Voltage to time in LTspice

[Flyback]

In the attached, i have a Voltage source of 18uV.

I want to use the 0.000018 value as a time in the oscillator...how do i do that?
The attached doesnt work.

 

[crutschow]

Do you want 18µV to give an 18µs pulse?

 

[eTech]

In the attached, i have a Voltage source of 18uV.

I want to use the 0.000018 value as a time in the oscillator...how do i do that?
The attached doesnt work.

The period in an independent voltage source can't be changed with a voltage. It can only use static parameters that are read before simulation start.

This shows how you can change pulse width with a voltage.

Or, If you want a single pulse output.