DIY EV and locomotive drives, anyway.
And as explained in that thread from 2 years ago, I have already worked out most of the details for a 14V/50A DC-DC converter that can run on a very wide input voltage range of 100-400V.
So given that Evnetics can't make this product profitably, I've been contemplating funding the development and/or production of it via a Kickstarter campaign. This thread, then, is to discuss the technical details of the converter as well as the prospective Kickstarter campaign. For example, it seems to me that most of the products which have been successfully funded on Kickstarter were open source. I don't have a problem making this open source, but I'd rather not offer a kit for people to build this themselves because, a) it will be mostly surface mount and, b) I don't want to deal with the people who really shouldn't be building something like this buying the kit and attempting to build it anyway just to save $100-$200. And besides, I know from experience that it takes just as long to pack a kit as it does to simply populate the board with the parts.
However, that does leave a pretty big spread between the obligatory altruistic $10 pledge to give your support with nothing much to show for it, and the (estimated) $350 pledge for the assembled and tested product. Any ideas for intermediate rewards would be welcome, as this is where my imagination tends to fail me.
Finally, I used to run a small electronics design & manufacturing business, so I know from both that experience and from Evnetics that a lot more people will say they want your proposed gadget than will actually buy it. Funding the development - or the production of the first batch, at least - via Kickstarter would spread out the entrepreneurial risk rather than me shoulder it all by myself. Also, if this experience with Kickstarter turns out well then I (or Evnetics) will be much more inclined to use it to fund even more ambitious products like, say, an AC inverter or a drive for switched reluctance motors. Baby steps first, though.