CN106201951A - Terminal unit based on USB Type C interface, external equipment and electric power system - Google Patents
Terminal unit based on USB Type C interface, external equipment and electric power system Download PDFInfo
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- CN106201951A CN106201951A CN201610570747.XA CN201610570747A CN106201951A CN 106201951 A CN106201951 A CN 106201951A CN 201610570747 A CN201610570747 A CN 201610570747A CN 106201951 A CN106201951 A CN 106201951A
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- 230000005611 electricity Effects 0.000 claims description 48
- 238000001514 detection method Methods 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 16
- 230000006870 function Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 238000004891 communication Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 210000005069 ears Anatomy 0.000 description 1
Classifications
-
- 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
- G06F13/382—Information transfer, e.g. on bus using universal interface adapter
- G06F13/385—Information transfer, e.g. on bus using universal interface adapter for adaptation of a particular data processing system to different peripheral devices
-
- 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
-
- 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
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Mathematical Physics (AREA)
- Power Sources (AREA)
Abstract
The present invention provides a kind of terminal unit based on USB Type C interface, external equipment and electric power system, in the USB Type C interface determine external equipment after the voltage x current demand of each power pins, the first feeder ear and the output of the second feeder ear of supply module is controlled according to power demands, and the first receiving terminal in control handover module, second receiving terminal, first outfan, the conducting state of the second outfan, thus provide two kinds of voltages to external equipment, make external equipment when two kinds of voltage varied in size of demand, without arranging voltage conversion circuit, realize reducing the complexity of external equipment circuit, cost-effective purpose.
Description
Technical field
The present embodiments relate to USB Type-C interfacing field, particularly relate to a kind of based on USB Type-C interface
Terminal unit, external equipment and electric power system.
Background technology
Along with the fast development of USB (universal serial bus) (Universal Serial Bus, USB) interface, USB interface by
Type A interface and Type B interface are evolved to USB Type-C interface.Electric power transmission (Power Delivery, PD) function is
One of critical function of USB Type-C interface.By PD function, the terminal unit possessing USB Type-C interface can be it
He supports that the external equipment of USB Type-C interface is powered.Wherein, it is provided that the terminal unit of function of supplying power is referred to as main equipment, quilt
The external equipment of power supply is referred to as from equipment.In power supply process, main equipment by USB Type-C interface by voltage transmission to from
Equipment, thus realize from the power supply of equipment.
In general, the voltage ratio that main equipment can provide is more single.But, under some scenes, need multiple from equipment
Different size of voltage.When voltage is transmitted to during from equipment by main equipment by USB Type-C interface, need to pass through from equipment
The voltage conversion circuit of self, is converted to the voltage of self-demand, so by the voltage transmitted by USB Type-C interface
After, this voltage could be used.During Gai, need at design voltage change-over circuit on equipment so that complicated from circuitry,
Cost is high.
Summary of the invention
The present invention provides a kind of terminal unit based on USB Type-C interface, external equipment and electric power system, it is achieved fall
Low from the complexity of circuitry, cost-effective purpose.
First aspect, the embodiment of the present invention provides a kind of terminal unit based on USB Type-C interface, and described terminal sets
For including:
Supply module, described supply module is provided with the first feeder ear and the second feeder ear；
Handover module, described handover module is provided with the first receiving terminal being connected with described first feeder ear and described
The second receiving terminal that two feeder ears are connected, be additionally provided with that the first power pins with described USB Type-C interface is connected first
The second outfan that outfan, second source pin with described USB Type-C interface are connected；
Processor, described processor is configured to the CC pin of described USB Type-C interface and receives external equipment
Power demands, and according to described power demands, control the first feeder ear and the output of the second feeder ear of described supply module, and
Control the first receiving terminal in described handover module, the second receiving terminal, the first outfan, the conducting state of the second outfan, wherein
Described power demands is at least two voltage x current demand of described external equipment.
