CN207302113U - Chargeable smart card charging system, smart card and card reader - Google Patents
Chargeable smart card charging system, smart card and card reader Download PDFInfo
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- CN207302113U CN207302113U CN201721008906.3U CN201721008906U CN207302113U CN 207302113 U CN207302113 U CN 207302113U CN 201721008906 U CN201721008906 U CN 201721008906U CN 207302113 U CN207302113 U CN 207302113U
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- smart card
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Abstract
A kind of chargeable smart card charging system, including smart card and with the matched card reader of the smart card；The smart card includes the first controller, charging circuit and battery, and the charging circuit is connected between the battery and the C6 pins of the smart card；The card reader includes second controller and power control circuit, the power control circuit and the C6 contact portions on the second controller and the card reader；Wherein, when the card reader detects the smart card, the power control circuit exports charge power supply to the C6 pins of the smart card to charge to the battery from the C6 contacts of the card reader.Card reader in above-mentioned chargeable smart card charging system is charged by its C6 contact to chargeable smart card, is neither influenced card reader and is carried out Card Reader operation, while can charge again to chargeable smart card.
Description
Technical field
The utility model belongs to IC card system technical field, more particularly to chargeable smart card charging system, smart card and
Card reader.
Background technology
Smart card：Microelectronic chip insertion is met in the card base of 7816 standards of ISO, makes card form.Wherein, please
Refering to Fig. 1, meeting the smart card module of 7816 standards of ISO has 8 contacts, and contact (pin) and its effect are respectively C1：Electricity
Source voltage (VCC)；C2：Reset signal (RST)；C3：Clock signal (CLK)；C5：Ground (GND)；C6：Program voltage (VPP)；C7：
Data input/output (IO)；C4 and C8 is the DM/DP pins that USB smart cards are reserved；Wherein C1, C2, C3, C5, C7 are intelligence
Card module is carried out with card reader necessary to contact communication.
Communication modes between smart card and card reader can be contact or contactless.Relative to only having
There is traditional IC card of contact or non-connection function, possess other functions such as functions such as button, display screen, OTP, bluetooth, sound waves
Smart card has gradually appeared.These smart cards are required for battery to come to integrated circuit, and battery needs to charge after exhausting.
Standard IC card card reader does not have the function to chargeable smart card trickle charge, and chargeable smart card does not have standard at present yet
Charging equipment.
After smart card insertion Standard contact card reader, the VCC pin meeting output voltage of card reader carries out card seeking operation, card seeking
Voltage is from 3V to 5V again to 1.8V.Most of cards support 3V power supplies, and card reader will disconnect after upper layer software (applications) 10 seconds is without operation
Power supply is powered, therefore infeasible to smart card charging using the VCC pin of standard card reader.
Part card reader is charged by using reserved C4/C8 contacts to smart card.Which occupies USB smart cards
DM/DP interfaces, will be unable to use for the smart card of USB interface.
Utility model content
The purpose of this utility model is to provide a kind of chargeable smart card charging system, smart card and card reader, it is intended to
Solve standard IC card card reader present in traditional technical solution do not have to the function of chargeable smart card trickle charge,
Chargeable smart card at present also without the charging equipment of standard the problem of.
A kind of chargeable smart card charging system, including smart card and with the matched card reader of the smart card；
Wherein, the smart card includes the first controller, charging circuit and battery, and the charging circuit is connected to the electricity
Between pond and the C6 pins of the smart card；
Wherein, the card reader includes second controller and power control circuit, the power control circuit and described the
C6 contact portions on two controllers and the card reader；
Wherein, when the card reader detects the smart card, C6 of the power control circuit from the card reader
Contact exports charge power supply to the C6 pins of the smart card to charge to the battery.
Preferably, the charging circuit has diode, and the anode of the diode connects the C6 pins of the smart card, cloudy
Pole connects the cathode of the battery.
Preferably, the power control circuit is LDO circuit, DC-DC circuit or power switch pipe.
Preferably, the card reader includes the battery being connected with the power control circuit.
Preferably, the card reader further includes analog switch, the analog switch be used to selecting first controller with
The passage that the second controller is connected；Wherein, the card reader further includes C4/C8 contacts, and the C4/C8 contacts are used to access
Detect whether the smart card is the chargeable smart card that meets the card reader rechargeable standard from the second controller
Detect signal.
