Title:
PERIPHERAL CIRCUIT OF BLUETOOTH HEADSET BATTERY
Document Type and Number:
WIPO Patent Application WO/2019/000865
Kind Code:
A1
Abstract:
Provided is a peripheral circuit of a Bluetooth headset battery, comprising a power supply, a charging chip, two filter circuits, and two batteries correspondingly connected to the two filter circuits respectively, wherein the filter circuits carry out filtering on a power supply accessing a corresponding battery, so as to filter out a random signal in the filter circuits, thereby improving the stability of radio-frequency signal transmission of a Bluetooth headset; and at the same time, a first voltage measurement module, a second voltage measurement module and a third voltage measurement module are provided to respectively measure values of voltages output after passing through voltage value charging chips of the two batteries, and according to the voltage values measured by the first voltage measurement module, the second voltage measurement module and the third voltage measurement module, whether a short circuit occurs in the two batteries is determined, so as to effectively detect the problems of a short circuit and an open circuit of the batteries or a reversal connection of positive and negative electrode lines of the batteries in the Bluetooth headset.
Inventors:
LU YONGJIANG (CN)
CHEN HAILONG (CN)
CAO XINFANG (CN)
CHEN HAILONG (CN)
CAO XINFANG (CN)
Application Number:
PCT/CN2017/117483
Publication Date:
January 03, 2019
Filing Date:
December 20, 2017
Export Citation:
Assignee:
GOERTEK INC (CN)
International Classes:
H02J7/00
Foreign References:
| CN107171396A | 2017-09-15 | |||
| CN206117963U | 2017-04-19 | |||
| CN103138243A | 2013-06-05 | |||
| CN203278349U | 2013-11-06 | |||
| US20150256010A1 | 2015-09-10 |
Attorney, Agent or Firm:
BEIJING GRANDER IP LAW FIRM (CN)
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