CN108170256A - A kind of USB-C dynamically distributes power system and its power detecting method - Google Patents
A kind of USB-C dynamically distributes power system and its power detecting method Download PDFInfo
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- CN108170256A CN108170256A CN201810123393.3A CN201810123393A CN108170256A CN 108170256 A CN108170256 A CN 108170256A CN 201810123393 A CN201810123393 A CN 201810123393A CN 108170256 A CN108170256 A CN 108170256A
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- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000012544 monitoring process Methods 0.000 claims abstract description 23
- 238000001514 detection method Methods 0.000 claims description 11
- 230000005611 electricity Effects 0.000 claims description 11
- 238000004891 communication Methods 0.000 claims description 9
- 230000006641 stabilisation Effects 0.000 claims description 3
- 238000011105 stabilization Methods 0.000 claims description 3
- 238000007726 management method Methods 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000003032 molecular docking Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
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- 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
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/70—Structural association with built-in electrical component with built-in switch
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R27/00—Coupling parts adapted for co-operation with two or more dissimilar counterparts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Abstract
The present invention discloses a kind of USB C and dynamically distributes power system and its power detecting method, including USB C plugs, PD control device, microprocessor, electric power management circuit, power switch, USB C plugs, USB3.0 sockets；Wherein described USB C plugs are connect with PD control device；PD control device is connect with microprocessor；The microprocessor is connect respectively with the power switch with power supply monitoring and USB C sockets；The electric power management circuit is connect with power switch.The device can extend the device of multiple output interfaces simultaneously, increase utilization rate, reduce cost, while the device can monitor the performance number of each output interface, maximumlly to utilize the power of PD power supplys.
Description
Technical field
The present invention relates to a kind of USB-C computers, tablet, the field of mobile phone periphery accessory and its detection methods, especially relate to
And a kind of USB-C dynamically distributes power system and its power detecting method.
Background technology
After USB-C interfaces (USB Type-C interfaces, abbreviation USB-C) release, occur many USB-C on the market and connect
Computer, tablet, the mobile phone of mouth, the USB-C interfaces of these equipment can not only remain with the signal of USB3.1, can also prop up simultaneously
Hold the output of DP (DisplayPort) signal.Since the interface in these equipment is fewer, it is typically necessary and is expanded with a USB-C
Exhibition depressed place meets the needs of different to be extended to different interfaces.These general USB-C docking stations all support PD to charge, while have more
A USB interface and other interfaces.These USB interfaces need to supply electricity to peripheral equipment power supply, and multiple USB interfaces are connected to multiple
It is very big that required electricity is worked at the same time after USB device, PD power supplys (Power delivery RAPID CHARGING POWER SUPPLYs) are in addition to will be for
The USB device of periphery is supplied electricity to, remaining electricity can just supply electricity to computer.Most USB-C docking stations are cut from PD power supplys
Take fixed power that USB interface is kept for use, even if USB interface does not connect equipment, the power of this part will also be protected
Leave USB interface for, it is impossible to fill to computer.Sometimes resources idle has been resulted in, it is impossible to maximumlly utilize the power of PD power supplys.
Invention content
The present invention invents a kind of USB-C and dynamically distributes power system and its power inspection to solve the deficiency in existing technology
Survey method is to solve deficiency of the prior art.
Technical solution is as follows：A kind of USB-C dynamically distributes power system, including USB-C plugs, PD control device, microprocessor
Device, electric power management circuit, power switch, USB-C plugs, USB3.0 sockets, usb hub, DP video processors；The USB-
C plugs are connect with PD control device；PD control device is connect with microprocessor；The microprocessor respectively with the electricity with power supply monitoring
Source switch and the connection of USB-C sockets；The electric power management circuit is connect with power switch；The USB-C plugs and USB set line
Device and the connection of DP video processors；It is characterized in that：The USB-C interface extending devices include the electricity with current monitoring
Source switch, the power switch have been internally integrated current detection circuit, can be accurately detected and flow through how much current.Microprocessor
The power switch can be accessed by I2C buses, read the electric current that USB interface is consumed.Also detection is microprocessor simultaneously
It is no to have the connection of PD power supplys, after being connected if there is PD power supplys, pass through the power of PD communication detection PD power supplys.Then microprocessor calculates
Also how many power can be supplied to computer to charge, to the power of power=PD powers-USB consumption of computer charging.It is micro-
Whether processor changes every 1 second run-down USB power consumed, if the power of USB consumption changes, means
The power of computer is supplied to also to change, microprocessor is then notified that the PD control device adjustment power of front end, can be carried to change
Supply the power of computer.
Preferably：The power switch is the power switch with current monitoring function.
Preferably：The microprocessor passes through I2C bus access power switches.
