total harmonic distortion


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total harmonic distortion

[′tōd·əl här′män·ik di′stȯr·shən]
(electronics)
Ratio of the power at the fundamental frequency, measured at the output of the transmission system considered, to the power of all harmonics observed at the output of the system because of its nonlinearity, when a single frequency signal of specified power is applied to the input of the system; it is expressed in decibels.
References in periodicals archive ?
Abilities include measurement of Total Harmonic Distortion (THD) over the complete 20Hz to 20kHz audio band, as well as measurement over a wide input range (up to 750Vrms) and has low residual distortion (-87dB).
Jerrold M Hornstein, director of business development for Astrodyne's mil/aero market segment, said, "The PFC-375 offers high power factor, compliance with MIL STD 704 transient and MIL STD 461 and RTCA DO-160 total harmonic distortion requirements.
Employing accurate primary side power regulation, the IRS29831 integrates an LED driver control IC and power MOSFET utilizing 700V technology and features high-voltage start up to offer a simple cost-effective single stage solution while maintaining a high power factor and low Total Harmonic Distortion (THD) for improved efficiency.
The new device also features a total harmonic distortion (THD) optimization circuit to reduce line current harmonics.
The generators provide the lowest total harmonic distortion and jitter in their class.
The waveform generators provide the lowest jitter (less than 1 ps jitter, or 200x better than previous generation Direct Digital Synthesis generators) and lowest total harmonic distortion in their class, giving engineers the ability to generate the exact signals they need.
The architecture provides excellent compatibility with legacy wall dimmers and delivers high power factor and low total harmonic distortion (THD).
Since many AC-sourced electronic applications have a microphone, amplifier or loudspeaker, which need an accurate reproduction of sound, this controller offers exceptionally low Total Harmonic Distortion (4.
Quality is specified in terms of total harmonic distortion (THD) and power factor and the iW3616 and iW3617 easily exceed all requirements, achieving power factor greater than 0.
Simultaneously, the Audio Spectrum view details the demodulated audio spectrum, as well as the Rate, RMS deviation, Pk-Pk/2 deviation, SINAD, Total Harmonic Distortion (THD), and Distortion/Total.

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