18 Jan
2010
18 Jan
'10
1:21 p.m.
On 18 Jan 2010 at 21:04, Jochen Kunz wrote:
:-)
On Sun, 17 Jan 2010 19:42:48 +0000 (GMT)
ard at p850ug1.demon.co.uk (Tony Duell) wrote:
Both "thyristor" and "SCR" are used in the U.S., but "SCR"
is easier [1] We (UK) often call that component a
'thyristor' by analogy with
'thyratron'
[...]
Is that name recognised elsewhere?
It is
called 'thyristor' in Germany too. to spell. "Thyristor" is more of a generic
term that can include
TRIACs, DIACs, SIDACs, LASCRs, and all manner of other 4-layer
devices.
Right. Over here, AFAIK, a 'thyristor' was a 4-layer, 3 lead,
unidirectional device, I've neer head it being used for any of the other
devices. The name, I beliece, is derrived from the (ancient?) Greek
'Thura' meaning a door.
I grew up calling them thyristors, but now normally call them SCRs since
it causes less confusion. Similarly I learnt the German symbols for logic
gates (the AND gate looks like what you'd expect, the OR gate looks like
an AND gate -- it has a straight back -- but the input lines are
continuted across the symbol to the curved face), but now use the normal
US sysmbols when I'm drawing schematis, since everybody else does. I can
still read a scehamtic using the German symbols, of course (nad often
have to ;-)).
I also learnt the zig-zag lien for a resistor, and nothing is going to
get me to change that to the narrow rectangle used in the rest of Europe.
Again I have no problem reading schemaitcs drawn with either symbol.
-tony