CN105607514A - Electronic device, control method thereof and control device thereof - Google Patents
Electronic device, control method thereof and control device thereof Download PDFInfo
- Publication number
- CN105607514A CN105607514A CN201511020995.9A CN201511020995A CN105607514A CN 105607514 A CN105607514 A CN 105607514A CN 201511020995 A CN201511020995 A CN 201511020995A CN 105607514 A CN105607514 A CN 105607514A
- Authority
- CN
- China
- Prior art keywords
- usb interface
- power supply
- state
- stitch
- electronic equipment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Power Sources (AREA)
Abstract
The present invention discloses a control method applied to an electronic device with a USB interface. The control method comprises a step of detecting the state of a USB interface, and a step of delaying a first time when a condition that the USB interface is converted to a second state from a first state is determined and supplying power to the power pin of the USB interface. Based on the control method disclosed by the invention, in the process that a user inserts another electronic device into the USB interface of the electronic device, the power pin of the USB interface is not powered on, and thus the problem of surge voltage generated by user hand shaking can be prevented. The invention also discloses the corresponding control device and electronic device.
Description
Technical field
The invention belongs to electronic equipment control technology field, relate in particular to electronic equipment and control method thereof andControl device.
Background technology
USB (USB) interface have the hot plug, transmission speed of support soon be connected flexible etc.Advantage is widely used in electronic equipment.
When user is in the time that the USB interface of the first electronic equipment inserts the USB plug of the second electronic equipment, ifUser's hand is shaken, and will produce higher surge electricity at the USB interface place of the first electronic equipmentPress, the first electronic equipment is caused to adverse effect.
Therefore, how to avoid the USB interface of electronic equipment in the second electronic equipment insertion process, to occur waveGushing voltage, is those skilled in the art's problem demanding prompt solutions.
Summary of the invention
In view of this, the object of the present invention is to provide electronic equipment and control method thereof and control device,To avoid the USB interface of this electronic equipment to occur wave in the USB plug insertion process of another electronic equipmentGush voltage.
For achieving the above object, the invention provides following technical scheme:
The present invention discloses a kind of control method, is applied to first electronic equipment with USB interface, described inControl method comprises:
Detect the state of described USB interface;
When definite described USB interface is from the first state-transition is the second state, the time delay very first time, toThe power supply stitch power supply of described USB interface;
Wherein, described USB interface does not access the second electronics in USB interface described in the first state representation and establishesStandby, described USB interface accesses the second electronic equipment in USB interface described in the second state representation.
Preferably, above-mentioned control method also comprises: remove and be connected in described USB interface receiving instructionThe instruction of electronic equipment after, stop the power supply stitch power supply to described USB interface.
Preferably, the power supply stitch of described USB interface is connected with power supply;
The described power supply of the power supply stitch to described USB interface, is specially: control described power supply outputDefault voltage signal; The described power supply stitch power supply stopping to described USB interface, is specially: controlDescribed power supply stops output voltage signal.
Preferably, tandem tap device between the power supply stitch of described USB interface and power supply;
The described power supply of the power supply stitch to described USB interface, is specially: control described switching device conducting;The described power supply stitch power supply stopping to described USB interface, is specially: control described switching device and turn-off.
Preferably, in above-mentioned control method, the state of the described USB interface of described detection, comprising:
Detect the anodal stitch of data wire of described USB interface and the level value of data wire negative pole stitch;
When the level value of the anodal stitch of described data wire or described data wire negative pole stitch be on the occasion of time, definiteDescribed USB interface is in the second state;
In the time that the level value of the anodal stitch of described data wire and described data wire negative pole stitch is 0, determine instituteState USB interface in the first state.
The present invention also discloses a kind of control device, is applied to and has first of general-purpose serial bus USB interfaceElectronic equipment, described control device comprises:
Detecting unit, for detection of the state of described USB interface;
The first control module, at definite described USB interface from the first state-transition is the second state,The time delay very first time, the power supply stitch power supply by power supply to described USB interface;
Wherein, described USB interface does not access the second electronics in USB interface described in the first state representation and establishesStandby, described USB interface accesses the second electronic equipment in USB interface described in the second state representation.
