Hi everyone
I am constructing a firing circuit that can pulse electronic devices such as thyristors , any ideas ?

 

These texts may help you:
http://www.littelfuse.com/data/en/Application_Notes/AN1003.pdfhttps://www.littelfuse.com/data/en/application_notes/an1001.pdf

 

Here is one example of thyristor full wave Dimmer, using a Unijuction Transistor as the pulser, there are other methods using micros, ...with Triacs..

 

What will you be doing with the firing circuit? e.g. Motor speed control, lamp dimming, power supply regulation, etc?

Do you need switching at the zero crossing or continuously variable firing phase?

Will the primary control be a control voltage, a pot, or other?

 

What will you be doing with the firing circuit? e.g. Motor speed control, lamp dimming, power supply regulation, etc?

Do you need switching at the zero crossing or continuously variable firing phase?

Will the primary control be a control voltage, a pot, or other?

I want a firing circuit that can do as the arduino do with variable potientiometer and the pulses should be 1ms , i want it to fire electronic devices such as triac or SCR at angles all around the sine wave .

 

Here is one way using a Zero crossing system, and Triac firing with an optocoupler..use a MOC3063 zcd type instead of 3020.

 

Hi everyone,
I am constructing a firing circuit using this technique. looking for any suggestions for those sub tasks and the components needed for this circuit.

 

What is the purpose of the multivibrators, to make a picket fence string of gate pulses?

 

We need to know input and output voltages/currents/frequencies before any components can be suggested.