Second aspect, the embodiment of the present invention provides a kind of external equipment based on USB Type-C interface, described external sets
For including:
First by electricity module；
Second by electricity module；
Handover module, described handover module is provided with and the described first the first outfan being connected by electricity module, with described
Second the second outfan being connected by electricity module, is additionally provided with the connected with described USB Type-C interface the first power pins
One receiving terminal, the second receiving terminal connected with described USB Type-C interface second source pin；
Processor, described processor for being subject to the voltage x current of electricity module according to described first by electricity module and described second
Demand, generates power demands, and sends described power demands, wherein said confession by the CC pin of described USB Type-C interface
Electricity demand is at least two voltage x current demand of described external equipment.
The third aspect, the embodiment of the present invention provides a kind of electric power system based on USB Type-C interface, including as above the
Terminal unit based on USB Type-C interface described in Yi Fangmian, and described in second aspect based on USB Type-C interface
External equipment.
Terminal unit based on USB Type-C interface, external equipment and the electric power system that the embodiment of the present invention provides,
Determine in the USB Type-C interface of external equipment after the voltage x current demand of each power pins, control to supply according to power demands
Electricity the first feeder ear of module and the output of the second feeder ear, and control the first receiving terminal in handover module, the second receiving terminal, the
One outfan, the conducting state of the second outfan, thus provide two kinds of voltages to external equipment so that external equipment is in demand two
During the voltage kind varied in size, it is not necessary to voltage conversion circuit is set, it is achieved reduce the complexity of external equipment circuit, cost-effective
Purpose.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of the inventive method embodiment, required in embodiment being described below
The accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is some embodiments of the inventive method,
For those skilled in the art, on the premise of not paying creative work, it is also possible to obtain other according to these accompanying drawings
Accompanying drawing.
Fig. 1 is the power supply block diagram being currently based on USB Type-C interface；
Fig. 2 is the structural representation of present invention electric power system embodiment one based on USB Type-C interface；
Fig. 3 is the structural representation of present invention electric power system embodiment two based on USB Type-C interface；
Fig. 4 is the citing signal of the handover module of terminal unit in present invention electric power system based on USB Type-C interface
Figure.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
The a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, those skilled in the art are not having
Have and make the every other embodiment obtained under creative work premise, broadly fall into the scope of protection of the invention.
Term " first " in description and claims of this specification and above-mentioned accompanying drawing, " second ", " the 3rd ", "
Four " etc. (if present) is for distinguishing similar object, without being used for describing specific order or precedence.Should manage
Solve the data so used can exchange in the appropriate case, in order to embodiments of the invention described herein such as can be to remove
Order beyond those that here illustrate or describe is implemented.Additionally, term " includes " and " having " and theirs is any
Deformation, it is intended that cover non-exclusive comprising, such as, contain series of steps or the process of unit, method, system, product
Product or equipment are not necessarily limited to those steps or the unit clearly listed, but can include the most clearly listing or for this
Other step that a little processes, method, product or equipment are intrinsic or unit.
PD function is one of critical function of USB Type-C interface, and the terminal unit with USB Type-C interface is maximum
The power transmission of 20 volts (V), 5 amperes (A), i.e. 100 watts (W) can be supported, can be to have outside USB Type-C interface
Connect equipment, be powered such as notebook computer etc..In power supply process, terminal unit determines the electricity of external equipment demand by shaking hands
Pressure value and current value, transmitted voltage to external equipment by USB Type-C interface, thus power for external equipment.Specifically
, can be found in Fig. 1, Fig. 1 is the power supply block diagram being currently based on USB Type-C interface.
