CN101192091B - Data card powering method and system - Google Patents
Data card powering method and system Download PDFInfo
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- CN101192091B CN101192091B CN2006101569284A CN200610156928A CN101192091B CN 101192091 B CN101192091 B CN 101192091B CN 2006101569284 A CN2006101569284 A CN 2006101569284A CN 200610156928 A CN200610156928 A CN 200610156928A CN 101192091 B CN101192091 B CN 101192091B
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Abstract
The invention relates to a power supply method and a system of data card, the power supply method is used when the data card is operated together with an electronic device through PCMCIA interface; firstly, the level value of the work state of the data card is detected, if the level value of the work state is higher than a calibrated reference level value, the data card is in calibration state, otherwise, the data card is in normal work state; if the data card is in the calibration state, an external power is used to supply power for a power amplifying unit of the data card and to supply power for other system of the data card through PCMCIA interface. In the technical proposal provided by the invention, when the data card is in the calibration state, the current required by the power amplifying unit of the data card is totally provided by the external power, the supplied current can be freely adjusted according to the power rate of the power amplifying unit, the current is very big in calibration process, the external power supplying method is very easy, flexible and reliable.
Description
Technical field
The present invention relates to a kind of method of supplying power to and system, especially a kind of method of supplying power to of data card and system.
Background technology
General data card product all is based on the product of pcmcia interface (being used in a kind of interface specification on the portable equipment such as the notebook computer specially) power supply of notebook computer, according to the supply standard of pcmcia interface, its maximum output current generally is no more than 1 ampere.For some standard such as EDGE (Enhanced Data rate forGSM Evolution, the enhancing data rate of GSM evolution) at when calibration its required maximum current even can reach 2 amperes, perhaps in the bigger occasion of some radio-frequency power, the electric current that needs during calibration also may be above 1 ampere, can not satisfy system requirements if also adopt the pcmcia interface power supply, because the supply current of input end is limited, if do not take necessary current limiting measures, interface output power deficiency will cause the pcmcia port electric voltage dropping to very low value, system will cross low the generation and reset owing to supply voltage, phenomena of the failure such as deadlock, more severe patient causes working with notebook computer undesired.
On the other hand, in the actual production process of data card, the circuit board behind the finished product all needs mounting structure spare, is performance demands on the one hand, also is that the needs that pcmcia interface is protected pcmcia interface are simultaneously injected in accurate contraposition on the other hand.Generally speaking, data card is all calibrated before assembling structure spare, after calibration is finished for the structural member that installs again more easy to use.But after calibration was good, sometimes for the adjustment of convenient test or network parameter, data card need be calibrated again.Because after in a single day data card has adorned structural member, except a small amount of hole such as the jack of pcmcia interface and earphone jack, other place of data card all has been closed by structural member, could calibrate with original method after the data card that structural member therefore has been installed need be taken structural member again apart.When producing data card in enormous quantities, data card is when recalibration, the workload of disassembly and assembly structure spare is very big, and be easy to damage structural member during repeated disassembled and assembled, because each calibration is all wanted dismounting data card structural member once, with regard to making the flow process of calibration become complicated, not only reduced efficient like this, and increased cost, be unfavorable for data card recalibration in large quantity.
Summary of the invention
The technical problem to be solved in the present invention provide a kind of when solving the big correcting current of data card because the method for supplying power to and the system of the data card of the problem that the pcmcia interface electricity shortage brings.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of method of supplying power to of data card, the method for supplying power to for data card during by pcmcia interface and electronic installation cooperating comprises:
Step 1: detect the duty level value of described data card, if described duty level value is higher than the calibration reference level value, described data card is in align mode, otherwise described data card is in normal operating conditions, is powered by internal power supply system;
Step 2: if described data card is in align mode, then give the power amplifier power supply of described data card by external power source, other system of data card still adopts the internal power supply system power supply.
According to one preferred embodiment of the present invention, when described data card is in align mode, described external power source is given described data card power supply by the calibration power supply port of described data card.
According to one preferred embodiment of the present invention, described calibration power supply port is the special hole of reserving or other perforate of described data card behind the described data card mounting structure spare.
A kind of electric power system of data card comprises bleeder mechanism, internal load and is connected to the internal power supply system of internal load by described bleeder mechanism that described internal load comprises band processing system and data card power amplifier; Also comprise the external power source that is selectively connected thereto internal load by described bleeder mechanism; When described data card is in normal operating conditions, power by internal power supply system; When described data card was in align mode, by the power amplifier power supply that external power source is given described data card, other system of data card still adopted the internal power supply system power supply.
