PWM Flashcards
1
Q
What happens to the average voltage when you increase/decrease the duty cycle of a PWM signal?
A
Increase - Increases the voltage
Decrease - Decreases the voltage
2
Q
What are the 3 types of PWM waves?
A
> Square wave modulation
Edge-aligned modulation (Saw wave)
Centre-aligned modulation (Triangle wave)
3
Q
How is a square PWM signal made?
A
By comparing a control signal to either an edge-aligned or a centre-aligned signal
4
Q
What is the range of a duty cycle?
A
0 to 1
5
Q
What is the equation to calculate the on time (ton) and off time (toff) for a specific duty cycle and time period?
A
ton = KTs toff = (1 - K)Ts