Preferably：The power switch with current monitoring, has been internally integrated current detection circuit, can be accurately
It detects and flows through how much current, detection error is less than 100mA.Microprocessor can access the power switch by I2C buses,
Read the electric current that USB interface is consumed.
Preferably：The microprocessor selects ARM Cortex-M032-bit microprocessors.
Preferably：The power switch of the current monitoring is equipped with the current limitation threshold value that 8 gears are adjusted by I2C buses, point
It is not 530mA, 960mA, 1070mA, 1280mA, 1600mA, 2130mA, 2670mA, 3200mA, different USB can be met and connect
The current-limiting function of mouth.
Preferably：The PD control device is responsible for processing USB-C power supply managements, DP Alt-Mode shake hands.
Preferably：The microprocessor is responsible for communicating with PD power supplys, detects the output power of PD power supplys：It is carried by reading
Electric current on the power switch of current monitoring, calculating PD power supplys has much power, present apparatus autophage how much power, PD electricity
Source there remains how many available power, then be communicated again by PD outside notifying that PD control device also how many available power can be supplied to
Portion.
Preferably：The electric power management circuit is responsible for gating supplying channels and the 5V of output stabilization, is supplied to 5V systems
Power supply.When not having to connect PD power supplys, gating plug-Vbus is used as power input；After PD power supplys are connected to, gating socket-
Vbus is as power input；When power input is 5V voltages, electric power management circuit needs to export 5V, when power input is more than 5V
Voltage when, electric power management circuit will also export 5V.
A kind of power detecting method that power system is dynamically distributed based on USB-C, it is characterised in that：Microprocessor detects
It is no to have the connection of PD power supplys, after being connected if there is PD power supplys, by the power of PD communication detection PD power supplys, then pass through I2C buses
The power switch with power supply monitoring is accessed, reads all much power of USB device actual consumption, then microprocessor calculates also
How many power can be supplied to computer to charge, to the power of power=PD powers-USB consumption of computer charging.Micro- place
Whether reason device changes every 1 second run-down USB power consumed, if the power of USB consumption changes, means to carry
The power of supply computer also changes, and microprocessor is then notified that the PD control device adjustment power of front end, can be provided with changing
To the power of computer.
Advantageous effect：The device can extend the device of multiple output interfaces simultaneously, increase utilization rate, reduce cost, together
When the device can monitor the performance number of each output interface, maximumlly to utilize the power of PD power supplys.
Description of the drawings
Fig. 1 is the structure diagram that a kind of USB-C dynamically distributes power system.
Fig. 2 is the power detecting method schematic diagram that a kind of USB-C dynamically distributes power system.
Specific embodiment
A kind of USB-C plugs are connect with usb hub and DP video processors；The dynamic allocation power system includes
USB-C plugs, PD control device, microprocessor, electric power management circuit, power switch, USB-C plugs, USB3.0 sockets, USB set
Line device, DP video processors；The USB-C plugs are connect with PD control device；PD control device is connect with microprocessor；Micro- place
Reason device is connect respectively with the power switch with power supply monitoring and USB-C sockets；The electric power management circuit and power switch
Connection；The power switch is connect with USB；The power switch is the power switch with current monitoring function.It should be with electricity
The power switch of stream monitoring also supports current-limiting function, has 8 gears that can be respectively by the current limitation threshold value that I2C buses are adjusted
530mA, 960mA, 1070mA, 1280mA, 1600mA, 2130mA, 2670mA, 3200mA can meet different USB interfaces
Current-limiting function.The PD control device is responsible for processing USB-C power supply managements, DP Alt-Mode shake hands.The microprocessor be responsible for
PD power supplys communicate, and detect the output power of PD power supplys：By the electric current on power switch of the reading with current monitoring, PD is calculated
Power supply has much power, present apparatus autophage how much power, PD power supplys to there remains how many available power, then passes through PD again
Communication notice PD control device also how many available power can be supplied to outside；In the present invention, it is micro- for PD control device
Processor is equivalent to a PD power supply.The electric power management circuit is responsible for gating supplying channels and the 5V of output stabilization, is provided
Give 5V system power supplies.When not having to connect PD power supplys, gating plug-Vbus is used as power input；After PD power supplys are connected to, choosing
Logical socket-Vbus is used as power input；When power input is 5V voltages, electric power management circuit needs to export 5V, when power supply is defeated
When entering to be more than the voltage of 5V, electric power management circuit will also export 5V.
Embodiment 1
A kind of USB-C dynamically distributes the power detecting method of power system：Microprocessor has detected whether that PD power supplys connect,
After being connected if there is PD power supplys, by the power of PD communication detection PD power supplys, power supply monitoring is then carried by I2C bus access
Power switch, power monitoring signal is output to microprocessor, reads all much power of USB device actual consumption, then
Calculate that also how many power can be supplied to computer, provided that the power to computer changes, then notify by subtraction circuit
Whether the PD control device adjustment power of front end, the power every run-down USB consumption in 1 second change.By constantly monitoring USB
The changed power of interface dynamically adjusts the charge power that may be supplied to USB-C computers.
