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- What exactly are harmonics and how do they appear?
"how are harmonics generated? The signal is just "on" or "off", how are there first, third, and fifth harmonics and why do they get weaker?" Although not a satisfactory answer, you could accept the fact that any physically realizable continuous-time signal can be represented as an infinite sum of sinusoids (that's a Fourier series) Thus, any sinusoidal signal doesn't have harmonics, or it
- How do I calculate THD? - Electrical Engineering Stack Exchange
I want to calculate the total harmonic distortion of the signal using this graph and formula The formula is taken from this page: Calculating harmonic distortion First Question: So my problem is to
- filter - What is the harmonic content of a PWM signal? - Electrical . . .
To properly design a filter for this application to hit a specific harmonic distortion target, I need to know the harmonic content of the PWM signal How can I predict what that harmonic content is?
- Filter design according to harmonics in an inverter
According to the Fourier series, when AC waves of different frequencies are added to the fundamental frequency, we can obtain waves such as square and sawtooth When we filter out the harmonics in
- power electronics - Electrical Engineering Stack Exchange
I'm working on a project involving multiple non-linear electrical loads, and I want to estimate the total THDi (Total Harmonic Distortion of Current) and, if possible, THDv (Total Harmonic Distortion of Voltage) for the group of loads
- Help me understand FFT and harmonic distortions - Electrical . . .
I'm new to FFT and harmonic distortions I'm dealing with a power system where the phase currents are distorted Now I don't understand the concept of FFT and why the harmonics seen in FFT relate
- signal - Harmonic detection using lock-in amplifier - Electrical . . .
0 Can a third harmonic of a signal be detected using a lock-in amplifier under the same parameters fixed for collecting the fundamental or the parameters needs to be adjusted Here by parameters I mean sensitivity , time constant and phase I am using a Mach-zehnder interferometer to intensity modulate my laser beam which is pulsed at 80 Mhz rep
- RMS value of fundamental harmonic vs RMS of third harmonic
The third harmonic of a triangle wave has another RMS value than the third harmonic of a square wave The shape is extremely important
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