Sinusoidal Current

Also found in: Medical.

sinusoidal current

[‚sī·nə′sȯid·əl ′kə·rənt]

Sinusoidal Current


an alternating current that constitutes a sinusoidal function of time in the form i = Im sin (ωt + Φ), where i is the instantaneous value of the current, Im is the current’s amplitude, ω is the angular frequency, and Φ is the initial phase angle. Inasmuch as a sinusoidal function resembles its derivative, in all parts of a linear circuit carrying a sinusoidal current the voltages, currents, and induced emf’s are also sinusoidal. The use of sinusoidal currents in technology simplifies electrical devices and circuits, as well as design calculations. [23–1297–]

References in periodicals archive ?
No microcontroller or firmware is used, and the intelligent sinusoidal current drive minimizes acoustic noise and torque ripple to maximize motor performance
The resulting clean sinusoidal current will therefore cause little or no distortion on the network voltage waveform.
The ACS 2000 design provides near sinusoidal current and voltage waveforms making the drive compatible for use with standard NEMA rated motors.
The testing team noticed that the graphical waveform of the sinusoidal current and voltage provided by the True RMS meter was not well represented by the meter.
The DEA instrumentation applies a sinusoidal voltage across electrodes placed in intimate contact with the material being tested at a chosen frequency or multiple frequencies and measures the resulting sinusoidal current.
4(a) it can be seen that the load current waveform has been improved and the source see a sinusoidal current waveform.
The voltage on charge is forming by PWM impulses and sinusoidal current depends by number of PWM impulses and modulation.
When a resistive load is driven by a sinusoidal voltage waveform or a sinusoidal current waveform, the average power dissipated by the load is calculated from an RMS voltage measurement.