harmonic distortion


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harmonic distortion

[här′män·ik di′stȯr·shən]
(electronics)
Nonlinear distortion in which undesired harmonics of a sinusoidal input signal are generated because of circuit nonlinearity.

harmonic distortion

In communications, unwanted frequencies that are generated as multiples of the original frequency due to irregularities in the transmission line. In audio amplifiers, harmonic distortion comes from non-uniform operation (non-linearity) in the amplifier circuits. See harmonic.
References in periodicals archive ?
Low on-resistance flatness is essential for excellent total harmonic distortion (THD) so that there is no signal distortion, which is important for audio applications," said Walter Moshammer, Director Marketing Standard Linear at austriamicrosystems.
3V the parts offer a typical output power of 113mW into 16 ohms, at a total harmonic distortion plus noise (THD + N) figure of 1% maximum.
3V the output power of each amplifier is 38mW into 16 Ohms, measured at a total harmonic distortion plus noise figure of a maximum of 0.
The IRS20124S high-voltage IC incorporated in this reference design features an internal selectable dead-time generation circuit and is immune to noise and supply voltage fluctuations to help achieve a total harmonic distortion (THD) of 0.
Advanced Energy designed the OPS-U-500-385 into its MDX500CE with PFC power supply to meet strict harmonic distortion requirements for the European CE design standard, said Bob Pray, Advanced Energy's DC support engineering manager.
Both kits incorporate a broad range of design features, including universal line input, low harmonic distortion, low stand-by power and various protection features.
The OPA684 sets a new direction in high-speed amplifier design by providing outstanding bandwidth over a very wide gain range along with improved harmonic distortion compared to previous low power op amps," said Michael Steffes, strategic marketing manager for TI's high-speed signal processing products.
All power levels are pure sine wave with total harmonic distortion "THD" of less than 2.
The Total Harmonic Distortion + Noise (THD+N) of the AD1852/54 (-97 to - 104 dB) is the best available, greatly enhancing the user's audio experience.
Aerielle Enabled means Simply Better Sound(TM) -- unparalleled audio fidelity that produces crisper highs and deeper lows through enhanced noise reduction technology, high-quality stereo separation, and superior total harmonic distortion performance that improves the listening experience.
Tri-Lite projects that the world market for its active harmonic distortion filters will rise into the billion dollar range by early in the next millennium," the Donner report said.
EBT electronic ballasts produce no feedback onto the power line and feature a total harmonic distortion of less than 20 percent and a power factor of 98 percent.