Path: csiph.com!1.us.feeder.erje.net!feeder.erje.net!2.us.feeder.erje.net!weretis.net!feeder6.news.weretis.net!news.glorb.com!peer03.iad!feed-me.highwinds-media.com!news.highwinds-media.com!spln!extra.newsguy.com!newsp.newsguy.com!drn From: Winfield Hill Newsgroups: sci.electronics.design Subject: Re: Achieving 98% efficiency in a boost converter, inducement Date: 16 Mar 2017 10:42:09 -0700 Organization: Rowland Institute Lines: 19 Message-ID: References: <275abfbe-5306-41d3-a184-8b0372ca77d7@googlegroups.com> NNTP-Posting-Host: p19c1f2ce76678eca36f21445f1784fa6cdc645be2e082638.newsdawg.com User-Agent: Direct Read News 5.60 X-Received-Bytes: 1303 X-Received-Body-CRC: 1598001904 Xref: csiph.com sci.electronics.design:452149 Joerg wrote... > > If the MPPT is a required part of the game > you'd have to add in the Arduino power > consumption. Maybe use a MSP430 instead? > Those can be operated on small drops of power. Of course. But my rule is that none of the controller power consumption counts. Why? We assume with effort you could drive that as far down as you want, but that's not the point. The point is to achieve very efficient power conversion, period. Any wild control scheme you dream up is OK. -- Thanks, - Win