CN103532187B - Charger, charging wire, charging system and charging method - Google Patents

Charger, charging wire, charging system and charging method Download PDF

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Publication number
CN103532187B
CN103532187B CN201310454831.1A CN201310454831A CN103532187B CN 103532187 B CN103532187 B CN 103532187B CN 201310454831 A CN201310454831 A CN 201310454831A CN 103532187 B CN103532187 B CN 103532187B
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voltage
charging
charging inlet
circuit
low
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CN103532187A (en
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孙伟
雷振飞
徐兵
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Xiaomi Inc
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Xiaomi Inc
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    • 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
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
    • 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

The invention discloses a kind of charger, charging wire, charging system and charging method, belong to power supply technique field.Described charger comprises: charging circuit, the first charging inlet be connected with charging circuit and the second charging inlet; Charging circuit, for being converted into low-voltage DC by High Level AC Voltage; First charging inlet, for when being in normal operating condition, exports the first charging current according to low-voltage DC; When being in the using state in parallel with the second charging inlet, export the charging current with the second charging inlet with identical voltage according to low-voltage DC; Second charging inlet, for when being in normal operating condition, exports the second charging current according to low-voltage DC; When being in the using state in parallel with the first charging inlet, export the charging current with the first charging inlet with identical voltage according to low-voltage DC.The invention solves use meet national standard charger cannot the problem of quick charge, reach the effect improving charge efficiency.

Description

Charger, charging wire, charging system and charging method
Technical field
The disclosure relates to power supply technique field, particularly a kind of charger, charging wire, charging system and charging method.
Background technology
Charger is a kind of equipment High Level AC Voltage being converted into low-voltage DC, main employing voltage-dropping type AC-DC circuit realiration.Charger can charge for the rechargeable battery in electronic equipment.
Some current chargers need to coordinate charging wire to use.Charger provides attaching plug and USB; One end of charging wire is USB plug, and for the USB in connecting charger, the other end of charging wire is MicroUSB plug, for connecting the charge port of portable electric appts.Wherein, the attaching plug of charger is used for greatly the alternating-current power supply connecting 220V, and the USB of charger is used for greatly the direct current that output voltage is 5V.
Realizing in process of the present disclosure, inventor finds background technology, and there are the following problems: under some scenes, need to carry out quick charge to electronic equipment, in quick charge process, usually output current is needed to be the charger of about 3A, but the output current meeting the charger of national standard is 1.8A to the maximum, the charge requirement of quick charge cannot be met, also namely cannot realize quick charge.
Summary of the invention
Use the charger meeting national standard to the problem of electronic equipment quick charge, a kind of charger, charging wire, charging system and charging method cannot be present disclose provides to solve.Described technical scheme is as follows:
First aspect, present disclose provides a kind of charger, and described charger comprises:
Charging circuit, the first charging inlet be connected with described charging circuit and the second charging inlet;
Described charging circuit, for being converted into low-voltage DC by High Level AC Voltage;
Described first charging inlet, for when being in normal operating condition, exports the first charging current according to described low-voltage DC; When being in the using state in parallel with described second charging inlet, export the charging current with described second charging inlet with identical voltage according to described low-voltage DC;
Described second charging inlet, for when being in normal operating condition, exports the second charging current according to described low-voltage DC; When being in the using state in parallel with described first charging inlet, export the charging current with described first charging inlet with identical voltage according to described low-voltage DC;
Wherein, described charging circuit comprises feedback circuit, control circuit, the first switching power circuit and second switch power circuit; Described control circuit is connected with the control end of described first switching power circuit with described second switch power circuit respectively, described feedback circuit is connected with the output of described first switching power circuit with described second switch power circuit respectively, and described feedback circuit is connected with described control circuit;
Described feedback circuit, outputs to described control circuit for the feedback voltage of being sampled by the output from described first charging inlet and described second charging inlet;
Described control circuit, for generating the first pulse width modulation (PWM) signal and the second pwm signal according to described feedback voltage, described first pwm signal is outputted to described first switching power circuit, described second pwm signal is outputted to described second switch power circuit, and the phase place of described first pwm signal and described second pwm signal is contrary;
Described first switching power circuit, for described High Level AC Voltage being converted into described low-voltage DC according to described first pwm signal, and exports to described first charging inlet;
Described second switch power circuit, for described High Level AC Voltage being converted into described low-voltage DC according to described second pwm signal, and exports to described second charging inlet.
Further, the first reduction voltage circuit that described first switching power circuit comprises the first rectification circuit and is connected with described first rectification circuit, the second reduction voltage circuit that described second switch power circuit comprises the second rectification circuit and is connected with described second rectification circuit;
Described first rectification circuit is used for described High Level AC Voltage to be converted into high voltage direct current, described first reduction voltage circuit is used for, according to described first pwm signal, the described high voltage direct current that described first rectifier circuit rectifies obtains is converted into described low-voltage DC, and exports to described first charging inlet;
Described second rectification circuit is used for described High Level AC Voltage to be converted into high voltage direct current, described second reduction voltage circuit is used for, according to described second pwm signal, the described high voltage direct current that described second rectifier circuit rectifies obtains is converted into described low-voltage DC, and exports to described second charging inlet.
