CN107436853A - The control method of USB Type C/PD connectors - Google Patents
The control method of USB Type C/PD connectors Download PDFInfo
- Publication number
- CN107436853A CN107436853A CN201610360531.0A CN201610360531A CN107436853A CN 107436853 A CN107436853 A CN 107436853A CN 201610360531 A CN201610360531 A CN 201610360531A CN 107436853 A CN107436853 A CN 107436853A
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- usb
- usb type
- usb port
- controllers
- connectors
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4004—Coupling between buses
- G06F13/4022—Coupling between buses using switching circuits, e.g. switching matrix, connection or expansion network
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/0042—Universal serial bus [USB]
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Information Transfer Systems (AREA)
Abstract
A kind of control method of USB Type C/PD connectors, the USB Type C/PD connectors include：At least two USB ports, the multiway analog switch being connected with each USB port and the USB Type C/PD controllers being connected with the multiway analog switch；The control method includes：The multiway analog switch timesharing is controlled to switch in a predetermined manner so that an only USB port is connected with the USB Type C/PD controllers in certain time period, so as to the USB Type C/PD controllers and one group of USB port tdm communication.So as to provide a kind of control method of the USB Type C/PD connectors of reduction USB Type C/PD connector costs.
Description
Technical field
The present invention relates to a kind of control method of USB Type-C/PD connectors.
Background technology
USB Type-C/PD connectors not only overcome that traditional USB connector can not while just be inserted and anti-plug is asked at present
Outlying, it may also provide up to 10Gbps data transmission bauds.But each USB port of USB Type-C/PD connectors needs
Want a USB Type-C/PD controller to handle the data of corresponding ports, therefore, when USB Type-C/PD connectors have it is more
During individual USB port, then need to set multiple USB Type-C/PD controllers.In this way, unnecessary cost will be caused.
The content of the invention
In view of above-mentioned condition, it is necessary to which a kind of USB Type- that can reduce USB Type-C/PD connector costs are provided
The control method of C/PD connectors.
The present invention provides a kind of control method of USB Type-C/PD connectors, the USB Type-C/PD connector bags
Include：At least two USB ports, the multiway analog switch being connected with each USB port and it is connected with the multiway analog switch
USB Type-C/PD controllers；The control method includes：
The multiway analog switch timesharing is controlled to switch in a predetermined manner so that an only USB end in certain time period
Mouth is connected with the USB Type-C/PD controllers, so as to the USB Type-C/PD controllers and one group of USB port
Tdm communication.
Preferably, switch the multiway analog switch to a certain USB port so that a certain USB port and the USB
Type-C/PD controllers connect；And the control multiway analog switch turns on a certain USB port and the USB Type-
The scheduled time of connection one of C/PD controllers.
Preferably, when a certain USB port is connected with external equipment, control described in the multiway analog switch conducting
The scheduled time of connection one first of a certain USB port and the USB Type-C/PD controllers.
Preferably, when a certain USB port is not connected with external equipment, the multiway analog switch conducting institute is controlled
State the scheduled time of connection one second of a certain USB port and the USB Type-C/PD controllers.
Preferably, second scheduled time is less than first scheduled time.
Preferably, second scheduled time is equal to first scheduled time.
Preferably, receive being connected with least two USB port from USB Type-C/PD controllers transmission
The power request signal of external equipment, a power module is controlled to supply electrical power to described at least two according to each power request signal
USB port.
Preferably, the power request signal is voltage request signal or current request signal.
Preferably, receive being connected with least two USB port from USB Type-C/PD controllers transmission
The power request signal of external equipment, a configuration electric power is determined according to the rule pre-set, and control the power module root
At least two USB port is supplied electrical power to according to the configuration electric power of the determination.
Preferably, the rule that pre-sets is：Believe when there are at least two power requests in the power request signal
When number identical, using the identical power request signal as configuration electric power.Preferably, the rule that pre-sets is：Work as institute
State when there are at least two power request signals identical in power request signal, using the identical power request signal as configuration electricity
Power.
