CN101527003A - Data card and method for supplying power by data card - Google Patents
Data card and method for supplying power by data card Download PDFInfo
- Publication number
- CN101527003A CN101527003A CN200910133928A CN200910133928A CN101527003A CN 101527003 A CN101527003 A CN 101527003A CN 200910133928 A CN200910133928 A CN 200910133928A CN 200910133928 A CN200910133928 A CN 200910133928A CN 101527003 A CN101527003 A CN 101527003A
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- Prior art keywords
- battery
- data card
- described battery
- charging current
- controlled
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3827—Portable transceivers
- H04B1/3883—Arrangements for mounting batteries or battery chargers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3816—Mechanical arrangements for accommodating identification devices, e.g. cards or chips; with connectors for programming identification devices
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a data card and a method for supplying power by the data card, belonging to the electronic circuit field. The data card comprises a data card interface, a power management center, a battery and a post emission circuit. The data card interface obtains current. The power management center controls the charging current level of the battery, is further used for detecting the state of the battery, and controls whether to charge the battery or not according to the state. The battery is used for storing the electrical energy and provides the post emission circuit with current. The invention uses a charging battery to replace the existing super capacitor with low ESR and high capacity and can provide power for post circuit with limited electrical source output power. At the same time, the battery has the characteristics of ultralow ESR and high energy storage and can avoid the dependence of the data card of a USB interface towards a low ESR super capacitor, and compared with the low ESR super capacitor, the battery has mature manufacturing technology and wide resource.
Description
Technical field
The present invention relates to electronic circuit field, the method for supplying power to of particularly a kind of data card and data card.
Background technology
At present, data card obtains to use widely, in using the data card process, during support time-division standard, GSM (Global System for Mobile Communications for example, global system for mobile communications), need to use the output stage storage capacitor of millifarad (mF) the level super capacitor of low ESR (Equivalent Serial Resistor, equivalent series resistance) inevitably as data card.If ESR is excessive, capacitance is little, then in the transmission time slot of wireless signal, can cross the low operation irregularity that causes because of capacitance voltage.In addition, because the present main flow of millifarad level super capacitor takes solid tantalum technology, make complexity, withstand voltage is low, reliable derate is few, and the probability that accident occurs is higher, and therefore, the production capacity of millifarad level super capacitor is at full stretch at present.
In realizing process of the present invention, the inventor finds:
When adopting super capacitor,, need low ESR to the requirement height of this electric capacity as the output stage storage capacitor of data card, high power capacity, yet the complex process of the super capacitor of low ESR, high power capacity, the technical threshold height, production capacity is limited.
Summary of the invention
In view of this, the embodiment of the invention provides the method for supplying power to of a kind of data card and data card, and described technical scheme is as follows:
A kind of data card, described data card comprises: data card interface, power management center, battery and back level radiating circuit;
Described data card interface is used to obtain electric current, for described battery provides charging current;
Described power management center links to each other with described data card interface, is used for the charging current size that flows through described battery is controlled, also be used for the state of battery is detected, according to described state to whether being that described battery charge is controlled;
Described battery links to each other with the power management center, electric energy is stored, for described back level radiating circuit provides electric current.
A kind of method of supplying power to of data card, described method comprises:
Be retrieved as the electric current of battery charge;
In the process of charging, the size of the charging current that flows through described battery is controlled for described battery;
State to described battery detects, according to described state to whether being that described battery charge is controlled;
Described battery storage electric energy is for back level radiating circuit provides electric current.
The beneficial effect of the technical scheme that the embodiment of the invention provides is:
Present embodiment replaces the super capacitor of existing low ESR, high power capacity by using rechargeable battery, can be the limited late-class circuit power supply of output power of power supply.Simultaneously, battery has the characteristic of ultralow ESR, high energy storage, can avoid the dependence of data card to low ESR super capacitor; And compare low ESR super capacitor, the cell production process maturation, resource is extensive.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of a kind of data card that Fig. 1 provides for the embodiment of the invention one;
The structural representation of a kind of data card that Fig. 2 provides for the embodiment of the invention two;
The structural representation of another data card that Fig. 3 provides for the embodiment of the invention two;
The method of supplying power to process flow diagram of a kind of data card that Fig. 4 provides for the embodiment of the invention three.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, embodiment of the present invention is described further in detail below in conjunction with accompanying drawing.