Further, described first charging inlet and described second charging inlet are general-purpose serial bus USB interface.
Second aspect, present disclose provides a kind of charging system, and described charging system comprises: charger as described in relation to the first aspect.
The third aspect, present disclose provides a kind of charging method, and in charger as described in relation to the first aspect, described method comprises:
High Level AC Voltage is converted into low-voltage DC;
When described first charging inlet is in normal operating condition, export the first charging current by described first charging inlet according to described low-voltage DC;
When described second charging inlet is in normal operating condition, export the second charging current by described second charging inlet according to described low-voltage DC;
When described first charging inlet is in using state in parallel with described second charging inlet, exported the charging current with described second charging inlet with identical voltage by described first charging inlet according to described low-voltage DC, and exported the charging current with described first charging inlet with identical voltage by described second charging inlet according to described low-voltage DC;
Wherein, described High Level AC Voltage is converted into low-voltage DC, comprises:
Obtain the feedback voltage of the output of described first charging inlet and described second charging inlet;
Generate the first pulse width modulation (PWM) signal and the second pwm signal according to described feedback voltage, the phase place of described first pwm signal and described second pwm signal is contrary;
Described High Level AC Voltage is converted into according to described first pwm signal the low-voltage DC exporting to described first charging inlet, and described High Level AC Voltage is converted into according to described second pwm signal the low-voltage DC exporting to described second charging inlet.
Some beneficial effects of the technical scheme that the disclosure provides can comprise:
By High Level AC Voltage is converted into low-voltage DC, when described first charging inlet is in using state in parallel with described second charging inlet, exported the charging current with described second charging inlet with identical voltage according to described low-voltage DC by described first charging inlet, and exported the charging current with described first charging inlet with identical voltage according to described low-voltage DC by described second charging inlet, the first charging inlet is made to have identical voltage with the second charging inlet, identical voltage makes the first charging inlet and the second charging inlet can export charging current simultaneously, the total current after merging can be made to reach about 3A by carrying out charging current merging exporting, meet the demand of quick charge, thus solve use meet the charger of national standard cannot to the problem of electronic equipment quick charge, reach the effect improving charge efficiency.
Should be understood that, it is only exemplary that above general description and details hereinafter describe, and can not limit the disclosure.
Accompanying drawing explanation
In order to be illustrated more clearly in embodiment of the present disclosure, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present disclosure, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the example arrangement frame diagram of the charging system that disclosure embodiment provides;
Fig. 2 is the disclosure example arrangement frame diagram of the first charging circuit that provides of an embodiment again;
Fig. 3 is the example arrangement frame diagram of the second charging circuit that disclosure embodiment provides;
Fig. 4 is the example arrangement frame diagram of the third charging circuit that disclosure embodiment provides;
Fig. 5 is the exemplary method flowchart of the charging method that disclosure embodiment provides;
Fig. 6 is the exemplary method flowchart of the charging method that another embodiment of the disclosure provides.
By above-mentioned accompanying drawing, illustrate the embodiment that the disclosure is clear and definite more detailed description will be had hereinafter.These accompanying drawings and text description be not in order to limited by any mode the disclosure design scope, but by reference to specific embodiment for those skilled in the art illustrate concept of the present disclosure.
Embodiment
For making object of the present disclosure, technical scheme and advantage clearly, below in conjunction with accompanying drawing, disclosure execution mode is described in further detail.
Please refer to Fig. 1, it illustrates the example arrangement frame diagram of the charging system that disclosure embodiment provides, this charging system can comprise charger 100 and charging wire 200, and charger 100 can comprise: charging circuit 110, the first charging inlet 120 and the second charging inlet 130 be connected with charging circuit;
Charging circuit 110, for being converted into low-voltage DC by High Level AC Voltage.
Charging circuit 110 connects High Level AC Voltage, such as, and the alternating current of High Level AC Voltage to be voltage be 220V, and High Level AC Voltage is converted into low-voltage DC, such as, the direct current of low-voltage DC to be voltage be 5V.
First charging inlet 120, for when being in normal operating condition, exports the first charging current according to low-voltage DC; When being in the using state in parallel with the second charging inlet, export the charging current with the second charging inlet with identical voltage according to low-voltage DC.
First charging inlet 120 is in normal operating condition and refers to that the first charging inlet 120 is connected with common charging wire, is separately electronic equipment charging.When the first charging inlet 120 is in normal operating condition, the output voltage of about 5V, the output current of about 1.8A can be provided for electronic equipment.
Second charging inlet 130, for when being in normal operating condition, exports the second charging current according to low-voltage DC; When being in the using state in parallel with the first charging inlet, export the charging current with the first charging inlet with identical voltage according to low-voltage DC.
Second charging inlet 130 is in normal operating condition and refers to that the second charging inlet 130 is connected with common charging wire, is separately electronic equipment charging.When the second charging inlet 130 is in normal operating condition, the output voltage of about 5V, the output current of about 1.8A can be provided for electronic equipment.