The present invention is by controlling a multiway analog switch timesharing to switch so that in certain time period in one group of USB port only
There is a USB port to be connected with a USB Type-C/PD controllers, so as to the USB Type-C/PD controllers and with described
The external equipment tdm communication of USB port connection, in this way, regardless of how many USB port, it is only necessary to a USB Type-C/
A kind of PD control device, there is provided control method for the USB Type-C/PD connectors for reducing cost.
Brief description of the drawings
Fig. 1 is the functional-block diagram of the USB Type-C/PD connectors of one embodiment of the invention.
Fig. 2 is the circuit block diagram of the USB Type-C/PD connectors shown in Fig. 1.
Fig. 3 is the control flow chart of the MCU units of one embodiment of the invention.
Main element symbol description
| USB Type-C/PD connectors | 1 |
| USB port | 10 |
| Multiway analog switch | 20 |
| USB Type-C/PD controllers | 30 |
| Main control unit | 40 |
| External equipment | 2 |
| Power module | 3 |
| Four select an analog switch | 21 |
| MCU units | 41 |
Following embodiment will combine above-mentioned accompanying drawing and further illustrate the present invention.
Embodiment
Below in conjunction with the accompanying drawings, by the present invention specific embodiment be described in detail, will make technical scheme and
Other beneficial effects are apparent.Used it is appreciated that accompanying drawing only provides with reference to explanation, be not used for limiting the present invention
System.The size shown in accompanying drawing is only to be described for ease of clear, and does not limit proportionate relationship.
Fig. 1 is refer to, is the functional-block diagram of the USB Type-C/PD connectors 1 of one embodiment of the invention.The USB
Type-C/PD connectors 1 include one group of USB port 10, a multiway analog switch 20, a USB Type-C/PD controllers 30 and
One main control unit 40.One group of USB port 10 includes at least two USB ports.
The multiway analog switch 20 is connected with least two USB port, for from least two USB port
One USB port of middle selection is attached with the USB Type-C/PD controllers 30, and is disconnected with other USB ports.
The USB Type-C/PD controllers 30 be connected to the multiway analog switch 20 and the main control unit 40 it
Between.The USB Type-C/PD controllers 30 support USB Type-C/PD.The USB Type-C/PD controllers 30 pass through institute
State multiway analog switch 20 and detect whether the USB port is connected with an external equipment 2.In the present embodiment, the outside is set
Standby 2 be mobile phone, tablet personal computer, portable power source or mobile hard disk etc..The USB Type-C/PD controllers 30 are also in the USB
When port is connected with the external equipment 2, received and the USB ends from the USB port by the multiway analog switch 20
The power request signal of the external equipment 2 of mouth connection.The USB Type-C/PD controllers are also by the electricity of the external equipment 2
Power request signal is sent to the main control unit 40.In the present embodiment, the power request signal be voltage request signal or
Current request signal.In this way, after the USB Type-C/PD controllers are sequentially connected with all USB ports, the USB
The power request signal for the external equipment 2 that each USB port connects sequentially is sent to the master control list by Type-C/PD controllers
Member 40.
The main control unit 40 is connected with the multiway analog switch 20 and the USB Type-C/PD controllers 30.Institute
State main control unit 40 controls the timesharing of multiway analog switch 20 to switch in the intended manner so that only one in certain time period
Individual USB port is connected with the USB Type-C/PD controllers 30, so as to realize that the timesharing of at least two USB port is answered
With so that the USB Type-C/PD controllers 30 and at least two USB ports tdm communication, so as to the USB
Type-C/PD controllers 30 can pass through at least two USB port and the tdm communication of external equipment 2.
The main control unit 40 is also connected with a power module 3.Electricity of the main control unit 40 always according to each external equipment 2
Power request signal controls the power module 3 to be charged by being connected with the USB port of external equipment to the external equipment 2.
