Title:
TERMINAL CHARGING SYSTEM, CHARGING METHOD, AND POWER ADAPTER
Document Type and Number:
WIPO Patent Application WO/2017/133392
Kind Code:
A1
Abstract:
Provided are a terminal (2) charging system, charging method, and power adapter (1), said charging system comprising a power adapter (1) and a terminal (2), and said power adapter (1) comprising: a first rectifier unit (101), a switch unit (102), a transformer (103), a second rectifier unit (104), a first charging interface (105), a sampling unit (106), and a control unit (107); the control unit (107) outputs a control signal to the switch unit (102), and according to the voltage sample value and/or current sample value sampled by the sampling unit (106), adjusting the duty cycle of the control signal so that the voltage of a third pulsating waveform outputted by the second rectifier unit (104) satisfies charging requirements; the terminal (2) comprises a second charging interface (201) and a battery (202), the second charging interface (201) and the battery (202) being connected together; when the second charging interface (201) is connected to the first charging interface (105), the second charging interface (201) loads the voltage of the third pulsating waveform to the battery (202), such that the pulsating waveform voltage outputted by the power adapter (1) is loaded directly onto the battery (202); thus the size of the power adapter (1) is reduced, its costs are low, and the service life of the battery (202) is increased.
Inventors:
TIAN CHEN (CN)
ZHANG JIALIANG (CN)
ZHANG JIALIANG (CN)
Application Number:
PCT/CN2017/070537
Publication Date:
August 10, 2017
Filing Date:
January 07, 2017
Export Citation:
Assignee:
GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD (CN)
International Classes:
H02J7/02
Foreign References:
| CN106100083A | 2016-11-09 | |||
| CN106026327A | 2016-10-12 | |||
| CN101558229A | 2009-10-14 | |||
| US20140362609A1 | 2014-12-11 | |||
| CN203747452U | 2014-07-30 |
Other References:
See also references of EP 3282547A4
Attorney, Agent or Firm:
TSINGYIHUA INTELLECTUAL PROPERTY LLC (CN)
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