WO2015014224A1 - 一种供电终端、充电控制方法及装置 - Google Patents
一种供电终端、充电控制方法及装置 Download PDFInfo
- Publication number
- WO2015014224A1 WO2015014224A1 PCT/CN2014/082697 CN2014082697W WO2015014224A1 WO 2015014224 A1 WO2015014224 A1 WO 2015014224A1 CN 2014082697 W CN2014082697 W CN 2014082697W WO 2015014224 A1 WO2015014224 A1 WO 2015014224A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- power module
- switch
- output voltage
- terminal
- power supply
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 39
- 238000001514 detection method Methods 0.000 claims 1
- 230000001276 controlling effect Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/266—Arrangements to supply power to external peripherals either directly from the computer or under computer control, e.g. supply of power through the communication port, computer controlled power-strips
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
Definitions
- the present invention relates to the field of terminal charging technologies, and in particular, to a power supply terminal, a charging control method, and a device.
- USB Universal Serial Bus
- the power supply terminal shorts the two data pins D+ and D- of the USB port, and the analog standard charger charges the power supply terminal.
- the charging capability of the power supply terminal can meet the demand of the powered terminal, that is, the maximum charging current that the power supply terminal can output is not less than the charging current required by the power supply terminal
- the power supply terminal can charge the powered terminal; however, when the power is supplied
- the charging capability of the terminal cannot meet the demand of the powered terminal, that is, the maximum charging current that the power supply terminal can output is less than the charging current required by the power supply terminal, the voltage of the USB port of the power supply terminal may drop, and eventually the charging fails.
- the embodiment of the invention provides a power supply terminal, a charging control method and a device, which are used to solve the problem of poor compatibility of the terminal charging scheme in the prior art.
- a power supply terminal including a USB port, a switch, a power module, and a processor. among them:
- the USB port is configured to connect to a powered terminal
- One end of the power module is connected to the power pin VBUS of the USB port, and is used to charge the power supply terminal through the power pin VBUS, and the other end of the power module is connected to one terminal of the processor;
- the other two terminals of the processor are respectively connected to two data pins D+ and D- of the USB port;
- the switch and the two data pins D+, D- are connected in parallel to the processor;
- the processor In the closed state of the switch, during the charging process of the power module, the processor detects that the falling amplitude of the output voltage of the power module exceeds a preset value, and controls the switch. Disconnecting; and controlling the power module output voltage to charge the powered terminal when the switch is off.
- the processor is specifically configured to: after detecting that a falling amplitude of an output voltage of the power module exceeds a preset value, before controlling the switch to be disconnected , controlling the power module to stop the voltage output.
- the processor is further configured to: charge, by the power module, an output voltage to charge the powered terminal In the process, if it is detected that the powered terminal is pulled out from the USB port, the power module is controlled to stop voltage output.
- the processor is specifically used in In the disconnected state, the power module output voltage is controlled to charge the powered terminal based on the OTG protocol.
- the processor is further configured to: when the switch is in a closed state, the power module outputs a voltage During the charging process of the powered terminal, if it is not detected that the falling amplitude of the output voltage of the power module exceeds a preset value, the output voltage of the power module is controlled to be charged to the end of the powered terminal.
- a charging control method including:
- the power module output voltage is controlled to charge the powered terminal.
- the method includes the steps of: controlling the power source The module stops the voltage output.
- the method further includes:
- the output voltage of the power module is charged by the powered terminal, and specifically includes:
- the power module output voltage is controlled to charge the powered terminal based on an OTG protocol.
- the first possible implementation manner of the second aspect, the second possible implementation manner of the second aspect, or the third possible implementation manner of the second aspect, in the fourth possible implementation manner In the closed state of the switch, when the output voltage of the power module is in the charging process of the powered terminal, if the falling amplitude of the output voltage of the power module is not detected to exceed a preset value, the control is performed. The power module output voltage is charged to the end of the powered terminal.
- a charging control apparatus including: The detecting unit detects the falling amplitude of the output voltage of the power module during the charging process of the power supply terminal when the switch connected in parallel with the two data pins D+ and D- of the USB port is in a closed state. Exceeding the preset value;
- a control unit that controls the switch to be turned off, and in the off state of the switch, controls the power module output voltage to charge the powered terminal.