Fig. 2 is please also refer to, is the circuit block diagram of the USB Type-C/PD connectors 1 of one embodiment of the invention.At this
In embodiment, one group of USB port 10 includes four USB ports, respectively USB port 1, USB port 2, USB port 3 and
USB port 4.Four USB port 1-4 are in parallel.In the present embodiment, the positive pole of four USB port 1-4 mutually interconnects
Connect, the negative pole of four USB ports is connected with each other.The positive pole and negative pole of four USB port 1-4 and the power module
3 connections.
The multiway analog switch 20 and the USB port 1, the USB port 2, the USB port 3 and the USB ends
Mouth 4 connects.In the present embodiment, the multiway analog switch 20 selects an analog switch 21 for four.Specifically, in the present embodiment
In, described four to select an analog switch 21 be SGM4782 chips.Obviously, in other embodiments, described four an analog switch 21 is selected
It can also be other kinds of chip.
The USB Type-C/PD controllers 30 include D+ ends and D- ends.The D+ ends and the D- ends are the USB
The data communication port of Type-C/PD controllers 30.The D+ ends and D- ends of the USB Type-C/PD controllers 30 pass through described
Four select an analog switch 21 to be connected with each USB port.The USB Type-C/PD controllers 30 also include CC ends.The USB
The CC ends of Type-C/PD controllers 30 are the collocation channel of the USB Type-C/PD controllers 30.The USB Type-C/
An analog switch 21 is selected to be connected with described four in the CC ends of PD control device 30.The USB Type-C/PD controllers 30 are by described
Whether the USB port that the detecting of CC ends is connected with the USB Type-C/PD controllers 30 is connected with external equipment 2.In this implementation
In example, the USB Type-C/PD controllers 30 also determine to be connected with the USB Type-C/PD controllers by the CC ends
The power request signal of external equipment 2 that is connected of USB port, and the power request signal of the external equipment 2 is transmitted
To the main control unit 40.For example, when USB Type-C/PD controllers sequentially with the USB port 1, the USB port 2, institute
After stating USB port 3 and the connection of the USB port 4, the electricity with the USB port 1-4 four external equipments 2 being connected is received
Power request signal is respectively 5 volts, 5 volts, 55 volts and 6 volts, then the USB Type-C/PD controllers 30 are sequentially by institute
5 volts, 5 volts, 5 volts and 6 volts of electricity needs for stating four external equipments 2 is sent to the main control unit 40.
In the present embodiment, the main control unit 40 includes MCU units 41.The MCU units 41 and the USB Type-
C/PD controllers 30, described four select an analog switch 21 and the power module 3 to connect.The MCU units 41 control described four
The timesharing of an analog switch 21 is selected to switch so that an only USB port controls with the USB Type-C/PD in certain time period
D+ ends, D- ends and the connection of CC ends of device 30.So as to the USB Type-C/PD controllers 30 by D+ ends and D- ends with it is described outer
The tdm communication of portion's equipment 2.Meanwhile the MCU units 41 receive each outside that the USB Type-C/PD controllers 30 transmit and set
Standby 2 power request signal, configuration electric power is determined according to the rule pre-set, and control the power module 3 according to described
Configuration electric power charges to each external equipment 2.In the present embodiment, the rule that pre-sets is：When there is multiple identicals electricity
When power request signal is identical, using identical power request signal as configuration electric power.For example, when the USB Type-C/PD are controlled
When the power request signal that device 30 is transmitted is 5 volts, 5 volts, 5 volts and 6 volts, the MCU units 41 control the electricity
Source module 3 provides 5 volts of configuration electric power to four external equipments 2.In other embodiments, the rule pre-set
It is then：The power request signal of middle size in using size as multiple power request signals is configuration electric power.For example, when described
When the power request signal that USB Type-C/PD controllers 30 are transmitted is 5 volts, 6 volts, 8 volts, the MCU units 41
The configuration electric power that the power module 3 provides 6 volts is controlled to three external equipments 2.Obviously, the rule pre-set
Can also be then other rules, herein without lifting in detail.
