Power amplification apparatus using switching structure in a wireless communication system and method for controlling the same
AssigneeSamsung Electronics Co., Ltd.
InventorsJong-Sung Lee, Jin-Sung Kim
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Abstract
A power amplification apparatus includes a carrier amplifier and a peaking amplifier. In the apparatus, a detection and comparison controller detects an envelope signal from an input signal, compares a value of the envelope signal with a threshold, and generates a control signal corresponding to a threshold power. At least one switch performs a switching operation for turning on/off the peaking amplifier according to the control signal.
Claims20
A power amplification apparatus in a wireless communication system, comprising:
- a carrier amplifier;
- a peaking amplifier;
- a detection and comparison controller for detecting an envelope signal from a predetermined input signal, comparing a value of the envelope signal with a predetermined threshold, and generating a control signal corresponding to a threshold power;
- at least one switch for turning on and off the peaking amplifier according to the control signal;
- and
- a switch for connecting between the peaking amplifier and a transformer, according to the control signal.
A method for controlling power of a power amplification apparatus including a carrier amplifier and a peaking amplifier in a wireless communication system, the method comprising the steps of:
- detecting an envelope signal from a predetermined input power;
- comparing a value of the envelope signal with a predetermined threshold, and generating a control signal corresponding to a threshold power;
- and
- switching at least one switch for turning on or off the peaking amplifier, and switching a switch for connecting between the peaking amplifier and a transformer, according to the control signal.
Dependencies are inferred from the claim text.