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.

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.

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 ...

2017年9月8日 · The standard method for doing this is to calculate or measure the true RMS (root mean square) of the current waveform. If you like, the resultant value gives you the equivalent DC current that would have the same effect. simulate this circuit – Schematic created using CircuitLab. Figure 1. A strange AC waveform. A simple example may help.

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 …

2024年8月26日 · Probing the circuit itself can introduce capacitance and even small inductance, which can cause waveform distortion. On the right side of the crystal, if the signal is being fed into a high-impedance or sensitive input, your oscilloscope probe could be loading the circuit, causing a distorted waveform.

2023年1月31日 · What is the waveform of radio frequencies? I thought they were sinusoidal; am I wrong? I started to wonder about radio frequency waves at the time (two years ago), if they were digital, because all systems are digital, but the problem was that radios were being used in World Wars I and II, and even before. At that time, electronic devices were ...

2022年10月11日 · The voltage seems to be 5V and the signal lines are inverse of each other when I look at lines A and B. However from reading about UART, I assume the waveform would be shorter (1 start bit, up to 8 data bits, 1 parity bits, up to 2 stop bits) than what I'm seeing. As in, there would be maybe up to 12 changes of "state" in the waveform.

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.

2018年4月16日 · That waveform that you have presented looks like what I'd expect for the current through one coil of a stepper motor in action. Nothing weird here. If you know the voltage across Nfa and you want to find the current through Nfa which is the same current that is flowing through the coil that is in series with Nfa.