Refer to Fig. 1, terminal unit, external equipment are each provided with PD chip, USB Type-C interface, configurating channel
(Configuration Channel, CC) modules etc., terminal unit are additionally provided with main equipment power system modules, main equipment
Power system modules is connected with the USB Type-C interface on terminal unit by PD chip, external equipment is additionally provided with from setting
Stand-by power source system module, is connected with the USB Type-C interface external equipment by PD chip from device power supply (DPS) system module,
Terminal unit, the USB Type-C interface of external equipment are connected with each other.In power supply process, the CC module of terminal unit sets with external
Communicate between standby CC module, determine magnitude of voltage and the current value of external equipment demand, by USB Type-C interface by electricity
Pressure transmission is to external equipment, thus is external equipment, i.e. powers from equipment.
In above-mentioned power supply process, terminal unit can provide a kind of voltage.But, partial circumscription equipment generally requires multiple
The voltage that magnitude of voltage is different.Such as, the TV box separately positioned with TV, it needs 5V and 3.3V voltage, now, if TV
Box is as from equipment, and TV is as main equipment, it is assumed that main equipment can only provide the voltage of 5V, it is possible to meet from equipment 5V voltage
Demand, but for from the 3.3V of device requirement, needing the voltage conversion circuit by self from equipment, by 5V voltage change
For 3.3V, then could use.During Gai, need on equipment, arranging voltage conversion circuit so that multiple from circuitry
Miscellaneous, cost is high.
In view of this, the embodiment of the present invention provide a kind of terminal unit based on USB Type-C interface, external equipment and
Electric power system, it is achieved reduce the complexity of external equipment circuit, cost-effective purpose.Concrete, can be found in Fig. 2, Fig. 2 is this
Invent the structural representation of electric power system embodiment one based on USB Type-C interface.
As in figure 2 it is shown, in the embodiment of the present invention, electric power system based on USB Type-C interface mainly includes terminal unit
And external equipment, wherein, terminal unit includes:
Supply module 1, described supply module 1 is provided with the first feeder ear 11 and the second feeder ear 12；
Handover module 2, described handover module 2 be provided with the first receiving terminal 21 being connected with described first feeder ear 11 and
The second receiving terminal 22 that described second feeder ear 12 is connected, is additionally provided with the first power supply with described USB Type-C interface 3 and draws
The first connected outfan 23 of foot 31, the second outfan being connected with the second source pin 32 of described USB Type-C interface 3
24；
Processor 4, described processor 4 is configured to the CC pin of described USB Type-C interface 3 and receives external setting
Standby power demands, and according to described power demands, control the first feeder ear 11 and the second feeder ear 12 of described supply module 1
Output, and control first receiving terminal the 21, second receiving terminal the 22, first outfan the 23, second outfan in described handover module 2
The conducting state of 24, wherein said power demands is at least two voltage x current demand of described external equipment.
External equipment includes:
First by electricity module 5；
Second by electricity module 6；
Handover module 7, described handover module 7 is provided with and the described first the first outfan 71 being connected by electricity module 5, with
Described second the second outfan 72 being connected by electricity module 6, is additionally provided with and described USB Type-C interface 8 first power pins
81 the first receiving terminals 73 connected, the second receiving terminal 74 connected with described USB Type-C interface 8 second source pin 82；
Processor 9, described processor 9 for being subject to the voltage of electricity module 6 according to described first by electricity module 5 and described second
Current needs, generates power demands, and sends described power demands, wherein by the CC pin of described USB Type-C interface 8
Described power demands is at least two voltage x current demand of described external equipment.
Below, in conjunction with in Fig. 2 method of supplying power to based on USB Type-C interface to the present invention, USB Type-C interface and confession
Electric process is described in detail.
First, USB Type-C interface.
Concrete, in above-mentioned Fig. 2, the USB Type-C interface 3 on terminal unit is female, and port table is as shown in table 1, outward
The USB Type-C interface 8 connect on equipment is male, and port table is as shown in table 2.
