CN103377392B - Power supply module, method for filtering out surge current, and intelligent card - Google Patents
Power supply module, method for filtering out surge current, and intelligent card Download PDFInfo
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- CN103377392B CN103377392B CN201210112146.6A CN201210112146A CN103377392B CN 103377392 B CN103377392 B CN 103377392B CN 201210112146 A CN201210112146 A CN 201210112146A CN 103377392 B CN103377392 B CN 103377392B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
Abstract
The invention discloses a power supply module which supplies power for an intelligent card. The power supply module includes a surge filtering circuit, which can be connected with an input terminal of the power supply in a parallel manner, and which is used for filtering out surge current generated in a working circuit of the intelligent card. Filtering-out for the surge current is achieved by controlling a charge current of an energy storage module when the power of the intelligent card is turned on and by carrying out filtering through the energy storage module when a specific function application is used by the intelligent card. The invention also discloses a method for filtering out surge current and the intelligent card comprising the filtering circuit. Since surge current is filtered out by the filtering circuit, no overlarge intelligent surge current can be detected by an intelligent card manager, thus card turn-off caused by the detection of overlarge surge current is avoided, and the intelligent card is guaranteed to operate regularly.
Description
Technical field
The present invention relates to the power module of filtering circuit surge circuit, filtering method and the intelligence including the power module
Card.
Background technology
Smart card gives people life and brings great convenience.The SIM for such as using on mobile phone or MicroSD cards, they were both
There is original basic function, and with contactless communication and identity recognition function, can be used for public transport, gate inhibition and movement
The many aspects such as pay, accomplished one card for multiple uses, it is to avoid carry multiple cards.
Smart card need to meet general purpose I SO7816 consensus standard, i.e. average power consumption electric current need to be less than 50mA, and maximum surge is electric
Stream must not exceed 100mA.However, smart card is feeding power supply by smartcard manager（Go up electricity）When or start specific function
Using when, electric current can increase suddenly in circuit, surge current occur, and the surge current can easily exceed limit value.Work as intelligence
Can card manager detect surge current more than current limit value when, can mistake judgement smart card power appearance it is abnormal and strong
Row cut-out is powered to smart card, causes smart card cisco unity malfunction.
The content of the invention
The technical program technical problem underlying to be solved is to reduce smart card to answer when upper electric and into specific function
There is surge current in used time.
To solve the above problems, the technical program provides a kind of power module, including feeder ear, also including surge filtered electrical
Road, the surge filter circuit includes control module and energy storage module；The control module is connected on the feeder ear and institute
State between energy storage module, energy storage module other end ground connection, the control module be used for operating circuit just with the power supply
Control the feeder ear energy storage module charged during the series connection of end, and the energy storage module complete charge with it is described
Feeder ear is in parallel to power to the operating circuit simultaneously, and filters the surge current occurred during operating circuit chugging.
In an embodiment of the present invention, the energy storage module includes electric capacity, and the capacitance is more than 1uf.
In an embodiment of the present invention, the control module includes charge control submodule and on-off control submodule, institute
State charge control submodule to be connected between the feeder ear and the energy storage module, in the operating circuit just and institute
State when feeder ear is connected carries out current-limiting charge to the energy storage module；The on-off control submodule and the charge control submodule
Block is in parallel, and it disconnects during energy storage module charging, and closes after energy storage module charging terminates.
In an embodiment of the present invention, the on-off control submodule includes delay unit, control unit and switch element；
The switch element is in parallel with the charge control submodule, described control unit and the delay unit and the switch list
Unit's series connection, the state of the Signal-controlled switch unit for being produced according to the delay unit.
In an embodiment of the present invention, the charge control submodule includes current-limiting resistance.
In an embodiment of the present invention, the control module also includes state indication unit, and the state indication unit is used for
Indicate the energy storage module charged state.
In an embodiment of the present invention, the control module includes current source, delay capacitor, diode and transistor；Its
In, one end of the current source connection power supply side and the delay capacitor, the other end ground connection of the delay capacitor；Institute
State the ungrounded end that diode cathode connects delay capacitor, negative pole connection power supply side；The grid connection institute of the transistor
State diode cathode end；The source electrode of the transistor connects the energy storage module, grounded drain；The energy storage module also with power supply
Feeder ear connects；When the operating circuit is just connected with the feeder ear, current source charges to delay capacitor, the transistor gate
Pole tension is raised, and the transistor conduct resistance diminishes, and power supply is to energy storage module current-limiting charge, the energy storage module charging complete
Afterwards, the transistor is fully on, and the energy storage module is in parallel with the power supply side, while supplying to the operating circuit
Electricity, filters the surge current occurred during operating circuit chugging.