First charging inlet 120 refers to the using state of the second charging inlet 130 parallel connection and is connected with charging wire 200 respectively with the second charging inlet 130 by the first charging inlet 120, by charging wire 200, the charging current that first charging inlet 120 and the second charging inlet 130 export being carried out merging to export, is power electronic equipment according to merging the charging current exported.When the first charging inlet 120 and the second charging inlet 130 are in using state in parallel, the output voltage of about 5V can be provided, meet or exceed the output current of 3A for electronic equipment.
By when in charger 100, the first charging inlet 120 and the second charging inlet 130 carry out parallel connection, charging wire 200 can comprise: the first charging plug 210, second charging plug 220 and the output charging plug 230 be simultaneously connected with the second charging plug 220 with the first charging plug 210.
First charging plug 210, for the first charging inlet 120 in connecting charger 100.
Second charging plug 220, for the second charging inlet 130 in connecting charger 100.
Export charging plug 230, charge for the electronic equipment be connected is exported in the charging current merging with identical voltage from the first charging plug 210 and the second charging plug 220.
When the first charging inlet 120 and the second charging inlet 130 are in using state in parallel, the first charging plug 210 is connected with the first charging inlet 120, receives the charging current from the first charging inlet 120.Second charging plug 220 is connected with the second charging inlet 130, receives the charging current from the second charging inlet 130.Because the first charging inlet 120 and the second charging inlet 130 have identical voltage, therefore, the charging current that first charging inlet 120 and the second charging inlet 130 export can merge rear output, and the charging current merging with identical voltage from the first charging plug 210 and the second charging plug 220 can be exported to the electronic equipment be connected and be charged by charging wire 200.
In sum, the charger that the disclosure provides, by High Level AC Voltage is converted into low-voltage DC, when the first charging inlet is in using state in parallel with the second charging inlet, exported the charging current with the second charging inlet with identical voltage according to low-voltage DC by the first charging inlet, and exported the charging current with the first charging inlet with identical voltage according to low-voltage DC by the second charging inlet, the first charging inlet is made to have identical voltage with the second charging inlet, identical voltage makes the first charging inlet and the second charging inlet can export charging current simultaneously, the total current after merging can be made to reach about 3A by carrying out charging current merging exporting, meet the demand of quick charge, thus solve use meet the charger of national standard cannot to the problem of electronic equipment quick charge, reach the effect improving charge efficiency.
A disclosure again embodiment provides a kind of charging system, and this charging system can comprise charger 100 and charging wire 200, and charger 100 can comprise: charging circuit 110, the first charging inlet 120 and the second charging inlet 130 be connected with charging circuit;
Charging circuit 110, for being converted into low-voltage DC by High Level AC Voltage.
Charging circuit 110 connects High Level AC Voltage, and such as, the alternating current of High Level AC Voltage to be voltage be 220V, is converted into low-voltage DC by High Level AC Voltage, such as, and the direct current of low-voltage DC to be voltage be 5V.
When actual realization, please refer to Fig. 2, it illustrates the example arrangement frame diagram of the first charging system that embodiment of the present disclosure provides, in Fig. 2, charging circuit 110 comprises feedback circuit 111, control circuit 112, first switching power circuit 113 and second switch power circuit 114; Control circuit 112 is connected with the control end of second switch power circuit 114 with the first switching power circuit 113 respectively, feedback circuit 111 is connected with the output of second switch power circuit 114 with the first switching power circuit 113 respectively, and feedback circuit 111 is connected with control circuit 112.
Feedback circuit 111, outputs to control circuit 112 for the feedback voltage of being sampled by the output from both the first charging inlet 120 and the second charging inlet 130.
When the first charging inlet 120 is in normal operating condition, feedback circuit 111 can be sampled to the output of the first charging inlet 120, by sampling, the feedback voltage obtained outputs to control circuit 112, is regulated the output voltage of the first charging inlet 120 by control circuit 112 according to feedback voltage.In like manner, when the second charging inlet 130 is in normal operating condition, feedback circuit 111 can be sampled to the output of the second charging inlet 130, by sampling, the feedback voltage obtained outputs to control circuit 112, is regulated the output voltage of the second charging inlet 130 by control circuit 112 according to feedback voltage.
When the first charging inlet 120 and the second charging inlet 130 are in using state in parallel, feedback circuit 111 can be sampled to the output of both the first charging inlet 120 and the second charging inlet 130, because the first charging inlet 120 and the second charging inlet 130 have identical output voltage, therefore, identical to the sample feedback voltage that obtains of the first charging inlet 120 and the second charging inlet 130, control circuit 112 is outputted to by after identical feedback voltage parallel connection, regulated the identical output voltage of the first charging inlet 120 and the second charging inlet 130 according to feedback voltage by control circuit 112.