In addition, additionally providing a kind of card reader, there is smart card deck and the hard contact on the deck, also wrap
Include controller and power control circuit.The power control circuit connects with the C6 contacts on the controller and the card reader
Connect；When the card reader has detected matched smart card, the power control circuit exports charging electricity from the C6 contacts
Source to the smart card C6 pins with give the battery of the smart card charge.
Preferably, the power control circuit is LDO circuit, DC-DC circuit or power switch pipe.
Preferably, the card reader includes the battery being connected with the power control circuit.
Preferably, the card reader further includes analog switch, and the analog switch is used to select card reader C4/C8 contacts
The passage connected with the controller；Wherein described C4/C8 contacts are used to access detects the smart card from the controller
Whether be the chargeable smart card for meeting the card reader rechargeable standard detection signal.
In addition, additionally providing a kind of smart card, grafting can be coordinated with a card reader, the smart card includes controller, fills
Circuit and battery, the charging circuit are connected between the battery and the C6 pins of the smart card；The smart card
C6 pins are used to access the charge power supply to charge to the battery of the smart card；
The card reader includes controller and power control circuit, the power control circuit and the controller and described
C6 contact portions in card reader；
Wherein, when the card reader detects the smart card, C6 of the power control circuit from the card reader
Contact exports charge power supply to the C6 pins of the smart card to charge to the battery.
Card reader in above-mentioned chargeable smart card charging system is charged by its C6 contact to chargeable smart card,
Neither influence card reader and carry out Card Reader operation, while can charge again to chargeable smart card.
Brief description of the drawings
Fig. 1 is the pin distribution map of intelligent card chip；
Fig. 2 is the deck contact distribution map of card reader；
Fig. 3 is the chargeable smart card charging system structure diagram that the utility model first embodiment provides；
Fig. 4 is the chargeable smart card charging system structure diagram that the utility model second embodiment provides；
Fig. 5 is the circuit diagram of analog switch in the utility model preferred embodiment；
Fig. 6 is the circuit diagram of power control circuit in one embodiment of the utility model.
Embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, is further elaborated the utility model.It should be appreciated that specific embodiment described herein is only explaining
The utility model, is not used to limit the utility model.
Please refer to Fig.1 to Fig.3, chargeable smart card charging system includes smart card in the utility model preferred embodiment
10 and card reader matched with smart card 10 20, card reader 20 there is smart card deck (not shown) and the metal on deck
Contact (refers to Fig. 2), and structural representation, pin and its effect of smart card 10 are as shown in Figure 1.
Wherein, smart card 10 includes the first controller MCU1, charging circuit 11 and battery 12, and charging circuit 11 is connected to electricity
Between pond 12 and the C6 pins of smart card 10；Card reader 20 includes second controller MCU2 and power control circuit 21, power supply control
Circuit 21 processed and the C6 contact portions on second controller MCU2 and card reader 20；Wherein, when card reader 20 detects smart card
When 10, power control circuit 21 exports charge power supply to the C6 pins of smart card 10 with to battery from the C6 contacts of card reader 20
12 chargings.This programme is not take up USB passages, can also be in smart card 10 while the battery 12 of smart card 10 can be given to charge
Upper read-write data.
The contact of the deck used in card reader 20 also additionally possesses two in addition to 8 contacts of intelligent card corresponding 10
C9, C10 contact, the two contacts act as whether detection card is inserted in place.General usage is C9 contact portions to reading
On the I/O pin of 20 chip (second controller MCU2) of card device, IO is arranged to band pull-up input；C10 contacts connect GND pin.When
Card be inserted into card reader 20 and with deck contact in place after, smart card 10 itself, which can be pressed onto C9 contacts, makes it touch downwards
C10 contacts；Judge card after the I/O pin of 20 chip (second controller MCU2) of card reader connection C9 contacts detects low level
It is inserted in place, card reader 20 can just be powered on to card at this time, and carry out the operation such as card seeking and cartoon letters.
