CN108513690A - A kind of method and adapter for particular host charging - Google Patents

A kind of method and adapter for particular host charging Download PDF

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Publication number
CN108513690A
CN108513690A CN201880000188.6A CN201880000188A CN108513690A CN 108513690 A CN108513690 A CN 108513690A CN 201880000188 A CN201880000188 A CN 201880000188A CN 108513690 A CN108513690 A CN 108513690A
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CN
China
Prior art keywords
host
adapter
circuit
identified
voltage
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
Application number
CN201880000188.6A
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Chinese (zh)
Inventor
陈扬剑
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujian Landi Commercial Equipment Co Ltd
Original Assignee
Fujian Landi Commercial Equipment Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujian Landi Commercial Equipment Co Ltd filed Critical Fujian Landi Commercial Equipment Co Ltd
Priority to PCT/CN2018/079710 priority Critical patent/WO2019178758A1/en
Publication of CN108513690A publication Critical patent/CN108513690A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44Methods for charging or discharging
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48Accumulators combined with arrangements for measuring, testing or indicating condition, e.g. level or density of the electrolyte
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007Regulation of charging or discharging current or voltage
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • H02J7/022Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters characterised by the type of converter
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • H02J7/04Regulation of charging current or voltage
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00Conversion of dc power input into dc power output
    • H02M3/005Conversion of dc power input into dc power output using Cuk converters
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02Conversion of ac power input into dc power output without possibility of reversal
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/06Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/00032Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
    • H02J7/00045Authentication, i.e. circuits for checking compatibility between one component, e.g. a battery or a battery charger, and another component, e.g. a power source
    • H02M1/007
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

A kind of method and adapter for particular host charging provided by the invention, the adapter is connect with host to be identified, the adapter exports first voltage by AC DC conversion circuits and gives DC DC circuits, DC DC circuits do not work at this time, only transmission first voltage gives the host to be identified, host to be identified obtains first voltage input, the power supply of host to be identified negotiates circuit and works together, if host to be identified is particular host, then particular host exports feedback signal to control circuit by feedback circuit, control circuit controls DC DC circuit outputs second voltages and charges to particular host, expensive TYPE C protocol chips need not be added in adapter inner and host to be identified, it is of low cost.