Table 1
Table 2
According to table 1 and table 2: the USB Type-C interface 3 of terminal unit and the USB Type-C interface 8 of external equipment
It is respectively provided with at least 24 and connects terminal (pin) foot.As a example by the USB Type-C interface 3 of terminal unit, table 1 shows
Lower two-layer connect terminal, A1～A12 indicate respectively upper strata from left to right 12 connect terminal, B1～B12 indicate respectively lower floor by
Right-to-left 12 connects terminal.At least a part of which include four power pins (A4, the A9 on upper strata with B4, B9 of lower floor), 12
Differential terminal (A2, A3, A6, A7, A10, the A11 on upper strata and B2, B3, B6, B7, B10, B11 of lower floor), four grounded terminal
(A1, the A12 on upper strata and B1, B12 of lower floor), two selection terminals (A5 on upper strata and the B5 of lower floor) and two reservation terminals
(A8 on upper strata and the B8 of lower floor).
According to table 1: the USB Type-C interface 3 two rows terminal definition just order of terminal unit is contrary, because of
This, no matter the USB Type-C interface 8 of external equipment just slotting or anti-slotting, data cube computation is just as, and just i.e. supports
Anti-plug.
In the embodiment of the present invention, the power pins of terminal unit is allocated by processor 4, and controls in handover module 2
The conducting state of first receiving terminal the 21, second receiving terminal the 22, first outfan the 23, second outfan 24, processor 9 sets external
Standby power pins is allocated, and control first receiving terminal the 71, second receiving terminal the 72, first outfan 73 in handover module 7,
The conducting state of the second outfan 74, thus realize terminal unit and external equipment is provided the purpose of two kinds of voltages.
Secondly, operation principle.
Concrete, in power supply process, first, the processor 9 of external equipment is subject to electricity mould according to first by electricity module 5 and second
The voltage x current demand of block 6, generate power demands, this power demands be external equipment USB Type-C interface 8 in each power supply
The voltage x current demand of pin；Then, the processor 9 of external equipment carries out handshake communication with the processor 4 of terminal unit, will supply
Electricity demand is sent to the processor 4 of terminal unit.During Gai, power demands be passed through USB by the processor 9 of external equipment
The CC pin of Type-C interface 8, the CC pin of USB Type-C interface 3 are sent to the processor 4 of terminal unit；Then, terminal
The processor 4 of equipment, according to power demands, controls the first feeder ear 11 and output of the second feeder ear 12 of supply module 1, and
And, terminal unit according to and the negotiation of external equipment, according to the first receiving terminal 21 in the output control handover module 2 consulted, the
The conducting state of two receiving terminal the 22, first outfan the 23, second outfans 24, now external equipment is according to the result control consulted
The conducting state of first receiving terminal the 71, second receiving terminal the 72, first outfan the 73, second outfan 74 in handover module 7 processed.
The terminal unit based on USB Type-C interface that the embodiment of the present invention provides, is determining the USB of external equipment
In Type-C interface after the voltage x current demand of each power pins, according to power demands control supply module the first feeder ear and
The output of the second feeder ear, and control the first receiving terminal, the second receiving terminal, the first outfan, the second outfan in handover module
Conducting state, thus to external equipment provide two kinds of voltages so that external equipment when two kinds of voltage varied in size of demand,
Without arranging voltage conversion circuit, it is achieved reduce the complexity of external equipment circuit, cost-effective purpose.
In above-described embodiment, the processor 4 of terminal unit and the processor 9 of external equipment are during consulting, external
Equipment is it needs to be determined that the USB Type-C interface 3 of terminal unit and the USB Type-C interface 8 of external equipment are just to insert or instead
Insert, control handover module 7 the most again, thus realize supporting the purpose of positive anti-plug.Control with this compatible existing USB Type-C
Agreement.
