I would like to know some hw did bode plot was plot for L5973d switching power supply module. I would like to know if i could calculate the Fc and phase margin using tranfesr func given in the data sheet
The values are explained in this datasheet in the section on compensation. Either matlab, mathcad, or even a TI calculator can plot the gain/phase once you have the transfer function.
What is your goal? Do you want to change the loop values and re-calculate gain/phase, or just to check how close their calculations are to the plots given in the datasheet?
I was trying to check the 3dB BW and gain BW product from hand calculation vs simulation. The reuslts varies greatly. My amplifier is a normal 7 transistor differential amplifier. is there any program I can used to confirm my calculation. I want to determine the loop BW and the phase margin. And also to determine the dominant pole.