After card reader 20 detects that card is inserted in place signal, C6 contacts output charge power supply carries out smart card 10
Charging.Out-put supply can be 5V or other voltages that can be charged to battery 12, and 5V voltages can be by the USB of card reader 20
VCC on interface is provided or provided by single input power.When card reader 20 is using USB interface connection computer (PC),
Computer can be communicated by upper computer software with card reader 20, and operation is written and read to smart card 10, while pair can be filled
Battery 12 charges.Power control circuit 21 in card reader 20 is LDO (low pressure difference linearity voltage stabilizing) circuit, DC-DC is (straight
Flow voltage stabilizing) circuit or power switch pipe., it is necessary to utilize when battery inside using card reader 20 for battery in card 12 to charge
Booster circuit boosts cell output voltage, and voltage can rise to the input voltage range that 5V or other charging circuits 11 allow
It is interior.
Correspondingly, C6 pins are connected to the input pin of charging circuit 11 in card on the smart card 10.When card reader 20
C6 contacts out-put supply after, can be charged by charging circuit 11 to the battery 12 in smart card 10.Charging circuit 11 also may be used
To be placed in card reader 20, the number of devices in smart card 10 can be so reduced, is reserved more for the placement of other devices
Space.Charging circuit 11 in smart card 10 can increase a diode, prevent the interior battery 12 of card from shorted to earth occur
Phenomenon.Diode anode connects card C6 pins, and cathode connects the cathode of battery 12.
In further embodiment, referring to Fig. 4, on the basis of above-mentioned chargeable smart card charging system, work as reading
After card device 20 detects smart card 10, C6 contacts out-put supply is not given immediately, but first judges whether be inserted into card is symbol
Close the chargeable smart card of the rechargeable standard.Corresponding chargeable smart card in this way, then C6 contacts out-put supply, otherwise C6 contacts
Not out-put supply.
Since the C4/C8 pins of smart card 10 are defined as USB interface, so the multiplexing for C4/C8 pins is divided into two kinds
Situation：
A) smart card 10 has the function of USB.In this case, can by 20 inside second controller MCU2 of card reader with
USB module in smart card 10 communicates, and learns whether smart card 10 supports C6 pin charge functions.Second controller
The data for acting as receiving PC ends software and issuing of MCU2 simultaneously pass to smart card 10, while the data that smart card 10 is uploaded turn
Issue PC ends software.Card reader 20 is after smart card 10 is detected, in the free time section that PC communicates with smart card 10, by second
Controller MCU2 sends " smart card 10 confirms " signal., will be in C6 contacts after the correct response message of smart card 10 is received
Export charge power supply.
B) smart card 10 does not have USB functions.In this case, can by the second controller MCU2 in card reader 20 with
The first controller MCU1 inside smart card 10 communicates, and using C4/C8 contacts, communication protocol can be USB, I2C, UART
Or other customized communication protocols.The first controller MCU1 inside smart card 10 may not have USB functions, Ke Yixuan
Select using fairly simple communication protocol such as I2C or UART.
Refering to Fig. 4, for both the above situation, on hardware can using analog switch 22 come control switching USB passages and
I2C/UART passages.Analog switch 22 selects the first controller MCU1 of smart card 10 and the second controller of card reader 20
The passage that MCU2 is connected, wherein C4/C8 contacts are used to access from whether second controller MCU2 detection smart cards 10 are to meet
The detection signal of the chargeable smart card of 20 rechargeable standard of card reader.Judge whether smart card 10 props up by being multiplexed C4/C8 contacts
Corresponding rechargeable standard is held, can just electricity be exported to C6 pins only when smart card 10 meets the rechargeable standard of card reader 20 in itself
Source.
Refer to Fig. 4 and Fig. 5, the C4/C8 pins on smart card 10 are connected to the first controller MCU1's of smart card 10
On USB interface or other I/O ports.Analog switch 22 includes first switch unit U1 and second switch unit U2, wherein：First opens
The pin A for closing unit U1 connects the C4 contacts of card reader 20, and the pin B0 of first switch unit U1 meets the USB of second controller MCU2
Interface pin USB_DM, pin B1 meet the I2C interface I2C_SCL or UART interface UART_TX of second controller MCU2；Second
The pin A of switch element U2 connects the C8 contacts of card reader 20, and the pin B0 of second switch unit U2 connects second controller MCU2's
USB interface pin USB_DP, pin B1 connect the I2C interface I2C_SDA or UART interface UART_RX of second controller MCU2, mould
The CONTROL pins for intending switch 22 are the controlling switch of the second controller MCU2 of card reader 20, and low electricity is exported under default situations
Flat, guarantee passage is USB passages.