Control circuit 112, for generating the first pwm signal and the second pwm signal according to feedback voltage, first pwm signal is outputted to the first switching power circuit 113, the phase place the second pwm signal being outputted to second switch power circuit 114, first pwm signal and the second pwm signal is contrary.
Wherein, the phase place of the first pwm signal and the second pwm signal refers to that the duration of positive pulse in the first pwm signal is not overlapping with the duration of positive pulse in the second pwm signal on the contrary.
First switching power circuit 113, for High Level AC Voltage being converted into low-voltage DC according to the first pwm signal, and exports to the first charging inlet 120.
Second switch power circuit 114, for High Level AC Voltage being converted into low-voltage DC according to the second pwm signal, and exports to the second charging inlet 130.
Please refer to Fig. 3, it illustrates the example arrangement frame diagram of the second charging system that embodiment of the present disclosure provides, in Fig. 3, the first reduction voltage circuit 113B that first switching power circuit 113 comprises the first rectification circuit 113A and is connected with the first rectification circuit 113A, the second reduction voltage circuit 114B that second switch power circuit 114 comprises the second rectification circuit 114A and is connected with the second rectification circuit 114A.
First rectification circuit 113A is used for High Level AC Voltage to be converted into high voltage direct current, first reduction voltage circuit 113B is used for, according to the first pwm signal, the high voltage direct current that the first rectification circuit 113A rectification obtains is converted into low-voltage DC, and exports to the first charging inlet 120.
When the first reduction voltage circuit 113B makes the first switching power circuit 113 be in channel status under the control of the first pwm signal, the high voltage direct current of input is converted into High Level AC Voltage by the first rectification circuit 113A that the first switching power circuit 113 comprises, and the High Level AC Voltage after transforming is outputted to the first reduction voltage circuit 113B, the high voltage direct current that first rectification circuit 113A rectification obtains is converted into low-voltage DC by the first reduction voltage circuit 113B, and low-voltage DC is exported to the first charging inlet 120, simultaneously, first reduction voltage circuit 113B stores electric energy in process high voltage direct current being converted into low-voltage DC.When the first reduction voltage circuit 113B makes the first switching power circuit 113 be in off state under the control of the first pwm signal, the first reduction voltage circuit 113B that first switching power circuit 113 comprises discharges to the electric energy stored in conversion process, and the low-voltage DC that electric discharge is formed is outputted to the first charging inlet 120.
Second rectification circuit 114A is used for High Level AC Voltage to be converted into high voltage direct current, second reduction voltage circuit 114B is used for, according to the second pwm signal, the high voltage direct current that the second rectification circuit 114A rectification obtains is converted into low-voltage DC, and exports to the second charging inlet 130.
The operation principle of second switch power circuit 114 is identical with the operation principle of the first switching power circuit 113, does not repeat herein.
First charging inlet 120, for when being in normal operating condition, exports the first charging current according to low-voltage DC; When being in the using state in parallel with the second charging inlet, export the charging current with the second charging inlet with identical voltage according to low-voltage DC.
First charging inlet 120 is in normal operating condition and refers to that the first charging inlet 120 is connected with common charging wire, is separately electronic equipment charging.When the first charging inlet 120 is in normal operating condition, the output voltage of about 5V, the output current of about 1.8A can be provided for electronic equipment.
Second charging inlet 130, for when being in normal operating condition, exports the second charging current according to low-voltage DC; When being in the using state in parallel with the first charging inlet, export the charging current with the first charging inlet with identical voltage according to low-voltage DC.
Second charging inlet 130 is in normal operating condition and refers to that the second charging inlet 130 is connected with common charging wire, is separately electronic equipment charging.When the second charging inlet 130 is in normal operating condition, the output voltage of about 5V, the output current of about 1.8A can be provided for electronic equipment.
First charging inlet 120 refers to the using state of the second charging inlet 130 parallel connection and is connected with charging wire 200 respectively with the second charging inlet 130 by the first charging inlet 120, by charging wire 200, the charging current that first charging inlet 120 and the second charging inlet 130 export being carried out merging to export, is the using state of power electronic equipment according to merging the charging current exported.When the first charging inlet 120 and the second charging inlet 130 are in using state in parallel, the output voltage of about 5V can be provided, meet or exceed the output current of 3A for electronic equipment.
Wherein, High Level AC Voltage is converted into low-voltage DC according to the first pwm signal by the first switching power circuit 113, High Level AC Voltage is converted into low-voltage DC according to the second pwm signal by second switch power circuit 114, because the phase place of the first pwm signal and the second pwm signal is contrary, therefore, when the first switching power circuit 113 is when being converted into low-voltage DC by the High Level AC Voltage of input, second switch power circuit 114 forms low-voltage DC at the electrical energy discharge that will store; When the first switching power circuit 113 forms low-voltage DC at the electrical energy discharge that will store, the High Level AC Voltage of input is being converted into low-voltage DC by second switch power circuit 114, and transform the low-voltage DC formed according to High Level AC Voltage identical with the low-voltage DC that electric discharge is formed, therefore, to output to the voltage of the first charging inlet 120 identical with the voltage that second switch power circuit 114 outputs to the second charging inlet 130 for the first switching power circuit 113.And voltage identical time charging current can export simultaneously, therefore, the first charging inlet 120 can export charging current, the second charging inlet 130 also can export charging current simultaneously, makes the total current after merging meet or exceed 3A.Thus avoid the first pwm signal identical with the phase place of the second pwm signal time, first charging inlet 120 is different with the voltage that the second charging inlet 130 exports, cause can only output HIGH voltage formed charging current, charging current remains about 1.8A, cannot realize the problem of quick charge.