Fig. 3 is refer to, is the control flow chart of the MCU units 41 of one embodiment of the invention.In the present embodiment, according to not
Same demand, the execution sequence of the step in flow chart shown in Fig. 3 can change, and some steps can be omitted.
In step S301, the MCU units 41 switch described four and select an analog switch 21 to USB port 1 so that described
USB port 1 is connected with the D+ ends, D- ends and CC ends of USB Type-C/PD controllers 30.
In step s 302, the MCU units 41 receive the power request for the external equipment 2 being connected with the USB port 1
Signal.
In step S303, the MCU units 41 control described four select an analog switch 21 conducting USB port 1 with it is described
The scheduled time of connection one of USB Type-C/PD controllers 30.
In step s 304, the MCU units 41 switch described four and select an analog switch 21 to USB port 2 so that described
USB port 2 is connected with the D+ ends, D- ends and CC ends of USB Type-C/PD controllers 30.
In step S305, the MCU units 41 receive the power request for the external equipment 2 being connected with the USB port 2
Signal.
In step S306, the MCU units 41 control described four select an analog switch 21 conducting USB port 2 with it is described
The scheduled time of connection one of USB Type-C/PD controllers 30.
In step S307, the MCU units 41 switch described four and select an analog switch 21 to USB port 3 so that described
USB port 3 is connected with the D+ ends, D- ends and CC ends of USB Type-C/PD controllers 30.
In step S308, the MCU units 41 receive the power request for the external equipment 2 being connected with the USB port 3
Signal.
In step S309, the MCU units 41 control described four select an analog switch 21 conducting USB port 3 with it is described
The scheduled time of connection one of USB Type-C/PD controllers 30.
In step S310, the MCU units 41 switch described four and select an analog switch 21 to USB port 4 so that described
USB port 4 is connected with the D+ ends, D- ends and CC ends of USB Type-C/PD controllers 30.
In step S311, the MCU units 41 receive the power request for the external equipment 2 being connected with the USB port 4
Signal.
In step S312, the MCU units 41 control described four select an analog switch 21 conducting USB port 4 with it is described
The scheduled time of connection one of USB Type-C/PD controllers 30.
In step S313, the MCU units 41 determine configuration electric power according to the power request signal of each external equipment 2,
And 3 pairs of the power module according to the configuration Electric control charges with the USB port 1-4 external equipments 2 being connected.
Wherein, after execution of step S313, step S301 is performed.
So as to which the MCU units 41 control the timesharing of multiway analog switch 20 to switch in a predetermined manner so that certain
An only USB port is connected with D+ ends, D- ends and the CC ends of the USB Type-C/PD controllers 30 in one period.
In the present embodiment, the predetermined mode for circulation turn in order USB port 1, USB port 2, USB port 3 and USB port 4 with
The connection at the D+ ends of the USB Type-C/PD controllers 30, D- ends and CC ends.In other embodiments, the predetermined side
Formula can be that circulation turn in order USB port 2, USB port 3, USB port 4 and the USB port 1 and USB Type-C/PD are controlled
The connection at the D+ ends of device 30, D- ends and CC ends.
Obviously, if some USB port does not connect external equipment 2, MCU units 41 receive some described USB port
The step of power request signal of corresponding external equipment 2, can omit.Such as when USB port 2 is without connection external equipment 2
When, then step S305 can be omitted.
