2018年5月7日 · Power of a sine wave is not dependent on the period (or frequency for that matter). It is only computed from the root mean square (RMS) value of your sine wave and the phase difference between current and voltage. RMS value is given by dividing the peak value of a signal (voltage for example) by the square root of 2.

2021年8月24日 · The idea, if I understand correctly, is that the sine wave filter smoothes the output, eliminating the spikes at the edges of the PWM pulses. I'm installing a variable frequency drive in a setting where I have a very well insulated short length of cable. The specifications in the VFD manual do not suggest I am close to needing a sine wave filter.

2018年5月23日 · A sine wave is a repetitive change or motion which, when plotted as a graph, has the same shape as the sine function. A quote more directed to electronics: The electrical power in your house is AC or Alternating Current.

2012年3月20日 · The average value would be equal to zero as the positive and negative halves will cancel each other out if the average value is calculated over the full cycle in a pure sine wave. In the image below, the average or mean value of an AC waveform is calculated or measured over a half cycle.

2015年2月5日 · \$\begingroup\$ @Random832 No, sine wave input to a passive R-C-L network always gives sine wave output (attenuated & phase shifted by a different amount depending on frequency.) To see why, see the mechanical resonance shown in Andy Aka's answer, of which electrical resonance is a direct analogue.

2018年2月17日 · Just model the circuit with with highest and lowest loads and see what happens to the shape of the sine wave and its amplitude. I'd consider starting with L = 10 mH and C = 3.3 uF (876 Hz) with a little series resistance with the inductor to avoid Q factor rising too high on low output currents.

2019年7月3日 · Cosine is basically sine with a phase. phase of 180° will completely invert your signal. DC Offset adds a DC level to your sine wave signal e.g. 1V DC Offset means your sine wave will "oscillate" around 1V rather than 0V. Frequency is the number of cycles the sine wave will complete in a second. Tdelay adds delay before starting the source.

2021年10月22日 · If you need a user-defined source (i.e. not a normal sine source) in the future, you can also insert a VPWL_FILE from the library and have it point to the text file. You can write a program that creates a text file and writes a few values …

2017年3月27日 · A cosine and sine wave are essentially phase-shifted versions of one another. For instance, \begin{equation*} cos(x+\phi) = sin(x+\phi-90) = sin(x+\theta) \end{equation*} where \begin{equation*} \theta = \phi-90 \end{equation*} Hence, a cosine and sine wave are essentially the same, and what differentiates their use is the value of the initial ...

2012年5月21日 · Actually, you can make a sine wave that has different frequency than the orginal - just use a bandpass filter to pass the harmonic you want. You can use this to get a sine wave of a frequency that is a multiple of the frequency of another sine - just distort the original sine and pick out the harmonic you want. RF systems have to put out ...