Fig. 3 is the structural representation of present invention electric power system embodiment two based on USB Type-C interface.Refer to figure
3, the electric power system that the present embodiment provides, on the basis of above-mentioned Fig. 2, further, the handover module 2 of terminal unit also sets up
Have the 4th of the 3rd the outfan 25 and USB Type-C interface 3 that the 3rd power pins 33 with USB Type-C interface 3 is connected the
The 4th outfan 26 that power pins 34 is connected；Further, supply module 1 is additionally provided with the 3rd feeder ear 13 and the 4th power supply
End 14；Handover module 2 be additionally provided with the 3rd receiving terminal 27 being connected with the 3rd feeder ear 13, be connected with the 4th feeder ear 14
Four receiving terminals 28；Processor 4 is additionally operable to, according to power demands, control the 3rd feeder ear 13 and the 4th feeder ear of supply module 1
The output of 14, and control each receiving terminal and the conducting state of each outfan in handover module 2.Refer to Fig. 3 again, accordingly, outward
Connect the handover module 7 of equipment be additionally provided with the 3rd receiving terminal 75 that the 3rd power pins 83 with USB Type-C interface 8 is connected,
The 4th receiving terminal 76 being connected with the 4th power pins 84 of USB Type-C interface 8.Further, external equipment is provided with
Three are subject to electricity module 01 by electricity module 10 and the 4th；Handover module 7, is additionally provided with and the 3rd the 3rd output being connected by electricity module 10
77 ends and with the 4th by electricity the 4th outfan 78 that is connected of module 01；Processor 9 specifically for according to first by electricity module 5, the
Two are subject to electricity module the 10, the 4th by the voltage x current demand of electricity module 01 by electricity module the 6, the 3rd, generate power demands, and pass through
The CC pin of USB Type-C interface 8 sends power demands.
Concrete, in the present embodiment, external equipment arranges the 3rd by electricity module the 10, the 4th by electricity module 01, pass through
Processor 9 by the voltage x current demand of electricity module, generates power demands according to each, and then processor 9 will by handshake communication
Power demands is sent to the processor 4 of terminal unit.Terminal equipment side, by arrange on supply module 1 the 3rd feeder ear 13,
4th feeder ear 14, handover module 2 is arranged corresponding 3rd receiving terminal 27, the 4th receiving terminal 28, the 3rd outfan 25,
Four outfans 26, so that processor 4 according to power demands, can control each outfan output at most 4 of supply module 1
Road voltage, and then control each receiving terminal and the conducting state of each outfan in handover module 2 so that this 4 road voltage passes through respectively
First power pins 31 of USB Type-C interface 3, second source pin the 32, the 3rd power pins 33 and the 4th power pins
34 inputs are to external equipment.Thus, it is achieved terminal unit can be the purpose that external equipment provides most four road voltages.
Optionally, in each embodiment above-mentioned, the processor 4 of terminal unit is additionally provided with for detecting supply module 1 each
The detection terminal of feeder ear electric current, processor 4 is configured to: when the electric current of the first feeder ear 11 is more than predetermined threshold value, control
Handover module 2, turns on outfan idle in each outfan and the first receiving terminal 21.