Wherein, when the MCU units 41 switch the multiway analog switch 20 to USB port n, the USB Type-C/
When PD control device 30 detects the USB port n and is connected with external equipment 2, the MCU units 41 control described four to select a simulation
The conducting USB port n of switch 21 and the USB Type-C/PD controllers 30 scheduled time of connection one first, so as to the USB
Type-C/PD controllers 30 communicate within first scheduled time with the external equipment 2 being connected with the USB port 1.And work as
The MCU units 41 switch the multiway analog switch 20 to USB port n, when the USB Type-C/PD controllers 30 are detected
When not being connected to the USB port n with external equipment 2, the MCU units 41 control described four to select an analog switch 21 to turn on
USB port n and the USB Type-C/PD controllers 30 scheduled time of connection one second.In the present embodiment, described second
The scheduled time is equal to first scheduled time.In other embodiments, second scheduled time, it is predetermined to be less than described first
Time, having the more time so as to the USB Type-C/PD controllers 30 is communicated with the external equipment 2.Wherein, it is described
USB port n can be USB port 1, USB port 2, USB port 3 or USB port 4.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (10)
1. a kind of control method of USB Type-C/PD connectors, the USB Type-C/PD connectors include：At least two
USB port, the multiway analog switch being connected with each USB port and the USB Type- being connected with the multiway analog switch
C/PD controllers；The control method includes：
The multiway analog switch timesharing is controlled to switch in a predetermined manner so that an only USB end in certain time period
Mouth is connected with the USB Type-C/PD controllers, so as to the USB Type-C/PD controllers and one group of USB port
Tdm communication.
2. the control method of USB Type-C/PD connectors as claimed in claim 1, it is characterised in that the step " according to
Predetermined mode controls the multiway analog switch timesharing to switch so that in certain time period an only USB port with it is described
USB Type-C/PD controllers connect " include：
Switch the multiway analog switch to a certain USB port so that a certain USB port and the USB Type-C/PD
Controller connects；And
The multiway analog switch is controlled to turn on the connection one of a certain USB port and the USB Type-C/PD controllers
The scheduled time.
3. the control method of USB Type-C/PD connectors as claimed in claim 2, it is characterised in that：
When a certain USB port is connected with external equipment, the multiway analog switch is controlled to turn on a certain USB port
With the scheduled time of connection one first of the USB Type-C/PD controllers.
4. the control method of USB Type-C/PD connectors as claimed in claim 3, it is characterised in that：
When a certain USB port is not connected with external equipment, the multiway analog switch is controlled to turn on a certain USB ends
The scheduled time of connection one second of mouth and the USB Type-C/PD controllers.
5. the control method of USB Type-C/PD connectors as claimed in claim 4, it is characterised in that：
Second scheduled time is less than first scheduled time.
6. the control method of USB Type-C/PD connectors as claimed in claim 4, it is characterised in that：
Second scheduled time is equal to first scheduled time.
7. the control method of USB Type-C/PD connectors as claimed in claim 1, it is characterised in that the USB Type-
The control method of C/PD connectors includes：
Receive from the external equipment being connected with least two USB port of USB Type-C/PD controllers transmission
Power request signal, a power module is controlled to supply electrical power at least two USB port according to each power request signal.
8. the control method of USB Type-C/PD connectors as claimed in claim 7, it is characterised in that：The power request
Signal is voltage request signal or current request signal.
9. the control method of USB Type-C/PD connectors as claimed in claim 7, it is characterised in that the step " receives
From the power request of the external equipment being connected with least two USB port of USB Type-C/PD controllers transmission
Signal, a power module is controlled to supply electrical power at least two USB port according to each power request signal " including being：
Receive from the external equipment being connected with least two USB port of USB Type-C/PD controllers transmission
Power request signal, a configuration electric power is determined according to the rule pre-set, and control the power module according to the determination
Configuration electric power supply electrical power at least two USB port.
10. the control method of USB Type-C/PD connectors as claimed in claim 9, it is characterised in that：
The rule that pre-sets is：When there is at least two power request signals identical in the power request signal, with
The identical power request signal is configuration electric power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610360531.0A CN107436853B (en) | 2016-05-28 | 2016-05-28 | Control method of USB Type-C/PD connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610360531.0A CN107436853B (en) | 2016-05-28 | 2016-05-28 | Control method of USB Type-C/PD connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107436853A true CN107436853A (en) | 2017-12-05 |
| CN107436853B CN107436853B (en) | 2020-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201610360531.0A Active CN107436853B (en) | 2016-05-28 | 2016-05-28 | Control method of USB Type-C/PD connector |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107436853B (en) | 2020-06-19 |
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