Pulse Width is defined as what?

Pulse Width is defined as what?

• A. Measure the duration between two pulses
• B. Measure the frequency of a pulse train
• C. Measure the time from the start to the end of a single pulse of energy
• D. Measure the energy of a pulse

Answer: (C)

Pulse width is the duration of a single pulse—the time from when the pulse begins (rising edge) to when it ends (falling edge). It tells you how long the signal stays “on” in one pulse. This is different from the interval between pulses (the gap), the frequency (how many pulses occur per second), and the energy (which depends on both the pulse's amplitude and its duration, among other factors). For example, if a pulse lasts 2 microseconds and repeats every 20 microseconds, the pulse width is 2 µs, the period is 20 µs, and the duty cycle is 2/20 = 10%.

Pulse width is the duration of a single pulse—the time from when the pulse begins (rising edge) to when it ends (falling edge). It tells you how long the signal stays “on” in one pulse. This is different from the interval between pulses (the gap), the frequency (how many pulses occur per second), and the energy (which depends on both the pulse's amplitude and its duration, among other factors). For example, if a pulse lasts 2 microseconds and repeats every 20 microseconds, the pulse width is 2 µs, the period is 20 µs, and the duty cycle is 2/20 = 10%.