Concrete, due to the maximum output supporting 20V, 5A of the USB Type-C interface 3 of terminal unit, USB Type-C connects
The current value that each power pins of mouth 3 can be born is limited.Therefore, for ensureing the normal transmission of voltage, processor 4 is according to cutting
The size of the current value of each receiving terminal of die change block 2, determines the quantity of the outfan that each receiving terminal turns on.The present invention implements
In example, terminal unit can export 1～4 road voltages, when the voltage of terminal unit output is 1～during 3 tunnel, if supply module 1
The electric current of the first feeder ear 11 is more than predetermined threshold value, then by defeated with multiple for the first receiving terminal 21 of being connected with this first feeder ear 11
Go out end conducting.It is to say, the voltage of terminal unit output is 1～3 tunnels, for the feeder ear that current ratio is bigger, this feeder ear
Can be connected with one or more receiving terminals of handover module 2, when the voltage of terminal unit output is 4 tunnel, supply module
Each feeder ear is connected with a receiving terminal of handover module 2.Such as, terminal unit provides two-way voltage, and this two-way voltage divides
Not exported by the first feeder ear and the second feeder ear, the electric current of the first feeder ear is 1A, and the electric current of the second feeder ear is 3A, then locate
Reason device 4 controls the first receiving terminal 21 of handover module 2 and turns on the first outfan 23, and the first outfan 23 connects with USB Type-C
First power pins 31 (such as A4 terminal) of mouth 3 connects, and the second receiving terminal 22 that processor 4 controls handover module 2 is defeated with second
Go out end the 24, the 3rd outfan the 25, the 4th outfan 26 to turn on, the second outfan 24 and the second source of USB Type-C interface 3
Pin 32 (such as B4 terminal) connects, the 3rd outfan 25 and the 3rd power pins 33 (such as A9 terminal) of USB Type-C interface 3
Connecting, the 4th outfan 26 is connected with the 4th power pins 34 (such as B9 terminal) of USB Type-C interface 3.Wherein, switching is worked as
The outfan of module 2 with when being connected with the power pins of USB Type-C interface 3 it can be understood as from power pins draw
Vbus, is connected the outfan of handover module 2 with the power pins with USB Type-C interface 3 by Vbus.
It should be noted that the configuration of the handover module 7 of the handover module 2 of terminal unit and external equipment is identical,
I.e. handover module 2 and handover module 7 all comprises multiple switch, and, each switch that handover module 2 comprises and terminal unit
Each receiving terminal and the connected mode of outfan, each switch comprised with handover module 7 and each receiving terminal of external equipment
And the connected mode of outfan is identical.Below, the handover module 2 of the lower terminal unit of main explanation, concrete, can be found in figure
4, Fig. 4 is the example schematic of the handover module of terminal unit in present invention electric power system based on USB Type-C interface.
Refer to Fig. 4, each receiving terminal of handover module 2 all can be turned on or off with each outfan, each output
End all can be turned on or off with each power pins of USB Type-C interface 3, and processor 4 is by controlling in handover module 2
Each switch state, technical solution of the present invention can be realized.Concrete, in power supply process, the processor 4 of terminal unit with
The processor 9 of external equipment carries out handshake communication, determines voltage x current demand, according to voltage x current demand, terminal unit and
External equipment is consulted, and according in each switch of the structure control handover module 2 consulted, which needs conducting, and which needs disconnected
Open, and turn on and the order etc. disconnected, thus it is defeated to control first receiving terminal the 21, second receiving terminal 22, first in handover module 2
Go out the conducting state of end the 23, second outfan 24.Further, the result of negotiation is also sent to external by CC pin by terminal unit
The processor 9 of equipment so that the processor 9 of external equipment is carried out according to the result of this negotiation, each comprising handover module 7
Control, thus the leading of first receiving terminal the 73, second receiving terminal the 74, first outfan the 71, second outfan 72 in handover module 7
Logical state.
Optionally, in each embodiment above-mentioned, the processor 4 of terminal unit is additionally operable to, and is detecting the first feeder ear 11
Electric current less than the first predetermined threshold value, the second feeder ear 12 electric current more than the second predetermined threshold value time, control will with first receive
The first outfan 23 that end 21 is connected disconnects with the first receiving terminal 21, and turns on the first outfan 23 and the second receiving terminal 22.