After card reader 20 detects that card insertion enters signal, second controller MCU2 carries out USB polling operations by passage.When one
When can't detect USB device in the section time, CONTROL is set to output high level by card reader 20, and passes through I2C or UART and intelligence
10 can be blocked to communicate.If card reader 20 is by USB or I2C/UART and 10 normal communication of smart card and receives card and correctly returns
Should, represent that the smart card 10 supports C6 pin charging modes, card reader 20 opens the out-put supply of C6 contacts again at this time.
Power control circuit 21 can be realized by LDO circuit, DC-DC circuit or metal-oxide-semiconductor circuit etc..Fig. 6 show N+
The power control circuit 21 that P-MOS pipes are realized, VCC_IN are the input power of power control circuit 21, and VCC_OUT is power supply control
The out-put supply of circuit 21 processed, is connected to C6 contacts.POWER_CONTROL is power control pin, when pin output is low
During level, VCC_OUT Non voltage outputs；When POWER_CONTROL is high level, VCC_OUT has voltage output.
In addition, please referring to Fig.1 to 4, a kind of card reader 20 is additionally provided, there is smart card deck and the gold on deck
Belong to contact, further include second controller MCU2 and power control circuit 21, power control circuit 21 and second controller MCU2 and
C6 contact portions in card reader 20.When card reader 20 has detected matched smart card 10, power control circuit 21 is from C6
The C6 pins of contact output charge power supply to smart card 10 are charged with the battery 12 to smart card 10.
Preferably, power control circuit 21 is LDO circuit, DC-DC circuit or power switch pipe.
Preferably, card reader 20 includes the battery being connected with power control circuit 21.
Preferably, the card reader 20 further includes analog switch 22, and analog switch 22 is used to select the first of smart card 10
The passage that controller MCU1 and the second controller MCU2 of card reader 20 are connected；Wherein C4/C8 contacts are used to access from described
Second controller MCU2 detection smart card 10 whether be the chargeable smart card for meeting 20 rechargeable standard of card reader detection signal.
In addition, additionally providing a kind of smart card 10, smart card 10 includes the first controller MCU1, charging circuit 11 and battery
12, charging circuit 11 is connected between battery 12 and the C6 pins of smart card 10；The C6 pins of smart card 10 are used to access to intelligence
The charge power supply that 10 battery 12 charges can be blocked.
Preferably, smart card 10 is also equipped with OTP circuits, Bluetooth circuit, sound wave circuit, display circuit and key circuit etc..
Above-mentioned chargeable smart card charging system includes the smart card 10 with rechargeable battery 12, and can be to intelligence
The card reader 20 of 10 chargings can be blocked.Card reader 20 uses C6 contacts to make as the power supply output charged to battery 12, smart card 10
By the use of C6 pins as the charging input pin of battery 12, neither influence card reader 20 and carry out Card Reader operation, while be able to can be filled again
Electric smart card 10 charges.
Card reader 20 is the power supply of the charging of smart card 10 except using USB interface, can also pass through power supply adaptor or electricity
Pond obtains, and during using 20 internal cell of card reader to charge for the battery 12 in smart card 10, card reader 20 needs built-in boosting electricity
Road.
Card reader 20 judges whether smart card 10 supports the charging modes by being multiplexed C4/C8 contacts.When smart card 10
With USB passages, the second controller MCU2 of card reader 20 is led to by USB interface and the first controller MCU1 in smart card
Letter；When smart card 10 does not have a USB passages, the second controller MCU2 of card reader 20 is by I2C/UART or other are self-defined
Interface communicate with the first controller MCU1 in smart card 10, and judge whether card supports C6 pin charge functions.It is logical
The function can be realized by crossing analog switch 22 or other similar circuits.
Output control to charge power supply is realized by the second controller MCU2 in card reader 20, only when smart card 10
Charge power supply just is exported to smart card 10 when meeting 20 corresponding rechargeable standard of card reader.