According to one preferred embodiment of the present invention, described external power source is connected to the bleeder mechanism of described data card electric power system by the calibration power supply port of described data card when described data card is in align mode.
According to one preferred embodiment of the present invention, described calibration power supply port is the special hole of reserving or other perforate of described data card behind the described data card mounting structure spare.
According to one preferred embodiment of the present invention, described internal power supply system comprises the supply convertor that pcmcia interface and described data card carry.
Beneficial effect of the present invention mainly shows: data card is when align mode in the technical scheme provided by the invention, the needed electric current of data card power amplifier is provided by external power source fully, supply current can freely be adjusted according to the power of power amplifier, electric current is very big when calibration, and is very convenient, flexible, reliable with the mode of outer power supply source.Simultaneously, calibration power supply setting of ports can realize that data card calibrates under the situation of not taking structural member apart, avoided each calibration all to want the loaded down with trivial details of disassembly and assembly structure spare, makes data card recalibration very convenient.
Description of drawings
Fig. 1 is the structured flowchart of electric power system of the present invention;
Fig. 2 is the workflow diagram of method of supplying power to one embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing is that technical scheme of the present invention is further described.
As shown in Figure 1, electric power system comprises: calibration power supply port, internal power supply system, bleeder mechanism, data card power amplifier, band processing system.Calibration power supply port be data card when calibration, external power source is given the port of data card power amplifier power supply, when data card had been installed structural member, this port can be data card earphone jack or other perforate, also can be the special hole of reserving of structural member.Internal power supply system is made up of the supply convertor that pcmcia interface and data card carry.Bleeder mechanism is the device that connects data card power amplifier and band processing system, this device is by to being applied to the voltage that external voltage on the device and internal power supply system provide and carrying out dividing potential drop, for whether data card needs standard provides a duty level value, and by band processing system described level value and more accurate datum are compared, whether need to carry out accurate with the judgment data card.Need calibration if described duty level value, then shows data card greater than the calibration reference level value, otherwise show that data card is a normal operating conditions, do not need calibration.The data card power amplifier is as the basic load of electric power system, because it is according to different calibration performance numbers when calibration, different current values will be drawn, performance number is big more, the electric current of drawing is big more, the internal power supply system that the supply convertor that relies on this moment pcmcia interface and data card to carry is formed can't satisfy its requirement to big electric current, therefore need be powered to it by external power source more on time.Band processing system is mainly used to detect the duty level value of bleeder mechanism, and carries out respective handling according to described level value.If band processing system is in align mode according to duty level value judgment data card, then band processing system will be closed the path of being powered to power amplifier by pcmcia interface and the common internal power supply system of forming of the self-powered transducer of data card, automatically the power amplifier supply access be switched to external power source.If according to duty level value judgment data card is normal operating conditions, then band processing system continues to enable supply convertor, powers to power amplifier by internal power supply system.
Fig. 2 is the workflow diagram of method of supplying power to one embodiment of the present invention.
At first, data card is inserted notebook pcmcia interface socket, power up for whole data card system.This moment, the band processing system of data card moved normally, for the mode of operation of next step data card is selected to get ready.
Secondly, the selection of data card mode of operation.Mode of operation depends on the height of data card duty level value.Under the situation of data card mounting structure spare, because general data card all has earphone jack or other opening, therefore the probe of external power source can be inserted bleeder mechanism by this hole, be that example illustrates that the resistance value of how selecting in the bleeder mechanism satisfies the requirement of system below with resistance.If two resistance are R1 and R2, the connected mode of these two resistance is series connection, what wherein band processing system obtained is the voltage at resistance R 2 two ends, the voltage of the internal power supply system of outer power voltage and data card is applied to the two ends of resistance R 1 and R2, if the voltage that the internal power supply system of data card provides is Udc, outer power voltage is Uf, because the operating voltage of power amplifier is a scope normally, therefore easy in order to design, get Uf greater than Udc, the minimum value of establishing the high level that the band processing system detection port allowed is Uhmin, and the maximal value of high level is Uhmax, low level maximal value is Ulmax, then can draw following two relational expressions:
Data card is when normal operating conditions, and the detected level value of band processing system is a low level, sets up just like lower inequality:
Data card is when align mode, and the detected level value of band processing system is a high level, sets up just like lower inequality:
If (1) the definite low level situation of formula, the internal power supply system that the data card band processing system will continue the enable data card to power to the data card power amplifier.(2) this inequality explanation of formula is when external power source is applied to bleeder mechanism, initial time, the detected high level of band processing system be the voltage of internal power supply system of data card and external power source at resistance R 2 two ends the common dividing potential drop that produces and, but this dividing potential drop and must be less than the highest tolerance value Uhmax of the detection port of data card band processing system, to prevent to burn detection port.When band processing system detects high level, the data card baseband system will turn-off the internal power supply system path of power amplifier, and this moment, power-amplification power-supply system automatically switched to the external power source mode.Except power amplifier changes by the externally fed, the internal power supply system power supply that the supply convertor that other system of data card still adopts pcmcia interface and data card to carry is formed.Data card entered calibration mode and carried out calibration operation this moment.Can establish the Standard resistance range of resistance R 1 and R2 according to (1) formula and (2) formula, just can select to have satisfied the resistance value of system requirements according to this scope.
