tauquir_iqbal Posted July 25, 2019 Share Posted July 25, 2019 I want to achieve control to output transfer function. lets say V(s)/d(s)=A(s). by some variation in d(s) i.e. control what is the gain and phase of the voltage i.e. output. Link to comment Share on other sites More sharing options...
jpeyron Posted July 25, 2019 Share Posted July 25, 2019 Hi @tauquir_iqbal, I moved this thread to a section where more experience Network Analyzer/Waveforms engineers look. best regards, Jon Link to comment Share on other sites More sharing options...
attila Posted July 26, 2019 Share Posted July 26, 2019 Hi @tauquir_iqbal In the Network Analyzer you can select constant Amplitude, adjust based on frequency Table or using Custom script. In the Impedance Analyzer you can select Custom Amplitude adjustment and Reference resistor selection, based on step and measurements. Link to comment Share on other sites More sharing options...
tauquir_iqbal Posted July 26, 2019 Author Share Posted July 26, 2019 Thanks you so much for your kind reply. the problem i have is i am using DSP . i will elaborate full details about my requirement. normally the perturbation is connected to the signal generator and oscilloscope 1. while the response is connected to oscilloscope 2.? so that the output to input plot can be achieved. like in the diagram. signal generator and oscilloscope is connected to V1 while the oscilloscope 2 is connected to output. Now coming to my problem i use Matlab to generate PWM. the matlab generate and load pwm in the GPIO of the DSP. the output voltage can be fed to the generator 2 (with sensor gain to make in in the range of the DSP. ) Therefore, i am confused where should i connect signal generator and oscilloscope 1 . Link to comment Share on other sites More sharing options...
tauquir_iqbal Posted July 26, 2019 Author Share Posted July 26, 2019 for my case, its Dual Active bridge which has 8 switches and uses phase shift as a control variable. thereof, i am confused where to put the singal generator and oscilloscope 1. The PWM waveform and control variables are Link to comment Share on other sites More sharing options...
tauquir_iqbal Posted October 27, 2019 Author Share Posted October 27, 2019 Still waiting for my answer Link to comment Share on other sites More sharing options...
attila Posted October 28, 2019 Share Posted October 28, 2019 Hi @tauquir_iqbal The signal generator and oscilloscope 1 should be connected to Vi and the oscilloscope 2 to the Vo. Note that the AWG/Wavegen of AD2 can drive 10-50mA and you have to set offset for the Wavegen in the Network Analyzer to have only positive input signal. Link to comment Share on other sites More sharing options...
tauquir_iqbal Posted December 2, 2019 Author Share Posted December 2, 2019 The control signal is phase shift between the bridges and output voltage is desired output. therefore, i need to get perturbation of phase shift to output voltage. where can i connect the oscilloscope 1. Link to comment Share on other sites More sharing options...
tauquir_iqbal Posted December 2, 2019 Author Share Posted December 2, 2019 One of the people used and they gave me this block diagram but they didn't explain to do the actual experiment which i am attaching here . Link to comment Share on other sites More sharing options...
tauquir_iqbal Posted January 25, 2020 Author Share Posted January 25, 2020 Thanks Link to comment Share on other sites More sharing options...
tauquir_iqbal Posted January 27, 2020 Author Share Posted January 27, 2020 On 10/28/2019 at 10:40 PM, attila said: Hi @tauquir_iqbal The signal generator and oscilloscope 1 should be connected to Vi and the oscilloscope 2 to the Vo. Note that the AWG/Wavegen of AD2 can drive 10-50mA and you have to set offset for the Wavegen in the Network Analyzer to have only positive input signal. @attila How can i achieve bode as the AD cannot take the negative voltage. although i did use offset and level shifted the disturbances through waveform generator. but i cannot do next. Link to comment Share on other sites More sharing options...
attila Posted January 28, 2020 Share Posted January 28, 2020 Hi @tauquir_iqbal You can use the time and fft view to see the raw and processed signals, in order to adjust the offset/amplitude correctly for the channels. Link to comment Share on other sites More sharing options...
tauquir_iqbal Posted February 14, 2020 Author Share Posted February 14, 2020 @attila Thanks for your all help. i could do all i wanted. however can you suggest what should i do to get accurate results at higher frequency and how much can discovery 2 can work with low error ? At higher frequency more than 5 kHz its become too noisy so what should i do. what kind of cable you recommend or anything you can suggest or documentation. i try to use BNC adapter and coaxial wire. Link to comment Share on other sites More sharing options...
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tauquir_iqbal
I want to achieve control to output transfer function. lets say V(s)/d(s)=A(s).
by some variation in d(s) i.e. control what is the gain and phase of the voltage i.e. output.
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