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Slavko (@eslavko)


Re: Get RMS value from Pulse Density Modulated signal

Reply posted 4 years ago (03/30/2020)
The table does low pass filtering and decimation! and for precission required I need at least 14 bits if I'm correct.Y(14bit)= lookup( Y(14bit):X(8bit) )So I take...

Re: Get RMS value from Pulse Density Modulated signal

Reply posted 4 years ago (03/30/2020)
Hello..As you said I want to eliminate analog stuff as I can capture data digitally. As I say I can receive data synchronous and that part work's well. I was tried...

Re: Get RMS value from Pulse Density Modulated signal

Reply posted 4 years ago (03/29/2020)
I take 1MHz sampling rate as the modulator running in that frequency, and I can got the clock line too so I do synchronous sampling. (the data and clock are transmitted...

Re: Get RMS value from Pulse Density Modulated signal

Reply posted 4 years ago (03/28/2020)
Hello...I try to clarify a little bit.I have 50Hz (distorted sine) signal that are converted to delta sigma signal at 1MHz bit clock. The digital data is passed...

Re: Get RMS value from Pulse Density Modulated signal

Reply posted 4 years ago (03/27/2020)
It's not voltage analyzer. I only capture data from other circuit and need to measure voltage to do some callibartion process.I do have old board with just RC filter...

Re: Get RMS value from Pulse Density Modulated signal

Reply posted 4 years ago (03/27/2020)
The sampling is at 1MHz. And I wish to average 5 periods of 50Hz. So I should got result every 100ms. 
Hello...I need to measure voltage (RMS) from incoming PDM (Pulse Density Modulation) data.The voltage is actually 50Hz line voltage distorted sine.For test I do...

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