Hello,
I'm working on a solenoid control and found the PWM signal from the DSpic as shown in images below. I'm having trouble trying to figure out what's the duty cycle for each one and what the avg dc voltage would be. I'm familiar with the regular square wave PWM that stays above 0, but this PWM signal also goes below 0. Can someone please explain.
The frequency is 24Khz for both waves. They are shown at different duty cycles.
How do I determine the duty cycle by looking at the scope images?
What is my average DC output?
I'm working on a solenoid control and found the PWM signal from the DSpic as shown in images below. I'm having trouble trying to figure out what's the duty cycle for each one and what the avg dc voltage would be. I'm familiar with the regular square wave PWM that stays above 0, but this PWM signal also goes below 0. Can someone please explain.
The frequency is 24Khz for both waves. They are shown at different duty cycles.
How do I determine the duty cycle by looking at the scope images?
What is my average DC output?