Interphone mainboard circuit with fast charging and noise reduction module

• Main Author: CHEN XUNLONG
• Format: Patent
• Language: Chinese; English
• Published: 23.06.2023
• Subjects: ACOUSTICS; ACOUSTICS NOT OTHERWISE PROVIDED FOR; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; MUSICAL INSTRUMENTS; PHYSICS; SOUND-PRODUCING DEVICES; TRANSMISSION

The utility model discloses an interphone mainboard circuit with a fast charging and noise reduction module, and the technical scheme is that the interphone mainboard circuit comprises a fast charging module which comprises a main charging circuit and an auxiliary charging circuit and is used for realizing fast charging; and the noise reduction module comprises an audio identification chip and a noise reduction processing chip so as to realize transmission of the audio information subjected to noise reduction processing. The main power supply is electrically connected with the main control chip, the main power supply is electrically connected with the fast charging module and the noise reduction module, and the main control chip is in communication connection with the fast charging module and the noise reduction module. The charging efficiency of the fast charging module is effectively prevented from being influenced by overlarge charging current; by adding the noise reduction module in the mainboard circuit,