CN105162213A - USB controller, and device - Google Patents
USB controller, and device Download PDFInfo
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- CN105162213A CN105162213A CN201510666094.0A CN201510666094A CN105162213A CN 105162213 A CN105162213 A CN 105162213A CN 201510666094 A CN201510666094 A CN 201510666094A CN 105162213 A CN105162213 A CN 105162213A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
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Abstract
The invention discloses a USB (Universal Serial Bus) controller, comprising a USB port, a USB interface module, a detection module, a USB switch control module and a short circuit module. The USB port is used for connecting with extraneous equipment through a USB data line; the USB interface module is used for providing USB data transmission; the detection module is used for detecting inputted high level signals and low level signals; the USB switch control module is in connection with the detection module, and is used for receiving level signals detected by the detection module, switching the connection between a switch and the USB interface module according to received high level signals, and switching the connection between the switch and the short circuit module according to received low level signals; the short circuit module connects data ports in a short circuit mode through resistors. According to the technical scheme, the USB port can be rapidly switched to a rapid charging mode, thereby increasing the charging speed of USB port equipment.
Description
Technical field
The present invention relates to electronic communication field, particularly relate to a kind of USB control device and equipment.
Background technology
Under usb protocol, the mobile terminal USB port that such as mobile phone, panel computer connect terminal equipment by USB (UniversalSerialBus, USB) data wire carries out data communication and charging.When mobile phone is connected on notebook by USB2.0 interface, two data lines D+ of USB interface and the data-signal of D-detected, acquiescence enters data pattern.Because USB2.0 agreement specifies that USB port can only go out the electric current of 500mA, thus the power receiving equipments such as mobile phone can by the power-supply management system of self (PMU) initiatively the charging current of standard is reduced to 500mA by 1.5A or 1A.The battery capacity of smart mobile phone is all more than 2000mAh mostly now, so want that the electric current of the 500mA by acquiescence is full of high capacity cell, compared with 1.5A or the 1A charging current of charger standard, under USB interface data pattern, actual charging rate can be very slow.
Therefore, be necessary to provide a kind of USB control device, improve the charging rate of existing USB port.
Summary of the invention
For this reason, the invention provides a kind of USB control device and equipment, solve the technical problem that in prior art, USB port charging rate is slow.
In one embodiment of the invention, a kind of USB control device is provided, comprise USB port, usb interface module, detection module, USB switch control module and short circuit module, described USB port is used for being connected with external device by USB data line, described usb interface module is used for providing USB data transmission, described detection module is for detecting high level signal and the low level signal of input, described USB switch control module is connected with described detection module, for receiving the level signal that described detection module detects, and to be connected with described usb interface module according to the high level signal diverter switch received and to connect, and to be connected with described short circuit module according to the low level signal diverter switch received and to connect, described short circuit module by resistance by its FPDP short circuit.
Preferably, the resistance of described resistance is less than 200 ohm.
Preferably, described USB control device also comprises the level signal output module be connected with described detection module, for exporting high level signal and low level signal.
Preferably, described level signal output module is that bus expands device, and described bus is expanded device and exported high level signal and low level signal according to control command configuration.
Preferably, described bus is expanded device and can be exported high level signal and low level signal according to the control command configuration of CPU, software or application.
Preferably, described level signal output module is fork shift switch, and described fork shift switch controls exports high level signal and low level signal.
Preferably, described USB switch control module is electronic switch, first pin of described electronic switch is connected with described detection module, D+, D-data pins is connected with FPDP D+, the D-of described usb interface module respectively, HSD1+, HSD1-pin is connected with described short circuit module, HSD2+, HSD2-pin is connected with described USB port, when described first pin SEL is high level, D+, D-pin is connected with HSD1+, HSD1-pin switch respectively, when described first pin SEL is low level, D+, D-pin is connected with HSD2+, HSD2-pin switch respectively.
Preferably, described electronic switch
pin, GND pin are with reference to ground connection, and VCC pin is connected with power supply.
Preferably, described USB switch control module is the electronic switch of model FSUSB30MUX, and the first pin SEL is connected with described detection module,
pin, GND pin are with reference to ground connection, VCC pin is connected with power supply, D+, D-data pins is connected with D+, D-port of described usb interface module respectively, HSD1+, HSD1-pin is connected with described short circuit module, HSD2+, HSD2-pin is connected with described USB port, and when described first pin SEL is high level, D+, D-pin is connected with HSD1+, HSD1-pin switch respectively, when described first pin SEL is low level, D+, D-pin is connected with HSD2+, HSD2-pin switch respectively.