Preferably, above-mentioned control device also comprises: the second control module, for receive instruction removeBe connected in after the instruction of electronic equipment of described USB interface, stop supplying to the power supply stitch of described USB interfaceElectricity.
Preferably, the power supply stitch of described USB interface is connected with power supply;
Described the first control module comprises the first control module, and described the first control module is used in definite instituteState USB interface from the first state-transition is the second state, the time delay very first time, control described power supply electricityDefault voltage signal is exported in source;
Described the second control module comprises the second control module, and described the second control module is for receivingInstruction removes after the instruction of the electronic equipment that is connected in described USB interface, controls described power supply and stopsOutput voltage signal.
Preferably, between the power supply stitch of described USB interface and described power supply, be in series with switching device;
Described the first control module comprises the 3rd control module, and described the 3rd control module is used in definite instituteState USB interface from the first state-transition is the second state, the time delay very first time, control described derailing switchPart conducting;
Described the second control module comprises the 4th control module, and described the 4th control module is for receivingInstruction removes after the instruction of the electronic equipment that is connected in described USB interface, controls described switching device and turn-offs.
Preferably, in above-mentioned control device, described detecting unit comprises:
Level value detection module, negative for detection of the anodal stitch of data wire and the data wire of described USB interfaceThe level value of utmost point stitch;
Processing module, at the level value of the anodal stitch of described data wire or described data wire negative pole stitch for justWhen value, described processing module determines that described USB interface is in the second state, at the anodal pin of described data wireThe level value of pin and described data wire negative pole stitch is at 0 o'clock, and described processing module is determined described USB interfaceIn the first state.
The present invention also discloses a kind of electronic equipment, comprises USB interface, chipset and power supply;
Described USB interface is connected with described chipset;
Described chipset detects the state of described USB interface, when definite described USB interface turns from the first stateBecome after the second state the time delay very first time, the power supply by described power supply to described USB interfaceStitch power supply; Wherein, described USB interface does not access the second electricity in USB interface described in the first state representationSubset, described USB interface accesses the second electronic equipment in USB interface described in the second state representation.
As can be seen here, beneficial effect of the present invention is:
Based on control method disclosed by the invention, the USB that electronic equipment detects self in running connectsThe state of mouth, if determine that USB interface is the second state (namely this USB interface by the first state-transitionInsert the second electronic equipment), after the time delay very first time, then to the power supply stitch power supply of USB interface.Because user inserts to USB interface in the process of another electronic equipment, the power supply stitch of this USB interface is illogicalElectricity, therefore can avoid occurring the problem due to user's hand shake generation surge voltage.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below will be to realityThe accompanying drawing of executing required use in example or description of the Prior Art is briefly described, apparently, belowAccompanying drawing in description is only embodiments of the invention, for those of ordinary skill in the art, notPay under the prerequisite of creative work, other accompanying drawing can also be provided according to the accompanying drawing providing.
Fig. 1 is the structural representation of USB interface;
Fig. 2 is the flow chart of a kind of control method disclosed by the invention;
Fig. 3 is the structural representation of a kind of electronic equipment disclosed by the invention;
Fig. 4 is the flow chart of the method for the state of detection USB interface disclosed by the invention;
Fig. 5 is the structural representation of a kind of control device disclosed by the invention;
Fig. 6 is the structural representation of another kind of control device disclosed by the invention;
Fig. 7 is the structural representation of detecting unit disclosed by the invention.
Detailed description of the invention
Fig. 1 shows the structure of USB interface, and this USB interface comprises power supply stitch Vcc, data wire positive poleStitch Data+, data wire negative pole stitch Data-and ground pin GND.
In existing electronic equipment, the power supply stitch Vcc of USB interface continues to be powered, and power supply is logicalNormal is 5V. In the time that the USB plug of another equipment is inserted the USB interface of this electronic equipment by user, ifThere is shake in user's hand, will produce surge voltage at the USB interface of electronic equipment.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried outDescribe clearly and completely, obviously, described embodiment is only the present invention's part embodiment, andNot whole embodiment. Based on the embodiment in the present invention, those of ordinary skill in the art are not doingGo out the every other embodiment obtaining under creative work prerequisite, all belong to the scope of protection of the invention.
