CN204118864U - Visible card, visible card electric power controller - Google Patents
Visible card, visible card electric power controller Download PDFInfo
- Publication number
- CN204118864U CN204118864U CN201420514897.5U CN201420514897U CN204118864U CN 204118864 U CN204118864 U CN 204118864U CN 201420514897 U CN201420514897 U CN 201420514897U CN 204118864 U CN204118864 U CN 204118864U
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- 238000010586 diagram Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model relates to a kind of visible card, visible card electric power controller.Described visible card comprises double-interface card chip, display chip, coil and battery, the electric energy that described coil produces sends to described double-interface card chip, described visible card electric power controller comprises: power supply output pin, be arranged in described double-interface card chip, for exporting electric energy under the control of described double-interface card chip; Electric power management circuit, for the electric power thus supplied according to described power supply output pin, selects described power supply output pin or described battery to be that described display chip is powered.While the utility model can be implemented in and ensures that double-interface card chip normally works, dynamically for display chip distributes electric energy.
Description
Technical field
The utility model relates to field of intelligent cards, particularly relates to a kind of visible card, visible card electric power controller.
Background technology
In Unionpay company standard Q/CUP 047.8-2013, propose visible card specification, code requirement visible card is double-interface card, has Presentation Function, can have internal battery.As shown in Figure 1, be the functional schematic of visible card in prior art, visible card comprises two modules: double-interface card module and display module.Inner structure is as follows: as shown in Figure 2, be the physical structure schematic diagram of visible card inside, wherein, is connected between double-interface card chip and display chip by interface standard.
The supply power mode of visible card is as follows: as shown in Figure 3, for the circuit diagram of visible card inside in prior art, in non-contact application, mobile phone or card reader send carrier wave, such as: the carrier wave of 13.56MHz, the double-interface card chip of visible card inside obtains electric energy by coil from carrier wave, carries out work; Display chip uses powered battery.In this technical scheme, display chip can only use battery, if running down of battery, then the Presentation Function of visible card cannot use completely.In addition, if there is no mobile phone or card reader, the while that display chip making battery-powered, if desired double-interface card chip work, then double-interface card chip also can only use powered battery, and now, display chip controls double-interface card chip by internal circuit and obtain electric energy from battery.In this case, the function of display chip and double-interface card chip all will be subject to the impact of battery electric quantity.
As shown in Figure 4, for the another kind of circuit diagram of visible card inside in prior art, this circuit comprises two coils, and coil 1 is for power supply, and coil 2 is for communication and power supply, and add a rectification circuit, the electric energy obtained from coil 1 is directly supplied display chip by rectification circuit, and therefore, display chip can obtain electric energy from battery, also directly electric energy can be obtained from coil 1, and not by the impact of double-interface card chip.If but display chip directly obtains electric energy from coil 1 carries out work, the electricity shortage of double-interface card chip can be caused, this is because in arbitrary electromagnetic field, any position, visible card is fixing from the electric energy that coil obtains, if display chip directly obtains electric energy from coil 1, then double-interface card chip can electric energy just have to reduce, so such occupation mode often has a strong impact on the normal work of double-interface card chip.
Utility model content
The utility model provides a kind of visible card, visible card electric power controller, in order to realize while guarantee double-interface card chip normally works, dynamically for display chip distributes electric energy.
The utility model provides a kind of visible card electric power controller, and described visible card comprises double-interface card chip, display chip, coil and battery, and the electric energy that described coil produces sends to described double-interface card chip, and described device comprises:
Power supply output pin, is arranged in described double-interface card chip, for exporting electric energy under the control of described double-interface card chip;
Electric power management circuit, for the electric power thus supplied according to described power supply output pin, selects described power supply output pin or described battery to be that described display chip is powered.
The utility model also provides a kind of visible card, comprises display chip, double-interface card chip, coil and battery, also comprises aforesaid visible card electric power controller.
The utility model adopts double-interface card chip to control power supply output pin and exports electric energy, ensures that double-interface card chip obtains sufficient electric energy; Meanwhile, electric power management circuit, by judging that the voltage of power supply output pin selects power supply output pin or battery to power to display chip, makes display chip cannot can not use because of running down of battery, also can not cause double-interface card chip electricity shortage.Therefore, achieve the electric energy that dynamic assignment double-interface card chip and display chip are required separately, and then realize the normal use of visible card various functions.
Accompanying drawing explanation
Fig. 1 is the functional schematic of visible card in prior art;
Fig. 2 is the physical structure schematic diagram of visible card inside;
Fig. 3 is the circuit diagram of visible card inside in prior art;
Fig. 4 is the another kind of circuit diagram of visible card inside in prior art;
Fig. 5 is the structural representation of the utility model visible card electric power controller embodiment;
Fig. 6 is the schematic flow sheet of the utility model visible card method for managing power supply embodiment.
Embodiment
Below in conjunction with specification drawings and specific embodiments, the utility model will be further described.
As shown in Figure 5, for the structural representation of the utility model visible card electric power controller embodiment, this device comprises: coil 51, double-interface card chip 52, power supply output pin 53, electric power management circuit 54, battery 55, display chip 56, double-interface card chip 52 is connected with coil 52, power supply output pin 53 is arranged in double-interface card chip 52, electric power management circuit 54 is connected with power supply output pin 53, battery 55 is connected with electric power management circuit 54, and display chip 56 is connected with electric power management circuit 54.
In the present embodiment, the electric energy that coil 51 produces sends to double-interface card chip 52; Power supply output pin 53 for exporting electric energy under the control of double-interface card chip 52; Electric power management circuit 54, for the electric power thus supplied according to power supply output pin 53, selects power supply output pin 53 or battery 55 to power for display chip 56.
