Topic
Sine wave
About: Sine wave is a research topic. Over the lifetime, 12183 publications have been published within this topic receiving 93013 citations. The topic is also known as: sinusoid.
Papers published on a yearly basis
Papers
More filters
•
28 Sep 1979TL;DR: In this article, a system for driving an alternate current motor including a pulse width modulation inverter having the two-range driving characteristics was proposed, where the motor is driven by the modulation output having a simulated sine wave form at the speed lower than the base speed of the motor and by a rectangular wave form with a speed higher than the motor's base speed.
Abstract: A system for driving an alternate current motor including a pulse width modulation inverter having the two-range driving characteristics, wherein the motor is driven by the pulse width modulation output having a simulated sine wave form at the speed lower than the base speed of the motor and by the pulse width modulation output having a rectangular wave form at the speed higher than the base speed of the motor.
26 citations
••
26 citations
•
25 May 1989TL;DR: In this paper, a parallel operating system for A.C. output converters of high frequency PWM inverters of an instantaneous current valve control type is provided with a current minor loop for controlling the instantaneous value of the output current.
Abstract: A parallel operating system for A.C. output converters of high frequency PWM inverters of an instantaneous current valve control type is provided with a current minor loop for controlling the instantaneous value of the output current. The current of each inverter minor loop is adapted to be supplied with a command value from a voltage major loop and a command value corresponding to the load current to be borne by each converter derived from the load current, as the command value for the current to be output by the converter for maintaining the output voltage at a sine wave.
25 citations
•
29 May 1992TL;DR: In this article, a two-three phase driving scheme was proposed to alternately effect a two phase excitation of the coils in the motor and a three-phase excitation on the coils of the motor.
Abstract: As a method for energizing a three-phase stepping motor of Y-connection, driving current values are set to be values resembling sine wave input approximation, thus making it possible to effect driving at small vibration. Energizing of the three-phase stepping motor is performed by a two-three phase driving scheme which calls for alternately effecting a two-phase excitation of the coils in the motor and a three-phase excitation of the coils in the motor. The driving current flowing through each of the coils approximates a sine wave having normalized values defined by ± 1, ± 0.87, ± 0.5 and 0.
25 citations