The present invention discloses a kind of control method, and this control method is applied to the electronic equipment with USB interface.Based on control method disclosed by the invention, can avoid the USB interface of electronic equipment at another electronic equipmentUSB plug insertion process in there is surge voltage.
For the ease of statement, the present invention is designated as the by carrying out the electronic equipment of control method disclosed by the inventionOne electronic equipment, is designated as the second electronic equipment by other electronic equipments.
Referring to Fig. 2, the flow chart that Fig. 2 is a kind of control method disclosed by the invention. This control method comprises:
Step S21: the state that detects USB interface.
If electronic equipment is provided with multiple USB interfaces, can detect one by one according to predetermined order soThe state of each USB interface.
Step S22: when definite USB interface is from the first state-transition is the second state, the time delay very first time,To the power supply stitch power supply of this USB interface.
Wherein, USB interface (does not access the second electronic equipment in this USB interface of the first state representation yetThat this USB interface is in idle state), USB interface is in this USB interface of the second state representation access theTwo electronic equipments.
The USB interface of the first electronic equipment is in the time of idle state, and its power supply stitch is not switched on. UserInsert in the process of USB plug of the second electronic equipment the first electronics to the USB interface of the first electronic equipmentThe power supply stitch of the USB interface of equipment is in "on" position not, even if shake appears in user's hand, alsoCan not produce surge voltage at the USB interface of the first electronic equipment.
In enforcement, this very first time can be set to 2S, but the value of the very first time is not limited thereto. OnlyWant user within the very first time, the USB plug of the second electronic equipment to be stablized and to be inserted in the first electronic equipmentUSB interface in.
Based on control method disclosed by the invention, the USB that electronic equipment detects self in running connectsThe state of mouth, if determine that USB interface is the second state (namely this USB interface by the first state-transitionInsert the second electronic equipment), after the time delay very first time, then to the power supply stitch power supply of USB interface.Because user inserts to USB interface in the process of another electronic equipment, the power supply stitch of this USB interface is illogicalElectricity, therefore can avoid occurring the problem due to user's hand shake generation surge voltage.
On the basis of control method shown in Fig. 2, following steps can also be set: receive instruction removeBe connected in after the instruction of electronic equipment of USB interface, stop the power supply stitch power supply to this USB interface.
In enforcement, the power supply stitch of USB interface in the first electronic equipment can be connected with power supply.
Accordingly, when definite USB interface is from the first state-transition is the second state, the time delay very first time,To the power supply stitch power supply of this USB interface, be specially: when definite USB interface is the from the first state-transitionAfter two-state, the time delay very first time, control power supply and export default voltage signal.
Receive instruction remove after the instruction of the electronic equipment that is connected in USB interface, stop to this USBThe power supply stitch power supply of interface, is specially: remove the electronics that is connected in USB interface and establish receiving instructionAfter standby instruction, control power supply and stop output voltage signal.
That is to say, in electronic equipment, be configured to the power supply of USB interface power supply, when determiningUSB interface, from the first state-transition is the second state, the time delay very first time, is controlled power supply outputDefault voltage signal, thus be USB interface power supply, be connected in USB when determining to receive to indicate to removeAfter the instruction of the electronic equipment of interface, control power supply and stop output voltage signal, make USB interfaceIn "on" position not.
In the situation that the first electronic equipment has multiple USB interface, can be by the power supply of each USB interfaceStitch is connected to power output ends different in power supply.
In definite the first electronic equipment, certain USB interface, from the first state-transition is the second state, prolongsTime the very first time, control the respective electrical source output terminal of power supply and export default voltage signal, thereby beThis USB interface power supply, other power output ends of controlling power supply still keep current state.