- control unit is specifically configured to: after detecting that a falling amplitude of an output voltage of the power module exceeds a preset value, before controlling the switch to be disconnected , controlling the power module to stop the voltage output.
- control unit is further configured to: when the output voltage of the power module is configured to charge the powered terminal In the process, if it is detected that the powered terminal is pulled out from the USB port, the power module is controlled to stop voltage output.
- the control unit is specifically used in In the disconnected state, the power module output voltage is controlled to charge the powered terminal based on the OTG protocol.
- control unit is further configured to: when the output voltage of the power module is in the charging process of the powered terminal, if the output of the power module is not detected, if the output voltage of the power module is not detected, the amplitude of the drop exceeds At the preset value, the power module output voltage is controlled to charge the powered terminal to the end.
- a switch and a data port D+, D- are connected in parallel in the power supply terminal,
- the switch is controlled to be closed when the powered terminal is inserted into the power supply terminal through the USB port, and the power supply terminal simulates a standard charger to charge the powered terminal, and when the power supply terminal simulates a standard charger
- the switch is controlled to be disconnected, and the power supply terminal and the powered terminal can communicate.
- the power supply terminal can charge the powered terminal, thereby improving compatibility.
- FIG. 1 is a schematic structural diagram of a power supply terminal according to an embodiment of the present invention.
- FIG. 2 is a flowchart of a charging control method according to an embodiment of the present invention.
- FIG. 3 is a detailed flowchart of a charging control method according to an embodiment of the present invention.
- FIG. 4 is a schematic structural diagram of a charging control apparatus according to an embodiment of the present invention. detailed description
- the embodiment of the present invention provides a power supply terminal, a charging control method and a device.
- the following describes the preferred embodiments of the present invention with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein. It is intended to illustrate and explain the present invention and is not intended to limit the invention. And in the case of no conflict, the features in the embodiments and the embodiments of the present application can be combined with each other.
- An embodiment of the present invention provides a power supply terminal, as shown in FIG. 1, including a USB port 101, a switch 102, a power module 103, and a processor 104, where:
- USB port 101 for connecting to a powered terminal
- the power module 103 is connected to the power pin VBUS of the USB port 101 for charging the powered terminal through the power pin VBUS, and the other end of the power module 103 is connected to the processor 104-terminal;
- the other two terminals of the processor 104 are respectively connected to the two data pins D+, D- of the USB port 101;
- the switch 102 and the two data pins D+, D- are connected in parallel to the processor 104;
- the processor 104 detects that the falling amplitude of the output voltage of the power module 103 exceeds a preset value, and the control switch 102 is turned off;
- the off state of 102 the output voltage of the control power module 103 is charged for the powered terminal.
- the power module 103 may specifically include a battery and a voltage regulating circuit.
- the processor 104 is specifically configured to: after detecting that the falling amplitude of the output voltage of the power module 103 exceeds a preset value, before the control switch 102 is turned off, the control power module 103 stops the voltage output.
- the processor 104 is further configured to: when the output voltage of the power module 103 is being charged for charging the powered terminal, if the powered terminal is detected to be pulled out from the USB port 101, the control power module 103 stops the voltage output.
- the processor 104 is specifically configured to control the output voltage of the power module 103 to charge the powered terminal based on the OTG (On The Go) protocol when the switch 102 is turned off.
- the embodiment of the present invention further provides a charging control method. As shown in FIG. 2, the method includes the following steps: Step 201: The power module is in a closed state when the switch connected to the two data pins D+ and D- of the USB port is in a closed state. When the output voltage is being charged by the power supply terminal, the falling amplitude of the output voltage of the power module is detected to exceed a preset value, and the switch is controlled to be turned off;
- Step 202 Control the output voltage of the power module to charge the powered terminal when the switch is off.
- the method includes the steps of: controlling the power module to stop the voltage output.
- the charging control method may further include:
- the power module When the output voltage of the power module is charging the powered terminal, if it is detected that the powered terminal is pulled out from the USB port, the power module is controlled to stop the voltage output.
- step 203 may specifically be:
- the output voltage of the power module is controlled according to the OTG protocol to be powered Terminal charging.
- Step 301 When the power supply terminal detects that the powered terminal is accessed through the USB port, the switch that controls the two data pins D+ and D- in the USB port is closed.
