A voltage modulation circuit of a charging communication multiplex port and a TWS earphone
By introducing a voltage modulation circuit into the TWS earphone system, and using a modulation signal generator and a voltage rate controller to modulate the output signal of the voltage converter, the problem of unstable communication between the charging case and the earphones in the prior art is solved, and stable communication control from the charging case to the earphones is realized, simplifying the circuit structure and improving the stability of the system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2022-08-02
- Publication Date
- 2026-06-26
AI Technical Summary
In existing TWS charging case-earphone charging systems, the charging chip circuit only has a charging function, resulting in a complex and unstable circuit structure that cannot achieve stable communication and control between the charging case and the earphones.
The voltage modulation circuit using a charging communication multiplex port includes a modulation signal generator, a voltage rate controller, a voltage converter, a serial communication switch, and a discharge switch. The modulation signal generator modulates the output signal of the voltage converter in terms of voltage and frequency, enabling customized communication control from the charging case to the earphones.
The method of implementing commands from the charging case to the earphones has been simplified, the system's working stability has been improved, and the communication connection between the charging case and the earphones has been achieved without affecting charging.
Smart Images
Figure CN122284753A_ABST