patents.google.com
9/10/2019
CN209375184U - Earphone charging box - Google Patents
The utility model discloses a kind of earphone charging box, including MCU, rechargeable battery, charge controller, DC-DC converter, charging interface and output interface；The charging interface connects charge controller, and the charge controller connects rechargeable battery, and the rechargeable battery connects DC-DC converter, and the DC-DC converter connects output interface, and the output interface is used to connect the headset batteries of charging earphone；The MCU is separately connected rechargeable battery, DC-DC converter and output interface, the MCU is connect by output interface with headset batteries, when the MCU detects that output interface is connect with headset batteries, test earphone battery and rechargeable battery voltage, DC-DC converter is opened, and the voltage for controlling DC-DC converter adjusting rechargeable battery charges to headset batteries.Technical solutions of the utility model can effectively improve the efficiency that earphone charging box charges to earphone.