Intelligent amplifying circuit for multimedia sound box

智能式多媒体音箱的放大电路

Abstract

本实用新型公开了一种智能式多媒体音箱的放大电路,包括调音电路、功率放大器,其特征在于:还包括音频通带滤波器和定时模块,所述调音电路分别与音频通带滤波器的输出端和功率放大器的输入端连接,所述定时模块的信号输出端与调音电路的信号接收端连接。通过接入一个音频通带滤波器过滤掉射频污染,提高了音质质量;在调音电路上连接一个定时模块,定时控制音量大小,防止影响他人的休息。
The utility model discloses an intelligent amplifying circuit for a multimedia sound box. The intelligent amplifying circuit comprises a toning circuit and a power amplifier. The intelligent amplifying circuit for the multimedia sound box is characterized in that the amplifying circuit further comprises a voice-frequency band-pass filter and a timing module; the toning circuit is respectively connected to an output end of the voice-frequency band-pass filter and an input end of the power amplifier; and a signal output end of the timing module is connected to a signal receiving end of the toning circuit. Radio frequency pollution is filtered by the connected voice-frequency band-pass filter, thereby increasing the tone quality. The timing module is connected to the toning circuit, thereby being capable of controlling the sound volume at regular time and avoiding influencing the rest of other people.

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Cited By (2)

    Publication numberPublication dateAssigneeTitle
    CN-103188584-AJuly 03, 2013比亚迪股份有限公司Acoustic matching method and acoustic matching system for vehicle-mounted multi-media
    CN-103188584-BMarch 30, 2016比亚迪股份有限公司车载多媒体的音响匹配方法和音响匹配系统