Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > sci.electronics.design > #451047
| From | Don Kuenz <g@crcomp.net> |
|---|---|
| Newsgroups | sci.electronics.design |
| Subject | Re: Achieving 98% efficiency in a boost converter, inducement |
| Date | 2017-03-09 21:30 +0000 |
| Organization | A noiseless patient Spider |
| Message-ID | <20170309c@crcomp.net> (permalink) |
| References | <nvvrni02lg2@drn.newsguy.com> <275abfbe-5306-41d3-a184-8b0372ca77d7@googlegroups.com> <o060su0265c@drn.newsguy.com> <o9rrt10mar@drn.newsguy.com> <o9rvtv0ubq@drn.newsguy.com> |
Winfield Hill <hill@rowland.harvard.edu> wrote: > Winfield Hill wrote... >> >> The design has been updated and is ready to order. >>https://www.dropbox.com/s/hhl1mwq7mjeo622/RIS-767_b_sch%2Blayouy-pics.pdf?dl=0 >> >> Here's what my document says, achieving a 98% result: >> One test condition: 600mV input from a solar cell, >> 2.4V out at 10mA load = 24mW. Boost converter >> operation at 250kHz. Critical for success: an RM8 >> inductor, low-loss winding, measured DCR 0.018 Ω, >> calculated loss 0.03mW, and AC loss 1.3 Ω, 0.06mW. >> Best estimated CMOS switch, TS3A24159 powered from >> Vcc = 3.3V. Ron 0.10 Ω, loss 0.16mW. Calculated >> switch loss, switching 2.4V with Coss=150pF, 0.21mW. >> >> Continuous total loss 0.46mW = 2% of 24mW (not >> counting 0.18mW in sense resistors). >> >> I had only one email about a free PCB, but with no >> followup to my answer. My offer still stands. > > My RIS-767 testbed is not meant to be a full-blown > boost converter, instead it's meant to evaluate > inductors and synchronous switches, under various > conditions, by independently setting the switching > frequency, the PWM duty cycle, and the load current. > Fix two parameters and step a third, plot data points. The enigma of the long delay to receive your pcb is cleared up at last. By process of elimination the one email that you received belongs to me. Another email was just sent to you with my address in it. Thank you, -- Don Kuenz KB7RPU
Back to sci.electronics.design | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
Re: Achieving 98% efficiency in a boost converter, inducement Winfield Hill <hill@rowland.harvard.edu> - 2017-03-09 07:21 -0800
Re: Achieving 98% efficiency in a boost converter, inducement Winfield Hill <hill@rowland.harvard.edu> - 2017-03-09 08:29 -0800
Re: Achieving 98% efficiency in a boost converter, inducement Don Kuenz <g@crcomp.net> - 2017-03-09 21:30 +0000
Re: Achieving 98% efficiency in a boost converter, inducement Winfield Hill <hill@rowland.harvard.edu> - 2017-03-09 13:59 -0800
Re: Achieving 98% efficiency in a boost converter, inducement Winfield Hill <hill@rowland.harvard.edu> - 2017-03-10 05:30 -0800
Re: Achieving 98% efficiency in a boost converter, deadline Winfield Hill <hill@rowland.harvard.edu> - 2017-03-10 05:34 -0800
Re: Achieving 98% efficiency in a boost converter, deadline sea moss <danluster81@gmail.com> - 2017-03-10 21:10 -0800
Re: Achieving 98% efficiency in a boost converter, deadline Winfield Hill <hill@rowland.harvard.edu> - 2017-03-11 05:40 -0800
Re: Achieving 98% efficiency in a boost converter, RIS-767, new 11-page document Winfield Hill <hill@rowland.harvard.edu> - 2017-03-16 07:55 -0700
Re: Achieving 98% efficiency in a boost converter, inducement Joerg <news@analogconsultants.com> - 2017-03-16 08:08 -0700
Re: Achieving 98% efficiency in a boost converter, inducement Winfield Hill <hill@rowland.harvard.edu> - 2017-03-16 08:54 -0700
Re: Achieving 98% efficiency in a boost converter, inducement Joerg <news@analogconsultants.com> - 2017-03-16 09:36 -0700
Re: Achieving 98% efficiency in a boost converter, inducement Winfield Hill <hill@rowland.harvard.edu> - 2017-03-16 10:42 -0700
Re: Achieving 98% efficiency in a boost converter, inducement legg <legg@nospam.magma.ca> - 2017-03-19 17:58 -0400
Re: Achieving 98% efficiency in a boost converter, RIS-767 Winfield Hill <hill@rowland.harvard.edu> - 2017-03-19 15:38 -0700
Re: Achieving 98% efficiency in a boost converter, RIS-767 legg <legg@nospam.magma.ca> - 2017-03-22 21:49 -0400
Re: Achieving 98% efficiency in a boost converter, RIS-767 legg <legg@nospam.magma.ca> - 2017-04-12 11:52 -0400
Re: Achieving 98% efficiency in a boost converter, RIS-767 Winfield Hill <hill@rowland.harvard.edu> - 2017-04-12 10:12 -0700
Re: Achieving 98% efficiency in a boost converter, RIS-767 Joerg <news@analogconsultants.com> - 2017-04-12 10:26 -0700
Re: Achieving 98% efficiency in a boost converter, RIS-767 legg <legg@nospam.magma.ca> - 2017-04-12 17:24 -0400
Re: Achieving 98% efficiency in a boost converter, RIS-767 Joerg <news@analogconsultants.com> - 2017-04-13 07:13 -0700
Re: Achieving 98% efficiency in a boost converter, RIS-767 Winfield Hill <hill@rowland.harvard.edu> - 2017-04-12 10:29 -0700
Re: Achieving 98% efficiency in a boost converter, RIS-767 legg <legg@nospam.magma.ca> - 2017-04-12 17:07 -0400
Re: Achieving 98% efficiency in a boost converter, RIS-767 Winfield Hill <hill@rowland.harvard.edu> - 2017-04-13 08:22 -0700
Re: Achieving 98% efficiency in a boost converter, RIS-767 legg <legg@nospam.magma.ca> - 2017-04-22 16:58 -0400
Re: Achieving 98% efficiency in a boost converter, RIS-767 Winfield Hill <hill@rowland.harvard.edu> - 2017-05-01 15:08 -0700
Re: Achieving 98% efficiency in a boost converter, RIS-767 Winfield Hill <hill@rowland.harvard.edu> - 2017-05-05 13:27 -0700
Re: Achieving 98% efficiency in a boost converter, RIS-767 Don Kuenz <g@crcomp.net> - 2017-05-06 05:31 +0000
Re: Achieving 98% efficiency in a boost converter, RIS-767 dagmargoodboat@yahoo.com - 2017-05-07 14:49 -0700
Re: Achieving 98% efficiency in a boost converter, RIS-767 Winfield Hill <hill@rowland.harvard.edu> - 2017-05-08 12:05 -0700
Re: Achieving 98% efficiency in a boost converter, RIS-767 sea moss <danluster81@gmail.com> - 2017-05-08 18:50 -0700
Re: Achieving 98% efficiency in a boost converter, RIS-767 Winfield Hill <hill@rowland.harvard.edu> - 2017-05-08 19:27 -0700
Re: Achieving 98% efficiency in a boost converter, inducement George Herold <gherold@teachspin.com> - 2017-03-22 19:38 -0700
csiph-web