Design challenge - switching regulator - update
Russell McMahon email (remove spam text)
>you can't do anything cunning like changing the configuration of the
windings on your generator can
No. 'fraid not.
For other reasons the alternator configuration is scrosanct. It has been
arrived at after quite some sweat and blood (mainly by others than me) and I
have to live with its constraints.
>[ot][... on that second link they talk about IGBTs too. Long time since I
have heard much about
>them. no one on this list ever
>seems to talk about them or suggest them... seemed to me that they were
pretty cool devices from
>what i can remember, but i don't deal with 'power' stuff
>nowdays. any of you have any experience with these things ? are they fun ?
are they handy ?]
Depends greatly on your application.
IGBT's have an increasing place in power electronics as they get faster and
generally more capable.
An IGBT is essentially a FET front end on a bipolar transistor. While a FET
has a constant on resistance an IGBT has a constantish voltage drop.
At lower currents and voltages FETs generally end up with a better voltage
For voltages over a few hundred volts and not-too-fast switching (tens of
kiloHertz) IGBTs are pretty convincing.
My client has a DC motor PWM controlled treadmill operated offline at about
2 kW and this operates with a single IGBT power switch.
http://www.piclist.com hint: The list server can filter out subtopics
(like ads or off topics) for you. See http://www.piclist.com/#topics
See also: www.piclist.com/techref/power/priswitch.htm?key=switching
You must be a member of the
piclist mailing list
(not only a www.piclist.com member) to post to the