Description

A kind of method and adapter for particular host charging
Technical field
The present invention relates to embedded system field, more particularly to a kind of method and adapter for particular host charging.
Background technology
Meet USB TYPE-C specifications adapter can with the negotiable voltage of output voltage 5V-20V, adapter with set 5V power voltage supplies and work are all pressed when being connected between standby, by adapter and equipment by USB TYPE-C protocol negotiations and then Supply voltage and operating voltage are transferred to voltage expected from both sides, can effectively prevent adapter output HIGH voltage in this way, avoids damaging The bad equipment that can only operate in 5V.But there are certain disadvantages for this scheme:Adapter and equipment are required for following USB TYPE- C agreements will add expensive TYPE-C protocol chips in adapter inner and electronic equipment host, with high costs.
Invention content
The technical problem to be solved by the present invention is to:There is provided it is a kind of offer negotiation mechanism for identification particular host charging Method and adapter.
In order to solve the above-mentioned technical problem, a kind of technical solution that the present invention uses for:
A method of it charges, includes the following steps for particular host:
The parameter is simultaneously stored in adapter by S1, a default parameter, and adapter is connect and defeated with host to be identified Go out first voltage to the host to be identified;
If S2, adapter receive the feedback signal that the host to be identified is sent, the feedback signal is carried out pre- Processing;
S3, judge whether pretreated feedback signal matches with the parameter, if so, assert the host to be identified For particular host, the adapter exports second voltage and charges to the particular host;The numerical value of the second voltage is more than the The numerical value of one voltage.
The another technical solution that the present invention uses for:
A kind of adapter for particular host charging, including AC-DC conversion circuits, DC-DC circuit, control circuit and anti- Current feed circuit, the AC-DC conversion circuits are connected by DC-DC circuit with host to be identified, and the DC-DC circuit is by controlling electricity Road is connected with feedback circuit, and the feedback circuit is connected with host to be identified.
The beneficial effects of the present invention are:The adapter is connect with host to be identified, the adapter passes through AC-DC Conversion circuit exports first voltage to DC-DC circuit, and DC-DC circuit does not work at this time, only transmits first voltage and waits knowing to described Other host, host to be identified obtain first voltage input, and the power supply of host to be identified negotiates circuit and works together, if master to be identified Machine is particular host, then particular host exports feedback signal to control circuit by feedback circuit, and control circuit controls DC-DC electricity Road exports second voltage and charges to particular host, need not be added in adapter inner and host to be identified expensive TYPE-C protocol chips, it is of low cost.
Description of the drawings
Fig. 1 is the schematic diagram according to a kind of method for particular host charging of the present invention;
Fig. 2 is the structural schematic diagram according to a kind of adapter for particular host charging of the present invention;
Fig. 3 is the embodiment circuit according to a kind of feedback circuit of adapter for particular host charging of the present invention Figure;
Label declaration:
1, AC-DC conversion circuits;2, DC-DC circuit;3, control circuit;4, feedback circuit;
5, host to be identified.
Specific implementation mode
The design of most critical of the present invention is:Adapter exports first voltage to host to be identified, and mechanism is next through consultation Identify particular host, if host to be identified is particular host, particular host exports feedback signal to adaptation by feedback circuit Device, adapter export second voltage and charge to particular host.
Please refer to Fig. 1, a kind of technical solution that the present invention uses for:
A method of it charges, includes the following steps for particular host:
The parameter is simultaneously stored in adapter by S1, a default parameter, and adapter is connect and defeated with host to be identified Go out first voltage to the host to be identified;
If S2, adapter receive the feedback signal that the host to be identified is sent, the feedback signal is carried out pre- Processing;
S3, judge whether pretreated feedback signal matches with the parameter, if so, assert the host to be identified For particular host, the adapter exports second voltage and charges to the particular host;The numerical value of the second voltage is more than the The numerical value of one voltage.
As can be seen from the above description, the beneficial effects of the present invention are:Adapter is connect with host to be identified and exports One voltage gives the host to be identified, and mechanism identifies particular host through consultation, special if host to be identified is particular host Determine host and export feedback signal to adapter, adapter exports second voltage and charges to particular host, need not be in adapter The expensive TYPE-C protocol chips of addition, of low cost in portion and host to be identified.
Further, step S3 includes extracting DC level to pretreated feedback signal, calculates the DC level With the difference of parameter, the difference is taken absolute value, if absolute value be less than preset value, assert pretreated feedback signal with The parameter matching.
Seen from the above description, if pretreated feedback signal is matched with the parameter, then it represents that host to be identified is Particular host.
Further, it is mismatched with the parameter if step S3 further includes pretreated feedback signal, described in identification Host to be identified is nonspecific host, and adapter holding exports first voltage to the nonspecific host charging.
Seen from the above description, if host to be identified is nonspecific host, adapter holding exports first voltage to institute Nonspecific host charging is stated, ensures that nonspecific host will not mismatch two damages because of voltage.
Further, the pretreatment of step S2 includes carrying out rectification and filtering to feedback signal.
Seen from the above description, noise jamming can be excluded by carrying out rectification and filtering to feedback signal.