By when in charger 100, the first charging inlet 120 and the second charging inlet 130 carry out parallel connection, charging wire 200 can comprise: the first charging plug 210, second charging plug 220 and the output charging plug 230 be simultaneously connected with the second charging plug 220 with the first charging plug 210.
First charging plug 210, for the first charging inlet 120 in connecting charger 100.
Second charging plug 220, for the second charging inlet 130 in connecting charger 100.
Export charging plug 230, charge for the electronic equipment be connected is exported in the charging current merging with identical voltage from the first charging plug 210 and the second charging plug 220.
When the first charging inlet 120 and the second charging inlet 130 are in using state in parallel, the first charging plug 210 is connected with the first charging inlet 120, receives the charging current from the first charging inlet 120.Second charging plug 220 is connected with the second charging inlet 130, receives the charging current from the second charging inlet 130.Because the first charging inlet 120 and the second charging inlet 130 have identical voltage, therefore, the charging current that first charging inlet 120 and the second charging inlet 130 export can merge rear output, and the charging current merging with identical voltage from the first charging plug 210 and the second charging plug 220 can be exported to the electronic equipment be connected and be charged by charging wire 200.
Please refer to Fig. 4, it illustrates the example arrangement frame diagram of the third charging system that embodiment of the present disclosure provides, in Fig. 4, the first charging inlet 120 and the second charging inlet 130 are USB interface.First charging plug 210 and the second charging plug 220 are USB interface, and exporting charging plug 230 is MicroUSB plug or MiniUSB plug or lighting interface.
USB interface is connected with charging circuit 110 by four terminals, and these four terminals are power supply terminal VBUS, data terminal D+, data terminal D-and earth terminal GND respectively.Wherein, the voltage on power supply terminal VBUS is charging voltage usually; Data terminal D+ and data terminal D-is usual short circuit mutually when charging, and now, two data terminals are all low level.
First charging plug 210 comprises four terminals, respectively corresponding power terminal VBUS, data terminal D+, data terminal D-and earth terminal GND.The power supply terminal VBUS of the first charging plug 210 is connected with the power supply terminal VBUS of the first charging inlet 120, the data terminal D+ of the first charging plug 210 is connected with the data terminal D+ of the first charging inlet 120, the data terminal D-of the first charging plug 210 is connected with the data terminal D-of the first charging inlet 120, and the earth terminal GND of the first charging plug 210 is connected with the earth terminal GND of the first charging inlet 120.
Second charging plug 220 comprises four terminals, respectively corresponding power terminal VBUS, data terminal D+, data terminal D-and earth terminal GND.The power supply terminal VBUS of the second charging plug 220 is connected with the power supply terminal VBUS of the second charging inlet 130, the data terminal D+ of the second charging plug 220 is connected with the data terminal D+ of the second charging inlet 130, the data terminal D-of the second charging plug 220 is connected with the data terminal D-of the second charging inlet 130, and the earth terminal GND of the second charging plug 220 is connected with the earth terminal GND of the second charging inlet 130.
Exporting charging plug 230 and comprise four terminals, is power supply terminal VBUS, data terminal D+, data terminal D-and earth terminal GND respectively.First charging plug 210 is connected with the power supply terminal VBUS exporting charging plug 230 respectively with the power supply terminal VBUS of the second charging plug 220, first charging plug 210 is connected with the data terminal D+ exporting charging plug 230 respectively with the data terminal D+ of the second charging plug 220, first charging plug 210 is connected with the data terminal D-exporting charging plug 230 respectively with the data terminal D-of the second charging plug 220, and the first charging plug 210 is connected with the earth terminal GND exporting charging plug 230 respectively with the earth terminal GND of the second charging plug 220.
Electronic equipment is corresponding with output charging plug 230, includes MicroUSB charging inlet or MiniUSB charging inlet or lighting charging inlet.This MicroUSB charging inlet or MiniUSB charging inlet or lighting charging inlet specifically include power supply terminal VBUS, data terminal D+, data terminal D-, identity terminal ID and earth terminal GND.The power supply terminal VBUS that the power supply terminal VBUS of output charging plug 230 is corresponding with electronic equipment is connected, the data terminal D+ that the data terminal D+ of output charging plug 230 is corresponding with electronic equipment is connected, the data terminal D-that the data terminal D-of output charging plug 230 is corresponding with electronic equipment is connected, and the earth terminal GND that the earth terminal GND of output charging plug 230 is corresponding with electronic equipment is connected.
