Does anybody have an idea what kind of motor is this exhaust fan having - Universal ac/dc motor, induction, split phase or something else?
I need Universal ac/dc motor fan for my project or more clearly i want to control the speed of fan using ac chopper circuit so i need Universal ac/dc motor.
Photos given
As it says , it is an AC motor , rated for 220vac @ 50hz or 230vac @ 60hz , with a current rating of 0.2A (200mA) at either voltage.
If you want to turn it on or off or control the speed you could use a solid state relay controlled by a digital pin for ON/OFF or by a PWM pin for variable speed. It's plug and play. Just don't wire up the SSR if you don't know how until you find out how. If I had the fan and the SSR in front of me I could have it working in 60 seconds flat. (maybe 90 XD)
Certainly not "AC/ DC Universal".
Essentially a shaded-pole "squirrel cage" motor, quite unsuitable for speed control.
A significant problem is that shaded-pole motors have much less starting torque than other types and thus poor low-speed performance. Variable-speed fans generally use capacitor-run "split phase" motors.
And the perennial question - what do you wish to use it for?
Certainly not "AC/ DC Universal".
Your right. It won't run on DC. And the OP didn't say how many wires it has either.
raschemmel:
As it says , it is an AC motor , rated for 220vac @ 50hz or 230vac @ 60hz , with a current rating of 0.2A (200mA) at either voltage.
Close. It's 2200r 230VAC, 50 or 60 Hz.
It says 220/230vac, 50/60hz which means 220vac @ 50hz or 230vac @ 60hz. This is standard convention for motor specs so i don't understand what you are contesting. You can't be disagreeing with this statement so what do you mean by "2200r" ?
I don't recognize that. Do you mean 2200rpm ?
raschemmel:
It says 220/230vac, 50/60hz which means 220vac @ 50hz or 230vac @ 60hz. This is standard convention for motor specs so i don't understand what you are contesting. You can't be disagreeing with this statement so what do you mean by "2200r" ?
I don't recognize that. Do you mean 2200rpm ?
No, I left out a space.
220 OR 230 VAC
50 OR 60 Hz.
In other words, it does not mean that if you run it on 220VAC that it has to be at 50 Hz. or that if you run it at 230VAC that it has to be at 60 Hz.
Really ? Are you sure ?
I didn't know that . I thought that the use of the "/" was intended to specify the parameters as EITHER /OR rather than BOTH.
raschemmel:
Really ? Are you sure ?
I didn't know that . I thought that the use of the "/" was intended to specify the parameters as EITHER /OR rather than BOTH.
What is the purpose of the quoted URL?
Yes, really.
Yes, I'm sure.
For all intents and purposes, 220VAC and 230VAC are the same voltage, due to the tolerances of each stated voltage, which makes the 220VAC tolerance include 230VAC, and vice versa. This was pretty much standardized world-wide over a period ranging from around the mid 90s to just a few years ago. 2008? 2009? Not sure..
I would be VERY surprised to see a motor marked 220VAC/50Hz 230VAC/60Hz, which I would take to mean what you thought, but makes no sense in light of the world-wide voltage standardization.
So really, it depends on what you mean by EITHER/OR or BOTH.
That motor will run perfectly well on EITHER 220VAC OR 230VAC, and will run perfectly well on EITHER 50 OR 60 Hz.
Thanks for clarifying that.
What is the purpose of the quoted URL?
I was multitasking and got my posts mixed up. Sorry. 
