Communications using an inductive coupling

A method for controlling a power switch of a power converter comprising:

• comparing at least a portion of fault signals on a first terminal of a primary winding with a first current threshold, wherein the portion of the fault signals on the first terminal has a first polarity relative to a primary reference potential;
• comparing at least a portion of data signals on the second terminal of the primary winding with a second current threshold, wherein the portion of the data signals on the second terminal has a second polarity relative to the primary reference potential;
• configuring a drive circuit to control the power switch of a power converter, wherein the drive circuit is referenced to a secondary reference potential;
• driving current in a first direction in a secondary winding, wherein the current in the first direction is representative of the fault signals;
• and
• driving current in a second direction in the secondary winding, wherein the current in the second direction is representative of data signals.