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Push-pull signal power amplification circuit and system

A power amplifier circuit, push-pull signal technology, applied in power amplifiers, push-pull amplifiers, amplifiers, etc., can solve the problems of weak anti-noise interference ability, many circuit devices, unable to meet the sound quality requirements of car audio amplification, and achieve anti-noise Strong interference ability and the effect of improving signal output power

Pending Publication Date: 2022-03-08
智新科技股份有限公司
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AI Technical Summary

Problems solved by technology

[0002] In the field of traditional car audio amplification, it mainly relies on the power amplifier to amplify the signal. The audio signal enters from the pre-amplifier, and is sent to the post-amplification through the tone board and the reverberation of the microphone, and finally sent to the audio through the protection board; while the traditional relying on power The inherent circuit of the amplifier has many circuit components and weak anti-noise interference ability, which cannot meet the sound quality requirements of car audio amplification

Method used

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  • Push-pull signal power amplification circuit and system
  • Push-pull signal power amplification circuit and system
  • Push-pull signal power amplification circuit and system

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Embodiment Construction

[0020] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, but not all of them. Based on the embodiments in the present application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present application.

[0021] see figure 1 with figure 2As shown, the embodiment of the present application provides a push-pull signal power amplifier circuit, including a PWM-MAP push-pull power amplifier circuit 200 and a PWM-MAN push-pull power amplifier circuit 300; the PWM-MAP push-pull power amplifier circuit 200 includes a The first differential co...

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Abstract

The invention relates to a push-pull signal power amplification circuit and system. The push-pull signal power amplification circuit comprises a PWM-MAP push-pull power amplification circuit and a PWM-MAN push-pull power amplification circuit. The PWM-MAP push-pull power amplification circuit comprises a first differential conversion module, a first bootstrap amplification module electrically connected with the first differential conversion module, a first H half-bridge module electrically connected with the first differential conversion module and the first bootstrap amplification module, and a first resistance power amplification module; the PWM-MAN push-pull power amplification circuit comprises a second differential conversion module, a second bootstrap amplification module electrically connected with the second differential conversion module, a second H half-bridge module electrically connected with the second differential conversion module and the second bootstrap amplification module, and a second resistance power amplification module; therefore, the system does not need to depend on an inherent circuit of a traditional power amplifier, power amplification can be carried out on the PWM push-pull signal, the noise interference resistance is high, and the sound quality requirement for amplification of vehicle-mounted audio equipment can be met.

Description

technical field [0001] The present application relates to the technical field of vehicle audio amplification, in particular to a push-pull signal power amplification circuit and system. Background technique [0002] In the field of traditional car audio amplification, it mainly relies on the power amplifier to amplify the signal. The audio signal enters from the pre-amplifier, and is sent to the post-amplification through the tone board and the reverberation of the microphone, and finally sent to the audio through the protection board; while the traditional relying on power The inherent circuit of the amplifier has many circuit components and weak anti-noise interference ability, which cannot meet the sound quality requirements of car audio amplification. Contents of the invention [0003] The embodiment of the present application provides a push-pull signal power amplification circuit and system, which can amplify the power of the PWM push-pull signal without relying on t...

Claims

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Application Information

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IPC IPC(8): H03F1/26H03F3/185H03F3/21H03F3/26H03F3/45
CPCH03F1/26H03F3/185H03F3/21H03F3/45179H03F3/26H03F2200/03H03F2200/372
Inventor 全胜陈昭肖浩周琛单胜军肖婉莹徐刚王闻宇
Owner 智新科技股份有限公司
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