Telemetry for a battery operated device

A circuit for a wireless handheld device configured for communicating data with inductive telemetry, comprising:

• a first battery voltage source;
• a controller in parallel with the first battery voltage source;
• a telemetry coil driven by the first battery voltage source and controllable by the controller to transmit and receive data to and from a second device using inductive telemetry;
• and
• a second battery voltage source connected in series with the first voltage source, wherein the first battery voltage source powers the controller and the second voltage battery source drives the telemetry coil.

A method of powering a handheld device configured for communicating data with a second device using inductive telemetry, the handheld device including a controller, a telemetry coil, and a first battery voltage source, the method comprising:

• connecting the controller in parallel with the first battery voltage source;
• connecting the telemetry coil to the controller and driven by the first battery voltage source;
• and
• activating the telemetry coil in the handheld device to facilitate inductive telemetry for transmitting and receiving data to and from the second device,
• wherein the handheld device further includes a second battery voltage source connected in series with the first battery voltage source, wherein the telemetry coil is activated using increased voltage provided by the first and second battery voltage sources in series.

A method of powering a handheld device having a controller, a telemetry coil, and at least one battery providing a battery voltage, the method comprising the steps of:

• powering the controller and the telemetry coil with the battery voltage;
• and
• transmitting and receiving data to and from an implanted device using inductive telemetry,
• wherein the handheld device includes a first battery providing a first battery voltage, and a second battery providing a second battery voltage, the controller being powered by the first battery voltage and the telemetry coil being driven by the second battery voltage and wherein the telemetry coil is driven by a series combination of the first and second battery voltages.

A handheld device configured to communicate data with an implanted device using inductive telemetry, comprising:

• a battery powered controller;
• a battery powered telemetry coil controlled by the controller and configured to transmit and receive data to and from a telemetry coil of the implanted device using inductive telemetry;
• a battery voltage source that powers the controller and the telemetry coil, the battery voltage source adapted to provide a first potential;
• and
• means for adapting the first potential to provide a second potential for use in powering the controller or the telemetry coil,
• wherein the means for adapting the first potential includes a voltage amplifying device adapted to amplify the first potential to provide the second potential to power the telemetry coil.