Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!bbn!bbn.com!denbeste From: denbeste@bbn.com (Steven Den Beste) Newsgroups: comp.sys.amiga Subject: Re: 220->110V, 50Hz->60Hz transformer! Summary: It is impossible for just a transformer to change the frequency Message-ID: <42198@bbn.COM> Date: 30 Jun 89 12:55:07 GMT References: <18764@louie.udel.EDU> Sender: news@bbn.COM Lines: 15 In article <18764@louie.udel.EDU>, BPJ0%LEHIGH.BITNET@ibm1.cc.lehigh.edu (Bin) writes: > Hi I'm looking for the above transformer. I want to run a 110V/60Hz > Amiga from a 220V/50Hz power supply. The frequency change is > necessary. I'm also unsure about how much wattage I need? Somebody > suggested 300W. Using a 2000, Nec Multisync 3D and some other stuff! > > > Bin It is impossible for a transformer to change the frequency, if it is just a transformer. The device would have to rectify line power to DC, and then use a reference oscillator and a power amplifier to create AC at the new frequency. All of this is a heck of a lot more complicated than a simple voltage change, though it is saved somewhat by the fact that the output power amplifier doesn't have to be very clean; it just has to have a lot of ooomph.