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university:courses:electronics:comms-lab-polyphase-filter [27 Mar 2019 12:17]
amiclaus [Procedure:] add ltspice files
university:courses:electronics:comms-lab-polyphase-filter [23 Aug 2019 15:13] (current)
amiclaus
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 Turn on the power supplies. Connect scope input channel 2 through an AC coupling capacitor ( C<​sub>​4</​sub>​ in figure 3 ) alternately to each of the four possible outputs at the ends of resistors R<​sub>​1</​sub>,​ R<​sub>​2</​sub>,​ R<​sub>​3</​sub>​ and R<​sub>​4</​sub>​. Run a single frequency sweep and store each sweep in a waveform snapshot to compare each output'​s relative gain and phase response. Be sure to export all the frequency sweep data to a .csv file for further analysis in either Excel or Matlab. Turn on the power supplies. Connect scope input channel 2 through an AC coupling capacitor ( C<​sub>​4</​sub>​ in figure 3 ) alternately to each of the four possible outputs at the ends of resistors R<​sub>​1</​sub>,​ R<​sub>​2</​sub>,​ R<​sub>​3</​sub>​ and R<​sub>​4</​sub>​. Run a single frequency sweep and store each sweep in a waveform snapshot to compare each output'​s relative gain and phase response. Be sure to export all the frequency sweep data to a .csv file for further analysis in either Excel or Matlab.
  
-Using the scope and function generator software instruments ( in the time domain ) set the AWG frequency to the resonate frequency with the amplitude set to 1V. Trigger on scope channel 1. Observe the relative amplitudes and phases of the four outputs and store each waveform on channel 2 as a reference channel to compare the amplitude and phase of each output.+Using the scope and function generator software instruments ( in the time domain ) set the AWG frequency to the resonate frequency with the amplitude set to 1V peak-to-peak. Trigger on scope channel 1. Observe the relative amplitudes and phases of the four outputs and store each waveform on channel 2 as a reference channel to compare the amplitude and phase of each output.
 {{ :​university:​courses:​electronics:​appf_nf7.png?​500 |}} {{ :​university:​courses:​electronics:​appf_nf7.png?​500 |}}
  
university/courses/electronics/comms-lab-polyphase-filter.txt · Last modified: 23 Aug 2019 15:13 by amiclaus