In an embodiment of the present invention, the control module includes current source and transistor；Wherein, the current source connection
The source electrode of the transistor and drain electrode, the grid of the transistor connects the delay unit of smartcard processor, and source electrode connection stores
Energy module, grounded drain；The energy storage module is also connected with power supply side；Electric initial stage, the current source on the smart card
Charging current of the control to energy storage module, after the energy storage module charging complete, the transistor gate receives the process
The signal of the delay unit of device, turns on transistor, and the energy storage module is in parallel with the power supply side, while to the work
Circuit is powered, and filters the surge current that circuit occurs when smartcard power is mutated.
A kind of smart card, including operating circuit, and above-mentioned power module, the operating circuit includes processor die
Block, interface module, transceiver module and functional module；Operating circuit described in the electric power source pair of module is powered.
A kind of method for filtering surge current, including：By the electric power source pair of module smart card containing surge filter circuit
Operating circuit is powered；There is surge current in operating circuit, and using the surge filter circuit surge current is filtered.
In an embodiment of the present invention, the step of should being powered by the electric power source pair of module smart card containing surge filter circuit
Including：Electricity, to energy storage module current-limiting charge is carried out on smart card；Energy storage module charging complete, the energy storage module and power supply
End is in parallel, and the operating circuit is powered jointly；There is surge current in the operating circuit, and surge filter circuit filters surge electricity
The step of stream, includes：The operating circuit power increases suddenly, when there is surge current in circuit, surge filter circuit filtering circuit
The surge current of appearance.
The beneficial effect of the technical program is：Increase surge current filter circuit in the power module of smart card, in intelligence
The charging current to energy storage module can be controlled the card upper electricity initial stage, it is to avoid surge circuit occurs in circuit；Specific work(is entered in smart card
Bypass filtering can be carried out to circuit using energy storage module during module, the surge current that filtering circuit occurs allows smart card just
Often work.
Description of the drawings
The terminal system structural representation that Fig. 1 is provided for the embodiment of the technical program one；
The structural representation of the surge filter circuit of the smart card that Fig. 2 is provided for the embodiment of the technical program one；
The structure of the control module in the surge filter circuit of the smart card that Fig. 3 is provided for the embodiment of the technical program one is shown
It is intended to；
The structure of the control module in the surge filter circuit of the smart card that Fig. 4 is provided for another embodiment of the technical program
Schematic diagram；
The structural representation of the surge filter circuit of the smart card that Fig. 5 is provided for another embodiment of the technical program；
The structural representation of the surge filter circuit of the smart card that Fig. 6 is provided for another embodiment of the technical program；
The flow chart of the method for filtering surge current that Fig. 7 a are provided for the embodiment of the technical program one；
The flow chart of the method for filtering surge current that Fig. 7 b are provided for another embodiment of the technical program；
The structural representation of the smart card that Fig. 8 is provided for the embodiment of the technical program one；
Specific embodiment
The present invention is described in more detail to combine accompanying drawing below by specific embodiment.
The present invention main inventive concept be：Increase surge filter circuit in the power module of smart card, on smart cards
When electric, the electric current for controlling to charge energy storage module by surge filter circuit, it is to avoid occur surge electricity in smart card operating circuit
Stream；When smart card enters specific function application, smart card operating circuit is parallel to energy storage module by surge filter circuit
In filter operating circuit appearance surge current so that smart card being capable of normal work.For purposes of illustration only, now defining contained hereinafter
" operating circuit " for smart card operating circuit.
Fig. 1 is refer to, Fig. 1 is managed for the terminal system that the embodiment of the technical program one is provided including smart card 0, smart card
Device and terminal body；Reset, clock in wherein described smart card 0 respectively reset corresponding with the smartcard manager and
Clock connects one to one.The smartcard manager and other modules are typically all integrated on terminal body by manufacturer terminal.
The terminal body can be mobile phone, portable computer etc..The smartcard manager is used for by the power supply external with it to intelligence
0 power supply can be blocked, and by ISO7816 interfaces（It is not shown）With the mutual data transmission of smart card 0, to be managed to smart card 0.
The smart card includes power module, described power module one end（That is feeder ear）With the power output end of smartcard manager
（The power bus powered to smart card）It is connected, other end ground connection is right via the electric current of smartcard manager for being input into
Each operating circuit is powered in smart card 0.The power module includes surge filter circuit 00, and the surge filter circuit 00 is used for
Filter the surge current produced in each operating circuit in smart card.
The electric initial stage on smart card 0, or into some specific functions application when, the power consumption of operating circuit in smart card
Increase, it may appear that the surge current more than 100mA, and in ISO7816 standards regulation, the electric current occurred more than 100mA is not
Allow, therefore, when smartcard manager detects the surge current of appearance, it is easy to which erroneous judgement is that smart card 0 power supply occurs
Abnormal and deenergization so that the cisco unity malfunction of smart card 0.Surge filter circuit 00 can be with the surge of appearance in filtering circuit
Electric current so that the electric current that smartcard manager is detected makes the intelligence not over current value specified in ISO7816 standards
Card being capable of normal work.
