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Control circuit, control method and device of radio frequency power amplifier circuit and electronic equipment

A technology of radio frequency power amplifier circuit and voltage control circuit, which is applied in the field of electronic equipment, control device of radio frequency power amplifier circuit and control circuit of radio frequency power amplifier circuit, can solve problems such as linear distortion and performance degradation of electronic equipment, so as to improve linearity and improve Signal quality, the effect of reducing performance degradation

Pending Publication Date: 2021-08-31
VIVO MOBILE COMM CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] The purpose of the embodiment of the present application is to provide a control circuit for a radio frequency power amplifier circuit, a control method for a radio frequency power amplifier circuit, a control device for a radio frequency power amplifier circuit, and electronic equipment, which can solve the problems caused by the linear distortion of the radio frequency power amplifier circuit in the related art. falling problem

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  • Control circuit, control method and device of radio frequency power amplifier circuit and electronic equipment
  • Control circuit, control method and device of radio frequency power amplifier circuit and electronic equipment
  • Control circuit, control method and device of radio frequency power amplifier circuit and electronic equipment

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Embodiment Construction

[0031] The following will clearly describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of them. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in this application belong to the protection scope of this application.

[0032] The terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the application can be practiced in sequences other than those illustrated or described herein. In addition, "and / or" in the specification and claims means at least one of the conn...

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Abstract

The invention discloses a control circuit, control method and device of a radio frequency power amplifier circuit and electronic equipment, and belongs to the technical field of circuits. The control circuit of the radio frequency power amplifier circuit comprises an envelope circuit, wherein the output end of the envelope circuit is connected with the power supply end of the radio frequency power amplifier circuit; a voltage control circuit, of which the input end is connected with the output end of the radio frequency power amplifier circuit, and the output end is connected with the control end of the envelope circuit; wherein the voltage control circuit is used for determining the adjacent channel power of the radio frequency power amplifier circuit or the signal quality value of the radio frequency power amplifier circuit according to the output signal of the radio frequency power amplifier circuit, and controlling the amplification gain of the envelope circuit according to the adjacent channel power or the signal quality value so as to adjust the power supply voltage of the power supply end of the radio frequency power amplifier circuit.

Description

technical field [0001] The application belongs to the field of circuit technology, and in particular relates to a control circuit for a radio frequency power amplifier circuit, a control method for a radio frequency power amplifier circuit, a control device for a radio frequency power amplifier circuit, and electronic equipment. Background technique [0002] The efficiency of the RF power amplifier (Power Amplifier, PA) is inversely proportional to the power supply voltage of the PA. The lower the power supply voltage is, the higher the efficiency will be. However, the reduction of the power supply voltage will lead to a decrease in the maximum output power and linearity of the PA. Performance requirements require dynamic control of the power supply voltage of the PA. In related technologies, an envelope tracking (EnvelopTracking, ET) method is used to control the PA voltage. Specifically, a higher voltage is set at a high power point, and a lower voltage is set at a low pow...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03F3/20H03F3/189
CPCH03F3/20H03F3/189
Inventor 宫守伟
Owner VIVO MOBILE COMM CO LTD
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