Receive instruction remove after the instruction of the electronic equipment that is connected in a certain USB interface, control power supplyThe respective electrical source output terminal of power supply stops output voltage signal, controls other power output ends of power supplyStill keep current state.
In enforcement, can also be to the annexation between USB interface and power supply in the first electronic equipmentImprove, shown in Figure 3. Concrete: at power supply stitch Vcc and the power supply 2 of usb 1Between tandem tap device 4, the control end of switching device 4 is connected with chipset 3. At the first electronic equipment toolHave in the situation of multiple USB interfaces, need between the power supply stitch of each USB interface and power supply, divideOther tandem tap device.
Accordingly, when definite USB interface is from the first state-transition is the second state, the time delay very first time,To the power supply stitch power supply of this USB interface, be specially: when definite USB interface is the from the first state-transitionAfter two-state, the time delay very first time, gauge tap break-over of device.
Receive instruction remove after the instruction of the electronic equipment that is connected in USB interface, stop to this USBThe power supply stitch power supply of interface, is specially: remove the electronics that is connected in USB interface and establish receiving instructionAfter standby instruction, gauge tap device turn-offs.
That is to say, be series at the switch between power supply stitch and the power supply of USB interface by controlThe on off operating mode of device, realizes and provides default operating voltage to USB interface, or controls USB interface placeIn "on" position not.
In the above-mentioned disclosed control method of the present invention, detect the state of USB interface, adopt shown in Fig. 4Mode, comprising:
Step S41: detect the anodal stitch of data wire of USB interface and the level value of data wire negative pole stitch.
Step S42: when the level value of the anodal stitch of data wire or data wire negative pole stitch be on the occasion of time, definiteUSB interface is in the second state.
Step S43: in the time that the level value of the anodal stitch of data wire and data wire negative pole stitch is 0, determineUSB interface is in the first state.
The USB interface of the first electronic equipment in the time of idle state, the anodal stitch Data+ of its data wire and numberVoltage according to line negative pole stitch Data-is 0, establishes when the USB plug of the second electronic equipment inserts the first electronicsAfter standby USB interface, the anodal stitch Data+ of the data wire of USB interface or data in the first electronic equipmentThe voltage of line negative pole stitch Data-can be pulled to a magnitude of voltage (being generally 3V left and right). Concrete: asFruit the second electronic equipment is high-speed equipment (its data transmission bauds outpace threshold value), the first electronicsIn equipment, the voltage of the anodal stitch Data+ of the data wire of USB interface rises, if the second electronic equipment is lowSpeed equipment (its data transmission bauds is lower than threshold speed), the number of USB interface in the first electronic equipmentVoltage according to line negative pole stitch Data-rises. Therefore, by detecting the anodal stitch of data wire in USB interfaceThe voltage of Data+ and data wire negative pole stitch Data-, can determine that this USB interface in the first state stillIn the second state.
In enforcement, also can adopt other modes to detect the state of USB interface. For example: at the first electronicsA contact switch is set in the USB interface of equipment, and this contact switch is in the raw time, produces theOne level signal, this contact switch, in the time of squeezed state, produces second electrical level signal. When the second electricityWhen the USB plug of subset inserts the USB interface of the first electronic equipment, this contact switch is extruded, and firstElectronic equipment detects the second electrical level signal at contact switch place, determines that USB interface is in the second state.If the first electronic equipment detects first level signal at electric shock switch place, determine USB interface inThe first state.
The above-mentioned control method that is applied to electronic equipment that discloses of the present invention, corresponding, the present invention openly shouldFor the control device of electronic equipment. Below about the description of control device with above about control methodDescription can cross-references.
Referring to Fig. 5, the structural representation that Fig. 5 is a kind of control device disclosed by the invention. This control deviceBe applied to first electronic equipment with USB interface, comprise detecting unit 100 and the first control module 200.
Wherein:
Detecting unit 100, for detection of the state of USB interface.
The first control module 200, at definite USB interface from the first state-transition is the second state,The time delay very first time, the power supply stitch power supply by power supply to USB interface. Wherein, USB interfaceDo not access the second electronic equipment in this USB interface of the first state representation, USB interface is in the second state tableLevy this USB interface and access the second electronic equipment.
