US 2018/0026472 A1 · Charging System, Charging Method, and Power Adapter

Abstract

A charging system, a charging method and a power adapter are provided. The power adapter includes a first rectification unit, a switch unit, a transformer, a second rectification unit, a first charging interface, a sampling unit, and a control unit. The control unit is configured to output a control signal to the switch unit, and adjust a duty ratio of the control signal based on a voltage sampling value and/or current sampling value sampled by the sampling unit, whereby a voltage of a third pulsating waveform output by the second rectification unit meets the charging requirements. The terminal includes a second charging interface and a battery. The second charging interface is coupled with the battery. When the second charging interface is coupled to the first charging interface, the second charging interface applies the voltage of the third pulsating waveform to the battery.

Claims25

Dependent claims

A charging system, comprising:

a battery;
a first rectification unit, configured to rectify, in a charging process, an input alternating current (AC) and output a voltage of a first pulsating waveform;
a switch unit and a transformer, configured to receive the voltage of the first pulsating waveform outputted by the first rectification unit, and couple the voltage of the first pulsating waveform to a secondary side circuit;
and
the secondary side circuit, configured to generate an output voltage for charging the battery.

2 more elements

A power adapter, comprising:

a first rectification unit, configured to rectify, in a charging process, an input alternating current (AC) and output a voltage of a first pulsating waveform;
and
a switch unit and a transformer, configured to receive the voltage of the first pulsating waveform outputted by the first rectification unit and couple the voltage of the first pulsating waveform to a secondary side circuit of the power adapter to generate an output voltage of the power adapter.

Dependencies are inferred from the claim text.

Facts

Application

15/710,612Filed 20 Sep 2017

Priority

CN PCT/CN2016/0736795 Feb 2016

Published

25 Jan 2018

Term ends

Not estimatedThe source records don’t support an estimate.

Classification46 codes

H02J 7/02
Circuit arrangements for charging or discharging batteries or for supplying loads from batteries: for charging batteries from AC mains by converters
G01R 31/3842
Arrangements for monitoring battery or accumulator variables, e.g. SoC: combining voltage and current measurements
H01M 10/0525
Li-accumulators: rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
H01M 10/425
Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells: structural combination with electronic…

Charging System, Charging Method, and Power Adapter

Life of this patent

Charging System, Charging Method, and Power Adapter

Life of this patent

Abstract

Claims25