What is the difference between the terms wave, waveform, and …
2016年6月5日 · A waveform is a representation of physical quantity such as voltage or a current over time. If this physical quantity carries information then it is a signal. In practice, however, the terms signal and waveform are often used synonymously.
What does the US power supply waveform look like?
2016年9月6日 · Here's the full waveform. It's monotonic and the distortions are much less obvious. Note that the voltage here is 122 Vrms with a peak of about 165 V, slightly above the nominal range. Both this and the household mains show a peak voltage that's lower than what we'd expect for a pure sine wave with the measured RMS value. Here's the FFT.
How to produce sawtooth waveform from square waveform?
It seems that I need to make the square waveform into the positive side of the sawtooth waveform. Then, use the same square waveform, give it a 180° phase shift and make it into another positive sawtooth waveform (180° from the first positive sawtooth waveform). Finally, use summing amplifier to combine them into a full positive sawtooth ...
What Does 8 x 20-µs and 10 x 1000-µs Mean in Surge Testing …
2013年4月24日 · standardized transient impulses (or sometimes it's called a waveform). But what does it actually mean. Why is there a multiplier in front of the time unit? The quoted line above is constantly mentioned in surge testing document. But no where in the document does it mention what is the meaning of it. Most Google search results point to Datasheet ...
How do I save a waveform from ModelSim for later opening/viewing
2013年10月1日 · You need to save the waveform/dataset as a .wlf file. To tell Modelsim to capture all signal values in the design you can do a log -r /*. Afterwards you can open up the specific waveform/dataset .wlf either through the GUI or by typing vsim …
waveform - Peak and RMS voltage for a sine wave - Electrical ...
2016年5月26日 · As Peter says the integral looks like a constant plus a sinusoidal waveform (at twice the frequency). Which makes sense if you think about what the power looks like as the voltage changes- it's always positive, hence there must be an offset, and touches zero at …
waveform - Equation for the average power of a signal - Electrical ...
I'm reading the book "Introduction to Electromagnetic Compatibility" by CR Paul, and in Chapter 3, I come across this equation for the average power in the waveform assuming a 50% duty cycle and \$\tau_r\$ = \$\tau_f\$ :
What exactly are harmonics and how do they "appear"?
2012年5月21日 · This is called Fourier analysis (if the original waveform is repeating) or Fourier transform (for any waveform). In case of a repeating waveform (like a square wave), when you do Fourier analysis you find that all the sines that compose the waveform have frequencies that are an integer multiple of the frequency of the original waveform.
How to interpret this NTSC color waveform?
2019年3月21日 · That signal encodes timing, brightness and colour for an entire line of video. It dates from the days of the CRT monitor which used magnetic deflection to scan the raster, hence the rather long horizontal retrace time (Changing currents in coils takes time), there is also a vertical retrace interval and a (rather longer) vertical blanking interval elsewhere in the sequence.
impedance - 50 Ω or high-Z setting on waveform generator?
2023年4月6日 · I have an arbitrary waveform generator that allows me to set the load as 50 Ω or high-Z. This generator is connected to an amplifier that has as input an unbalanced BNC connector, 10 kΩ, single-ended. I need to measure the signal I am sending to this amplifier. My oscilloscope has the classical internal settings for 50 Ω and 1 MΩ.