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- Newsgroups: sci.electronics
- Path: sparky!uunet!caen!uwm.edu!moci!kai
- From: kai@moci.uucp (Kai Bidstrup)
- Subject: Re: What is an IGBT?
- Organization: ICOM, Inc., West Allis, WI
- Distribution: usa,sci
- Date: Wed, 22 Jul 92 23:08:12 GMT
- Message-ID: <1992Jul22.230812.8927@moci.uucp>
- References: <1992Jul14.094518.13698@vax5.cit.cornell.edu> <MOTOYAMA.92Jul20140840@harlgw92.harl.hitachi> <1992Jul20.101533.13846@vax5.cit.cornell.edu>
- Lines: 37
-
- In article <1992Jul20.101533.13846@vax5.cit.cornell.edu> cpyy@vax5.cit.cornell.edu writes:
- >> Can IGBT's amplify audio signal well? Can they be used for Hi-Fi
- >> audio power amplifiers?
- >>
- >> Hiroshi
- >> --
- >> $BK\;3Gn;J(J $BF|N)4pAC8&(J motoyma@harl.hitachi.co.jp
- >>
- >What are all these (VT100?) control characters supposed to do? My machine
- >doesn't receive them, but I'd like to know the effect.
- >
- >Where there's gain, there's potential audio amplification. I've never
- >used them in a linear amplifier, but I've made a few switch-mode
- >jobbies with them. The work quite nicely. I was just doing single
- >harmonic (at about 1kHz) amplification with them, but you can do
- >much better with switch mode. It's also incredibly efficient. You
- >can make a nice switch mode audio amp in a very small volume. I've
- >gotten a few kilowatts in about 10 cc's of power drive space (including
- >heat sinking). Don't let this out! I don't want the stereo companies
- >to start making amplifiers this way for a while. (-:
- >
- >--
- >
- >Jon C. Russo
- >internet : cpyy@vax5.cit.cornell.edu
- >phone : 607.277.3295
-
- I don't know if any new power density records were broke (I think not),
- but, Forte, a division of Threshold, has two class A ( 50W Stereo,
- 75W Mono ) and two class AB ( 150W Stereo & 200W Stereo ) that use
- IGBT in the output stage. Their glossy pamphlet even has 'IGBT'
- plastered on the front.
-
- Kai Bidstrup
- ICOM Inc.
- uwm!uwm.edu!moci!kai
-
-