In sum, the charger that the disclosure provides, by High Level AC Voltage is converted into low-voltage DC, when the first charging inlet is in using state in parallel with the second charging inlet, exported the charging current with the second charging inlet with identical voltage according to low-voltage DC by the first charging inlet, and exported the charging current with the first charging inlet with identical voltage according to low-voltage DC by the second charging inlet, the first charging inlet is made to have identical voltage with the second charging inlet, identical voltage makes the first charging inlet and the second charging inlet can export charging current simultaneously, the total current after merging can be made to reach about 3A by carrying out charging current merging exporting, meet the demand of quick charge, thus solve use meet the charger of national standard cannot to the problem of electronic equipment quick charge, reach the effect improving charge efficiency.In addition, by generating the first pwm signal and the second pwm signal according to feedback voltage, first pwm signal is outputted to the first switching power circuit, second pwm signal is outputted to second switch power circuit, the phase place of the first pwm signal and the second pwm signal is contrary, can according to contrary the first pwm signal of phase place and the second pwm signal controls the first switching power circuit and second switch power circuit exports identical voltage, thus make the first charging inlet and the second charging inlet export charging current according to identical voltage simultaneously, realize reaching about 3A to the total current after the charging current exported merges simultaneously, meet the demand of quick charge.
Please refer to Fig. 5, it illustrates the method flow diagram of the charging method that disclosure embodiment provides, this charging method can be applied in the charging system shown in Fig. 1 or Fig. 2 or Fig. 3 or Fig. 4.This charging method can comprise the steps.
In step 501, High Level AC Voltage is converted into low-voltage DC.
Charger connects High Level AC Voltage, and such as, the alternating current of High Level AC Voltage to be voltage be 220V, is converted into low-voltage DC by High Level AC Voltage, such as, and the direct current of low-voltage DC to be voltage be 5V.
In step 502, when the first charging inlet is in normal operating condition, the first charging current is exported by the first charging inlet according to low-voltage DC.
First charging inlet is in normal operating condition and refers to that the first charging inlet is connected with common charging wire, is separately electronic equipment charging.When the first charging inlet is in normal operating condition, the output voltage of about 5V, the output current of about 1.8A can be provided for electronic equipment.
In step 503, when the second charging inlet is in normal operating condition, the second charging current is exported by the second charging inlet according to low-voltage DC.
Second charging inlet is in normal operating condition and refers to that the second charging inlet is connected with common charging wire, is separately electronic equipment charging.When the second charging inlet is in normal operating condition, the output voltage of about 5V, the output current of about 1.8A can be provided for electronic equipment.
In step 504, when the first charging inlet is in using state in parallel with the second charging inlet, exported the charging current with the second charging inlet with identical voltage by the first charging inlet according to low-voltage DC, and exported the charging current with the first charging inlet with identical voltage by the second charging inlet according to low-voltage DC.
First charging inlet refers to the using state of the second charging inlet parallel connection and is connected with charging wire respectively with the second charging inlet by the first charging inlet, by charging wire, the charging current that the first charging inlet and the second charging inlet export being carried out merging to export, is power electronic equipment according to merging the charging current exported.When the first charging inlet and the second charging inlet are in using state in parallel, the output voltage of about 5V can be provided, meet or exceed the output current of 3A for electronic equipment.
Because the first charging inlet and the second charging inlet have identical voltage, therefore, first charging inlet can export charging current, the second charging inlet also can export charging current simultaneously, the charging current that first charging inlet and the second charging inlet export can merge rear output, makes the total current after merging meet or exceed 3A.Thus it is different with the voltage that the second charging inlet exports to avoid the first charging inlet, cause can only output HIGH voltage formed charging current, charging current remains about 1.8A, cannot realize the problem of quick charge.
In sum, the charging method that the disclosure provides, by High Level AC Voltage is converted into low-voltage DC, when the first charging inlet is in using state in parallel with the second charging inlet, exported the charging current with the second charging inlet with identical voltage according to low-voltage DC by the first charging inlet, and exported the charging current with the first charging inlet with identical voltage according to low-voltage DC by the second charging inlet, the first charging inlet is made to have identical voltage with the second charging inlet, identical voltage makes the first charging inlet and the second charging inlet can export charging current simultaneously, the total current after merging can be made to reach about 3A by carrying out charging current merging exporting, meet the demand of quick charge, thus solve use meet the charger of national standard cannot to the problem of electronic equipment quick charge, reach the effect improving charge efficiency.
Please refer to Fig. 6, it illustrates the method flow diagram of the charging method that another embodiment of the disclosure provides, this charging method can be applied in the charging system shown in Fig. 1 or Fig. 2 or Fig. 3 or Fig. 4.This charging method can comprise the steps.
In step 601, obtain the feedback voltage of the output of the first charging inlet and the second charging inlet, the first pwm signal and the second pwm signal is generated according to feedback voltage, the phase place of the first pwm signal and the second pwm signal is contrary, according to the first pwm signal, High Level AC Voltage is converted into the low-voltage DC exporting to the first charging inlet, and according to the second pwm signal, High Level AC Voltage is converted into the low-voltage DC exporting to the second charging inlet.