In enforcement, this very first time can be set to 2S, but the value of the very first time is not limited thereto. OnlyWant user within the very first time, the USB plug of the second electronic equipment to be stablized and to be inserted in the first electronic equipmentUSB interface in.
Based on control device disclosed by the invention, the USB that electronic equipment detects self in running connectsThe state of mouth, if determine that USB interface is the second state (namely this USB interface by the first state-transitionInsert the second electronic equipment), after the time delay very first time, then to the power supply stitch power supply of USB interface.Because user inserts to USB interface in the process of another electronic equipment, the power supply stitch of this USB interface is illogicalElectricity, therefore can avoid occurring the problem due to user's hand shake generation surge voltage.
As another kind of embodiment, on the basis of control device shown in Fig. 1, can further arrange secondControl module 300, as shown in Figure 6. The second control module 300 is for removing and be connected in receiving instructionAfter the instruction of the electronic equipment of USB interface, stop the power supply stitch power supply to this USB interface.
In enforcement, the power supply stitch of USB interface in the first electronic equipment can be connected with power supply.
Under this structure, the first control module 200 comprises the first control module. The first control module is used forFrom the first state-transition is the second state, the time delay very first time, control power supply electricity at definite USB interfaceDefault voltage signal is exported in source.
The second control module 300 comprises the second control module. The second control module for receive instruction moveExcept being connected in after the instruction of electronic equipment of USB interface, control power supply and stop output voltage signal.
In the situation that the first electronic equipment has multiple USB interface, can be by the power supply of each USB interfaceStitch is connected to power output ends different in power supply.
Certain USB in definite the first electronic equipment of the first control module in the first control module 200 connectsMouthful from the first state-transition is the second state, the time delay very first time, control the corresponding power supply of power supplyOutput is exported default voltage signal, thereby is this USB interface power supply, and the first control module 200 is controlledOther power output ends of power supply still keep current state.
The second control module in the second control module 300 removes and is connected in a certain USB receiving instructionAfter the instruction of the electronic equipment of interface, the respective electrical source output terminal of controlling power supply stops output voltage letterNumber, other power output ends of controlling power supply still keep current state.
In enforcement, can also be in the first electronic equipment between the power supply stitch and power supply of USB interfaceTandem tap device. In the situation that the first electronic equipment has multiple USB interface, need to be at each USBDifference tandem tap device between the power supply stitch of interface and power supply.
Under this structure, the first control module 200 comprises the 3rd control module. The 3rd control module is used forAt definite USB interface from the first state-transition is the second state, the time delay very first time, gauge tap devicePart conducting.
The second control module 300 comprises the 4th control module. The 4th control module for receive instruction moveExcept being connected in after the instruction of electronic equipment of USB interface, gauge tap device turn-offs.
In addition, in the above-mentioned disclosed control device of the present invention, detecting unit 100 can adopt the institute as Fig. 7The structure of showing, comprising:
Level value detection module 101, for detection of the anodal stitch of data wire and the data wire negative pole of USB interfaceThe level value of stitch;
Processing module 102, at the anodal stitch of data wire of USB interface or the level value of data wire negative pole stitchFor on the occasion of time, processing module 102 determines that described USB interface is in the second state, in the data of USB interfaceThe level value of the anodal stitch of line and described data wire negative pole stitch is at 0 o'clock, and processing module 102 is determined USBInterface is in the first state.
The present invention also discloses a kind of electronic equipment, and this electronic equipment comprises USB interface, chipset and power supplyPower supply. Wherein:
USB interface is connected with chipset.
Chipset detects the state of USB interface, when definite USB interface is the second state from the first state-transitionAfter, the time delay very first time, the power supply stitch power supply by power supply to USB interface. Wherein, USBInterface does not access the second electronic equipment in this USB interface of the first state representation, and USB interface is in secondThis USB interface of state representation accesses the second electronic equipment.
