CN100358211C - Charging set for handset - Google Patents
Charging set for handset Download PDFInfo
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- CN100358211C CN100358211C CNB2003101182757A CN200310118275A CN100358211C CN 100358211 C CN100358211 C CN 100358211C CN B2003101182757 A CNB2003101182757 A CN B2003101182757A CN 200310118275 A CN200310118275 A CN 200310118275A CN 100358211 C CN100358211 C CN 100358211C
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Abstract
The present invention discloses a charging device for a mobile phone, which charges the mobile phone by the power supply for a computer. The present invention is arranged in the computer, and comprises a power supply unit, a detection control unit and a charging circuit unit, wherein the detection control unit is connected with the real-time clock circuit of the computer, the power supply unit and the charging circuit unit, and is used for detecting the charging conditions of the power supply for a computer and the mobile phone, and controlling the work of the power supply unit and the charging circuit unit; the power supply unit is also connected with an external power supply and the charging circuit unit, and is used for providing a working power supply for the charging device for a mobile phone and a power supply for the charging circuit unit; the charging circuit unit is used for converting the power supply to the charging power supply for the mobile phone, and providing a charging interface for the mobile phone; the present invention can charge the mobile phone in time when the mobile phone is in power off with the advantage of convenient use, and regulate charging voltage and a charging current in real time so as to protect the mobile phone and the computer.
Description
Technical field
The present invention relates to a kind of charging device of electronic product, especially relate to a kind of charging equipment for mobile phone that makes things convenient for cell-phone charging.
Background technology
Along with the raising of science and technology development and people's living standard, the use of mobile phone is more and more general, and especially, mobile phone has become the business people, the important communication and the media of communication carried of personage's indispensability of the work of especially often going on business or go out.Mobile phone generally has battery, and institute's charged pool has certain stand-by time and air time, all needs charging in use for some time, and general at present to adopt the independent charger for mobile phone as Cellphone Accessories be cell-phone charging.But people run into such situation through regular meeting: because certain day phone is too many or other reasons causes mobile phone not have electricity suddenly, and this moment charger for mobile phone not at one's side, thereby influence work and exchange; Perhaps, cause not carrying charger for mobile phone and influence communication, even cause the loss of great commercial interest going out do not have scrutiny before office or the travelling.
Along with the continuous development of information technology, computer also obtains very big popularizing, and for the work and the living needs of modern society, generally all is equipped with desktop computer in office, family or other occasions.
Simultaneously, computer miniaturization day by day.Now notebook computer is very ripe in technology, and is more and more lighter, thin, little, be easy to carry, and function, performance become stronger day by day.Notebook computer has become a lot of business people, especially needs the personage's that often goes on business and go out to handle official business work necessity.
Therefore, charger for mobile phone and computer (comprising desktop computer, notebook computer) are combined, adopt computer to give cell-phone charging, can provide bigger convenience to people.Especially, because the portability of notebook computer and mobile phone, for the need of work of modern society, people go on business and go out to handle official business and often carry notebook computer and mobile phone simultaneously again.So under the artificial situation, give cell-phone charging outside, be a kind of comparatively desirable solution with notebook computer.
A kind of is that the prior art of cell-phone charging can be consulted denomination of invention and is " the mobile phone device of tool computer universal serial bus interface " by computer, and application number is 99255202 Chinese utility model patent.Described charger for mobile phone comprises the compatible plug of universal serial bus interface, DC voltage converting circuit, the mobile phone charging connector that is connected on computer or the computer peripheral, utilize the compatible plug of universal serial bus interface that the power supply on the universal serial bus interface is taken out, pass through DC voltage converting circuit, convert the charging connector of mobile phone required voltage to, for the mobile phone charging to mobile phone.