In another embodiment of the present invention, also provide a kind of equipment, have USB port, it comprises above-mentioned USB control device.
USB control device provided by the invention and equipment, the low and high level control signal detected by detection module is switched USB switch control module and is connected with usb interface module and short circuit module respectively, change the signal of usb data port D+ end and D-end, the output that such USB port equipment is thought to insert standard charger interface and provided 5V/2A, realize the data transmission module of USB port and the switching of fast charge mode, and promote the charging rate of USB port equipment.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described.Apparently, the accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of USB control device in first embodiment of the invention.
Fig. 2 is the schematic diagram of the USB switch control module of USB control device in first embodiment of the invention.
Fig. 3 is that the pin of the USB switch control module of USB control device in first embodiment of the invention illustrates schematic diagram.
Fig. 4 be the USB switch control module of USB control device in first embodiment of the invention S pin and
the true value schematic diagram of pin.
Fig. 5 is the control schematic diagram of the USB switch control module of USB control device in first embodiment of the invention.
Fig. 6 is the detailed circuit schematic of USB control device in first embodiment of the invention.
Fig. 7 is the structural representation of USB control device in second embodiment of the invention.
Fig. 8 is the structural representation of USB control device in third embodiment of the invention.
Fig. 9 is the circuit diagram of the level signal output module fork shift switch of USB control device in third embodiment of the invention.
Figure 10 is the detailed circuit schematic of USB control device in third embodiment of the invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, more detailed description is further done to technical scheme of the present invention.Obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite of not making creative work, all should belong to the scope of protection of the invention.
Present general inventive concept of the present invention is: be connected with usb interface module and short circuit module respectively by bus expansion device GPIO or electronics fork shift switch output low and high level control signal switching electronic switch and connect, change the signal of usb data port D+ end and D-, the output that such USB port equipment is thought to insert standard charger interface and provided 5V/2A, realize the data transmission module of USB port and the switching of fast charge mode, promote the charging rate of USB port.
See Fig. 1, first embodiment of the invention provides a kind of USB control device, comprises USB port 20, usb interface module 30, detection module 40, USB switch control module 50 and short circuit module 60.
Wherein, described USB port 20 is for being connected with external device by USB data line, and described usb interface module 30 is for providing USB data transmission pattern.Data line interface and the notebook computer USB port 20 of mobile phone is connected as by USB cellular phone data line, under usb protocol, mobile phone and notebook computer can carry out transfer of data by described usb interface module 30, the electric current of the 500mA that notebook computer USB port 20 can also be utilized to provide charges to mobile phone, and visible USB port 20 can realize data-transmission mode and charge mode two kinds of mode of operations.
Described detection module 40 is for detecting high level signal and the low level signal of input.Concrete, the high level signal of described input and low level signal are according to CPU (CentralProcessingUnit, central processing unit), MCU (MicrocontrollerUnit, micro-control unit), GPIO (GeneralPurposeInputOutput, device is expanded in universal input/output, bus), electronics fork shift switch or other control assembly the control level signal that generates of control command configuration.Described detection module 40 is connected with corresponding control assembly connection control signal output port, for detecting the low and high level signal that it exports.
Described USB switch control module 50, be connected with described detection module 40, usb interface module 30 and USB port 20, for receiving the level signal that described detection module 40 detects, and to be connected with described usb interface module 30 according to the high level signal diverter switch received and to connect, and to be connected with described short circuit module 60 according to the low level signal diverter switch received and to connect.
When described USB switch control module 50 diverter switch is connected with described usb interface module 30, FPDP D+, D-are connected with D+, D-port of described usb interface module 30 respectively and connect, and described usb interface module 30 provides data-transmission mode by described USB port 20 pairs of external equipments.
In the present embodiment, described short circuit module 60 is by resistance by its FPDP D+ and D-short circuit, and the resistance of described resistance is less than 200 ohm, but does not generally adopt 0 ohm of compatibility improving system.When described USB switch control module 50 diverter switch is connected with described short circuit module 60, FPDP D+, D-are connected with D+, D-port of described short circuit module 60 respectively and connect, and described short circuit module 60 by resistance by its FPDP D+ and D-short circuit and short circuit resistance is less than 200 ohm, described like this USB port 20 can detect FPDP D+, D-there is no usb signal and two-port impedance is less than 200 ohm, then USB port equipment think insert being charger and exporting 5V/2A and realize fast charge mode.
