System and method for electric vehicle wireless charger output protection

A method for switching off a wireless charger output, comprising:

• detecting stray voltage on a powerline generated by AC current induced in the powerline from a stray power source;
• converting the stray voltage on the powerline into a control voltage signal;
• powering a monitoring circuit using the control voltage signal;
• and
• outputting, by the monitoring circuit, a switch control signal to a powerline switch causing the powerline switch to close and divert the AC current induced in the powerline to a ground in response to receiving power from the control voltage signal.

A method for switching off a wireless charger output, comprising:

• rectifying AC current from a powerline into DC current for charging a vehicle battery, the AC current induced in a receive antenna by current in a transmit antenna from an AC power source in a charging base;
• generating a control voltage signal at a sensor circuit using current from the powerline;
• detecting loss of power, at a monitoring circuit, from a low-voltage battery;
• connecting the monitoring circuit to a powerline switch in response to detecting the loss of power from the low-voltage battery;
• and
• outputting, by the monitoring circuit, a switch control signal to the powerline switch causing the powerline switch to close and divert the current in the powerline to a ground in response to receiving power from the control voltage signal.