Further, the feedback signal of the step S2 is periodic timing signal, the width of the periodic timing signal It is worth ranging from 1V-5V, the frequency range of the periodic timing signal is 1Khz-100Mhz, for example, when described periodical The amplitude of clock signal is 3V, and the frequency of the periodic timing signal is 100Khz.
Seen from the above description, output amplitude 1V-5V, the periodic timing signal that frequency range is 1Khz-100Mhz are A characteristic signal as particular host feeds back to control circuit, so that control circuit identifies specific host.
Further, the numerical value of the second voltage is 4-6 times of numerical value of first voltage.
Seen from the above description, the numerical value of the second voltage is that 4-6 times of numerical value of first voltage is realized to specific master The quick charge of machine.
Please refer to Fig. 2-Fig. 3, the another technical solution that the present invention uses for:
A kind of adapter for particular host charging, including AC-DC conversion circuits, DC-DC circuit, control circuit and anti- Current feed circuit, the AC-DC conversion circuits are connected by DC-DC circuit with host to be identified, and the DC-DC circuit is by controlling electricity Road is connected with feedback circuit, and the feedback circuit is connected with host to be identified.
Adapter is connect with host to be identified, adapter exports first voltage by AC-DC conversion circuits and gives DC-DC electricity Road, at this time DC-DC circuit do not work, only transmit first voltage to the host to be identified, host to be identified obtains first voltage Input, the power supply of host to be identified negotiate circuit and work together, if host to be identified is particular host, particular host passes through anti- Current feed circuit exports feedback signal to control circuit, and control circuit control DC-DC circuit exports second voltage and charges to particular host.
Seen from the above description, adapter is connect with host to be identified and the first electricity is exported by AC-DC conversion circuits It presses to the host to be identified, if host to be identified is particular host, particular host exports feedback signal by feedback circuit To control circuit, control circuit control DC-DC circuit exports second voltage and charges to particular host, need not be in adapter inner With expensive TYPE-C protocol chips are added in host to be identified, it is of low cost.
Further, the AC-DC conversion circuits include the bridge rectifier being sequentially connected, filter circuit and change piezoelectricity Road, the bridge rectifier are electrically connected with city, and the transforming circuit is connected with DC-DC circuit, the transforming circuit output first Voltage.
Seen from the above description, adapter exports first voltage to DC-DC circuit, DC-DC electricity by AC-DC conversion circuits Road exports first voltage to host to be identified.
Further, the DC-DC circuit includes boost chip, the enabled pin of the boost chip and control electricity Road be connected, the input pin of the boost chip is connected with AC-DC conversion circuits, the output pin of the boost chip with wait knowing Other host is connected.
Seen from the above description, control circuit control DC-DC circuit exports second voltage and charges to particular host.
Further, the feedback circuit includes that the first crystal oscillator being connected with each other, the first phase inverter and second are anti- Phase device, the first crystal oscillator and the first phase inverter are connected with host to be identified, second phase inverter and control circuit It is connected;Further, the feedback circuit is the clock output of the microcontroller and microcontroller in particular host Pin, the microcontroller work under first voltage and second voltage and generate periodic clock output, the clock output Pin is connected with control circuit.
Seen from the above description, feedback circuit is mainly for generation of periodic timing signal.
Further, the adapter is equipped with the cable being connected with host to be identified, and the cable is 4 core wires, specific to wrap Power pins, the first signal pins, second signal pin and grounding pin are included, two end interfaces of the cable are respectively and are adapted to TYPE-C interfaces device connected TYPE-A interfaces and be connected with host to be identified.
Seen from the above description, the adapter is realized and master to be identified by the first signal pins and second signal pin The negotiation of machine communicates.
Further, further include indicator light circuit, the indicator light circuit be connected in parallel with each other including two and respectively with The connected LED light of control circuit, the light color of two LED light differ.
Seen from the above description, indicator light circuit is used to indicate the working condition of adapter.
Fig. 1 is please referred to, the embodiment of the present invention one is:
A method of it charges, includes the following steps for particular host:
The parameter is simultaneously stored in adapter by S1, a default parameter, and parameter described in embodiment is voltage value, will be fitted Orchestration connect with host to be identified and exports first voltage to the host to be identified, and first voltage is 5V in the present embodiment;
If S2, adapter receive the feedback signal that the host to be identified is sent, the feedback signal is carried out pre- Processing, the pretreatment include carrying out rectification and filtering to feedback signal, and DC level is extracted to pretreated feedback signal, The difference for calculating the DC level and parameter takes absolute value the difference, if absolute value is less than preset value, assert pre- place Feedback signal after reason is matched with the parameter, if pretreated feedback signal is mismatched with the parameter, described in identification Host to be identified is nonspecific host, and adapter holding exports 5V voltages to the nonspecific host charging;
The feedback signal of the step S2 is periodic timing signal, and the amplitude range of the periodic timing signal is The frequency range of 1V-5V, the periodic timing signal are 1Khz-100Mhz, wherein the amplitude of the periodic timing signal The frequency of preferably 3V, the periodic timing signal are preferably 100Khz;
S3, judge whether pretreated feedback signal matches with the parameter, if so, assert the host to be identified For particular host, the adapter exports second voltage and charges to the particular host;The numerical value of the second voltage is more than the The numerical value of one voltage, the numerical value of the second voltage are 4-6 times of the numerical value of first voltage, and second voltage is in the present embodiment 20V。