After data card enters calibration mode, will carry out the parameter adjustment of data card work system, and, need constantly to revise to adjust parameter, up to satisfying system requirements according to the debugging requirements of one's work.After the data card calibration operation was finished, the running parameter of data card was determined.Do not needed to calibrate this moment again, the external power source probe in time need be taken out from other jacks such as data card earpiece holes, data card restored, in order to avoid influence the operate as normal of data card.
Claims (7)
1. the method for supplying power to of a data card, the method for supplying power to for data card during by pcmcia interface and electronic installation cooperating is characterized in that, comprising:
Step 1: detect the duty level value of described data card, if described duty level value is higher than the calibration reference level value, described data card is in align mode; Otherwise described data card is in normal operating conditions, is powered by internal power supply system;
Step 2: if described data card is in align mode, then give the power amplifier power supply of described data card by external power source, other system of data card still adopts the internal power supply system power supply.
2. the method for supplying power to of data card according to claim 1 is characterized in that, when described data card is in align mode, described external power source is given described data card power supply by the calibration power supply port of described data card.
3. the method for supplying power to of data card according to claim 2 is characterized in that, described calibration power supply port is the hole of special reservation behind the described data card mounting structure spare or other perforate of described data card.
4. the electric power system of a data card comprises bleeder mechanism, internal load and is connected to the internal power supply system of internal load by described bleeder mechanism that described internal load comprises band processing system and data card power amplifier; It is characterized in that, also comprise the external power source that is selectively connected thereto internal load by described bleeder mechanism; When described data card is in normal operating conditions, power by internal power supply system; When described data card was in align mode, by the power amplifier power supply that external power source is given described data card, other system of data card still adopted the internal power supply system power supply.
5. the electric power system of data card as claimed in claim 4 is characterized in that, described external power source is connected to the bleeder mechanism of described data card electric power system by the calibration power supply port of described data card when described data card is in align mode.
6. the electric power system of data card as claimed in claim 5 is characterized in that, described calibration power supply port is the hole of special reservation behind the described data card mounting structure spare or other perforate of described data card.
7. the electric power system of data card as claimed in claim 6 is characterized in that, described internal power supply system comprises the supply convertor that pcmcia interface and described data card carry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101569284A CN101192091B (en) | 2006-11-17 | 2006-11-17 | Data card powering method and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101569284A CN101192091B (en) | 2006-11-17 | 2006-11-17 | Data card powering method and system |
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| CN101192091A CN101192091A (en) | 2008-06-04 |
| CN101192091B true CN101192091B (en) | 2010-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2006101569284A Expired - Fee Related CN101192091B (en) | 2006-11-17 | 2006-11-17 | Data card powering method and system |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103312350A (en) * | 2012-03-09 | 2013-09-18 | 联想(北京)有限公司 | Power supply management method and communication device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1137831A (en) * | 1994-10-31 | 1996-12-11 | 摩托罗拉公司 | A peripheral card having independent functionality and method used therewith |
| CN1635450A (en) * | 2003-12-26 | 2005-07-06 | 技嘉科技股份有限公司 | Interface card with power supply and method for supplying back-up battery |
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2006
- 2006-11-17 CN CN2006101569284A patent/CN101192091B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1137831A (en) * | 1994-10-31 | 1996-12-11 | 摩托罗拉公司 | A peripheral card having independent functionality and method used therewith |
| CN1635450A (en) * | 2003-12-26 | 2005-07-06 | 技嘉科技股份有限公司 | Interface card with power supply and method for supplying back-up battery |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2004-297753A 2004.10.21 |
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