In embodiments of the present invention, first described detection module 40 detects high level signal and the low level signal of input, described USB switch control module 50 receives the level signal that described detection module 40 detects, and to be connected with described usb interface module 30 according to the high level signal diverter switch received and to connect, and to be connected with described short circuit module 60 according to the low level signal diverter switch received and to connect.When described USB switch control module 50 diverter switch to be connected with described short circuit module 60 connect time, described USB port 20 can detect that D+, D-port there is no usb signal and two-port impedance is less than 200 ohm, then equipment think insert being charger and exporting 5V/2A and realize fast charge mode.
Fig. 2 is the schematic diagram of USB control device USB switch control module 50 in first embodiment of the invention, and in the present embodiment, described USB switch control module 50 is the electronic switch of model FSUSB30MUX, it comprise S pin,
pin, VCC pin, HSD1+ pin, HSD1-pin, HSD2+ pin, HSD2-pin, D+ pin, D-pin and GND pin, wherein
pin, GND pin are with reference to ground connection, and VCC pin is connected with power supply.
Fig. 3 is that the pin of USB switch control module 50 electronic switch of USB control device in first embodiment of the invention illustrates schematic diagram,
pin is output enable end, S pin inputs for selecting, and D+, D-, HSDn+, HSDn-are that FPDP, NC be not for connect.
Fig. 4 be the USB switch control module 50 of USB control device in first embodiment of the invention S pin and
the true value schematic diagram of pin, wherein: when
when pin is H high level, D+ with D-port is not connected; When S pin and
when pin is all L low level, D+ and D-port respectively with HSD1+ and HSD1-switch connection; Be H high level when S pin and
when pin is L low level, D+ and D-port respectively with HSD2+ and HSD2-switch connection.
Fig. 5 is respectively the control schematic diagram of the USB switch control module 50 of USB control device in first embodiment of the invention.In the present embodiment,
pin ground connection is low level, therefore the level of control S pin height and low just can the switch connection pin of control D+ and D-port respectively.
See the detailed circuit schematic of USB control device in Fig. 6 first embodiment of the invention.The electronic switch first pin SEL of described USB switch control module 50 is connected with described detection module 40, D+, D-data pins is connected with FPDP D+, the D-of described usb interface module 30 respectively, HSD1+, HSD1-pin is connected with described short circuit module 60, HSD2+, HSD2-pin is connected with described USB port 20
with GND pin ground connection, VCC pin connects 3.3V power supply by resistance R2.
Concrete,
ground connection is low level, and when described detection module 40 detects high level signal, SEL pin receives high level signal, according to the S pin of the described USB switch control module 50 of Fig. 4 and
the true value schematic diagram of pin, be H high level when S pin and
when pin is L low level, D+ and D-port respectively with HSD2+ and HSD2-switch connection, and HSD2+ with HSD2-is connected with described USB port 20, described like this USB switch control module 50 control D+ and D-port are connected with described USB port 20 to be connected, and now described USB port 20 is data-transmission mode.
When described detection module 40 detects low level signal, SEL pin receives low level signal, according to the S pin of the described USB switch control module 50 of Fig. 4 and
the true value schematic diagram of pin, be L low level when S pin and
when pin is L low level, D+ and D-port respectively with HSD1+ and HSD1-switch connection, and HSD1+ with HSD1-is connected with described short circuit module 60, described like this USB switch control module 50 control D+ and D-port are connected with described short circuit module 60 to be connected, the output that USB port equipment is thought to insert standard charger interface and provided 5V/2A, now described USB port 20 is in fast charge mode.
Therefore, in embodiments of the present invention, as long as the height of the level signal of control inputs and low, just can realize the data-transmission mode of described USB port 20 and the quick switching of fast charge mode by the electronic switch of described USB switch control module 50, and improve the charging rate of USB port equipment.
It should be noted that, what the switch control module 50 of USB described in the embodiment of the present invention adopted is the electronic switch of model FSUSB30MUX, but the present invention is not limited to the electronic switch of this model, other can also be adopted in other embodiments of the invention to have the electronic switch of similar control switching function, described electronic switch pin and control definition equally can see Fig. 3, 4 and 5 do similar definition and explanation, described electronic switch first pin is connected with described detection module 40, D+, D-data pins respectively with the D+ of described usb interface module, D-port connects, HSD1+, HSD1-pin is connected with described short circuit module, HSD2+, HSD2-pin is connected with described USB port, when described first pin SEL is high level, D+, D-pin respectively with HSD1+, HSD1-pin switch is connected, when described first pin SEL is low level, D+, D-pin respectively with HSD2+, HSD2-pin switch is connected.
