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Re: Achieving 98% efficiency in a boost converter

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  Re: Achieving 98% efficiency in a boost converter bloggs.fredbloggs.fred@gmail.com - 2017-03-16 08:33 -0700
    Re: Achieving 98% efficiency in a boost converter Winfield Hill <hill@rowland.harvard.edu> - 2017-03-16 08:51 -0700

#452118 — Re: Achieving 98% efficiency in a boost converter

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.
> 
> 
> -- 
>  Thanks,
>     - Win

Model and calculations need to be more thorough. This write-up seems to be a comprehensive analysis. I didn't read the whole thing:
http://powerelectronics.com/site-files/powerelectronics.com/files/archive/powerelectronics.com/power_management/809PET-boost-converter-efficiency-calculations.pdf

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#452122

bloggs.fredbloggs.fred@gmail.com wrote...
> Model and calculations need to be more thorough.
> This write-up seems to be a comprehensive analysis.
> I didn't read the whole thing:
>http://powerelectronics.com/site-files/powerelectronics.com/files/archive/powerelectronics.com/power_management/809PET-boost-converter-efficiency-calculations.pdf

 Thanks, I hadn't seen that writeup, looks interesting.
 You're right, I haven't given details of my 98% calcs
 in my documents, because I'm concentrating on the PCB.


-- 
 Thanks,
    - Win

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