I have the following schematic:
RB3 is connected to PIC microcontroller digital output. I am wondering is it possible to know from the output voltage waveform is this pulse transformer in saturation.
2V/div - 500us/div
Blue signal is from the PIC and the purple one is output from one of the pulse transformer's secondary windings. On the first image, the PIC's signal is 50us wide. On the second image, PIC's signal is 500us wide and it can be seen that the pulse transformer stopped responding to the voltage on primary coil.
Are these images enough to say that this pulse transformer is in saturation? Unfortunately I don't have any datasheet for transformer, it's very old and manufactured by VAC.