Newtonez

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Inventor

Analog Circuit Design since 1957. Inventor in 27 issued U.S. Patents. Invented, and filed Provisional Patent Application on: DC Transformer, July 2016


Newtonez

's contributions
  • 03.10.2017
  • DC Transformer? Forward converter? Isolation amp? You decide!
  • Michael, Yes, Vicor is the competition, so far as data centers are concerned. The Vicor systems are much more complicated in concept. One of their patents runs to nearly 100 pages. They are only able to reach a reasonable reflection delay by running the clock at many MegHz. One of the keys to the superiority of the DC Transformer, in this service, is that reflection delay is independent of reversal rate, so that core and copper losses are more moderate. The Vicor approach is old, and was developed at least a decade ago. The DC Transformer is an undeveloped Design Idea.
  • 03.10.2017
  • DC Transformer? Forward converter? Isolation amp? You decide!
  • Oliver, You are very perceptive. Of course you are right about the inevitable coincidence. Your solution is the same as mine, but I call it parallel filtering. Because two channels can have identical turns ratios, they can be run in parallel, as AC Transformers frequently are. If the reversing signals of paralleled channels are in quadrature, then each will carry the other, over the break-before-make time of form-C switches.
  • 03.10.2017
  • DC Transformer? Forward converter? Isolation amp? You decide!
  • The complete summary of the DC Transformer invention is at the link: https://1drv.ms/b/s!ApYl96h2rQbBgatEOjE30-RgVWOXgw I think that the red and green diagram, showing that 99+% of the time, the ports are switch-connected to an actual transformer, with all of it's reflection [also called referral] characteristics, is more important than the schematic of the first model. No forward converter, nor any other Pulse Width Modulation [PWM] topology, exhibits this near-instantaneous continuous, reversible link, between ports.