DC to AC convertor

[The Master]

Unfortunately i dont know much about the motor. I tried searching google for its number but i didnt find anything useful.

Heres what it says on the label:-
41TYZ-A synchronous motor
AC 6V 50/60Hz 1.5/2W
5r/min Cw/CCw

[Byte_Butcher]

Ahhh. It's a synchronous motor, so it not only wants AC, but it wants AC at 50/60 Hz and it probably wants at least a modest approximation of a sine wave. A square wave will probably make it unhappy...

Is efficiency a big issue? Gonna plug it into the wall, or run it off a battery?

If efficiency isn't really an issue, then a hardware solution with an op-amp based sinewave generator feeding an audio amplifier type driver is probably easiest.

steve

[The Master]

Im not too bothered about efficiency. It will be run from a mains transformer but the 12V DC needs to be turned on/off using a transistor and the motor will be connected with 64 LEDs (on the DC side). I can use a more powerfull transistor than normal but i dont want it to be using too much current.

Ill have a look for op-amp sinewave circuits. Ive not done much with op-amps before so this is the perfect learning opportunity

[Acetronics2]

An OPA triangle generator with clamping diodes on the output, plus a bridge audio amp ( TDA2005 i.e ) could produce an acceptable waveform ...

"Sine" generator is not so difficult to build nor ...

don't you think ???

Alain

[Byte_Butcher]

Op-amp sine generators are easy to build. A google search will get you lots of hits. Here's a couple of pages to start:

http://www.ti.com/sc/docs/apps/msp/j...000/aug_07.pdf
http://www.national.com/nationaledge/jun04/article.html

Drive a TDA2005 or similar like Alain suggested and you're done...


steve

[The Master]

That looks easy enough. Ill add the parts to my next order and see how it goes. Thanks