Electronic equipment disclosed by the invention detects the state of the USB interface of self in running, asFruit determines that USB interface is that (namely this USB interface inserts the second electronics to the second state by the first state-transitionEquipment), after the time delay very first time, then to the power supply stitch power supply of USB interface. Due to user toUSB interface inserts in the process of another electronic equipment, and the power supply stitch of this USB interface is not switched on, and therefore canEnough avoid occurring producing due to the shake of user's hand the problem of surge voltage.
In enforcement, chipset detects the state of USB interface, can adopt mode disclosed above.
As preferred version, chipset also for: remove the electricity that is connected in USB interface receiving instructionAfter the instruction of subset, stop the power supply stitch power supply to this USB interface.
As a kind of embodiment, in electronic equipment, the power supply stitch of USB interface is connected with power supply.Accordingly, chipset at definite USB interface from the first state-transition is the second state, when time delay the firstBetween, control power supply and export default voltage signal; Chipset removes and is connected in USB receiving instructionAfter the instruction of the electronic equipment of interface, control power supply and stop output voltage signal.
As another kind of embodiment, in electronic equipment between the power supply stitch and power supply of USB interfaceCan tandem tap device, the control end of this switching device is connected with chipset, as shown in Figure 3. Accordingly,Chipset, the time delay very first time, is controlled at definite USB interface from the first state-transition is the second stateSwitching device conducting; Chipset removes the instruction of the electronic equipment that is connected in USB interface receiving instructionAfter, gauge tap device turn-offs.
Finally, also it should be noted that, in this article, the relational terms such as the first and second gradesOnly be used for an entity or operation and another entity or operating space to separate, and not necessarily requirementOr imply the relation or the order that between these entities or operation, there are any this reality. And, artLanguage " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, therebyThe process, method, article or the equipment that make to comprise a series of key elements not only comprise those key elements, andAlso comprise other key elements of clearly not listing, or be also included as this process, method, article orThe key element that person's equipment is intrinsic. In the situation that there is no more restrictions, by statement " comprising ... "The key element limiting, and be not precluded within process, method, article or the equipment that comprises described key element and also depositAt other identical element.
In this description, each embodiment adopts the mode of going forward one by one to describe, and each embodiment stressesBe and the difference of other embodiment, between each embodiment identical similar part mutually referring to.For the disclosed device of embodiment, because it corresponds to the method disclosed in Example, so describeFairly simple, relevant part illustrates referring to method part.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field can be realized or useThe present invention. To be aobvious and easy for those skilled in the art to the multiple amendment of these embodimentSee, General Principle as defined herein can be in the situation that not departing from the spirit or scope of the present invention,Realize in other embodiments. Therefore, the present invention will can not be restricted to these embodiment shown in this article,But to meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (11)
1. a control method, is applied to first electronic equipment with general-purpose serial bus USB interface,It is characterized in that, described control method comprises:
Detect the state of described USB interface;
When definite described USB interface is from the first state-transition is the second state, the time delay very first time, toThe power supply stitch power supply of described USB interface;
Wherein, described USB interface does not access the second electronics in USB interface described in the first state representation and establishesStandby, described USB interface accesses the second electronic equipment in USB interface described in the second state representation.
2. control method according to claim 1, is characterized in that, also comprises:
Receive instruction remove after the instruction of the electronic equipment that is connected in described USB interface, stop to instituteState the power supply stitch power supply of USB interface.
3. control method according to claim 2, is characterized in that, the power supply of described USB interfaceStitch is connected with power supply;
The described power supply of the power supply stitch to described USB interface, is specially: control described power supply outputDefault voltage signal;
The described power supply stitch power supply stopping to described USB interface, is specially: control described power supplyStop output voltage signal.
4. control method according to claim 2, is characterized in that, the power supply of described USB interfaceTandem tap device between stitch and power supply;
The described power supply of the power supply stitch to described USB interface, is specially: control described switching device conducting;
The described power supply stitch power supply stopping to described USB interface, is specially: control described switching deviceTurn-off.
