How to generate PWM signals with the time as input

I am developing a simulation of a three phase voltage source inverter using space vector pwm. I am using reduced calculation SVPWM [1]. I have developed the simulink model to calculate the firing time for each upper switch of the 2 level inverter. Now I want to generate PWM signals with the input of the firing time. For example, say my PWM period is 100us and the calculated firing time for a switch is 25us. When I input 25us and 100us, the output should be a PWM signal with 25% duty.

How can I accomplish this in simulink?

[1] http://link.springer.com/article/10.1007%252Fs13369-012-0464-2

[Walter Roberson]

You want to create actual signals, or you want to create simulated signals?