Charger connects High Level AC Voltage, and such as, the alternating current of High Level AC Voltage to be voltage be 220V, is converted into low-voltage DC by High Level AC Voltage, such as, and the direct current of low-voltage DC to be voltage be 5V.
Charger can be sampled to the output of the first charging inlet and the second charging inlet, because the first charging inlet and the second charging inlet have identical output voltage, therefore, identical to the sample feedback voltage that obtains of the first charging inlet and the second charging inlet, generate the first pwm signal and the second pwm signal according to this feedback voltage.Wherein, the phase place of the first pwm signal and the second pwm signal refers to that the duration of positive pulse in the first pwm signal is not overlapping with the duration of positive pulse in the second pwm signal on the contrary.
Because the phase place of the first pwm signal and the second pwm signal is contrary, therefore, the first charging inlet and the second charging inlet have identical voltage.
In step 602, when the first charging inlet is in normal operating condition, the first charging current is exported by the first charging inlet according to low-voltage DC.
Normal operating condition refers to that the first charging inlet is connected with common charging wire, is separately the using state of electronic equipment charging.When the first charging inlet is in normal operating condition, the output voltage of about 5V, the output current of about 1.8A can be provided for electronic equipment.
In step 603, when the second charging inlet is in normal operating condition, the second charging current is exported by the second charging inlet according to low-voltage DC.
Normal operating condition refers to that the second charging inlet is connected with common charging wire, is separately the using state of electronic equipment charging.When the second charging inlet is in normal operating condition, the output voltage of about 5V, the output current of about 1.8A can be provided for electronic equipment.
In step 604, when the first charging inlet is in using state in parallel with the second charging inlet, exported the charging current with the second charging inlet with identical voltage by the first charging inlet according to low-voltage DC, and exported the charging current with the first charging inlet with identical voltage by the second charging inlet according to low-voltage DC.
First charging inlet refers to the using state of the second charging inlet parallel connection and is connected with charging wire respectively with the second charging inlet by the first charging inlet, by charging wire, the charging current that the first charging inlet and the second charging inlet export being carried out merging to export, is power electronic equipment according to merging the charging current exported.When the first charging inlet and the second charging inlet are in using state in parallel, the output voltage of about 5V can be provided, meet or exceed the output current of 3A for electronic equipment.
Because the first charging inlet and the second charging inlet have identical voltage, first charging inlet can export charging current, the second charging inlet also can export charging current simultaneously, the charging current that first charging inlet and the second charging inlet export can merge rear output, makes the total current after merging meet or exceed 3A.Thus it is different with the voltage that the second charging inlet exports to avoid the first charging inlet, cause can only output HIGH voltage formed charging current, charging current remains about 1.8A, cannot realize the problem of quick charge.
In sum, the charging method that the disclosure provides, by High Level AC Voltage is converted into low-voltage DC, when the first charging inlet is in using state in parallel with the second charging inlet, exported the charging current with the second charging inlet with identical voltage according to low-voltage DC by the first charging inlet, and exported the charging current with the first charging inlet with identical voltage according to low-voltage DC by the second charging inlet, the first charging inlet is made to have identical voltage with the second charging inlet, identical voltage makes the first charging inlet and the second charging inlet can export charging current simultaneously, the total current after merging can be made to reach about 3A by carrying out charging current merging exporting, meet the demand of quick charge, thus solve use meet the charger of national standard cannot to the problem of electronic equipment quick charge, reach the effect improving charge efficiency.In addition, by generating the first pwm signal and the second pwm signal according to feedback voltage, first pwm signal is outputted to the first switching power circuit, second pwm signal is outputted to second switch power circuit, the phase place of the first pwm signal and the second pwm signal is contrary, can according to contrary the first pwm signal of phase place and the second pwm signal controls the first switching power circuit and second switch power circuit exports identical voltage, thus make the first charging inlet and the second charging inlet export charging current according to identical voltage simultaneously, realize reaching about 3A to the total current after the charging current exported merges simultaneously, meet the demand of quick charge.
It should be noted that: the charging system that above-described embodiment provides is when charging, only be illustrated with the division of above-mentioned each functional module, in practical application, can distribute as required and by above-mentioned functions and be completed by different functional modules, internal structure by charging system is divided into different functional modules, to complete all or part of function described above.In addition, the charging system that above-described embodiment provides and charging method embodiment belong to same design, and its specific implementation process refers to embodiment of the method, repeats no more here.
Above-mentioned disclosure embodiment sequence number, just to describing, does not represent the quality of embodiment.
One of ordinary skill in the art will appreciate that all or part of step realizing above-described embodiment can have been come by hardware, the hardware that also can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium mentioned can be read-only memory, disk or CD etc.
The foregoing is only preferred embodiment of the present disclosure, not in order to limit the disclosure, all within spirit of the present disclosure and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present disclosure.