The specific works process of the present embodiment is as follows: as shown in Figure 6, is the schematic flow sheet of the utility model visible card method for managing power supply embodiment, specifically can comprises the steps:
The electric energy that step 61, coil 51 produce sends to two interface chip 52;
Step 62, double-interface card chip 52 control power supply output pin 53 and export electric energy;
Step 63, electric power management circuit 54, according to the electric power thus supplied of power supply output pin 53, select power supply output pin 53 or battery 55 to power for display chip 56.
In the present embodiment, coil 51 produces electric energy and sends to double-interface card chip 52, double-interface card chip 52 controls the electric energy that power supply output pin 53 exports, like this, the electric energy that coil 51 produces preferentially supplies double-interface card chip 52, unnecessary electric energy is exported by power supply output pin 53 and goes, avoid display chip 56 directly causes the situation of double-interface card chip 52 electricity shortage to occur after coil 51 obtains electric energy, therefore, no longer occur that in visible card, display chip 56 and double-interface card chip 52 fight for the situation of electric energy, ensure that the normal work of double-interface card chip 52.Electric power management circuit 54 selects one of them to be that display chip 56 is powered according to power supply output pin 53 and the respective electric power thus supplied of battery 55, avoids the situation that display chip 56 uses battery 55, achieves and dynamically distribute electric energy for display chip 56.
Alternatively, in the present embodiment, electric power management circuit 54, for the voltage of power supply output pin 53 or electric current and the first predetermined threshold being compared, selects power supply output pin 53 or battery 55 to power for display chip 56 according to comparative result.Such as: when the voltage of power supply output pin 53 or electric current are greater than the first predetermined threshold, electric power management circuit 54 can select power supply output pin 53 to power for display chip 56; When the voltage of power supply output pin 53 or electric current are less than or equal to the first predetermined threshold, electric power management circuit 54 can select battery 55 to power for display chip 56.
Alternatively, in the present embodiment, double-interface card chip 52 according to the conditions of demand of double-interface card chip 52 pairs of electric energy, can control the electric energy that power supply output pin 53 exports.When the electric energy of double-interface card chip 52 self-demand is larger, the electric energy that power supply output pin 53 exports can be reduced; When the electric energy of double-interface card chip 52 self-demand is less, the electric energy that power supply output pin 53 exports can be increased.Such as: when double-interface card chip 52 needs high-current consumption, the electric current that power supply output pin 53 exports can be reduced; When double-interface card chip 52 does not need high-current consumption, the electric current that power supply output pin 53 exports can be increased.
Alternatively, in the present embodiment, battery 55 can be rechargeable battery, and electric power management circuit 54 can also according to the electric power thus supplied of power supply output pin 53, for battery 55 charges, to make full use of the electric energy that coil produces.Such as: the voltage of power supply output pin 53 or electric current and the second predetermined threshold compare by electric power management circuit 54, determine whether to be charged for battery 55 by power supply output pin 53 according to comparative result, when the voltage of power supply output pin 53 or electric current fully high, such as: when being greater than the second predetermined threshold, electric power management circuit 54 is determined to be charged for battery 55 by power supply output pin 53.
The utility model also provides a kind of embodiment of visible card, this visible card can comprise double-interface card chip 52, display chip 56, coil 51 and battery 55, the power supply output pin 53 in above-mentioned visible card electric power controller embodiment and electric power management circuit 54 can also be comprised, do not repeat them here.
Last it is noted that above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not depart from the spirit and scope of technical solutions of the utility model.
Claims (6)
1. a visible card electric power controller, is characterized in that, described visible card comprises double-interface card chip, display chip, coil and battery, and the electric energy that described coil produces sends to described double-interface card chip, and described device comprises:
Power supply output pin, is arranged in described double-interface card chip, for exporting electric energy under the control of described double-interface card chip;
Electric power management circuit, for the electric power thus supplied according to described power supply output pin, selects described power supply output pin or described battery to be that described display chip is powered.
2. device according to claim 1, it is characterized in that, described electric power management circuit is used for the voltage of described power supply output pin or electric current and the first predetermined threshold to compare, and selects described power supply output pin or described battery to be that described display chip is powered according to comparative result.
3. device according to claim 1, is characterized in that, described double-interface card chip, according to the conditions of demand of described double-interface card chip to electric energy, controls the electric energy that described power supply output pin exports.
4. device according to claim 1, is characterized in that, described battery is rechargeable battery, described electric power management circuit also for the electric power thus supplied according to described power supply output pin, for described battery charges.
5. device according to claim 4, it is characterized in that, according to comparative result, described electric power management circuit, also for the voltage of described power supply output pin or electric current and the second predetermined threshold being compared, determines whether that by described power supply output pin be the charging of described battery.
6. a visible card, comprises display chip, double-interface card chip, coil and battery, it is characterized in that, also comprises the arbitrary described visible card electric power controller of claim 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420514897.5U CN204118864U (en) | 2014-09-09 | 2014-09-09 | Visible card, visible card electric power controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420514897.5U CN204118864U (en) | 2014-09-09 | 2014-09-09 | Visible card, visible card electric power controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204118864U true CN204118864U (en) | 2015-01-21 |
Family
ID=52336144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420514897.5U Expired - Lifetime CN204118864U (en) | 2014-09-09 | 2014-09-09 | Visible card, visible card electric power controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204118864U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104218690A (en) * | 2014-09-09 | 2014-12-17 | 昆腾微电子股份有限公司 | Visual card power management device and method |
-
2014
- 2014-09-09 CN CN201420514897.5U patent/CN204118864U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104218690A (en) * | 2014-09-09 | 2014-12-17 | 昆腾微电子股份有限公司 | Visual card power management device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150121 |