Power amplification device and method
AssigneeSamsung Electronics Co., Ltd.
InventorDong-Il Yang
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Abstract
Various embodiments of the present invention relate to a power amplification device and method, wherein the power amplification device can comprise: a power amplifier; a switch mode converter for controlling a bias of the power amplifier; a comparator for providing a switching signal to the switch mode converter according to an envelope signal; and a control unit for determining whether a switching frequency of the switch mode converter is within a specific band and applying an offset to the switching frequency so as to deviate from the specific band if the switching frequency of the switch mode converter is within the specific band. Various other embodiments can be carried out.
Claims15
A method for operating an electronic device comprising:
- providing, by a comparator of an envelope tracking modulator of the electronic device, to a switch mode converter of the envelope tracking modulator, a switch control signal generated based on an envelope signal associated with a signal inputted to a power amplifier of the electronic device;
- determining, by a controller of the envelope tracking modulator of the electronic device, that a frequency of the switch control signal is included in a reception band on which a signal is received from an external electronic device;
- changing, by the controller, the frequency of the switch control signal such that the frequency of the switch control signal is not included in the reception band;
- and
- providing, by the switch mode converter, bias voltage or bias current generated based on the changed frequency to the power amplifier.
An electronic device comprising:
- an envelope tracking modulator comprising a comparator, a controller, and a switch mode converter;
- and
- a power amplifier;
- wherein the comparator is configured to provide, to the switch mode converter, a switch control signal generated based on an envelope signal associated with a signal inputted to the power amplifier,
- wherein the switch control signal is used for controlling an operation of the switch mode converter,
- wherein the controller is configured to:
- determine that a frequency of the switch control signal is included in a reception band on which a signal is received from an external electronic device, and
- change the frequency of the switch control signal such that the frequency of the switch control signal is not included in the reception band, and
- wherein the switch mode converter is configured to provide bias voltage or bias current generated based on the changed frequency to the power amplifier.
Dependencies are inferred from the claim text.