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。

bzr is slower than Subversion in combination with Sourceforge.

[Dazjorz](http://dazjorz.com/) (17-September-2009)

    -- Dazjorz
    -- Chat with Shlomi Fish

Hacking predates computers. When he was working on the Manhattan Project,
Richard Feynman used to amuse himself by breaking into safes containing secret
documents. This tradition continues today. When we were in grad school, a
hacker friend of mine who spent too much time around MIT had his own lock
picking kit. (He now runs a hedge fund, a not unrelated enterprise.)

It is sometimes hard to explain to authorities why one would want to do such
things. Another friend of mine once got in trouble with the government for
breaking into computers. This had only recently been declared a crime, and the
FBI found that their usual investigative technique didn't work. Police
investigation apparently begins with a motive. The usual motives are few:
drugs, money, sex, revenge. Intellectual curiosity was not one of the motives
on the FBI's list. Indeed, the whole concept seemed foreign to them.

    -- Paul Graham
    -- The Word "Hacker" ( http://www.paulgraham.com/gba.html )

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