Half-Bridge Series Resonant Circuit Simulation - Modulation/Duty Cycle Simulation

[user92]

Hi Everyone,

I am an EE student and am building a half-bridge series resonant circuit (induction cooker) as a project. I have been looking at a lot of the material available in books and research papers etc and I have a circuit example from a power electronics book that I can use in PSPICE.

My question is about varying the pulse width (Switch 1 - on time, Switch 1 off, Switch 1 - on time etc) to create a near sinusoid current output. I can use PSPICE but am by no means an expert so I would like to know is it possible to implement this in PSPICE as at the moment it the switching time is constant for both switches. I have access to PSIM although I have no used it much (if its better to use this simulation software?)

Also I would be grateful if anyone could give any helpful thoughts they may have on a project like this.

Many thanks,

Happy Christmas to everyone

 

[chuckey]

You have not mentioned the magic words - pulsed width modulation (PWM) and dead time. Look at Wiki and threads on this forum there are lots of data and real life circuits.
Frank

 

[user92]

Thanks for the response Frank,

I was not certain of the correct terminology earlier so left it out. I looked back through my notes and seen PWM control and will implement this using PSIM now.

Cheers