The present invention selects ARM Cortex-M032-bit to be internally integrated analog comparator as microprocessor, can be with
PD communication signals are handled to receive；The level communicated by external resistance configuration into PD, can handle the transmission of PD communication signals,
In this way, microprocessor can simulate USC-C PD communications.Microprocessor is mainly responsible for be led to external PD power supplys progress PD
News obtain the maximum power of PD power supplys, then read two power switches for carrying current monitoring by I2C buses, count institute
There is the actual power that USB interface currently consumes, while the current limitation value of each USB interface is set.Calculating current PD power supplys needs
It provides that how much power is used to docking station, then remaining PD powers is told to the PD control of front by PD communications again
Device is available to computer charging by PD control device.
Select the power switch with current monitoring, can real-time monitoring current, microprocessor can visit by I2C buses
Actual consumption how much current is asked, alleviates the workload of microprocessor in this way.In addition, it should be opened with the power supply of current monitoring
Pass also support current-limiting function, have 8 gears can by the current limitation threshold value that I2C buses are adjusted, be respectively 530mA, 960mA,
1070mA, 1280mA, 1600mA, 2130mA, 2670mA, 3200mA can meet the current-limiting function of different USB interfaces.
Many details are elaborated in the above description in order to fully understand the present invention.But above description is only
Presently preferred embodiments of the present invention, the invention can be embodied in many other ways as described herein, therefore this
Invention is not limited by specific implementation disclosed above.Any those skilled in the art are not departing from the technology of the present invention simultaneously
In the case of aspects, all technical solution of the present invention is made using the methods and technical content of the disclosure above many possible
Changes and modifications or the equivalent embodiment for being revised as equivalent variations.Every content without departing from technical solution of the present invention, according to this
The technical spirit any simple modifications, equivalents, and modifications made to the above embodiment of invention, still fall within skill of the present invention
In the range of the protection of art scheme.
Claims (7)
1. a kind of USB-C dynamically distributes power system, it is characterised in that：Including USB-C plugs, PD control device, microprocessor, electricity
Power management circuits, power switch, USB-C plugs, USB3.0 sockets, usb hub, DP video processors；Wherein described USB-C
Plug is connect with PD control device；PD control device is connect with microprocessor；The microprocessor respectively with power switch and USB-C
Socket connects；The electric power management circuit is connect with power switch；At the USB-C plugs and usb hub and DP videos
Manage device connection.
2. USB-C according to claim 1 dynamically distributes power system, it is characterised in that：The power switch be with
The power switch of current monitoring function；The microprocessor passes through I2C bus access power switches.
3. USB-C according to claim 1 dynamically distributes power system, it is characterised in that：The USB-C dynamically distributes work(
Rate system includes the power switch with current monitoring, which has been internally integrated current detection circuit, can be accurate
Ground, which detects, flows through how much current, and detection error is less than 100mA；Microprocessor can access the power supply by I2C buses and open
It closes, reads the electric current that USB interface is consumed.
4. USB-C according to claim 1 dynamically distributes power system, it is characterised in that：The microprocessor selects ARM
Cortex-M032-b i t microprocessors.
5. USB-C according to claim 2 dynamically distributes power system, it is characterised in that：It is described to carry current monitoring work(
Can power switch be equipped with the 8 current limitation threshold values that are adjusted by I2C buses of gear, be respectively 530mA, 960mA, 1070mA,
1280mA, 1600mA, 2130mA, 2670mA, 3200mA can meet the current-limiting function of different USB interfaces.
6. USB-C according to claim 1 dynamically distributes power system, it is characterised in that：The electric power management circuit is born
The 5V of duty gating supplying channels and output stabilization, is supplied to 5V system power supplies；When not having to connect PD power supplys, gating plug-
Vbus is as power input；After PD power supplys are connected to, gating socket-Vbus is used as power input；When power input is 5V electricity
During pressure, electric power management circuit needs to export 5V, and when power input is more than the voltage of 5V, electric power management circuit will also export 5V.
