I am using a bipolar switching driver to drive my transducer so this driver also shares connections with my receiver (which also use the transducer). TO keep the signal within the right common mode range I need to tie on end of the receiver down to ground, but since the driver is doing bipolar switching this creates shorts since the driver just passes all current to this ground. My solution was to use a 1:1 transformer to "re-reference" the signal before it reaches the receiver.
But the echo is a weak signal and I am wondering if transformers at some point are unable to pass signals that are too weak due to magnetizing currents. I have high impedance inputs on the secondary of the transformer, but I am worried about the transformer.
But the echo is a weak signal and I am wondering if transformers at some point are unable to pass signals that are too weak due to magnetizing currents. I have high impedance inputs on the secondary of the transformer, but I am worried about the transformer.