Concrete, the electric current of each feeder ear of the supply module 1 of terminal unit is not unalterable, and is as
Time or the change of other conditions and change, at this time, it may be necessary to adjust the receiving terminal of handover module 2 and the conducting shape of outfan
State.Such as, time initial, terminal unit provides two-way voltage, and this two-way voltage is defeated by the first feeder ear and the second feeder ear respectively
Going out, the electric current of the first feeder ear is 1A, and the electric current of the second feeder ear is 3A, then processor 4 controls the first reception of handover module 2
End 21 turns on the first outfan 23, and the first power pins 31 of the first outfan 23 and USB Type-C interface 3 is (such as A4 end
Son) connect, the second receiving terminal 22 that processor 4 controls handover module 2 is defeated with the second outfan the 24, the 3rd outfan the 25, the 4th
Going out end 26 conducting, the second outfan 24 is connected with the second source pin 32 (such as B4 terminal) of USB Type-C interface 3, and the 3rd is defeated
Go out end 25 to be connected with the 3rd power pins 33 (such as A9 terminal) of USB Type-C interface 3, the 4th outfan 26 and USB Type-
4th power pins 34 (such as B9 terminal) of C interface 3 connects.Through after a period of time, the first feeder ear determined by processor 4
Electric current is 2A, and the electric current of the second feeder ear is 2A, then processor controls the first receiving terminal 21 and the first outfan of handover module 2
23 and second outfan 24 turn on, control handover module 2 the second receiving terminal 22 disconnect with the second outfan 24, only defeated with the 3rd
Go out end 25 and the 4th outfan 26 turns on.Confession that is during Gai, properly functioning for ensureing electric power system, that first current value is reduced
The receiving terminal that electricity end is corresponding disconnects with outfan, then the output by receiving terminal corresponding for the feeder ear of current value increase with this disconnection
End conducting.
Optionally, in each embodiment above-mentioned, power demands also includes the power supply of USB Type-C interface 8 in external equipment
The electric sequence of pin；Processor 4 is additionally operable to determine the electric sequence of the power pins of USB Type-C interface 3, and according to upper
State electric sequence and control each receiving terminal and the conducting order of each outfan in handover module 2.
Concrete, for guarantee external equipment, each is subject to the power supply timing of electricity module, and the processor of terminal unit is according to powering on
Sequentially, being turned on each outfan by each receiving terminal of handover module 2 successively, power-on time difference can be with the processor of external equipment
9 consult to draw.
One of ordinary skill in the art will appreciate that: all or part of step realizing above-mentioned each method embodiment can be led to
The hardware crossing programmed instruction relevant completes.Aforesaid program can be stored in a computer read/write memory medium.This journey
Sequence upon execution, performs to include the step of above-mentioned each method embodiment；And aforesaid storage medium includes: ROM, RAM, magnetic disc or
The various media that can store program code such as person's CD.
Last it is noted that various embodiments above is only in order to illustrate technical scheme, it is not intended to limit；To the greatest extent
The present invention has been described in detail by pipe with reference to foregoing embodiments, it will be understood by those within the art that: it depends on
So the technical scheme described in foregoing embodiments can be modified, or the most some or all of technical characteristic is entered
Row equivalent；And these amendments or replacement, do not make the essence of appropriate technical solution depart from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. a terminal unit based on USB Type-C interface, it is characterised in that
Described terminal unit includes:
Supply module, described supply module is provided with the first feeder ear and the second feeder ear；
Handover module, described handover module is provided with the first receiving terminal being connected with described first feeder ear and described second and supplies
The second receiving terminal that electricity end is connected, is additionally provided with the first output that the first power pins with described USB Type-C interface is connected
End, the second outfan being connected with the second source pin of described USB Type-C interface；
Processor, described processor is configured to the power supply of the CC pin reception external equipment of described USB Type-C interface
Demand, and according to described power demands, control the first feeder ear and the output of the second feeder ear of described supply module, and control
In described handover module, the first receiving terminal, the second receiving terminal, the first outfan, the conducting state of the second outfan, wherein said
Power demands is at least two voltage x current demand of described external equipment.
Equipment the most according to claim 1, it is characterised in that
Described handover module be additionally provided with the 3rd outfan that the 3rd power pins with described USB Type-C interface is connected and
The 4th outfan that 4th power pins of described USB Type-C interface is connected.
