How to generate digital gate signal of periodic phase shift

[hiy88]

Hi all. I am not an expert in electronics. Due to a school assignment, I have to generate periodic phase shift for a mosfet (inverter system). Hence I really need help some experts on this issue.

Firstly, I would like to know how phase shifts can be implemented to a digital signal (50% duty cycle).
Secondly, how can I make the phase shift vary (from -Ts/4 to Ts/4 (Ts = 100kHz)) over a defined period of time (e.g. f = 60Hz). The variation in this case is a linear variation.

Also looking for recommendations on the components and software needed to implement this system.

I look forward to your replies. Thank you. :-(

 

[barry]

I assume you are generating the 60Hz signal digitally using a 100KHz clock, right? If I understand that correctly, then one way of doing this would be to have a divide-by-1667 counter to generate a 60Hz output. Then, you would have a second "delay" counter that would count a programmable number of clocks before enabling the first counter.