i need to trigger a thyristor using a micro...and iam looking for the circuit and the program of it??

 

Welcome

And good luck with what ever u r looking for ?

 

Use opto coupler with triac output, something like a TLP3042, " 0" crossing; PN A10035, Electronic Goldmine.

 

i need to trigger a thyristor using a micro...and iam looking for the circuit and the program of it??

Please give more detail. Many people might think micro = microcontroller, and your reference to a program supports this, but depending on your language background you might as easily be talking about a microphone.

 

Here is the datasheet for the TPL3042 that Bernard mentioned:
http://www.toshiba.com/taec/components2/Datasheet_Sync/210/11298.pdf

You might also consider the MOC3052; Mouser stocks them:
http://www.mouser.com/ProductDetail...=sGAEpiMZZMteimceiIVCB7OZToIkTRfkfUoveAoqsbw=
$0.85 USD each, no minimum purchase.
Datasheet:
http://www.fairchildsemi.com/ds/MO/MOC3052M.pdf

There are also these:
PR39MF51
http://parts.digikey.com/1/parts/757290-relay-ssr-240v-0-9a-8-dip-pr39mf51nszf.html
$1.38/ea, non zero crossing type, 0.9A 600V