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I think Arduino would the best way to go. For beginners it has a got many libraries and an easy development environment. As you get more experience there is possibility of using Ardiuno using Low Level Languages to achieve anything you want!! Best thing about Arduino is Rapid Development
measure time between zero crossings of voltage and current using a zero crossing detector. The output from zero crossing detector can be used trigger interrupts in 8051
I am trying to code the Hysteresis Band PWM Controller in the ATMEL microprocessor to generate the gating signals for MOSFET. Please give some directions to implement this
well the main difficulty i am facing is performing FFT on microcontrollers with there limited memory and processing powers!!! Meanwhile i am trying to design a microcontroller based STATCOM device using the Hysteresis Band PWM Controller. The topics are quite related. I would be glad to discuss...
Can I use a Notch Filter to remove the fundamental component from a current pattern of a non linear load so that I am left only with the harmonics current??
The signal is actually the current consumed by a non linear load which is being fed by a generator operating at 50Hz. So i need to remove the 50Hz signal from the current pattern of the non linear load, so that i can used the "50Hz free" signal to reproduce all the harmonic currents locally...
Yes in fact the fundamental frequency is constant at 50Hz. Could you give me some more details about PLL using the above mentioned ICs. Preferably some link where this has been implemented that you may know..
Are there any ICs available which I can use to extract the fundamental frequency signal from a random signal. I know the frequency of the signal i have to extract.
If not what other methods can i use to extract the fundamental component from a signal?? Maybe microcontrollers??
by band pass filter do u mean builiding a fitler with opamps??
would such a filter be accurate enough to extract 50hz signal while rejecting all the harmonics?
and i couldnt understand what u mean by an analog pre-filter
thank u for the reply!! yes i am only concerned with the mains signal ... i have read about the goertzel algorithm. can u give me some ideas on implementing it in
atmega16 microcontroller?
is there any other ways i can extract the fundamental component without using microcontrollers?
I am doing a project called ACTIVE POWER FILTER and I have to identify the fundamental frequency component of a signal using Atmega16. Now i believe I have two use DFT or FFT to extract the fundamental frequency component from a signal. But I am having a hard time implementing this on ATmega16...
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