Duty-Cycle for square-wave sources

Voltage and Current sources have phase-offset, great! But I miss duty-cycle for square waves.

This would be very helpful for all sorts of switched converters (buck, flyback, half/full-bridge etc.). Where the duty-cycle is the main control parameter.

If the duty-cycle could be controlled by a voltage, one could even model the feed-back loop, but that's a bonus.

P.S.: The "digital clock" has a duty cylce, but no phase. One really needs both.

by smuellerch
September 07, 2013

Have you tried using the Voltage and Current sources set to a triangle wave, followed by a comparator?

The phase of the triangle wave will give you the phase of the pulse waveform and the reference voltage of the comparator will give you the duty cycle.

This is, of course, the basic core of a PWM in many SMPS topologies anyway.

The PWM Generator in the left hand component selection panel does a similar job.

:)

by signality
September 08, 2013

Never noticed the PWM component before! I rephrase my feature request to this:

Please add a phase parameter to the PWM component.

That would be just perfect.

And thanks for the workaround.

by smuellerch
September 08, 2013

Post a Reply

Please sign in or create an account to comment.