What exactly are harmonics and how do they "appear"?
May 21, 2012 · "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, …
How do I calculate THD? - Electrical Engineering Stack Exchange
Apr 24, 2024 · 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: …
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?
amplifier - Calculate total harmonic distortion - Electrical ...
May 18, 2020 · Calculate total harmonic distortion Ask Question Asked 5 years, 7 months ago Modified 2 years, 1 month ago
power electronics - Electrical Engineering Stack Exchange
May 8, 2025 · 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 …
Why harmonic distortion and not at other frequencies?
Apr 22, 2020 · In understanding harmonic distortion, one piece of the puzzle that is missing for me is: - why does the distortion manifest at harmonic frequencies and not other frequencies. Feel …
SMPS: What is current mode instability (aka “sub-harmonic …
Oct 22, 2014 · Sub-harmonic oscillations in current-mode-controlled converters are easily revealed through simple drawings as shown in akellyirl answer. However, it is less known that …
Filter design according to harmonics in an inverter
Apr 17, 2024 · 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 …
50/60Hz Noise Harmonics - Electrical Engineering Stack Exchange
Jun 29, 2017 · Why are only the odd harmonics of 60Hz noise visible? Most loads that generate distortion on the power line are symmetrical with respect to voltage, so they produce only odd …
Help me understand FFT and harmonic distortions - Electrical ...
Jan 9, 2015 · 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 …