How to plot transfer chara of clamper circuits using TINA TI?

Hello Poomima,   

Thank you for your inquiry about TINA.  Since TINA is a DesignSoft/TINA program, questions are handled by using the DesignSoft support page: http://www.tina.com/technical-support/  . 

The DesignSoft/TINA team is very helpful and this is the most direct way for TINA support.  Please advise by Reply when the issue has been resolved.    

Regards, 

~Leonard  

Hi Poornima,

can you describe your issue in more than four words, please?

What about showing us your TSC-file?

Kai

I have shared the file. Here I have connected a negative clamper circuit and gave a sine wave as input. The expected output is a dc shifted version of the input sine wave, shifted downwards. Inorder to view the transfer characteristics (output voltage vs input voltage), I selected the Analysis -> DC analysis -> DC transfer characteristics. Instead of the expected linear and dc shifted graph, I got a dc output equal to the sum of the diode drop and bias voltage. It would be helpful if someone could find what went wrong. 

Hi Poornima,

as long as the cap is present in your circuit, the only DC current path comes from the bias voltage. So the "DC transfer characteristic" TINA-TI shows is correct 

poornima_clamper.TSC

Kai

In theory, the capacitor quickly charges to the maximum value of the peak voltage, for the positive half of the input & holds this charge in the negative half cycle. This output is level shifted a sine wave. How can I plot the transfer chara between the output ac and the input ac? I need to get a dc shifted linear graph.

Thanks for taking the time to resolve the issue.

Hi Poornima,

you could select the voltage generator as control object and step the amplitude from 0V to 5V:

poornima_clamper_1.TSC

By the way, for sudden changes of input voltage the circuit looks like a short circuit and an destroying current could flow through the diode. So you might want to add a small current limiting resistor?

Kai

Is there any way to view this graph in TINA TI?

This X/Y plot in the transient analysis could do:

poornima_clamper_2.TSC

Kai