Connector Polarity for AC signals

As long as whatever plugs in J1 is wired the right way round (ground to pin 2) it will make no difference - or just fit J1 the other way round.

J1 is connected to a wireless power transfer coil,something like this . As per my knowledge there is no polarity for WPT coils

newbe_always said:

J1 is connected to a wireless power transfer coil,something like this . As per my knowledge there is no polarity for WPT coils

Click to expand...

Then it makes no difference, other than if the lead to it was a screened one, then it makes sense to keep the screens joined together.

Thank you.Below is the Pictorial representation

newbe_always said:

Thank you.Below is the Pictorial representation
View attachment 148083

Click to expand...

Hi,

You cannot detect the phase of a single AC signal if it is a pure sine wave or it is half wave symmetrical. You have to have a reference phase to compare with it, which you do not have. This means the Rx will never know if the phase is one way or another.

If you had a marker generator you could place a mark at the start of zero degrees on the sine and then look for that marker on the Rx side, and could tell you the phase referenced to that mark. I'm not sure if anyone does this anymore though, and it does not matter in this application anyway unless you are just curious.
If the signal got inverted, then you would see the marker at 180 degrees on the Rx side instead of at 0 degrees.

Phase can actually matter a lot when you have more than one phase, but that's not the case here anyway.

There is a possibility of getting the phase wrong on one side though if your circuit includes a shield of some kind. You want to keep the signal line the same on both sides. That can also be important.