- the power supply terminal can detect whether the powered terminal is plugged in by detecting the level of the ID pin of the USB port. If the level of the ID pin of the USB port is pulled low, the powered terminal is inserted. This part is prior art and will not be described in detail here.
- Step 302 The power supply terminal controls a power module output voltage connected to the power port VBUS of the USB port to charge the powered terminal.
- the power supply terminal simulates a standard charger to charge the powered terminal.
- the standard voltage of the USB port is 5V, and it is possible to output a charging current of up to 1A to charge the power supply terminal. That is, the power module outputs 5V voltage and can output a charging current of up to 1A.
- Step 303 The power supply terminal detects the output voltage of the power module, and determines whether there is a drop amplitude of the output voltage of the power module exceeding a preset value.
- the power supply terminal detects that the falling amplitude of the output voltage of the power module exceeds a preset value, that is, the falling amplitude of the voltage of the USB port exceeds a preset value, indicating that the power supply terminal simulates the standard charger to charge the powered terminal, charging The capability cannot meet the requirements of the powered terminal, and the process proceeds to step 304; otherwise, the power supply terminal simulates the standard charger to charge the powered terminal, and the charging capability can meet the requirement of the powered terminal. At this time, the power supply terminal can The analog standard charger always charges the powered terminal until the charging is completed, and the process ends.
- the preset value can be specifically set according to the actual situation.
- Step 304 The power supply terminal controls the power module to stop the voltage output. At this time, the USB port stops voltage output.
- Step 305 The power terminal controls the two data pins D+ and D- in parallel with the USB port to be disconnected.
- the power supply terminal can communicate with the power supply terminal through the two data pins D+ and D- of the USB port, which can be based on the OTG protocol, the power supply terminal is used as the OTG master device, and the power supply terminal is used as the OTG slave device.
- step 305 may be performed first, and then step 304 is performed, that is, the two data pins D+ and D- of the USB port are first controlled.
- the parallel switch is turned off, and then the power module stops controlling the voltage output.
- Step 306 The power supply terminal controls the power module to continue to output the voltage to be charged by the power supply terminal.
- the USB port has a voltage output.
- the charging current required by the OTG slave device is 500 mA.
- the charging capability of the power supply terminal can meet the demand of the powered terminal, and the power supply terminal can always charge the powered terminal until the charging is completed.
- the control power module stops the voltage output, so that the USB port stops the voltage output.
- the method provided by the embodiment of the invention has better compatibility, and the power supply terminal preferentially simulates the standard charger to charge the powered terminal, so as to obtain a larger charging current for the powered terminal, and simulates the standard charger when the power supply terminal
- the power supply terminal is charged based on the USB communication protocol, so that the terminal charging time can be shortened as much as possible, the charging efficiency is improved, and the user experience is improved.
- the charging control method according to the above embodiment of the present invention, correspondingly, the embodiment of the present invention further provides a charging control device, and a schematic structural diagram thereof is shown in FIG. 4, which specifically includes: a detecting unit 401, The two data pins D+ and D- in parallel of the USB port are in a closed state, and the output voltage of the power module is charged during the charging process of the power supply terminal, and the falling amplitude of the output voltage of the power module is detected to exceed a preset value;
- the control unit 402 controls the switch to be turned off, and controls the power module output voltage to charge the powered terminal when the switch is turned off.
- control unit 402 is specifically configured to control the power module to stop the voltage output before detecting that the switch has been turned off after detecting that the falling amplitude of the output voltage of the power module exceeds a preset value.
- control unit 402 is further configured to control the power module to stop the voltage output when detecting that the powered terminal is pulled out from the USB port during the charging of the power module.
