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I saw OP used 15624 so I used that, but yes frequency is not 1 Hz. I also completely omitted 0.125 Hz and button presses. My idea was to give a working example regarding timer settings.
Another thread just inspired to make a sketch using ATMEGA328 timers. I assume it's Arduino UNO and clock frequency is 16 Mhz. The highest clock divider is 1024 which makes it easy to make 1 Hz without sw variables so I made an example of that. This code was tested with Arduino Duemilanove and I...
I made rectified half wave PWM with 8-bit Arduino Duemilanove which has ATMEGA328 microcontroller like Arduino UNO. Samples of positive half wave are repeated. Example of samples which are repeated in order to get rectified sine wave
I used 200 8-bit samples for half wave and 31 kHz PWM...
Even small transformer gives quite nice sinusoidal waveform, if supply voltage is not too high. Of course the waveform it's not like in signal generator. I have used 6VA 230/9 VAC transformer in mains voltage monitor hobby project. Transformer started to saturate above ~250 VAC.
Usually utility...
Voltage regulation in Finland seems to be similar to German electric network. Voltage regulation information is not so easy to find, but google found several finnish language student thesis and I collected following information from those. Base distribution network is at 110kV level and local...
The modules I can see on Ebay/Amazon seem all be the same, and I think there are positions to solder jumpers to set deadtime. See the attached image. Desoldering jumpers JP7 and JP8 and soldering JP3 and JP4 should change deadtime to 1,5us, but this is just based on the image on Ebay and the...
What is the deadtime setting? According to EGS002 manual, default deadtime is 300ns. Deadtime can be set with solderable jumpers to 1,5us, which would be better for IGBT.
Some examples, IP66 or close.
https://www.kepcopower.com/khx.htm
Https://www.kepcopower.com/1461984-r5.pdf
https://absopulse.com/ip66-rated-power-solutions/
24 VDC power supplies are common in industrial equipment. To my experience, they are typically without cooling fan. Here are several examples. I didn't check the details, if they are all without cooling fan. 20 A makes about 500 W and 40 A about 1000W...
I understood that serial communication is working, but modbus protocol is a problem. The problem seems to be uart serial on Orange Pi hardware pins. There are several different Orange Pi boards and several operation systems available.
pyA20, https://pypi.org/project/pyA20/ is for Olimex board...
I think your simulation is correct. I wrote earlier on another thread, that there is a current increase, but decreasing current makes more sense. There is also practical reasoning for this besides simulation. Induction motor starting current on direct-on-line start is 5-7 times nominal current...
Perhaps the capacitor voltage floats when referred to earth potential. I made an illustration (illustration is modified from image shown here https://www.electronics-tutorials.ws/diode/diode_6.html).
Red color show the situation during positive peak and blue color is for negative peak.
How...
Re: Help me to understand concept of motor acceleration by vfd
I think it says, that the resolution of acceleration time setting is 10 ms. You could set 10,00 seconds or you can set 10,01 seconds acceleration time. 10 ms resolution is good. Even 1 second resolution would be good enough for most...
If the generator supplies 50 Hz sinusoidal voltage, then 2500 m is a very short cable. It is not possible to have standing waves. Speed of light is 300 km/s which means wavelength of 50 Hz is 6000 km. Difference to 2,5 km is so big, that it is not necessary take account velocity factor of the cable.
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