Embodiment one
As shown in Figure 1, the structural representation of a kind of data card that provides for the embodiment of the invention one, this supply unit comprises: data card interface 10, power management center 11, battery 12 and back level radiating circuit 13.
Present embodiment replaces the super capacitor of existing low ESR, high power capacity by using rechargeable battery, can be the limited late-class circuit power supply of output power of power supply.For example, this data card is applicable in the GSM scene when back level equipment is mobile phone, mobile phone is in conversation, the wireless signal transmission time slot of posting a letter, and this data card provides degree of stability high voltage by battery 12 for a back level radiating circuit 13, and then provides degree of stability high voltage for mobile phone.
Simultaneously, battery has the characteristic of ultralow ESR, high energy storage, can avoid the dependence of data card to low ESR super capacitor; And compare low ESR super capacitor, the cell production process maturation, resource is extensive.
Embodiment two
As shown in Figure 2, the structural representation of a kind of data card that provides for the embodiment of the invention two, this data card comprises: data card interface 10, power management center 11, battery 12 and back level radiating circuit 13, specific as follows:
Wherein, this data card interface 10 can be USB (Universal Serial Bus, a USB (universal serial bus)) interface, can also be PCI (Pedpherd Component Interconnect, peripheral element extension interface) interface etc.By these interfaces and external circuit, for example portable machine connects, and can provide charging current for the power supply in the data card.Data card interface 10 is the example explanation with the USB interface in the present embodiment.
The principle of work of the supply unit that present embodiment provides is:
When battery 12 was charged, the charging current that flows through battery 12 was can not moment too big, otherwise causes battery explosion easily, and charging control unit 111 can realize the electric current that flows through battery 12 is detected, and the size of this electric current is controlled;
In the process of charging, battery control unit 112 can be realized the state of battery 12 is detected, and then according to the state of battery 12 charging process of battery 12 is controlled.Whether wherein, the state of battery 12 can comprise and detecting whether inserting battery 12, to the voltage detecting of battery 12, detect overcharging.
In the present embodiment, power management center 11 can be selected IC (integratecircuit, the integrated circuit) chip that can realize power management for use.Battery 12 can be selected lithium electricity rechargeable battery or nickel-hydrogen chargeable cell etc. for use.
Further, as shown in Figure 3, the structural representation of another data card that provides for the embodiment of the invention two.Among this figure, charging control unit 111 comprises that charging current detects loop 1111 and charging control loop 1112; Battery control unit 112 comprises battery detecting loop 1121 and battery control loop 1122.In the supply unit shown in Figure 3, charging control unit 111 also comprises resistance x, is used to detect electric current; Triode y is used for the Control current size; Battery control unit 112 also comprises switching tube z, is used for by break-make battery 12 being charged.
Further, this data card can also comprise that power supply inserts detecting unit 113, and whether the data card that is used to detect this USB interface has the external power input, and whether the polarity of external power input whether voltage range correct and external power meets etc.
Above-mentioned each unit and loop all can be realized by integrated circuit.
In the present embodiment, the principle of work of supply unit shown in Figure 3 is:
(1) to the control procedure of charging current:
USB interface is inserted external power, and promptly USB interface has the external power input, and battery 12 is charged.In charging process, have an accident for fear of the excessive battery 12 that causes of charging current, adopt resistance x that charging current is detected.Can be by the voltage at quantitative check resistance x two ends, obtain to flow through the electric current of resistance x by pressure drop, promptly obtain electric current for battery 12 chargings.After charging current detection loop 1111 obtains to flow through the electric current of resistance x, compare with predefined maximum current, when charging current surpassed predefined maximum current, charging current detected loop 1111 charging current is fed back to charging control loop 1112; The base current of triode y is flow through in 1112 controls of charging control loop, the base current that flows through triode y is reduced, thereby the collector current that flows through triode y reduces, and the electric current that then flows through resistance x also reduces.After the current flowing resistance, battery 12 is charged, therefore, charging current also reduces.
