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Re: Achieving 98% efficiency in a boost converter, inducement

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dagmargoodboat@yahoo.com wrote...
>
>On Wednesday, November 9, 2016 at 6:54:04 PM UTC-5, Winfield Hill wrote:
>> Anybody care to speculate about the most important aspects to consider when
>> trying to achieve 98% efficiency in a low-power (20mW) boost converter?  Most
>> available step-up converter circuits seem to perform in the 85 to 90% region.
>> 
>> I'm finishing a PCB "test bed" layout, which allows jumper-selection of
>>different inductors, synchronous switches, and adjustable controller parameters.
>> I'm hoping not to forget something important before sending it off to the PCB
>> house.  Just for fun I thought I'd make it in the form of an Arduino shield;
>> giving an option for the processor to control the parameters and take
>> measurements.
>
> Too many degrees of freedom to answer you Win [ snip ]

 Thanks, your comments are right on target and can kick
 off the discussion I was hoping to see.  I'll get into
 that conversation tomorrow.  But in the meantime I've
 updated my draft schematic and PCB layout, adding more
 features and items relevant to the discussion.
 https://www.dropbox.com/sh/aj1tlto0fa6w6ty/AADJ9BWmCQE_ed7NHp60PgMja?dl=0

 Here's an inducement: anyone who'd like to experiment
 with issues and concepts embedded in the RIS-767
 board, I'll send you two blank PCBs to play with.
 You just have to talk about what you learn, should
 you get around to learning anything!


-- 
 Thanks,
    - Win

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Thread

Achieving 98% efficiency in a boost converter Winfield Hill <hill@rowland.harvard.edu> - 2016-11-09 11:00 -0800
  Re: Achieving 98% efficiency in a boost converter sea moss <danluster81@gmail.com> - 2016-11-09 20:12 -0800
  Re: Achieving 98% efficiency in a boost converter "Tim Williams" <tiwill@seventransistorlabs.com> - 2016-11-09 22:27 -0600
    Re: Achieving 98% efficiency in a boost converter bill.sloman@ieee.org - 2016-11-10 04:07 -0800
  Re: Achieving 98% efficiency in a boost converter Winfield Hill <hill@rowland.harvard.edu> - 2016-11-11 02:08 -0800
  Re: Achieving 98% efficiency in a boost converter dagmargoodboat@yahoo.com - 2016-11-11 13:44 -0800
    Re: Achieving 98% efficiency in a boost converter, inducement Winfield Hill <hill@rowland.harvard.edu> - 2016-11-11 19:05 -0800
      Re: Achieving 98% efficiency in a boost converter, datasheets Winfield Hill <hill@rowland.harvard.edu> - 2016-11-12 04:06 -0800
        Re: Achieving 98% efficiency in a boost converter, datasheets dagmargoodboat@yahoo.com - 2016-11-12 05:40 -0800
          Re: Achieving 98% efficiency in a boost converter, datasheets dagmargoodboat@yahoo.com - 2016-11-12 05:54 -0800
          Re: Achieving 98% efficiency in a boost converter, datasheets Winfield Hill <hill@rowland.harvard.edu> - 2016-11-12 06:33 -0800
            Re: Achieving 98% efficiency in a boost converter, datasheets Jim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> - 2016-11-12 07:58 -0700
              Re: Achieving 98% efficiency in a boost converter, datasheets Winfield Hill <hill@rowland.harvard.edu> - 2016-11-15 05:29 -0800
            Re: Achieving 98% efficiency in a boost converter, datasheets bill.sloman@ieee.org - 2016-11-12 20:08 -0800
              Re: Achieving 98% efficiency in a boost converter, datasheets Winfield Hill <hill@rowland.harvard.edu> - 2016-11-13 18:29 -0800
          Re: Achieving 98% efficiency in a boost converter, datasheets Clifford Heath <no.spam@please.net> - 2016-11-13 09:08 +1100
            Re: Achieving 98% efficiency in a boost converter, datasheets dagmargoodboat@yahoo.com - 2016-11-12 16:48 -0800
              Re: Achieving 98% efficiency in a boost converter, datasheets Winfield Hill <hill@rowland.harvard.edu> - 2016-11-16 18:00 -0800
                Re: Achieving 98% efficiency in a boost converter, datasheets bill.sloman@ieee.org - 2016-11-17 18:41 -0800
                Re: Achieving 98% efficiency in a boost converter, datasheets dagmargoodboat@yahoo.com - 2016-11-18 09:37 -0800
        Re: Achieving 98% efficiency in a boost converter, datasheets Winfield Hill <hill@rowland.harvard.edu> - 2016-11-15 05:05 -0800
          Re: Achieving 98% efficiency in a boost converter, datasheets Winfield Hill <hill@rowland.harvard.edu> - 2016-11-18 09:13 -0800

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