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- From: aslt@acad2.alaska.edu
- Subject: AC power inverter questions?
- Message-ID: <1992Sep14.210900.1@acad2.alaska.edu>
- Lines: 21
- Sender: news@raven.alaska.edu (USENET News System)
- Nntp-Posting-Host: acad2.alaska.edu
- Organization: University of Alaska
- Date: Tue, 15 Sep 1992 01:09:00 GMT
-
- This is probably a stupid... *ahem*, well, a question that reveals how just how
- much I have forgotten, but it is one that I have thought about frequently
- over the years, and the discussions about power supplies and dynamotors
- and whatnot resurrected it in my mind...
-
- Many inverters use square waveforms rather than sinusiodal waveforms.
- Intuitively, though, it seems that significantly less energy will be
- transferred from the primary to the secondary of the transformer using
- square waves (input changes at discrete places in the waveform) than
- would be transferred using sinusoidal waveforms (input continuously changing)
- What am I missing?
-
- Along the same lines, presumably the outputs of inverters are square waves
- rather than sinusoids (I'm speculating, I don't know). It seems you could
- do some serious damage to the motors in some devices, drills, margarita
- blenders, refrigerators, freezers, and such. Any comments?
-
- Thanks a bunch. E-mail replies welcome.
-
- Lee
-
-