5. according to the control method described in any one in claim 1 to 4, it is characterized in that described inspectionThe state of surveying described USB interface, comprising:
Detect the anodal stitch of data wire of described USB interface and the level value of data wire negative pole stitch;
When the level value of the anodal stitch of described data wire or described data wire negative pole stitch be on the occasion of time, definiteDescribed USB interface is in the second state;
In the time that the level value of the anodal stitch of described data wire and described data wire negative pole stitch is 0, determine instituteState USB interface in the first state.
6. a control device, is applied to first electronic equipment with general-purpose serial bus USB interface,It is characterized in that, described control device comprises:
Detecting unit, for detection of the state of described USB interface;
The first control module, at definite described USB interface from the first state-transition is the second state,The time delay very first time, the power supply stitch power supply by power supply to described USB interface;
Wherein, described USB interface does not access the second electronics in USB interface described in the first state representation and establishesStandby, described USB interface accesses the second electronic equipment in USB interface described in the second state representation.
7. control device according to claim 6, is characterized in that, also comprises:
The second control module, for removing the electronic equipment that is connected in described USB interface receiving instructionInstruction after, stop the power supply stitch power supply to described USB interface.
8. control device according to claim 7, is characterized in that, the power supply of described USB interfaceStitch is connected with power supply;
Described the first control module comprises the first control module, and described the first control module is used in definite instituteState USB interface from the first state-transition is the second state, the time delay very first time, control described power supply electricityDefault voltage signal is exported in source;
Described the second control module comprises the second control module, and described the second control module is for receivingInstruction removes after the instruction of the electronic equipment that is connected in described USB interface, controls described power supply and stopsOutput voltage signal.
9. control device according to claim 7, is characterized in that, the power supply of described USB interfaceBetween stitch and described power supply, be in series with switching device;
Described the first control module comprises the 3rd control module, and described the 3rd control module is used in definite instituteState USB interface from the first state-transition is the second state, the time delay very first time, control described derailing switchPart conducting;
Described the second control module comprises the 4th control module, and described the 4th control module is for receivingInstruction removes after the instruction of the electronic equipment that is connected in described USB interface, controls described switching device and turn-offs.
10. according to the control device described in any one in claim 6 to 9, it is characterized in that, described inDetecting unit comprises:
Level value detection module, negative for detection of the anodal stitch of data wire and the data wire of described USB interfaceThe level value of utmost point stitch;
Processing module, at the level value of the anodal stitch of described data wire or described data wire negative pole stitch for justWhen value, described processing module determines that described USB interface is in the second state, at the anodal pin of described data wireThe level value of pin and described data wire negative pole stitch is at 0 o'clock, and described processing module is determined described USB interfaceIn the first state.
11. 1 kinds of electronic equipments, is characterized in that, comprise USB interface, chipset and power supply;
Described USB interface is connected with described chipset;
Described chipset detects the state of described USB interface, when definite described USB interface turns from the first stateBecome after the second state the time delay very first time, the power supply by described power supply to described USB interfaceStitch power supply; Wherein, described USB interface does not access the second electricity in USB interface described in the first state representationSubset, described USB interface accesses the second electronic equipment in USB interface described in the second state representation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511020995.9A CN105607514A (en) | 2015-12-29 | 2015-12-29 | Electronic device, control method thereof and control device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511020995.9A CN105607514A (en) | 2015-12-29 | 2015-12-29 | Electronic device, control method thereof and control device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105607514A true CN105607514A (en) | 2016-05-25 |