Fig. 2-Fig. 3 is please referred to, the embodiment of the present invention two is:
A kind of adapter for particular host charging, including AC-DC conversion circuits 1, DC-DC circuit 2, control circuit 3 With feedback circuit 4, the AC-DC conversion circuits 1 are connected by DC-DC circuit 2 with host 3 to be identified, the DC-DC circuit 2 It is connected with feedback circuit 4 by control circuit 3, the feedback circuit 4 is connected with host 5 to be identified.
The AC-DC conversion circuits include the bridge rectifier, filter circuit and transforming circuit being sequentially connected, the bridge-type Rectifier is electrically connected with city, and the transforming circuit is connected with DC-DC circuit, and the transforming circuit exports 5V DC voltages.
The DC-DC circuit includes boost chip, and the enabled pin of the boost chip is connected with the control circuit, institute The input pin for stating boost chip is connected with AC-DC conversion circuits, the output pin of the boost chip and host phase to be identified Even.
Such as Fig. 3, the feedback circuit includes first crystal oscillator, the first phase inverter and the second reverse phase being connected with each other Device, the first crystal oscillator and the first phase inverter are connected with host to be identified, second phase inverter and control circuit phase Even;Further, the feedback circuit is that the clock output of the microcontroller and microcontroller in particular host is drawn Foot, the microcontroller work under first voltage and second voltage and generate periodic clock output, and the clock output is drawn Foot is connected with control circuit.
Adapter is connect with host to be identified, adapter exports 5V voltages by AC-DC conversion circuits and gives DC-DC electricity Road, at this time DC-DC circuit do not work, only transmit 5V voltages to the host to be identified, host to be identified obtains 5V control sources, The power supply of host to be identified negotiates circuit and works together, if host to be identified is particular host, particular host is by feeding back electricity Road exports feedback signal to control circuit, and control circuit control DC-DC circuit exports 20V voltages and charges to particular host.
The adapter is equipped with the cable being connected with host to be identified, and the cable is 4 core wires, specifically includes power supply and draws Foot, the first signal pins, second signal pin and grounding pin.
Two end interfaces of the cable are respectively the TYPE-A interfaces being connected with adapter and are connected with host to be identified TYPE-C interfaces.
For USB2.0 communications protocol:One end of USB needs first to provide pull-up resistor, and the other end of USB recognizes After pull-up resistor, the other end of USB just actively starts to enumerate, in first signal pins and second signal pin of one end of USB Signal is just had, because one end of USB is adapter, the first signal pins and second signal pin do not have pull-up resistor, will not Enumerating for other terminal devices is responded, even if so adapter is inserted into other usb terminal equipment, other usb terminal equipment The first signal pins of adapter and second signal pin will not be made to generate and continue AC signal, the lasting friendship that the present embodiment refers to Stream signal is periodic timing signal.
For USB fast charge QC agreements:Adapter first provides 0.325V voltages, and host side recognizes 0.325V voltages, First signal pins and second signal pin are then turned off to the first signal pins and second signal pin elder generation short circuit 1.25s, it is main Generator terminal just continues to provide 3.3V or 0.6V voltages to adapter.And the adapter of the present invention does not follow QC agreements, thus it is other USB fast charges terminal, which will not continue to generate in the first signal pins and second signal pin, continues AC signal, while QC is assisted View is to the first signal pins and second signal pin elder generation short circuit 1.25s is then turned off the first signal pins and second signal is drawn Foot identifies fixed level 3.3V or 0.6V respectively, and the particular host output that the present invention defines is to continue AC signal, embodiment In be periodic timing signal, therefore will not be arrived by the QC protocol identifications of other adapters.
For USB PD fast charges and MTK PEK fast charge agreements:The fast charge adapter of PD and PE standards does not all use the first letter Number pin and second signal pin, therefore the first signal pins and second signal pin there will not be signal generation, it will not be by this Invent the AC signal triggering of the particular host of definition.
A kind of above-mentioned adapter for particular host charging, further includes the instruction for the working condition for being used to indicate adapter Circuit for lamp, the indicator light circuit are connected with control circuit, and the indicator light circuit includes two LED light being connected in parallel, and two A LED light is connected with control circuit respectively, and one, the color of two LED light is red, another is green, if waiting for Identification host is that particular host then gives a green light, and is otherwise sent out a warning.
By taking cash register as an example, cash register intersects power conditions such as the following table 1 of changing-over with miscellaneous equipment respectively, with low cost Mode realizes the voltage matches of special adapter and particular host, and avoids special adapter and nonspecific host and non-spy Determine mixed insertion between adapter and particular host, the risk that nonspecific adapter is damaged with nonspecific host.
Table 1
In conclusion a kind of method and adapter for particular host charging provided by the invention, by the adapter It is connect with host to be identified, the adapter exports first voltage to DC-DC circuit by AC-DC conversion circuits, at this time DC-DC Circuit does not work, and only transmits first voltage to the host to be identified, host to be identified obtains first voltage input, master to be identified The power supply of machine negotiates circuit and works together, if host to be identified is particular host, particular host is exported anti-by feedback circuit Feedback signal exports second voltage and charges to particular host, need not be adapted to control circuit, control circuit control DC-DC circuit Expensive TYPE-C protocol chips are added inside device and in host to be identified, it is of low cost.

