Re: All Over Reactance

[Terry Blanton]

Jones Beene ranted: Isn't is fair to ask why - why did it take till the late 90s to get these into mass production, but let's not embarrass too many EEs. Resonant or "switched mode" power supplies have been in use for forty years.  They were noisy and expensive until the late 70's when MOSFETs came into play.  http://www.steve-w.dircon.co.uk/fleadh/mphil/history.htm -unembarrassed EE