PWM input and output signals are often converted to analog voltage signals using low-pass filters. Design and simulate the follo

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3 years ago

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PWM input and output signals are often converted to analog voltage signals using low-pass filters. Design and simulate the follo

wing: a PWM signal source with 1 kHz base frequency and adjustable pulse-width modulation(PWM source), an analog filter with time constant of 0.01 s. Simulate the input and output of the low pass filter for a PWM duty cycle of 25, 50, and 100%

Engineering

1 answer:

Temka [501] · Answer 1 · 2022-04-10T09:34:18+03:00

Answer:

Attached below

Explanation:

PWM signal source has 1 KHz base frequency

Analog filter : with time constant = 0.01 s

low pass transfer function = $\frac{1}{0.01s + 1 }$

PWM duty cycle is a constant block

Attached below is the design and simulation into Simulink at 25% , 50% and 100% respectively