Control voltage adjustment
AssigneeSTMicroelectronics International N.V.
InventorAlexandre Tramoni
Life of this patent
Estimating the term…
Abstract
An electronic device includes a power supply, such as a battery, configured to supply a power supply voltage. The device further includes a controllable voltage converter circuit configured to generate a control voltage based on the power supply voltage. A near-field communication device is included that has at least one antenna configured to emit an electromagnetic field having a power that is controllable by the control voltage. The electronic device further includes a temperature measuring device configured to measure a temperature. The controllable voltage converter circuit is configured to modify a value of the control voltage based on the measured temperature.
Claims20
An electronic device, comprising:
- a battery configured to supply a power supply voltage;
- a controllable boost voltage converter circuit configured to generate, based on the power supply voltage, a control voltage having a value higher than the power supply voltage;
- a near-field communication device comprising at least one antenna configured to emit an electromagnetic field having a power controllable by the control voltage;
- and
- a temperature measuring device configured to measure a temperature of the near-field communication device, wherein the controllable boost voltage converter circuit is configured to modify a value of the control voltage based on the measured temperature;
- and
- wherein the battery, the controllable boost voltage converter circuit, the near-field communication device, and the temperature measuring device are coupled to a common communication bus.
A method, comprising:
- measuring a temperature of a near-field communication device of an electronic device, the electronic device including a battery configured to supply a power supply voltage and a controllable boost voltage converter circuit configured to generate a control voltage having a value higher than the power supply voltage, wherein the battery, the controllable boost voltage converter circuit, the near-field communication device, and a temperature measuring device performing the measuring are coupled to a common communication bus of the electronic device;
- adjusting, by the controllable boost voltage converter circuit, the control voltage based on the measured temperature;
- and
- emitting, by at least one antenna of the near-field communication device, an electromagnetic field having a power controllable by the adjusted control voltage.
A method, comprising:
- supplying, by a battery of an electronic device, a power supply voltage;
- generating, by a controllable boost voltage converter circuit of the electronic device, based on the power supply voltage, a control voltage having a value higher than the power supply voltage;
- emitting, by a near-field communication antenna of a near-field communication device of the electronic device, an electromagnetic field having a power controllable by the control voltage;
- measuring, by a temperature measuring device of the electronic device, a temperature of the near-field communication device of the electronic device;
- and
- modifying, by the controllable boost voltage converter circuit, the control voltage based on the measured temperature, wherein the battery, the controllable boost voltage converter circuit, the near-field communication device, and the temperature measuring device are coupled to a common communication bus of the electronic device.
Dependencies are inferred from the claim text.