I'm trying to get a PWM modulated signal using the next circuit
It is supposed the oscillator part changes the voltage from 2.5 V to -2.5 when reaching saturation, I was expecting something like this
using the variable resistor to change the duty cycle , but the output done is
What Im missing? Its wrong done the circuit? The variable resistor is placed right?
After updating the circuit
It gets the next output
but Im having trouble with the source since only after these values (0-25V) its behaving like the triangle source and the time on/off (duty cicle) is showing as well, I was trying to use a small source but I dint get how to correct the hysteresis; aside the oscillator part seems to be not working, even when changing the property of the variable resistor
I have never used a variable resistor in pspice so I don't know if this is well connected or the property well adjusted. It was expect to varyate the duty cycle by changing the value of the resistor R12.