インバータ式蛍光灯の回路は何種類かあるが、今回取り上げるのはNE555等のICを使用しないタイプである。 同じタイプの回路を使用したODS-27S(回路)は 発火の恐れで 回収になったらしい。 発信周波数が回路素子に依存するタイプの共振回路は、経年劣化によって発振しなくなったり、印加電圧がうまくコントロールされなかったりして、安定した品質を維持するのは難しいと思われる。
1N4007による倍電圧整流回路の電源と共振回路によるスイッチングで、安定器の定数やトランスの定数が不明なので詳細は分からないが、 だいたい50kHzくらいで発振すると思われる。
<rindolf> perlmonkey2: I've ran into a strange problem with CMake.
It's some kind of bug that disappears after running a few
commands.
<perlmonkey2> rindolf: heh, the best kind of bugs are intermittant and
only happen under load :P
<rindolf> perlmonkey2: it's not load.
<daemon> The best kind of bugs are the ones that do not happen at
all :)
<rindolf> daemon: heh.
<rindolf> daemon++
<Altreus> The best kind of bugs are the ones that only happen to
people you hate.
<perlmonkey2> hahahaha
<Altreus> Those aren't usually bugs
<Altreus> >:)
<daemon> Altreus, you mean the ones you coded to happen to that
said person ;)
<daemon> hehe
<Altreus> Not being able to reproduce strange behaviour is fine too
-- Best kind of bugs
-- #perl, Freenode
Linus isn't saying that CVS and Subversion have fixable bugs or missing
features. It's not about the code.
He is saying that they solve the wrong problem. The Subversion team wants to
solve Problem A, and Linus wants to solve Problem B. No amount of code will
turn the solution to Problem A into a solution for Problem B. Bothering the
Subversion team with code addressing Problem B will only irritate them, since
they're working on Problem A.
The right way to handle differing goals is to start a different project.
That's what he did.
Don't be confused by the labels. Source Code Management means different things
to different people, and there isn't always much overlap in how each person
defines it. Ships and airplanes are both 'vehicles', but that doesn't mean
that a few changes will turn one to the other.
zzatz on:
http://developers.slashdot.org/comments.pl?sid=237163&cid=19367821
-- zzatz
-- Slashdot Comment ( http://developers.slashdot.org/comments.pl?sid=237163&cid=19367821 )