It is cell-phone charging that described prior art mobile phone device can adopt computer, but it has some limitation: at first, owing to need be connected mobile phone and computer with the mobile phone charging connector by the compatible plug of universal serial bus interface, described device is not placed on scene at one's side in the time of mobile phone still may occurring and do not have electricity, thereby influences exchange and conmmunication; Secondly, in the charging process, the electric current and the voltage of charging can't be controlled, the damage of mobile phone or computer might be caused according to the charge condition of mobile phone; Once more,, cause its volume bigger, be not easy to carry because the charging voltage of the power supply that takes out from the universal serial bus interface and mobile phone sometimes and do not match, needs the employing DC voltage converting circuit; Once more, the power supply of prior art charger for mobile phone can't switch between a plurality of power supplies flexibly only from the universal serial bus interface.
Summary of the invention
Because prior art may in time be cell-phone charging sometimes by the charging equipment for mobile phone that computer draws power supply, the technical problem that the present invention solves is to provide a kind of charging equipment for mobile phone of cell-phone charging of being convenient in time be.
On this basis, another technical problem of the present invention's solution is to provide a kind of charging equipment for mobile phone that can switch between a plurality of power supplies.
For this reason, the technical scheme of technical solution problem of the present invention is: a kind of charging equipment for mobile phone is provided, and drawing computer power is cell-phone charging, and it is arranged at computer inside, comprises power supply unit, detects control unit and charging circuit unit; Described detection control unit connects computer real time clock circuit, power supply unit and charging circuit unit, is used to detect computer power and cell-phone charging situation and controls power supply unit and the work of charging circuit unit; Described power supply unit also connects external power supply and charging circuit unit, is used to described charging equipment for mobile phone that working power is provided, for the charging circuit unit provides power supply; Described charging circuit unit is used for power supply is converted to the cell-phone charging power supply and mobile phone charging interface is provided.
The present invention further improves and is: described computer is a notebook computer, and described power supply unit also connects cells in notebook computer; Described power supply unit comprises the power supply switch unit, is used to switch external power supply or cells in notebook computer as power supply.
Wherein, described power supply switch unit is made up of first switch element and second switch unit, described first switch element and second switch unit are connected to notebook computer external power supply and cells in notebook computer respectively, and switch unit receives from control signal that detects control unit and intelligence and switches power supply.
Wherein, described charging circuit unit comprises current detection circuit, and the operating current that is used to detect the supply current of external power supply and notebook computer is with in good time adjustment cell-phone charging power supply.
Wherein, described charging circuit unit also connects external power supply and cells in notebook computer, and being used to draw external power supply is the cells in notebook computer charging.
Wherein, described charging equipment for mobile phone is arranged on the computer main board.
Wherein, also comprise adapter, described adapter connects the charging circuit unit, is used to mate the mobile phone of corresponding types and reads type of cell phone information.
Wherein, described detection control unit is embedded controller or single-chip microcomputer.
Wherein, also comprise indicating member, described indicating member joint detection control unit is used to show charged state.
With respect to prior art, the invention has the beneficial effects as follows: at first,, thereby, can not have electricity and charger in time is not cell-phone charging under at one's side the situation at mobile phone in the modern society that computer is popularized because charging equipment for mobile phone of the present invention is arranged on computer inside; Secondly, owing to utilize the computer real time clock circuit as the working power that detects control unit, detecting control unit and also be in the work clothes attitude when computer is not started shooting, can be cell-phone charging at any time; Once more, during charging, detecting control unit can be according to detection case, and charging voltage and electric current are in time adjusted, better protection computer and mobile phone in control charging circuit unit.
Beneficial effect of the present invention also is: when charging equipment for mobile phone of the present invention is arranged at the mainboard of notebook computer, can also adopt the circuit that charges for cells in notebook computer in the notebook computer, thereby the resource of making full use of, and can between external power supply and cells in notebook computer, intelligence switch power supply, more convenient user uses.
