Audio signal automatic switching circuit and sound equipment

The utility model discloses an audio signal automatic switching circuit and sound equipment, and relates to the technical field of audio circuits, the input end of an audio signal coupling circuit is used for inputting a constant voltage signal, and the output end of the audio signal coupling circui...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	CHEN DONGPING, ZENG JIAZHEN, WANG HAIBO, ZHU SHICHUANG, HUANG HUAJUN, LIU YING, HUANG LINA
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS PUBLIC ADDRESS SYSTEMS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The utility model discloses an audio signal automatic switching circuit and sound equipment, and relates to the technical field of audio circuits, the input end of an audio signal coupling circuit is used for inputting a constant voltage signal, and the output end of the audio signal coupling circuit is connected with the input end of a control chip; an audio signal output end of the control chip is connected with an input end of the power amplifier circuit, a control signal output end of the control chip is connected with a control signal input end of the signal switching circuit, and an output end of the power amplifier circuit is connected with a first signal input end of the signal switching circuit; the input end of the audio transformer is used for inputting the constant voltage signal, and the output end of the audio transformer is connected with the second signal input end of the signal switching circuit; the constant voltage signal input channel can be automatically switched under the condition that