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This is my first time using circuitlab, so I might ask something trivial or already answered in other threads.

I need to generate a PWM square wave but can't find a 'block' already made from components that does this. I found 'PWM1' but it doesn't allow the duty cycle to be adjusted, do you know how I can do this? If there isn't a block already made, and being an electronics beginner, I'm asking for help on how to make it (I would say using a sawtooth wave)

Hi:

The "Digital Clock" under "Digital Primitives" has a duty cycle parameter, but ti doesn't show up on the schematic.

--- sam