Claims (5)

1. a charger, is characterized in that, described charger comprises:
Charging circuit, the first charging inlet be connected with described charging circuit and the second charging inlet;
Described charging circuit, for being converted into low-voltage DC by High Level AC Voltage;
Described first charging inlet, for when being in normal operating condition, exports the first charging current according to described low-voltage DC; When being in the using state in parallel with described second charging inlet, export the charging current with described second charging inlet with identical voltage according to described low-voltage DC;
Described second charging inlet, for when being in normal operating condition, exports the second charging current according to described low-voltage DC; When being in the using state in parallel with described first charging inlet, export the charging current with described first charging inlet with identical voltage according to described low-voltage DC;
Wherein, described charging circuit comprises feedback circuit, control circuit, the first switching power circuit and second switch power circuit; Described control circuit is connected with the control end of described first switching power circuit with described second switch power circuit respectively, described feedback circuit is connected with the output of described first switching power circuit with described second switch power circuit respectively, and described feedback circuit is connected with described control circuit;
Described feedback circuit, outputs to described control circuit for the feedback voltage of being sampled by the output from described first charging inlet and described second charging inlet;
Described control circuit, for generating the first pulse width modulation (PWM) signal and the second pwm signal according to described feedback voltage, described first pwm signal is outputted to described first switching power circuit, described second pwm signal is outputted to described second switch power circuit, and the phase place of described first pwm signal and described second pwm signal is contrary;
Described first switching power circuit, for described High Level AC Voltage being converted into described low-voltage DC according to described first pwm signal, and exports to described first charging inlet;
Described second switch power circuit, for described High Level AC Voltage being converted into described low-voltage DC according to described second pwm signal, and exports to described second charging inlet.
2. charger according to claim 1, it is characterized in that, the first reduction voltage circuit that described first switching power circuit comprises the first rectification circuit and is connected with described first rectification circuit, the second reduction voltage circuit that described second switch power circuit comprises the second rectification circuit and is connected with described second rectification circuit;
Described first rectification circuit is used for described High Level AC Voltage to be converted into high voltage direct current, described first reduction voltage circuit is used for, according to described first pwm signal, the described high voltage direct current that described first rectifier circuit rectifies obtains is converted into described low-voltage DC, and exports to described first charging inlet;
Described second rectification circuit is used for described High Level AC Voltage to be converted into high voltage direct current, described second reduction voltage circuit is used for, according to described second pwm signal, the described high voltage direct current that described second rectifier circuit rectifies obtains is converted into described low-voltage DC, and exports to described second charging inlet.
3. charger according to claim 1 and 2, is characterized in that, described first charging inlet and described second charging inlet are general-purpose serial bus USB interface.
4. a charging system, is characterized in that, described charging system comprises: the charger as described in as arbitrary in claims 1 to 3.
5. a charging method, in charger as claimed in claim 1, is characterized in that, described method comprises:
High Level AC Voltage is converted into low-voltage DC;
When described first charging inlet is in normal operating condition, export the first charging current by described first charging inlet according to described low-voltage DC;
When described second charging inlet is in normal operating condition, export the second charging current by described second charging inlet according to described low-voltage DC;
When described first charging inlet is in using state in parallel with described second charging inlet, exported the charging current with described second charging inlet with identical voltage by described first charging inlet according to described low-voltage DC, and exported the charging current with described first charging inlet with identical voltage by described second charging inlet according to described low-voltage DC;
Wherein, described High Level AC Voltage is converted into low-voltage DC, comprises:
Obtain the feedback voltage of the output of described first charging inlet and described second charging inlet;
Generate the first pulse width modulation (PWM) signal and the second pwm signal according to described feedback voltage, the phase place of described first pwm signal and described second pwm signal is contrary;
Described High Level AC Voltage is converted into according to described first pwm signal the low-voltage DC exporting to described first charging inlet, and described High Level AC Voltage is converted into according to described second pwm signal the low-voltage DC exporting to described second charging inlet.
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CN104135057B (en) * 2014-08-13 2016-05-18 宇龙计算机通信科技(深圳)有限公司 terminal, charger and charging method
CN105656092A (en) * 2014-11-12 2016-06-08 中兴通讯股份有限公司 Charging method and apparatus
CN104638737B (en) * 2015-03-13 2017-08-04 青岛歌尔声学科技有限公司 A kind of charging device and the charging system with the device
CN106033899B (en) * 2015-03-16 2020-09-25 联想(北京)有限公司 Charging equipment, cable and charging method
TWI573006B (en) * 2015-06-18 2017-03-01 英特爾股份有限公司 Power supplier, power supply system, and voltage adjustment method
CN106100084B (en) * 2016-07-28 2018-05-29 广东欧珀移动通信有限公司 Charging system, terminal, power supply adaptor and charging wire
CN106100085A (en) * 2016-08-16 2016-11-09 东莞市铭庆电子有限公司 A kind of quick charger
CN109804527B (en) * 2016-10-14 2021-06-15 华为技术有限公司 Charging device
CN106374592A (en) * 2016-11-30 2017-02-01 深圳天珑无线科技有限公司 Terminal and charging method

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