Asked by Virgil Hobbs on May 20, 2024

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A square wave voltage varies between 0 V and 12 V. The positive pulses are 75 μ s wide and there is a 25 μ s gap between them. What is the DC average of the waveform?

A) 3 V
B) 4 V
C) 6 V
D) 9 V

Square Wave Voltage

A waveform of voltage that switches between high and low states, creating a square shape.

DC Average

The average value of a direct current (DC) signal over a period of time, usually calculated by integrating the signal over that period and dividing by the period's length.

Positive Pulses

Positive pulses are brief increases in electrical voltage or current that move from a baseline towards a higher value in a positive direction.

  • Analyze and interpret electrical waveforms related to motor operation and control.
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Think About ItMay 24, 2024
Final Answer :
D
Explanation :
The DC average voltage of a waveform is calculated by finding the area under the curve (voltage multiplied by time) and then dividing by the total period. Here, the total period is 75 μs (pulse width) + 25 μs (gap) = 100 μs. The area under the curve is 12 V * 75 μs. So, the DC average = (12 V * 75 μs) / 100 μs = 9 V.