Fig. 7 is the structural representation of USB control device in second embodiment of the invention.On the basis of first embodiment of the invention, in order to realize height to described incoming level signal and low control, described USB control device also comprises level signal output module 70, described level signal output module 70 is connected with described detection module 40, for exporting high level signal and low level signal.
In embodiments of the present invention, described level signal output module is that bus expands device GIPO, and described bus is expanded device GIPO and exported high level signal and low level signal according to the control command configuration of CPU, software, application APP or other control assemblys.Namely, user is by the sending controling instruction of CPU, software, application APP or other control assemblys, described control command comprises the data-transmission mode and fast charge mode that switch described USB port 20, and described bus is expanded device GIPO and exported high level signal and low level signal according to control command configuration.Concrete, when control command is for being switched to data-transmission mode, bus is expanded device GIPO configuration and is exported high level signal; When control command is for being switched to fast charge mode, bus is expanded device GIPO and is configured output low level signal.
Fig. 8 is the structural representation of USB control device in third embodiment of the invention.On the basis of first embodiment of the invention, similarly, in order to realize height to described incoming level signal and low control, described USB control device also comprises level signal output module 70, described level signal output module 70 is connected with described detection module 40, for exporting high level signal and low level signal.
The circuit diagram of the level signal output module 70 fork shift switch 90 of USB control device in Fig. 9 third embodiment of the invention.In embodiments of the present invention, described level signal output module 70 is fork shift switch 90, described fork shift switch 90 1 terminal contacts 3 is by resistance R4 ground connection, other end contact 2 is connected with 3.3V input power by current-limiting resistance R5, can be connected with contact 3 and generate low level signal by fork shift sheet 1 fork shift, can be connected with contact 2 and generate high level signal by fork shift sheet 1 fork shift.
The detailed circuit schematic of USB control device in Figure 10 third embodiment of the invention.The fork shift sheet end of described fork shift switch 70 is connected with described detection module 40, described detection module 40 is connected with the SEL pin of described USB switch control module 50, described USB switch control module 50D+, D-pin is connected with D+, D-port of described usb interface module 30 respectively, HSD1+, HSD1-pin is connected with described short circuit module 60, HSD2+, HSD2-pin is connected with described USB port 20
with GND pin ground connection, VCC pin connects 3.3V power supply by resistance R2.
Concrete,
ground connection is low level, and when described detection module 40 detects the high level signal that described fork shift switch 90 generates, SEL pin receives high level signal, according to the S pin of the described USB switch control module 50 of Fig. 4 and
the true value schematic diagram of pin, be H high level when S pin and
when pin is L low level, D+ and D-port respectively with HSD2+ and HSD2-switch connection, and HSD2+ with HSD2-is connected with described USB port 20, described like this USB switch control module 50 control D+ and D-port are connected with described USB port 20 to be connected, and now described USB port 20 is data-transmission mode.
When described detection module 40 detects the low level signal that described fork shift switch 90 generates, SEL pin receives low level signal, according to the S pin of the described USB switch control module 50 of Fig. 4 and
the true value schematic diagram of pin, be L low level when S pin and
when pin is L low level, D+ and D-port respectively with HSD1+ and HSD1-switch connection, and HSD1+ with HSD1-is connected with described short circuit module 60, described like this USB switch control module 50 control D+ and D-port are connected with described short circuit module 60 to be connected, the output that USB port equipment is thought to insert standard charger interface and provided 5V/2A, now described USB port 20 is fast charge mode.
Therefore, in embodiments of the present invention, as long as control the height of the level signal that described fork shift switch 90 generates and exports and low, just can realize the data-transmission mode of described USB port 20 and the quick switching of fast charge mode by the electronic switch of described USB switch control module 50, and improve the charging rate of USB port equipment.
Be understandable that, USB control device of the present invention can be used alone as the control assembly of USB port equipment, also can be embedded in the electronic equipment arbitrarily with USB port as the control module of USB port and use as PORT COM control assembly.
The above disclosed preferred embodiment be only in the embodiment of the present invention, certainly can not limit the interest field of the present invention, therefore according to the equivalent variations that the claims in the present invention are done, still belong to the scope that the present invention is contained with this.