Wherein, charging current detects loop 1111 and charging control loop 1112 all can be realized by integrated circuit, also can realize by software.
(2) to the charging control process of battery 12:
State by the 1121 pairs of batteries 12 in battery detecting loop detects, if phenomenon appears overcharging in battery 12, or battery 12 also is not charged to rated voltage, battery detecting loop 1121 all can feed back to battery control loop 1122 with the result who detects, battery control loop 1122 is according to the break-make of this feedback result gauge tap pipe z, when switching tube z conducting, battery 12 is charged; Turn-off, then do not charge.
In the present embodiment, battery detecting loop 1121 and battery control loop 1122 all can be realized by integrated circuit, also can realize by software.
Present embodiment replaces the super capacitor of existing low ESR, high power capacity by using rechargeable battery, can be the limited late-class circuit power supply of output power of power supply.Simultaneously, battery has the characteristic of ultralow ESR, high energy storage, can avoid the dependence of the data card of USB interface to low ESR super capacitor; And compare low ESR super capacitor, the cell production process maturation, resource is extensive.Present embodiment is also controlled, whether battery is charged control the charging current size of battery by the power management center, makes battery can be operated in preferable states.
Embodiment three
As shown in Figure 4, the method for supplying power to process flow diagram of a kind of data card that provides for present embodiment, this method comprises:
401: the electric current that is retrieved as battery charge;
402: in the process of charging, the size of the charging current that flows through battery is controlled for battery;
403: the state to battery detects, according to state to whether being that battery charge is controlled;
404: the battery storage electric energy, for back level radiating circuit provides electric current.
Further, before being controlled, the size of the charging current that flows through battery also comprises:
The size of the charging current of battery is flow through in detection.
Further, the size of the charging current that flows through battery controlled comprised:
When the charging current that flows through battery surpasses default maximum current, reduce to flow through the charging current of battery.
Further, the state of battery is detected, according to state to whether being that battery charge is controlled and comprised:
Voltage to battery detects, and after the voltage of battery reaches ratings, stops battery charge;
After the voltage of battery does not reach ratings, continue battery charge.
In the present embodiment, battery types can have multiple choices, for example lithium electricity rechargeable battery or nickel-hydrogen chargeable cell etc.
Present embodiment replaces the super capacitor of existing low ESR, high power capacity by using rechargeable battery, can be the limited late-class circuit power supply of output power of power supply.Simultaneously, battery has the characteristic of ultralow ESR, high energy storage, can avoid the dependence of the data card of USB interface to low ESR super capacitor; And compare low ESR super capacitor, the cell production process maturation, resource is extensive.Present embodiment is also controlled, whether battery is charged control the charging current size of battery by the power management center, makes battery can be operated in preferable states.
It will be appreciated by those skilled in the art that accompanying drawing is the synoptic diagram of a preferred embodiment, module in the accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.The module of the foregoing description can be merged into a module, also can further split into a plurality of submodules.
The invention described above embodiment sequence number is not represented the quality of embodiment just to description.
Part steps in the embodiment of the invention can utilize software to realize that corresponding software programs can be stored in the storage medium that can read, as CD or hard disk etc.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a data card is characterized in that, described data card comprises: data card interface, power management center, battery and back level radiating circuit;
Described data card interface is used to obtain electric current, for described battery provides charging current;
Described power management center links to each other with described data card interface, is used for the charging current size that flows through described battery is controlled, also be used for the state of battery is detected, according to described state to whether being that described battery charge is controlled;
Described battery links to each other with the power management center, electric energy is stored, for described back level radiating circuit provides electric current.
2. data card according to claim 1 is characterized in that, described power management center comprises:
Charging control unit is used for the charging current size that flows through described battery is controlled;
Battery control unit is used for the state of described battery is detected, and according to described state to whether being that described battery charge is controlled.
3. data card according to claim 2 is characterized in that, described charging control unit comprises:
Charging current detects the loop, is used to detect the size of the charging current that flows through described battery;
The charging control loop is used for according to the testing result in described charging current detection loop the charging current size that flows through described battery being controlled.
4. data card according to claim 2 is characterized in that, described battery control unit comprises:
The battery detecting loop is used for the state of described battery is detected;
Whether the battery control loop is used for according to the testing result in described battery detecting loop being that described battery charge is controlled.
