Path: csiph.com!feeder.erje.net!2.eu.feeder.erje.net!eternal-september.org!feeder.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: Don Kuenz Newsgroups: sci.electronics.design Subject: Re: Achieving 98% efficiency in a boost converter, RIS-767 Date: Sat, 6 May 2017 05:31:47 -0000 (UTC) Organization: A noiseless patient Spider Lines: 29 Distribution: world Message-ID: <201700505c@crcomp.net> References: <1q4techma038slpkhv5p4jvgd0m2l04h5j@4ax.com> Injection-Date: Sat, 6 May 2017 05:31:47 -0000 (UTC) Injection-Info: mx02.eternal-september.org; posting-host="7b8d7352583f4202cd22c980d1d90c78"; logging-data="25537"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX19LZLl3tGBhayA5qacoE3c5" Cancel-Lock: sha1:WaBlr+2qa1aygr3fav5WJhsWwMg= Xref: csiph.com sci.electronics.design:459044 Winfield Hill wrote: > Winfield Hill wrote... >> >> The boards have arrived. I sent Rob Legg his set, next >> I'll send Don Kuenz his pair, and check my email for >> sea moss' mailing address. I'm not sure, but I think >> James Arthur is out, too busy. Did anyone I missed >> opt for one? Any other new customers? > > OK, Don, your set of boards is on the way. I chopped > up one set of 20 flip-chip daughterboards, you can use > your fancy saw for the other set. > >> The RIS-767 files have been updated: Now there's more >> discussion, top and bottom pcb-traces, 2-side assembly >> drawings, plus the orginal four example versions. The >> DropBox folder now includes Altium CAD files + Gerber. >> https://www.dropbox.com/sh/6dnpm6muic6st2c/AACSpd3gJEjWT1SYyxS_wutga?dl=0 > > I've added searchable parts-location assembly drawings. My metal circular saw blade works great with sheet metal. FR4 may require an abrasive blade to keep the FR4 from splintering. :0) Thank you, -- Don Kuenz KB7RPU