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Patent Searching and Data


Title:
CHARGING SYSTEM, CHARGING METHOD, AND POWER ADAPTER FOR TERMINAL
Document Type and Number:
WIPO Patent Application WO/2017/133193
Kind Code:
A1
Abstract:
Disclosed in the present invention are a charging system, charging method, and power adapter for a terminal. The charging system comprises a power adapter and a terminal. The power adapter comprises: a first rectifier unit, a switch unit, a transformer, a second rectifier unit, a first charging interface, a sampling unit, and a control unit. The control unit outputs a control signal to the switch unit, and adjusts, according to a voltage sample value and/or a current sample value sampled by the sampling unit, the duty cycle of the control signal, such that the voltage of a third pulsating waveform outputted by the second rectifier unit meets a charging requirement. The terminal comprises a second charging interface and a battery, and the second charging interface is connected to the battery. When the second charging interface is connected to the first charging interface, the second charging interface applies the voltage of the third pulsating waveform to the battery, such that the voltage of the pulsating waveform outputted by the power adapter is directly applied to the battery, thereby enabling miniaturization and a low cost of the power adapter, and increasing the service life of the battery.

Inventors:
ZHANG JIALIANG (CN)
ZHANG JUN (CN)
TIAN CHEN (CN)
CHEN SHEBIAO (CN)
LI JIADA (CN)
WAN SHIMING (CN)
Application Number:
PCT/CN2016/091756
Publication Date:
August 10, 2017
Filing Date:
July 26, 2016
Export Citation:
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Assignee:
GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD (CN)
International Classes:
H02J7/00
Foreign References:
CN105098900A2015-11-25
CN103746437A2014-04-23
CN104993182A2015-10-21
CN203747451U2014-07-30
Other References:
See also references of EP 3285353A4
Attorney, Agent or Firm:
TSINGYIHUA INTELLECTUAL PROPERTY LLC (CN)
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