Description of drawings
Fig. 1 is the charging schematic diagram of charging equipment for mobile phone first execution mode of the present invention;
Fig. 2 is the circuit block diagram of charging equipment for mobile phone first execution mode of the present invention;
Fig. 3 is the module map that detects control unit shown in Fig. 2;
Fig. 4 is the circuit theory diagrams of power supply unit shown in Fig. 2;
Fig. 5 is the schematic diagram of the unit of charging circuit shown in Fig. 2;
Fig. 6 is the schematic diagram of adapter shown in Fig. 2;
Fig. 7 is the workflow diagram of charging equipment for mobile phone first execution mode of the present invention;
Fig. 8 is the circuit block diagram of charging equipment for mobile phone second execution mode of the present invention.
Embodiment
Please refer to Fig. 1, is the charging schematic diagram of first embodiment of the invention.In this execution mode, charging equipment for mobile phone is arranged in the mainboard of notebook computer 800, can comprise adapter 140.Mobile phone 900 is connected with notebook computer 800 by described adapter 140, obtains required charging voltage and electric current.
See also Fig. 2, charging equipment for mobile phone 100 of the present invention comprises power supply unit 110, detects control unit 120 and charging circuit unit 130.Described power supply unit 110 is connected with detection control unit 120, charging circuit unit 130, is used to charging equipment for mobile phone 100 power supplies; Described detection control unit connects power supply unit 110, charging circuit unit 130, is used to detect the charge condition of the state of each unit and mobile phone 900 and controls the work of each unit; Described charging circuit unit 130 connects mobile phone 900 by adapter 140, provides charging current and voltage for mobile phone 900 under the control that detects control unit 120.
Because mobile phone is of a great variety at present, and the charging inlet of different mobile phones is also inequality, charging equipment for mobile phone 100 of the present invention adopts adapter 140 to adapt to multiple mobile phone, and described adapter 140 can employing kenel and the structure corresponding with the mobile phone of different brands, model.
In order to show charge condition to remind the user, charging equipment for mobile phone 100 of the present invention also comprises indicating member 150, and described indicating member 150 joint detection control units 120 show under the control that detects control unit 120.
In the charging equipment for mobile phone 100 of the present invention, described detection control unit 120 can adopt embedded controller, and (Embedded Controller EC) or single-chip microcomputer, cooperates to handle by software and hardware and detects and control.Owing to all adopt now an embedded controller to be used for detecting and control signal in the notebook computer in the notebook computer, and can realize custom feature, so present embodiment preferably adopts embedded controller to realize detecting and control.
See also Fig. 2 and Fig. 3, described detection control unit 120 comprises processor 121, internal bus 122, external bus 123 and a plurality of GPIO (General Purpose Input Output, general input/output interface) interface 124.Described processor 121 is connected to computer real time clock circuit 600 by internal bus 122, connects GPIO interface 124 by external bus 123, outwards sends control signal by GPIO interface 124 simultaneously in order to handle the detection signal that writes by GPIO interface 124; Described GPIO interface 124 is custom feature as required, in order to the input of realization detection signal and the output (described signal sees aftermentioned for details) of control signal.
(Real-time Clock, RTC) 600 is battery-powered clock circuits on the computer main board to described computer real time clock circuit, is used to whole computer system that the timing standard is provided, and saved system is described and Configuration Values.
The power supply of computer real time clock circuit 600 is a button cell on the desktop computer mainboard, can be the series connection of a plurality of button cells on notebook computer, not have external power supply, battery or not have under the situation of start to provide power supply for whole notebook computer saved system description and Configuration Values at notebook computer.
See also Fig. 2 and Fig. 4, described power supply unit 110 comprises the power supply switch unit, in the present embodiment, described power supply switch unit is first switching circuit 111 and second switch circuit 112, be connected to notebook computer external power supply 400 and cells in notebook computer 500 respectively, it receives from control signal that detects control unit 120 and intelligence and switches power supply.In detail, when detecting control unit 120 and send external power supply signal PWR_AC, 111 conductings of first switching circuit are externally provided by power supply unit 110 as power supply signal V_SYSTEM from the external power supply voltage V_IN of external power supply 400; When detecting control unit 120 and send cells in notebook computer signal PWR_BATA, 112 conductings of second switch circuit are externally provided by power supply unit 110 as power supply signal V_SYSTEM from the voltage V_NBATA of cells in notebook computer 500.
