Frequency of 12v halogen transfomer?

Hello everyone..
I would try using a 12v transformer halogen (please see photo) for flyback driver (about 10-30 watts) .But seller sell on Ebay do not know the frequency of 12 vac, so could you help me to know that(frequency of 12 vac out) thank you in advance.

Picture of Frequency of 12v halogen transfomer?
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If its an electronic transformer, it might not be mains frequency. What do you want to do with it ?

lam (author)  steveastrouk2 years ago

Dear steveastrouk

I would try using a 12v transformer halogen (please
see photo) for flyback driver (about 10-30 watts) .But seller sell on
Ebay do not know the frequency of 12 vac, so could you help me to know
that(frequency of 12 vac out) thank you in advance.

Best regards

lam

Let me see your intended circuit.

lam (author)  steveastrouk2 years ago

Dear steastrouk

Please see at:

http://www.loneoceans.com/labs/flyback/

and photo (but I will to buy 120vac not 230ac as picture)

Thank you so much


smpsudiag.gif

That won't work as a flyback driver without more electronics.

check the output waveform, it's a high frequency which can drive a flyback.

lam (author)  steveastrouk2 years ago

Dear steveastrouk

Thank you alot for your advice

Best regards

If it's 50Hz or 60Hz going in then it will be 50Hz or 60Hz coming out.

no, because smpsu's use pulse-width modulation,and therefore output a high frequency, instead of a normal transformer, in which the output frequency is the same as the input frequency.

I ripped one of those apart, definatly an switch mode power supply-so it'll work for your flyback driver.