Talk:Frequency changer

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Untitled[edit]

In english Wikipedia also exists article Frequency converter, which is quite similar. Do you think that you could put these two articles together and make redirect from one of them to the second one? --147.230.151.146 16:10, 20 December 2006 (UTC)[reply]

Thanks for pointing that out; I've added {{merge}} tags to both articles and we'll see what others think.

Atlant 17:05, 20 December 2006 (UTC)[reply]

I should point out that the group should keep in mind that there are two concepts involved under the name...

A device that changes the frequency of POWER to make it compatible with various equpment
A device that changes the frequency of a SIGNAL - for example the converter in a superhetrodyne receiver.

At one time I made a start to change the article called "frequency converter" to deal with that concept, but my edits were reverted as it was too large a change to do in one session, and subsequently more material has been added on the power conversion concept. I recall at the time That I merged most of the power conversion stuff into the "other" articles on the topic, of which their are more than one.

I then took the role of discouraged editor and have left this one alone, concentrating my limited editing time on articles in other fields, like filmmaking. I am not an expert of The power conversion aspect. Some of the material that I was going to put into "freqency conversion" (see the history) I had removed as being slightly off topic under pentagrid converter when another contributor had tried to turn that article into a general coverage of the entire topic. That device is a special case of a superhetrodyne converter, notable becuase of its wide useage when it was current, and this is the more general topic.

Power conversion, Motor-generator, Power conditioner all are related and should be considered if you want to do a merge/refactor on the topic of conversion of power, and their should also be a page on conversion of signals.. I have steped back as I apperantly caused offence with my last effort. cmacd 17:57, 20 December 2006 (UTC)[reply]

When I think of the process involved with non-power frequencies, I tend to think of it generically as a "mixer" so frequency mixer. I think this is a pretty universal EE term for the generic class of gadgets. Have you seen that article yet?

Atlant 19:29, 20 December 2006 (UTC)[reply]

I had seen the article and figured that it needs a re-write from Unber-Geek to english. Where I have encountered the function in receivers it has always been called a converter. (osc and Mix together) going back to the pentagrid and autodyne converters. cmacd 19:46, 20 December 2006 (UTC)[reply]

How would I convert 125vac/100hz to 125vac/60hz? walterpcolar@aol.com —Preceding unsigned comment added by 69.126.31.191 (talk) 02:40, 1 March 2010 (UTC)[reply]

Rotary converters[edit]

There's a sort of converter that used to be common and doesn't seem to be mentioned... one consisting of a large transformer in which the secondary winding was on a rotor, and the primary the stator. The ones I knew were synchronous, driven by a smaller motor to gain 10 Hz so they could run on Australia's 50 Hz mains and produce the 60 Hz that some IBM mainframes demanded.

http://www.georator.com/ProductRotaryMotorGenerator.html

describes some similar machines, but wound on one shaft so that the motor was synchronous too. That's not necessary with a belt-driven system... most of the energy is going into the primary coils, so the synchronous dynamo locks on and the motor just has to follow suit. Andrewa (talk) 08:45, 9 August 2016 (UTC)[reply]

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Speed of AC motors depend on frequency[edit]

It is mentioned that the speed of Synchronous motors depends on the frequency of the AC current, but the same applies to Asynchronous (simple AC induction motors) motors. It seems as "only synchronous motors" is implied. 79.107.34.12 (talk) 16:15, 23 November 2023 (UTC)[reply]