overmodulation


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overmodulation

[¦ō·vər‚mäj·ə′lā·shən]
(communications)
Amplitude modulation greater than 100%, causing distortion because the carrier voltage is reduced to zero during portions of each cycle.
References in periodicals archive ?
Odhano, "Modulated model predictive control with optimized overmodulation," IEEE Journal of Emerging and Selected Topics in Power Electronics, p.
"Space vector pulse width modulation of three-level inverter extending operation into overmodulation region," IEEE Transactions on Power Electronics, 18(2): 604-611.
Khambadkone, "A simple space vector PWM scheme to operate a three-level NPC inverter at high modulation index including overmodulation region, with neutral point balancing," IEEE Transactions on Industry Applications, vol.
Another problem that arises frequently when you're mixing audio for live events is overmodulation (or overmod) on the mixer input.
Goodman (39) noted that dissociative symptoms in PTSD may be a distinct aspect of the disorder but also a part of maladaptive posttraumatic process certain with emotional overmodulation mediated by midline prefrontal inhibition of limbic regions.
Elbuluk, "A novel overmodulation and field weakening strategy for direct torque control of induction machines," in Proceedings of the IEEE Industry Applications Society Annual Meeting (IAS '08), pp.
N-Methyl-2-pyrrolidone was used in combination with NVP (a solution obtained in a previous study [19]) in order to control the overmodulation during hologram recording.
The topics include the overmodulation of three-phase voltage inverters, stochastic modulation strategies, PWM strategies for multi-level converters, and sliding mode current control for a synchronous motor.
It can be described as a kind of "chronic numbing" (Chu, 2010, p.615) and in terms of the neurobiology of the disorder there is an overmodulation of emotions by inhibition of the limbic regions related to emotions.
Carrier based PWM-VSI overmodulation strategies: Analysis, comparison, and design // IEEE Trans.
The boundary of the linear modulation and overmodulation is the hexagon.
To obtain the maximum possible fundamental voltage 2Vdc/[pi], the operation of the VSI must be extended into the overmodulation region.