Switching power amplifier and method for controlling the switching power amplifier
AssigneeMediatek Inc.
InventorsYang-Chuan Chen, Hsiang-Hui Chang
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Abstract
A switching power amplifier includes: a first transistor controlled by a first digital signal to selectively output a first output signal; a second transistor controlled by a second digital signal to selectively output a second output signal; and a control circuit arranged to generate the second digital signal according to the first digital signal and a third digital signal; wherein the first output signal and the second output signal are outputted on a common connected node of the first transistor and the second transistor.
Claims20
A switching power amplifier, comprising:
- a first transistor, controlled by a first digital signal to selectively output a first output signal;
- a second transistor, controlled by a second digital signal to selectively output a second output signal;
- and
- a control circuit, arranged to generate the second digital signal according to the first digital signal and a third digital signal;
- wherein the first output signal and the second output signal are outputted on a common connected node of the first transistor and the second transistor.
A method for controlling a switching power amplifier, wherein the switching power amplifier comprising a first transistor and a second transistor, and the method comprises:
- controlling the first transistor to selectively output a first output signal by a first digital signal;
- controlling the second transistor to selectively output a second output signal by a second digital signal;
- and
- generating the second digital signal according to the first digital signal and a third digital signal;
- wherein the first output signal and the second output signal are outputted on a common connected node of the first transistor and the second transistor.
Dependencies are inferred from the claim text.