Wireless charger circuit and method

In a charging system for a mobile device including a transmitter and a receiver, the receiver comprising:

• a first interface having a first terminal and a second terminal;
• a second interface having a first terminal and a second terminal coupled to a device to be charged;
• a connection circuit between the first terminal of the first interface and the first terminal of the second interface, wherein the connection circuit is conductive when the voltage across the first terminal of the first interface and the second terminal of the first interface is of a first polarity, and the connection circuit is non-conductive when the voltage across the first terminal of the first interface and the second terminal of the first interface is of a second polarity opposite the first polarity.

In a charging system for a mobile device including a transmitter and a receiver, the method for a receiver comprising:

• providing a first interface having a first terminal and a second terminal;
• providing a second interface having a first terminal and a second terminal coupled to a device to be charged;
• providing a connection circuit between the first terminal of the first interface and the first terminal of the second interface, wherein the connection circuit is conductive when the voltage across the first terminal of the first interface and the second terminal of the first interface is of a first polarity, and the connection circuit is non-conductive when the voltage across the first terminal of the first interface and the second terminal of the first interface is of a second polarity opposite the first polarity.