Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.1 6/24/83; site astrovax.UUCP Path: utzoo!watmath!clyde!burl!ulysses!mhuxl!houxm!ihnp4!astrovax!wls From: wls@astrovax.UUCP (William L. Sebok) Newsgroups: net.space Subject: Re: More of same (electric motors and low end torque) Message-ID: <419@astrovax.UUCP> Date: Tue, 14-Aug-84 11:56:14 EDT Article-I.D.: astrovax.419 Posted: Tue Aug 14 11:56:14 1984 Date-Received: Wed, 15-Aug-84 01:40:09 EDT References: <12324@sri-arpa.UUCP> <1316@wateng.UUCP> Organization: Princeton Univ. Astrophysics Lines: 11 My father had many electric motor patents to his name. The last project my he was working on before he died last month was an electric motor which used a custom VLSI chip to operate the motor at an optimal point at various load and speed conditions. Thus one could make a much smaller motor of the same power. I am not sure but I think it was basically an induction type motor and the circuitry delivered an AC with (at least) the frequency tweaked for optimal operation. I am not sure what other parameters the circuitry adjusted. Work on this motor continues as AMETEK/Lamb Electric, in Kent, Ohio. -- Bill Sebok Princeton University, Astrophysics {allegra,akgua,burl,cbosgd,decvax,ihnp4,noao,princeton,vax135}!astrovax!wls