定電流回路

今回は回路図の紹介だけであるが、シリーズ及びスイッチング電源での定電流回路である。基本的には、ハイサイドまたはローサイドの電流検出抵抗の電圧をオペアンプで増幅してフィードバックさせる。 Analog Devicesに買収されたLinear Technologyのアプリケーションノート集であるANALOG Circuit Designには、この他にも参考になる回路がたくさん掲載されている。

 <metaperl_work>  thank you
 <metaperl_work>  nothingmuch, i want to chat with you on kiokudb
       <rindolf>  Hi metaperl_work
      <confound>  you should chat with him on #kiokudb then
           <mst>  metaperl_work: you mean "about kiokudb"
 <metaperl_work>  rindolf, hi! long time no see
       <rindolf>  metaperl_work: yes.
 <metaperl_work>  we are talking in #kiokudb confound
       <rindolf>  metaperl_work: what have you been up to?
      <confound>  no, this is #moose!
 <metaperl_work>  confound, "we" = me and yuval
 <metaperl_work>  rindolf, well.... keeping Seamstress up to date
       <rindolf>  metaperl_work: yuval and I.
       <jhannah>  In related news: i'm chatting on my mobile phone
 <metaperl_work>  Moose is saving my life... SUPER handy
 <metaperl_work>  jhannah, what type of mobile phone?
       <rindolf>  metaperl_work: what is Seamstress?
          <purl>  Seamstress is really nothing anyway
      <confound>  it's on cpan
       <jhannah>  metaperl_work: please take that question to
                  #jhannah_phones
           <mst>  jhannah++
        <stevan>  jhannah: which network, there doesnt seem to be anyone
                  there
   <nothingmuch>  i think buffy might be a closet lesbian
               *  stevan HAS TO KNOW!!!!
        <stevan>  nothingmuch: duh
   <nothingmuch>  stevan: i think you kinda missed the joke =P
        <stevan>  take that to #closet-lesbian-vampire-slayers
       <jhannah>  i get jokes
       <rindolf>  stevan: LOL. stevan++
         <dhoss>  jhannah++
       <jhannah>  stevan: i have hundreds of invisible groupies in dozens
                  of #jhannah_* channels. they are well trained to be
                  quiet when interlopers lope in

    -- Take that to a different channel
    -- #moose, MAGNet

Now in terms of the anthropology we try to welcome people into the tribe. We
allow people to have their own little fiefdoms, where they are the ruler and
can beat up on their followers.

We try to let people share with each other. We try to capture knowledge. Both
of those things are why we have the CPAN, Comprehensive Perl Archive Network,
which is arguably one of the greatest repositories of reusable crappy software
in the world. (laughter).

And we have a culture of cooperating with other cultures too. We try to make
Parrot so that other languages can ran on top of that. We've always tried to
hook up Perl with everything. In kind of a humble sort of way. And finally
it's culture of fun. At least we try to make it that way. And that's why I
give weird talks.

    -- Larry Wall
    -- Present Continuous, Future Perfect ( http://www.perl.org.il/presentations/larry-wall-present-continuous-future-perfect/transcript.html )

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