See also Fig. 2 and Fig. 5, described charging circuit unit 130 is connected with power supply unit 110 to receive power supply signal V_SYSTEM, is connected to receive control signal and to convert power supply signal V_SYSTEM to required cell-phone charging voltage V_MBATA according to control signal with detection control unit 120.
Described charging circuit unit 130 can adopt existing circuit for cells in notebook computer 500 chargings in the notebook computer 800, also can adopt integrated chip and discrete electrons components and parts to be provided with separately.Correlation technique is that the electric field technical staff is known, and this does not give unnecessary details.
Described charging circuit unit 130 comprises input 131, output 132 and control signal receiving terminal 133, described input 131 receives power supply signal V_SYSTEM, to adapter 140, the control signal from detecting control unit 120 that described control signal receiving terminal 133 receives comprises the voltage value signal CV_SET that opens charging mobile phone battery signal BATSEL-M, sets charging and sets the current value signal CC_SET of charging described output 132 with cell-phone charging voltage V_MBATA.Described charging circuit unit 130 can also comprise current detection circuit (figure does not show), in the circuit that forms with notebook computer external power supply 400 and cells in notebook computer 500, increase resistance, can record the supply current and the charging current of notebook computer 800, and adjust charging current according to the working condition of notebook computer 800, charging process can not influence the notebook computer operate as normal like this.
What need further specify is, because described charging circuit unit 130 can adopt existing circuit for cells in notebook computer 500 chargings in the notebook computer 800, so charging equipment for mobile phone of the present invention 100 also can be realized the charging of 400 pairs of cells in notebook computer 500 of notebook computer external power supply.
Described adapter 140 exports cell-phone charging voltage V_MBATA to mobile phone 900.Certainly, described charging circuit unit 130 and adapter 140 also can become one.Described adapter 140 comprises charge power supply input 141, charge power supply output 142 and type of cell phone identification end 143; Described charge power supply input 141 receives cell-phone charging voltage V_MBATA; Described charge power supply output 142 is output as mobile phone 900 chargings with cell-phone charging voltage V_MBATA; Described type of cell phone identification end 143 is connected to and detects control unit 120, in order to identification mobile phone model when mating different mobile phones.In the present embodiment, the number of type of cell phone identification end 143 is three, and its signal ID0, ID1 and ID2 can constitute eight combinations (000,001,010,011,100,101,110,111) to discern eight class mobile phones.Certainly, the number of this type of cell phone identification end 143 is not limited to present embodiment, can be provided with flexibly as required.
For fixing user, described adapter 140 can also be inserted and secured in the notebook computer 800.
In addition, also can be at adapter 140 or charge power supply output 142 integrated a plurality of same types or dissimilar charging inlets.
Described cellphone information identification can also be undertaken by I2C bus (figure does not show), and the I2C bus was developed before 20 years and released by Philips Semiconductor Co., Ltd., was a kind of two-wire bidirectional linked list data highway system with multiterminal control ability.I2C can be used for the parallel bus of alternate standard.
Seeing also Fig. 7, is the workflow diagram of present embodiment charging equipment for mobile phone.Connect computer real time clock circuit 600 owing to detect control unit 120, so it can be in running order all the time, and regularly enter charging procedure.
Whether have adapter 140 insert, if detected value is for being then to enter step S1 if at first detecting; Otherwise the complete charge program detects control unit 120 and sends charging completion signal, makes charging circuit unit 130 cut off charge circuit, stops charging.