Claims (16)

1. a kind of method for particular host charging, which is characterized in that include the following steps:
The parameter is simultaneously stored in adapter by S1, a default parameter, and adapter is connect with host to be identified and exports the One voltage gives the host to be identified;
If S2, adapter receive the feedback signal that the host to be identified is sent, the feedback signal is pre-processed;
S3, judge whether pretreated feedback signal matches with the parameter, if so, assert that the host to be identified is spy Determine host, the adapter exports second voltage and charges to the particular host;The numerical value of the second voltage is more than the first electricity The numerical value of pressure.
2. a kind of method for particular host charging according to claim 1, which is characterized in that step S3 includes to pre- Feedback signal that treated extracts DC level, calculates the difference of the DC level and parameter, the difference is taken absolute value, If absolute value is less than preset value, assert that pretreated feedback signal is matched with the parameter.
3. a kind of method for particular host charging according to claim 1, which is characterized in that if step S3 further includes Pretreated feedback signal is mismatched with the parameter, then assert that the host to be identified is nonspecific host, adapter is protected It holds and exports first voltage to the nonspecific host charging.
4. a kind of method for particular host charging according to claim 1, which is characterized in that the pretreatment of step S2 Including carrying out rectification and filtering to feedback signal.
5. a kind of method for particular host charging according to claim 1, which is characterized in that the step S2's is anti- Feedback signal is periodic timing signal.
6. a kind of method for particular host charging according to claim 5, which is characterized in that the periodic clock The amplitude range of signal is 1V-5V, and the frequency range of the periodic timing signal is 1Khz-100Mhz.
7. a kind of method for particular host charging according to claim 6, which is characterized in that the periodic clock The amplitude of signal is 3V, and the frequency of the periodic timing signal is 100Khz.
8. a kind of method for particular host charging according to claim 1, which is characterized in that the second voltage Numerical value is 4-6 times of the numerical value of first voltage.
9. a kind of adapter for particular host charging, which is characterized in that including AC-DC conversion circuits, DC-DC circuit, control Circuit and feedback circuit processed, the AC-DC conversion circuits are connected by DC-DC circuit with host to be identified, the DC-DC circuit It is connected with feedback circuit by control circuit, the feedback circuit is connected with host to be identified.
10. a kind of adapter for particular host charging according to claim 9, which is characterized in that the AC-DC turns It includes the bridge rectifier, filter circuit and transforming circuit being sequentially connected to change circuit, and the bridge rectifier is electrically connected with city, institute It states transforming circuit with DC-DC circuit to be connected, the transforming circuit exports first voltage.
11. a kind of adapter for particular host charging according to claim 9, which is characterized in that the DC-DC electricity Road includes boost chip, and the enabled pin of the boost chip is connected with the control circuit, and the input of the boost chip is drawn Foot is connected with AC-DC conversion circuits, and the output pin of the boost chip is connected with host to be identified.
12. a kind of adapter for particular host charging according to claim 9, which is characterized in that the feedback electricity Road includes first crystal oscillator, the first phase inverter and the second phase inverter being connected with each other, the first crystal oscillator and the One phase inverter is connected with host to be identified, and second phase inverter is connected with control circuit;Further, the feedback circuit is One clock out pin of a microcontroller and microcontroller in particular host, the microcontroller in first voltage and It works under second voltage and generates periodic clock output, the clock out pin is connected with control circuit.
13. a kind of adapter for particular host charging according to claim 9, which is characterized in that the adapter Equipped with the cable being connected with host to be identified, the cable is 4 core wires, specifically includes power pins, the first signal pins, second Signal pins and grounding pin.
14. a kind of adapter for particular host charging according to claim 13, which is characterized in that the cable Two end interfaces are respectively the TYPE-A interfaces being connected with adapter and the TYPE-C interfaces being connected with host to be identified.
15. a kind of adapter for particular host charging according to claim 9, which is characterized in that further include instruction Circuit for lamp, the indicator light circuit are connected with control circuit.
16. a kind of adapter for particular host charging according to claim 15, which is characterized in that the indicator light Circuit includes two LED light for being connected in parallel with each other and being connected respectively with control circuit, and the light color of two LED light is not It is identical.
CN201880000188.6A 2018-03-21 2018-03-21 A kind of method and adapter for particular host charging Pending CN108513690A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2018/079710 WO2019178758A1 (en) 2018-03-21 2018-03-21 Method and adapter for charging specific host

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Publication Number Publication Date
CN108513690A true CN108513690A (en) 2018-09-07

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CN (1) CN108513690A (en)
WO (1) WO2019178758A1 (en)

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