Claims (10)
1. a USB control device, it is characterized in that, comprise USB port, usb interface module, detection module, USB switch control module and short circuit module, described USB port is used for being connected with external device by USB data line, described usb interface module is used for providing USB data transmission, described detection module is for detecting high level signal and the low level signal of input, described USB switch control module is connected with described detection module, for receiving the level signal that described detection module detects, and to be connected with described usb interface module according to the high level signal diverter switch received and to connect, and to be connected with described short circuit module according to the low level signal diverter switch received and to connect, described short circuit module by resistance by its FPDP short circuit.
2. USB control device as claimed in claim 1, it is characterized in that, the resistance of described resistance is less than 200 ohm.
3. USB control device as claimed in claim 1, is characterized in that, also comprise the level signal output module be connected with described detection module, for exporting high level signal and low level signal.
4. USB control device as claimed in claim 3, is characterized in that, described level signal output module is that bus expands device, and described bus is expanded device and exported high level signal and low level signal according to control command configuration.
5. USB control device as claimed in claim 4, is characterized in that, described bus expands device can export high level signal and low level signal according to the control command configuration of CPU, software or application.
6. USB control device as claimed in claim 3, it is characterized in that, described level signal output module is fork shift switch, and described fork shift switch controls exports high level signal and low level signal.
7. the USB control device as described in any one of claim 1 to 6, it is characterized in that, described USB switch control module is electronic switch, first pin of described electronic switch is connected with described detection module, D+, D-data pins respectively with the FPDP D+ of described usb interface module, D-connects, HSD1+, HSD1-pin is connected with described short circuit module, HSD2+, HSD2-pin is connected with described USB port, when described first pin SEL is high level, D+, D-pin respectively with HSD1+, HSD1-pin switch is connected, when described first pin SEL is low level, D+, D-pin respectively with HSD2+, HSD2-pin switch is connected.
8. USB control device as claimed in claim 7, is characterized in that, described electronic switch
pin, GND pin are with reference to ground connection, and VCC pin is connected with power supply.
9. the USB control device as described in any one of claim 1 to 6, is characterized in that, described USB switch control module is the electronic switch of model FSUSB30MUX, and the first pin SEL is connected with described detection module,
pin, GND pin are with reference to ground connection, VCC pin is connected with power supply, D+, D-data pins is connected with D+, D-port of described usb interface module respectively, HSD1+, HSD1-pin is connected with described short circuit module, HSD2+, HSD2-pin is connected with described USB port, and when described first pin SEL is high level, D+, D-pin is connected with HSD1+, HSD1-pin switch respectively, when described first pin SEL is low level, D+, D-pin is connected with HSD2+, HSD2-pin switch respectively.
10. an equipment, has USB port, it is characterized in that, it comprises the USB control device as described in any one of claim 1 to 6.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510666094.0A CN105162213A (en) | 2015-10-15 | 2015-10-15 | USB controller, and device |
| PCT/CN2016/097739 WO2017063459A1 (en) | 2015-10-15 | 2016-08-31 | Usb control apparatus and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510666094.0A CN105162213A (en) | 2015-10-15 | 2015-10-15 | USB controller, and device |
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| Publication Number | Publication Date |
|---|---|
| CN105162213A true CN105162213A (en) | 2015-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510666094.0A Pending CN105162213A (en) | 2015-10-15 | 2015-10-15 | USB controller, and device |
Country Status (2)
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|---|---|
| CN (1) | CN105162213A (en) |
| WO (1) | WO2017063459A1 (en) |
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| CN105701049B (en) * | 2016-03-23 | 2019-03-01 | Oppo广东移动通信有限公司 | System, method, apparatus and the mobile terminal of charge flag position is written |
| CN106058983A (en) * | 2016-06-30 | 2016-10-26 | 维沃移动通信有限公司 | Charging control circuit, electronic equipment and charging control method |
| CN106058983B (en) * | 2016-06-30 | 2019-01-29 | 维沃移动通信有限公司 | A kind of charging control circuit, electronic equipment and charge control method |
| CN107820589A (en) * | 2016-09-30 | 2018-03-20 | 深圳市柔宇科技有限公司 | Charge control method, charge control system and computing device |
| WO2019052386A1 (en) * | 2017-09-13 | 2019-03-21 | 西安中兴新软件有限责任公司 | Terminal device, charger, charging system and charging method |
| CN110515867A (en) * | 2019-09-09 | 2019-11-29 | 中山市天启智能科技有限公司 | A kind of cluster core board USB mode automatic switching method and route |
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|---|---|
| WO2017063459A1 (en) | 2017-04-20 |
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