Step S1 is the type of detection of handset 900.Read the information of adapter 140, hold 143 to send to detection control unit 120 by the type of cell phone identification of adapter 140.
Detect control unit 120 simultaneously and judge the situation of cells in notebook computer 500 and external power supply 400, when notebook computer 800 connects external power supply 400, send external power supply signal PWR_AC, external power supply voltage V_IN is externally provided by power supply unit 110 as power supply signal V_SYSTEM; When notebook computer 800 does not connect external power supply 400, send cells in notebook computer signal PWR_BATA, the voltage V_NBATA of cells in notebook computer 500 is externally provided by power supply unit 110 as power supply signal V_SYSTEM.
Detection of handset self power supply simultaneously, if battery of mobile phone is full of, termination routine then, otherwise enter step S2.
Step S2 detects control unit 120 transmissions to open charging mobile phone battery signal BATSEL_M to charging circuit unit 130, the current value signal CC_SET that judges the charging voltage and the electric current of needs according to the type of mobile phone 900 simultaneously and send the voltage value signal CV_SET of setting charging and set charging begins to charge to charging circuit unit 130.
In the process of giving mobile phone 900 chargings, detect control unit 120 and also can transmit control signal, in order to the prompting operating state to indicating member 150.Described indicating member 150 can be but be not limited to luminescent device or auditory tone cues device that present embodiment adopts light-emitting diode (LED).When charging, detect control unit 120 and send pulse signal to indicating member 120, indicating member 150 flickers are carried out with prompting user charging; After charging is finished, detect control unit 120 and send level signal to indicating member 150, indicating member 150 Chang Liang finish with prompting user charging, can take off use.
Certainly, whether control unit 120 is in running order always has mobile phone or adapter to insert to detect for fear of detecting, also can adopt another mode: when mobile phone or adapter insertion, notebook computer 800 produces and interrupts, and makes to detect control unit 120 startup charging procedures.
Seeing also Fig. 8, is the schematic diagram of second embodiment of the invention.In this execution mode, charging equipment for mobile phone 200 comprises power supply unit 210, detects control unit 220 and charging circuit unit 230, be arranged in the desktop computer mainboard of (figure does not show), mobile phone 900 is connected with desktop computer by adapter 240 during charging, obtains required charging voltage and electric current.Certainly, similar with first execution mode, described charging equipment for mobile phone 200 can also comprise indicating member 250.
Second embodiment of the invention is identical substantially with first execution mode, and difference mainly is: described power supply unit 210 only is used for drawing electric power and offering whole charging equipment for mobile phone 200 from computer external power supply 401.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (9)
1, a kind of charging equipment for mobile phone, drawing computer power is cell-phone charging, it is characterized in that: be arranged at computer inside, comprise power supply unit, detect control unit and charging circuit unit;
Described detection control unit connects computer real time clock circuit, power supply unit and charging circuit unit, is used to detect computer power and cell-phone charging situation and controls power supply unit and the work of charging circuit unit;
Described power supply unit also connects external power supply and charging circuit unit, is used to described charging equipment for mobile phone that working power is provided, for the charging circuit unit provides power supply;
Described charging circuit unit is used for power supply is converted to the cell-phone charging power supply and mobile phone charging interface is provided.
2, charging equipment for mobile phone according to claim 1 is characterized in that: described computer is a notebook computer, and described power supply unit also connects cells in notebook computer; Described power supply unit comprises the power supply switch unit, is used to switch external power supply or cells in notebook computer as power supply.
3, charging equipment for mobile phone according to claim 2, it is characterized in that: described power supply switch unit is made up of first switch element and second switch unit, described first switch element and second switch unit are connected to notebook computer external power supply and cells in notebook computer respectively, and switch unit receives from control signal that detects control unit and intelligence and switches power supply.
4, charging equipment for mobile phone according to claim 2 is characterized in that: described charging circuit unit comprises current detection circuit, and the operating current that is used to detect the supply current of external power supply and notebook computer is with in good time adjustment cell-phone charging power supply.
