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Double-stage inversing D-class power amplifying circuit and radio frequency power amplifier

A technology of power amplification circuit and amplifier, which is applied in the field of radio frequency communication, can solve the problems of complicated simulation and debugging, low power gain of single-stage power amplifier, low working efficiency and low output power, etc., so as to reduce redundant work, reduce design difficulty and improve design efficiency Effect

Active Publication Date: 2015-09-30
CHINA COMM MICROELECTRONICS TECH CO LTD +1
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Problems solved by technology

[0006] The purpose of the embodiments of the present invention is to provide a two-stage inverse class-D power amplifier circuit, aiming to solve the problems of low power gain, working efficiency and output The problem of low power and cumbersome simulation debugging

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  • Double-stage inversing D-class power amplifying circuit and radio frequency power amplifier

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Embodiment Construction

[0021] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0022] The embodiment of the present invention utilizes the push-pull structure of Class F to drive the reverse Class F, improves the efficiency, power and gain of the power amplifier through harmonic shaping technology, and realizes independent control from the fundamental wave to the third harmonic impedance, reducing the difficulty of design, The tedious work of later debugging is reduced, an...

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Abstract

The invention is suitable for the field of radio frequency communication, and provides a double-stage inversing D-class power amplifying circuit and a radio frequency power amplifier. The circuit comprises an input passive component connected with a block condenser, a positive and negative double-way driving-stage F-class amplifier, a positive and negative double-way amplifying-stage inversing F-class amplifier and an output passive component, wherein the two input ends of the positive and negative double-way driving-stage F-class amplifier are connected with the two output ends of the input passive component through two block coupling condensers, the two input ends of the positive and negative double-way amplifying-stage inversing F-class amplifier are connected with the two output ends of the positive and negative double-way driving-stage F-class amplifier through two condensers, and the two input ends of the output passive component are connected with the two output ends of the positive and negative double-way amplifying-stage inversing F-class amplifier through the two condensers. By utilizing an F-class driving inversing F-class push-pull structure, according to the harmonic shaping technology, the efficiency, the power and the gain of the power amplifier are improved, the independent control from a fundamental wave to a triple frequency harmonic impedance is achieved, the design difficulty is lowered, and the tedious debugging work in the later period is lowered. In addition, due to the positive and negative double-way structural design, the power and the gain are further improved.

Description

technical field [0001] The invention belongs to the field of radio frequency communication, and in particular relates to a two-stage inverse class D power amplifying circuit and a radio frequency power amplifier. Background technique [0002] The rapid development of the wireless communication industry has made people's lives more and more convenient, which has led to the wireless communication system becoming an indispensable part of people. The continuous advancement of communication technology and the continuous strengthening of human environmental protection awareness make energy saving and emission reduction a key content that must be considered in the development of today's communication systems. As the most energy-consuming RF power amplifier in the wireless communication system, more than 85% of the power is consumed in the transceiver equipment, so how to improve the efficiency of the power amplifier has become the core of energy saving and emission reduction; at th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03F1/02H03F3/217H03F3/189
CPCH03F3/189H03F3/217
Inventor 吴光胜马建国邬海峰成千福朱守奎
Owner CHINA COMM MICROELECTRONICS TECH CO LTD
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