Family
ID=55987522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511020995.9A Pending CN105607514A (en) | 2015-12-29 | 2015-12-29 | Electronic device, control method thereof and control device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105607514A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106911127A (en) * | 2017-03-06 | 2017-06-30 | 联想(北京)有限公司 | A kind of power source supply method and electronic equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799715A (en) * | 2010-03-18 | 2010-08-11 | 中兴通讯股份有限公司 | Device for power protection against hot-plug function of hard disk interface and implementation method thereof |
| CN101969192A (en) * | 2010-09-09 | 2011-02-09 | 惠州Tcl移动通信有限公司 | Communication terminal for protecting universal serial bus (USB) power supply equipment |
| CN103064489A (en) * | 2011-10-21 | 2013-04-24 | 华为终端有限公司 | Method for selecting internal circuit according to conditions of universal serial bus (USB) interface and terminal |
| US20130175977A1 (en) * | 2011-07-07 | 2013-07-11 | Voxx International Corporation | Current selectable usb charger |
| CN203759164U (en) * | 2014-03-22 | 2014-08-06 | 深圳市伟文无线通讯技术有限公司 | Circuit for detecting access state of USB load equipment |
| CN104102316A (en) * | 2013-04-07 | 2014-10-15 | 鸿富锦精密电子(天津)有限公司 | Surge current regulating circuit |
-
2015
- 2015-12-29 CN CN201511020995.9A patent/CN105607514A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799715A (en) * | 2010-03-18 | 2010-08-11 | 中兴通讯股份有限公司 | Device for power protection against hot-plug function of hard disk interface and implementation method thereof |
| CN101969192A (en) * | 2010-09-09 | 2011-02-09 | 惠州Tcl移动通信有限公司 | Communication terminal for protecting universal serial bus (USB) power supply equipment |
| US20130175977A1 (en) * | 2011-07-07 | 2013-07-11 | Voxx International Corporation | Current selectable usb charger |
| CN103064489A (en) * | 2011-10-21 | 2013-04-24 | 华为终端有限公司 | Method for selecting internal circuit according to conditions of universal serial bus (USB) interface and terminal |
| CN104102316A (en) * | 2013-04-07 | 2014-10-15 | 鸿富锦精密电子(天津)有限公司 | Surge current regulating circuit |
| CN203759164U (en) * | 2014-03-22 | 2014-08-06 | 深圳市伟文无线通讯技术有限公司 | Circuit for detecting access state of USB load equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106911127A (en) * | 2017-03-06 | 2017-06-30 | 联想(北京)有限公司 | A kind of power source supply method and electronic equipment |
| CN106911127B (en) * | 2017-03-06 | 2019-01-15 | 联想(北京)有限公司 | A kind of power source supply method and electronic equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105630724B (en) | A kind of USB Type C system control circuits | |
| JP6730888B2 (en) | Electronic device and control method thereof | |
| TWI507873B (en) | Power adapter and electronic device | |
| TW200625328A (en) | A memory system, a memory device, a memory controller and method thereof | |
| CN104505888A (en) | Mobile terminal and charging device | |
| CN108027780B (en) | Memory content protection circuit | |
| CN104505890A (en) | Mobile terminal | |
| WO2018072443A1 (en) | Charging method, apparatus, and data storage medium | |
| CN206524658U (en) | Portable power source pin multiplexing circuit | |
| CN105095137A (en) | Control chip and connection module | |
| CN105607514A (en) | Electronic device, control method thereof and control device thereof | |
| CN206850404U (en) | A kind of line under-voltage protection circuit with the input of retarding window wide scope | |
| CN103746684A (en) | System and method for preventing power supply from flowing backwards | |
| CN204376457U (en) | A kind of mobile terminal | |
| CN104159359A (en) | Electric torch drive circuit and mobile terminal | |
| CN106059553B (en) | Device for realizing Ra resistance in USB Type-C EMCA cable | |
| CN106598192B (en) | A kind of power supply unit, method and power supply system | |
| CN106294223B (en) | It is a kind of realize server network interface card multiplexing device, method and system | |
| CN203760209U (en) | MHL cable and MHL cable hot plug detecting system | |
| CN106972461A (en) | A kind of line under-voltage protection circuit inputted with retarding window wide scope | |
| CN203241994U (en) | Hot-plug control device | |
| CN204731378U (en) | A kind of USB control chip test circuit | |
| CN211979174U (en) | Cable insertion detection circuit | |
| CN201127057Y (en) | Power supply and protective circuit for USB interface as well as digital television receiver having the same | |
| CN205375457U (en) | Reduce current rush's circuit when portable hard drive grafting USB interface |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160525 |
|
| RJ01 | Rejection of invention patent application after publication |