5, according to each described charging equipment for mobile phone of claim 2 to 4, it is characterized in that: described charging circuit unit also connects external power supply and cells in notebook computer, and being used to draw external power supply is the cells in notebook computer charging.
6, according to each described charging equipment for mobile phone of claim 1 to 4, it is characterized in that: described charging equipment for mobile phone is arranged on the computer main board.
7, according to each described charging equipment for mobile phone of claim 1 to 4, it is characterized in that: also comprise adapter, described adapter connects the charging circuit unit, is used to mate the mobile phone of corresponding types and reads type of cell phone information.
8, according to each described charging equipment for mobile phone of claim 1 to 4, it is characterized in that: described detection control unit is embedded controller or single-chip microcomputer.
9, according to each described charging equipment for mobile phone of claim 1 to 4, it is characterized in that: also comprise indicating member, described indicating member joint detection control unit is used to show charged state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101182757A CN100358211C (en) | 2003-12-09 | 2003-12-09 | Charging set for handset |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101182757A CN100358211C (en) | 2003-12-09 | 2003-12-09 | Charging set for handset |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1627590A CN1627590A (en) | 2005-06-15 |
| CN100358211C true CN100358211C (en) | 2007-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2003101182757A Expired - Fee Related CN100358211C (en) | 2003-12-09 | 2003-12-09 | Charging set for handset |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101391758B1 (en) * | 2007-01-11 | 2014-05-07 | 삼성전자 주식회사 | Battery module and computer system and power supply method thereof |
| US8112641B2 (en) * | 2007-12-26 | 2012-02-07 | Cisco Technology, Inc. | Facilitating communication and power transfer between electrically-isolated powered device subsystems |
| CN104079020B (en) * | 2013-03-29 | 2016-12-21 | 青岛玉兰祥商务服务有限公司 | Computer and charging circuit thereof |
| CN104423278B (en) * | 2013-08-27 | 2017-09-26 | 华为终端有限公司 | Mobile power supply terminal and its method of supplying power to |
| CN104578202A (en) * | 2013-10-18 | 2015-04-29 | 岳造宇 | Portable charging device |
| WO2015106390A1 (en) * | 2014-01-14 | 2015-07-23 | 吉瑞高新科技股份有限公司 | Electronic cigarette identification device, electronic cigarette case, and method for identifying electronic cigarette |
| CN105045671B (en) * | 2015-08-17 | 2018-04-03 | 广东欧珀移动通信有限公司 | The method for upgrading system and device of a kind of intelligent terminal |
| CN110401240B (en) * | 2019-06-28 | 2022-06-28 | 联想(北京)有限公司 | Power supply method and electronic equipment |
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|---|---|---|---|---|
| CN2406404Y (en) * | 1999-11-26 | 2000-11-15 | 杨博曾 | Mobile telephone charger with computer general used serial collecting-gang interface |
| US6211649B1 (en) * | 1999-03-25 | 2001-04-03 | Sourcenext Corporation | USB cable and method for charging battery of external apparatus by using USB cable |
| JP2002258989A (en) * | 2001-02-28 | 2002-09-13 | Reudo Corp | Charging device for usb port |
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2003
- 2003-12-09 CN CNB2003101182757A patent/CN100358211C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6211649B1 (en) * | 1999-03-25 | 2001-04-03 | Sourcenext Corporation | USB cable and method for charging battery of external apparatus by using USB cable |
| CN2406404Y (en) * | 1999-11-26 | 2000-11-15 | 杨博曾 | Mobile telephone charger with computer general used serial collecting-gang interface |
| JP2002258989A (en) * | 2001-02-28 | 2002-09-13 | Reudo Corp | Charging device for usb port |
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| CN1627590A (en) | 2005-06-15 |
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Granted publication date: 20071226 Termination date: 20201209 |