Equipment the most according to claim 2, it is characterised in that
Described supply module is additionally provided with the 3rd feeder ear and the 4th feeder ear；
Described handover module be additionally provided be connected with described 3rd feeder ear the 3rd receiving terminal, be connected with described 4th feeder ear
The 4th receiving terminal；
Described processor is additionally operable to, according to described power demands, control the 3rd feeder ear and the 4th feeder ear of described supply module
Output, and control each receiving terminal and the conducting state of each outfan in described handover module.
4. according to the equipment described in claim 1-3 any one, it is characterised in that
Described processor is additionally provided with the detection terminal for detecting supply module each feeder ear electric current, and described processor is configured
For: when the electric current of described first feeder ear is more than predetermined threshold value, control described handover module, by idle defeated in each outfan
Go out end and described first receiving terminal conducting.
5. according to the equipment described in claim 1-3 any one, it is characterised in that
Described processor is additionally operable to, and is detecting that the electric current of the first feeder ear is less than the first predetermined threshold value, the electricity of the second feeder ear
When stream is more than the second predetermined threshold value, control the first outfan being connected with described first receiving terminal and described first receiving terminal
Disconnect, and turn on described first outfan and described second receiving terminal.
6. according to the equipment described in any one of claims 1 to 3, it is characterised in that
Described processor, is additionally operable to determine the electric sequence of the power pins of USB Type-C interface in terminal unit, according to institute
State electric sequence, control each receiving terminal and the conducting order of each outfan in described handover module.
7. an external equipment based on USB Type-C interface, it is characterised in that
Described external equipment includes:
First by electricity module；
Second by electricity module；
Handover module, described handover module is provided with and the described first the first outfan being connected by electricity module, with described second
The second outfan being connected by electricity module, is additionally provided with first connected with described USB Type-C interface the first power pins and connects
Receiving end, the second receiving terminal connected with described USB Type-C interface second source pin；
Processor, described processor for being subject to the voltage x current need of electricity module according to described first by electricity module and described second
Ask, generate power demands, and send described power demands, wherein said power supply by the CC pin of described USB Type-C interface
Demand is at least two voltage x current demand of described external equipment.
External equipment the most according to claim 7, it is characterised in that
Described handover module be additionally provided with the 3rd receiving terminal that the 3rd power pins with described USB Type-C interface is connected and
The 4th receiving terminal that 4th power pins of described USB Type-C interface is connected.
External equipment the most according to claim 8, it is characterised in that
Described external equipment is provided with the 3rd by electricity module and the 4th by electricity module；
Described handover module, is additionally provided with the 3rd outfan be connected by electricity module and with the described 4th by electricity mould
The 4th outfan that block is connected；
Described processor specifically for according to described first by electricity module, described second by electricity module, the described 3rd by electricity module,
The described 4th voltage x current demand being subject to electricity module, generates power demands, and by the CC pin of described USB Type-C interface
Send described power demands.
10. an electric power system based on USB Type-C interface, it is characterised in that include such as any one of claim 1～6 institute
The terminal unit stated, and the external equipment as described in any one of claim 7～9.
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| CN201910086931.0A CN109766298B (en) | 2016-07-19 | 2016-07-19 | Terminal equipment, external device and power supply system based on USB Type-C interface |
| CN201610570747.XA CN106201951B (en) | 2016-07-19 | 2016-07-19 | Terminal device, external equipment and power supply system based on USB Type-C interface |
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| CN201610570747.XA CN106201951B (en) | 2016-07-19 | 2016-07-19 | Terminal device, external equipment and power supply system based on USB Type-C interface |
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| CN201910086931.0A Division CN109766298B (en) | 2016-07-19 | 2016-07-19 | Terminal equipment, external device and power supply system based on USB Type-C interface |
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| CN201610570747.XA Active CN106201951B (en) | 2016-07-19 | 2016-07-19 | Terminal device, external equipment and power supply system based on USB Type-C interface |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109766298A (en) | 2019-05-17 |
| CN109766298B (en) | 2023-03-31 |
| CN106201951B (en) | 2019-03-19 |
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