- control unit 402 is specifically configured to control, according to the OTG protocol, the output voltage of the power module to charge the powered terminal when the switch is in an off state.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Power Engineering (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Power Sources (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14832921.2A EP3001532A4 (en) | 2013-07-31 | 2014-07-22 | ELECTRICITY CLAMP AND CHARGING METHOD AND DEVICE |
US14/909,001 US10554060B2 (en) | 2013-07-31 | 2014-07-22 | Systems and methods for charging via USB port |
JP2016530327A JP6198258B2 (ja) | 2013-07-31 | 2014-07-22 | 電力供給端末、ならびに充電制御方法および装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310330408.0A CN103427460B (zh) | 2013-07-31 | 2013-07-31 | 一种供电终端、充电控制方法及装置 |
CN201310330408.0 | 2013-07-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015014224A1 true WO2015014224A1 (zh) | 2015-02-05 |
Family
ID=49651825
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2014/082697 WO2015014224A1 (zh) | 2013-07-31 | 2014-07-22 | 一种供电终端、充电控制方法及装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US10554060B2 (zh) |
EP (1) | EP3001532A4 (zh) |
JP (1) | JP6198258B2 (zh) |
CN (1) | CN103427460B (zh) |
WO (1) | WO2015014224A1 (zh) |
Cited By (1)
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CN106469928A (zh) * | 2015-08-19 | 2017-03-01 | 三星电子株式会社 | 电子设备和电子设备中有线和无线充电的方法 |
Families Citing this family (16)
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CN103427460B (zh) * | 2013-07-31 | 2016-09-07 | 华为终端有限公司 | 一种供电终端、充电控制方法及装置 |
CN104423278B (zh) * | 2013-08-27 | 2017-09-26 | 华为终端有限公司 | 移动供电终端及其供电方法 |
CN103944224B (zh) * | 2014-04-11 | 2016-06-15 | 深圳市哈里通实业有限公司 | 一种移动电源自动识别终端充电、自适应终端otg*** |
JP6501867B2 (ja) * | 2014-08-05 | 2019-04-17 | テキサス インスツルメンツ インコーポレイテッド | 迅速なusb充電のための方法、電子デバイス、および充電器装置 |
CN106684955B (zh) * | 2015-11-11 | 2019-10-15 | 小米科技有限责任公司 | 充电器、电子设备及充电方法 |
CN105576753A (zh) * | 2016-01-04 | 2016-05-11 | 联想(北京)有限公司 | 一种信息处理方法及电子设备 |
CN105703436A (zh) * | 2016-03-25 | 2016-06-22 | 广东欧珀移动通信有限公司 | 一种充电装置的充电接口及充电装置 |
CN106786960B (zh) * | 2017-01-13 | 2019-10-25 | Oppo广东移动通信有限公司 | 充电控制方法、装置及终端 |
CN106787032A (zh) * | 2017-03-31 | 2017-05-31 | 维沃移动通信有限公司 | 一种充电端口的控制方法、装置及充电器 |
CN107732343B (zh) * | 2017-09-12 | 2020-04-14 | 海日升电器制品(深圳)有限公司 | 充电方法和充电器 |
CN108257622B (zh) * | 2018-03-06 | 2024-05-24 | 宁波向往智能科技有限公司 | 一种背景音乐主机的充电管理*** |
CN111279574B (zh) * | 2018-04-25 | 2024-03-22 | Oppo广东移动通信有限公司 | 终端设备和充电控制方法 |
CN108964182B (zh) * | 2018-07-17 | 2020-12-04 | 北京小米移动软件有限公司 | 反向充电设备、反向充电电流的调节方法及装置 |
CN111216587B (zh) * | 2018-11-23 | 2022-04-05 | 北京嘀嘀无限科技发展有限公司 | 一种供电方法、充电方法、供电设备、待充电设备 |
CN112928787B (zh) * | 2019-12-06 | 2024-07-09 | 北京小米移动软件有限公司 | 充电电路、电子设备、充电控制方法及装置 |
CN112803558B (zh) * | 2021-04-09 | 2021-07-02 | 深圳英集芯科技股份有限公司 | 多快充协议控制电路、控制方法、芯片及电子设备 |
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- 2014-07-22 US US14/909,001 patent/US10554060B2/en active Active
- 2014-07-22 EP EP14832921.2A patent/EP3001532A4/en not_active Ceased
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Also Published As
Publication number | Publication date |
---|---|
JP6198258B2 (ja) | 2017-09-20 |
EP3001532A1 (en) | 2016-03-30 |
EP3001532A4 (en) | 2016-09-07 |
CN103427460A (zh) | 2013-12-04 |
US10554060B2 (en) | 2020-02-04 |
JP2016525868A (ja) | 2016-08-25 |
US20160181843A1 (en) | 2016-06-23 |
CN103427460B (zh) | 2016-09-07 |
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