Title:
POWER RECEIVING CIRCUIT, EARPHONE, AND EARPHONE ASSEMBLY
Document Type and Number:
WIPO Patent Application WO/2023/130864
Kind Code:
A1
Abstract:
Embodiments of the present application provide a power receiving circuit, which is suitable for being provided on a device to be charged. The device to be charged comprises a battery; the power receiving circuit comprises an output circuit, a voltage regulating circuit, and a controller; the output circuit charges the battery; the voltage regulating circuit has an input end and an output end; the input end is electrically connected to an external power source to receive power; and the output end is electrically connected to the output circuit. The controller is used for acquiring a voltage value of the battery and regulating an output voltage value of the voltage regulating circuit according to the voltage value of the battery, the output voltage value being greater than the voltage value of the battery. The voltage regulating circuit is provided in the device to be charged, the voltage value of the battery is measured, and the voltage regulating circuit is controlled to regulate the output voltage value in real time, such that the output voltage value is always greater than the voltage value of the battery, and the continuous and stable charging process is ensured. Moreover, the voltage difference is reduced, and the energy loss in the charging process is reduced, such that the charging conversion efficiency and the charging efficiency are improved. In addition, the embodiments of the present application further provide an earphone and an earphone assembly.
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Inventors:
YU ZHAGEN (CN)
Application Number:
PCT/CN2022/135491
Publication Date:
July 13, 2023
Filing Date:
November 30, 2022
Export Citation:
Assignee:
GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD (CN)
International Classes:
H02J7/00; H04R1/10
Foreign References:
| CN216959382U | 2022-07-12 | |||
| CN110492554A | 2019-11-22 | |||
| CN214013893U | 2021-08-20 | |||
| CN213367459U | 2021-06-04 | |||
| CN109768606A | 2019-05-17 | |||
| CN111641243A | 2020-09-08 | |||
| US20200127482A1 | 2020-04-23 |
Attorney, Agent or Firm:
SHENZHEN ZHIQUAN INTELLECTUAL PROPERTY OFFICE (CN)
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