The only preferred embodiment for the utility model above, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (10)
- A kind of 1. chargeable smart card charging system, it is characterised in that including smart card and with the matched Card Reader of the smart card Device；Wherein, the smart card includes the first controller, charging circuit and battery, the charging circuit be connected to the battery and Between the C6 pins of the smart card；Wherein, the card reader includes second controller and power control circuit, the power control circuit and the described second control C6 contact portions on device processed and the card reader；Wherein, when the card reader detects the smart card, the power control circuit is from the C6 contacts of the card reader Charge power supply is exported to the C6 pins of the smart card to charge to the battery.
- 2. chargeable smart card charging system as claimed in claim 1, it is characterised in that the charging circuit has two poles Pipe, the anode of the diode connect the C6 pins of the smart card, and cathode connects the cathode of the battery.
- 3. chargeable smart card charging system as claimed in claim 1, it is characterised in that the power control circuit is LDO Circuit, DC-DC circuit or power switch pipe.
- 4. chargeable smart card charging system as claimed in claim 1, it is characterised in that the card reader includes and the electricity The battery of source control circuit connection.
- 5. chargeable smart card charging system as claimed in claim 1, it is characterised in that the card reader further includes simulation and opens Close, the analog switch is used for the passage for selecting first controller to be connected with the second controller；Wherein, the Card Reader Device further includes C4/C8 contacts, the C4/C8 contacts be used to accessing from the second controller detect the smart card whether be Meet the detection signal of the chargeable smart card of the card reader rechargeable standard.
- 6. a kind of card reader, has smart card deck and the hard contact on the deck, it is characterised in that further include control Device and power control circuit processed, the power control circuit and the C6 contact portions on the controller and the card reader；When When the card reader has detected matched smart card, the power control circuit exports charge power supply to institute from the C6 contacts The C6 pins of smart card are stated to charge to the battery of the smart card.
- 7. card reader as claimed in claim 6, it is characterised in that the power control circuit is LDO circuit, DC-DC circuit Or power switch pipe.
- 8. card reader as claimed in claim 6, it is characterised in that the card reader includes being connected with the power control circuit Battery.
- 9. card reader as claimed in claim 6, it is characterised in that the card reader further includes analog switch, and the simulation is opened Close the passage for being used for selecting card reader C4/C8 contacts to be connected with the controller；Wherein described C4/C8 contacts come from for access The controller detect the smart card whether be the chargeable smart card for meeting the card reader rechargeable standard detection signal.
- 10. a kind of smart card, can coordinate grafting with a card reader, it is characterised in that the smart card includes controller, charging electricity Road and battery, the charging circuit are connected between the battery and the C6 pins of the smart card；The C6 of the smart card draws Foot is used to access the charge power supply to charge to the battery of the smart card；The card reader includes controller and power control circuit, the power control circuit and the controller and the Card Reader C6 contact portions on device；Wherein, when the card reader detects the smart card, the power control circuit is from the C6 contacts of the card reader Charge power supply is exported to the C6 pins of the smart card to charge to the battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721008906.3U CN207302113U (en) | 2017-08-11 | 2017-08-11 | Chargeable smart card charging system, smart card and card reader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721008906.3U CN207302113U (en) | 2017-08-11 | 2017-08-11 | Chargeable smart card charging system, smart card and card reader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207302113U true CN207302113U (en) | 2018-05-01 |
Family
ID=62443771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721008906.3U Active CN207302113U (en) | 2017-08-11 | 2017-08-11 | Chargeable smart card charging system, smart card and card reader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207302113U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3624075A1 (en) * | 2018-08-31 | 2020-03-18 | Capital One Services, LLC | Battery charger for a transaction card |
-
2017
- 2017-08-11 CN CN201721008906.3U patent/CN207302113U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3624075A1 (en) * | 2018-08-31 | 2020-03-18 | Capital One Services, LLC | Battery charger for a transaction card |
| US11106959B2 (en) | 2018-08-31 | 2021-08-31 | Capital One Services, Llc | Battery charger for a transaction card |
| US11580343B2 (en) | 2018-08-31 | 2023-02-14 | Capital One Services, Llc | Battery charger for a transaction card |
| US12008424B2 (en) | 2018-08-31 | 2024-06-11 | Capital One Services, Llc | Battery charger for a transaction card |
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