Patent ID: 7782190

Claim:
An implantable medical device, the implantable medical device adapted to receive wireless energy from a charging device, the implantable medical device comprising: an antenna element operable for receiving wireless energy transmitted from the charging device; a switching regulator coupled to the antenna element and having circuitry for enabling operation of the switching regulator during a first predetermined time period and for disabling operation of the switching regulator during a second predetermined time period in response to a switching regulator control signal, the switching regulator operable for receiving and regulating the received wireless energy and outputting a regulated voltage; a rechargeable battery coupled to the switching regulator for receiving current from the switching regulator during the first predetermined time period; and a pulse loading circuit coupled to the antenna element and operable for receiving one or more pulse loading pulses during the second predetermined time period and pulse loading the antenna element in response to the one or more pulse loading pulses, and wherein the pulse loading the antenna element is operable to transmit data to the charging device.