5. according to the described data card of claim 1-4, it is characterized in that described battery is lithium electricity rechargeable battery or nickel-hydrogen chargeable cell.
6. the method for supplying power to of a data card is characterized in that, described method comprises:
Be retrieved as the electric current of battery charge;
In the process of charging, the size of the charging current that flows through described battery is controlled for described battery;
State to described battery detects, according to described state to whether being that described battery charge is controlled;
Described battery storage electric energy is for back level radiating circuit provides electric current.
7. method according to claim 6 is characterized in that, described size to the charging current that flows through described battery also comprises before controlling:
The size of the charging current of described battery is flow through in detection.
8. method according to claim 7 is characterized in that, described size to the charging current that flows through described battery is controlled and comprised:
When the charging current that flows through described battery surpasses default maximum current, reduce the described charging current that flows through described battery.
9. method according to claim 6 is characterized in that, described state to described battery detects, according to described state to whether being that described battery charge is controlled and comprised:
Voltage to described battery detects, and after the voltage of described battery reaches ratings, stops described battery charge;
After the voltage of described battery does not reach ratings, continue described battery charge.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910133928A CN101527003A (en) | 2009-04-10 | 2009-04-10 | Data card and method for supplying power by data card |
| PCT/CN2010/070479 WO2010115355A1 (en) | 2009-04-10 | 2010-02-02 | Data card and method for supplying power by data card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910133928A CN101527003A (en) | 2009-04-10 | 2009-04-10 | Data card and method for supplying power by data card |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101527003A true CN101527003A (en) | 2009-09-09 |
Family
ID=41094863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910133928A Pending CN101527003A (en) | 2009-04-10 | 2009-04-10 | Data card and method for supplying power by data card |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101527003A (en) |
| WO (1) | WO2010115355A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010115355A1 (en) * | 2009-04-10 | 2010-10-14 | 华为终端有限公司 | Data card and method for supplying power by data card |
| CN101887530A (en) * | 2010-07-07 | 2010-11-17 | 中兴通讯股份有限公司 | Switching device provided with a battery data card and implementation method of power conservation |
| CN103312521A (en) * | 2012-03-06 | 2013-09-18 | 中兴通讯股份有限公司 | Control method of data card and data card |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100511096C (en) * | 2006-08-29 | 2009-07-08 | 中兴通讯股份有限公司 | Data card self-adapting power supply method and system |
| CN101192091B (en) * | 2006-11-17 | 2010-04-21 | 中兴通讯股份有限公司 | Data card powering method and system |
| CN101527003A (en) * | 2009-04-10 | 2009-09-09 | 深圳华为通信技术有限公司 | Data card and method for supplying power by data card |
-
2009
- 2009-04-10 CN CN200910133928A patent/CN101527003A/en active Pending
-
2010
- 2010-02-02 WO PCT/CN2010/070479 patent/WO2010115355A1/en active Application Filing
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010115355A1 (en) * | 2009-04-10 | 2010-10-14 | 华为终端有限公司 | Data card and method for supplying power by data card |
| CN101887530A (en) * | 2010-07-07 | 2010-11-17 | 中兴通讯股份有限公司 | Switching device provided with a battery data card and implementation method of power conservation |
| WO2012003736A1 (en) * | 2010-07-07 | 2012-01-12 | 中兴通讯股份有限公司 | Switch device of data card with battery and realization method for saving power thereof |
| CN101887530B (en) * | 2010-07-07 | 2013-11-06 | 中兴通讯股份有限公司 | Switching device provided with a battery data card and implementation method of power conservation |
| US8826044B2 (en) | 2010-07-07 | 2014-09-02 | Zte Corporation | Switch device of data card with battery and realization method for saving power thereof |
| CN103312521A (en) * | 2012-03-06 | 2013-09-18 | 中兴通讯股份有限公司 | Control method of data card and data card |
| CN103312521B (en) * | 2012-03-06 | 2017-02-15 | 中兴通讯股份有限公司 | Control method of data card and data card |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2010115355A1 (en) | 2010-10-14 |
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Open date: 20090909 |