7. dynamically distributing the power detecting method of power system according to any USB-C of claim 1-6, feature exists
In：Microprocessor has detected whether that PD power supplys connect, and after being connected if there is PD power supplys, passes through the work(of PD communication detection PD power supplys
Then rate is carried the power switch of power supply monitoring by I2C bus access, reads all much power of USB device actual consumption,
Then microprocessor, which calculates also how many power, computer to be supplied to charge, and the power=PD powers to charge to computer-
The power of USB consumption.Whether microprocessor changes every 1 second run-down USB power consumed, if the work(of USB consumption
Rate changes, then means to be supplied to the power of computer also to change, and microprocessor is then notified that the PD control device adjustment of front end
Power, to change the power that can be supplied to computer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810123393.3A CN108170256B (en) | 2018-02-07 | 2018-02-07 | USB-C dynamic power distribution system and power detection method thereof |
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| CN201810123393.3A CN108170256B (en) | 2018-02-07 | 2018-02-07 | USB-C dynamic power distribution system and power detection method thereof |
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| CN108170256A true CN108170256A (en) | 2018-06-15 |
| CN108170256B CN108170256B (en) | 2024-03-26 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109117405A (en) * | 2018-07-30 | 2019-01-01 | 合肥联宝信息技术有限公司 | A kind of TypeC equipment and its control method |
| CN109144229A (en) * | 2018-09-30 | 2019-01-04 | 联想(北京)有限公司 | A kind of power supply output management method, apparatus and electronic equipment |
| CN110018728A (en) * | 2019-03-29 | 2019-07-16 | 联想(北京)有限公司 | A kind of electronic equipment |
| CN110941581A (en) * | 2019-11-04 | 2020-03-31 | 深圳慧能泰半导体科技有限公司 | Power adjusting method based on USB Type-C interface circuit, circuit thereof and electronic equipment |
| CN111190847A (en) * | 2019-12-16 | 2020-05-22 | 深圳慧能泰半导体科技有限公司 | Power adjusting method based on USB Type-C interface circuit, circuit thereof and electronic equipment |
| CN112346551A (en) * | 2020-10-09 | 2021-02-09 | 安克创新科技股份有限公司 | Power distribution method, device and system of hub and storage medium |
| CN113472043A (en) * | 2021-07-05 | 2021-10-01 | 科博达技术股份有限公司 | double-Type-C port shared charging power charger and intelligent output power distribution method thereof |
| CN113672067A (en) * | 2021-08-07 | 2021-11-19 | 东莞市海能电子有限公司 | Lightning docking station interface configuration method and device and lightning docking station |
| CN113794253A (en) * | 2020-10-29 | 2021-12-14 | 威锋电子股份有限公司 | Multi-port power supply device and operation method thereof |
| CN114546040A (en) * | 2021-12-31 | 2022-05-27 | 深圳市和宏实业股份有限公司 | USB docking station for controlling output power and control method thereof |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109117405A (en) * | 2018-07-30 | 2019-01-01 | 合肥联宝信息技术有限公司 | A kind of TypeC equipment and its control method |
| CN109144229A (en) * | 2018-09-30 | 2019-01-04 | 联想(北京)有限公司 | A kind of power supply output management method, apparatus and electronic equipment |
| WO2020063917A1 (en) * | 2018-09-30 | 2020-04-02 | 联想(北京)有限公司 | Power supply output management method and apparatus, and electronic device |
| CN110018728A (en) * | 2019-03-29 | 2019-07-16 | 联想(北京)有限公司 | A kind of electronic equipment |
| CN110941581A (en) * | 2019-11-04 | 2020-03-31 | 深圳慧能泰半导体科技有限公司 | Power adjusting method based on USB Type-C interface circuit, circuit thereof and electronic equipment |
| CN110941581B (en) * | 2019-11-04 | 2021-06-04 | 深圳慧能泰半导体科技有限公司 | Power adjusting method based on USB Type-C interface circuit, circuit thereof and electronic equipment |
| CN111190847B (en) * | 2019-12-16 | 2023-06-13 | 深圳慧能泰半导体科技有限公司 | Power adjusting method based on USB Type-C interface circuit, circuit and electronic equipment |
| CN111190847A (en) * | 2019-12-16 | 2020-05-22 | 深圳慧能泰半导体科技有限公司 | Power adjusting method based on USB Type-C interface circuit, circuit thereof and electronic equipment |
| CN112346551A (en) * | 2020-10-09 | 2021-02-09 | 安克创新科技股份有限公司 | Power distribution method, device and system of hub and storage medium |
| CN113794253A (en) * | 2020-10-29 | 2021-12-14 | 威锋电子股份有限公司 | Multi-port power supply device and operation method thereof |
| CN113472043A (en) * | 2021-07-05 | 2021-10-01 | 科博达技术股份有限公司 | double-Type-C port shared charging power charger and intelligent output power distribution method thereof |
| CN113672067A (en) * | 2021-08-07 | 2021-11-19 | 东莞市海能电子有限公司 | Lightning docking station interface configuration method and device and lightning docking station |
| CN113672067B (en) * | 2021-08-07 | 2022-06-10 | 东莞市海能电子有限公司 | Lightning docking station and configuration device |
| CN114546040A (en) * | 2021-12-31 | 2022-05-27 | 深圳市和宏实业股份有限公司 | USB docking station for controlling output power and control method thereof |
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| CN108170256B (en) | 2024-03-26 |
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