Fig. 2 is refer to, the surge filter circuit 00 includes control module 1 and energy storage module 2；Wherein, the control mould
One end of block 1 and power supply side（That is the power output end of smartcard manager）Connection, the other end is touched block 2 and is connected with the accumulation of energy
Connect, the other end ground connection of the energy storage module 2.The energy storage module 2 can be saved under the control of control module 1 from circuit
Energy, it is also possible to which energy is discharged in circuit.Specifically, can be controlled by control module 1 during electricity on the smart card
Charging current of the system to energy storage module 2 so that the electric current in operating circuit will not change because energy storage module 2 wants energy absorption
It is very big, so as to avoid causing excessive surge current.When smart card 0 enters certain specific application of function, the power consumption of smart card
Increase.Can be before the operating circuit of smart card 0 stably causes afterwards and into application specific functionality power consumption to increase by control module 1
Or while control energy storage module 2 it is in parallel with feeder ear, by energy storage module 2 savings energy increasing is shared together with power supply side
Plus power consumption.So, smartcard management module will not detect excessive surge current and deenergization, and smart card 0 is able to just
Often work.
The energy storage module 2 can be the larger electric capacity of Capacity Ratio, and capacity is more preferably greater than 1uf, certainly, the energy storage module
2 are not limited to as the larger electric capacity of capacity, can be that other are used for devices of storing electrical energy, to avoid entering in the smart card 0
When entering specific function application, the energy storage module 2 will be unable to provide higher power dissipation to operating circuit.But, the appearance of energy storage module 2
Amount is not limited to this.In practice, power consumption needed for operating circuit is not limited to certain numerical value or numerical intervals, therefore, can
The energy storage module 2 that can meet respective volume demand is flexibly selected as needed.
Please also refer to Fig. 2 and Fig. 3, the control module 1 can include on-off control submodule 11, charge control submodule
Block 12；The charge control submodule 12 connects the power output end of smartcard manager（That is the power supply side of smart card 0）
And the energy storage module 2, the other end ground connection of the energy storage module 2；The electric initial stage on the smart card, by the charging
12 pairs of energy storage modules 2 of control submodule carry out current-limiting charge；So, the charging current to the energy storage module 2 is limited, no
Occurring cause the electric current in operating circuit to increase sharply and surge current occur because of the access of energy storage module 2；Charge knot
After beam, charge control submodule can be disconnected by on-off control submodule 11, directly energy storage module is powered with power supply
End is in parallel.When the entered function application of smart card 0 and power consumption increase, release energy to operating circuit in the energy storage module 2, make
Smartcard manager will not detect overproof surge current.
The control module 1 also includes state indication unit 13, the connection energy storage module 2 of the state indication unit 3, to institute
State the charged state of energy storage module 2 to be indicated, indication signal can be sent in 2 charging complete of energy storage module, it is also possible to
The charge condition of the energy storage module 2 is indicated in real time.
Fig. 4 is refer to, the on-off control submodule 11 can include delay unit 111, control unit 112 and switch
Unit 113；Time delay module 111 is used for the processor module of delayed touch switch module 113 or smart card after electricity on smart card 0.
The switch element 113 is in parallel with the charge control submodule 12, described control unit 112 connection delay switch 111 and
Switch element 113；On smart card 0 during electricity, switch element 113 disconnects, by 112 pairs of storages of the charge control submodule
Energy module 2 carries out current-limiting charge, meanwhile, the delay unit 111 starts timing, the timing time root of the delay unit 111
Set according to the charging interval of the energy storage module 2, terminate when the energy storage module 2 charges, delay unit timing terminates, to control
Unit 112 sends signal, and described control unit 112 closes the switch element 113, the now charging according to the signal for receiving
Control submodule 12 is short-circuit, directly the energy storage module 2 is parallel to the power supply side and earth terminal of the smart card electricity 0
Between, because energy storage module is identical with the magnitude of voltage of input power, the unlatching of switch element 113 can't cause surge current.
When operating circuit power consumption increases, the energy storage module 2 is powered to operating circuit simultaneously with feeder ear.Due to feeder ear and accumulation of energy
Module 2 is in parallel, therefore can realize electrical power by-pass filter function, prevents smart card from surge electricity is produced under burst mode of operation
Stream, smartcard manager would not detect larger surge current.State indication unit 13 can also be set, in energy storage module
2 charging completes, time delay timing sends state instruction after terminating.
As an example, Fig. 5 is refer to, the surge filter circuit 00 that the embodiment of the technical program one is provided includes current source
14, delay capacitor 15, diode 16, transistor 17；The current source 14 connects power supply side and the delay capacitor 15
One end, the delay capacitor 15 the other end ground connection；The positive pole of the diode 16 connects the ungrounded end of delay capacitor, negative pole
Connection power supply side；The grid of the transistor 17 connects the positive terminal of diode 17；The source electrode of the transistor 17 connects
Connect the energy storage module, grounded drain；The energy storage module 2 is also connected with power supply side；The electric initial stage on the smart card 0,
The current source 14 charges to delay capacitor 15, and the grid voltage of the transistor 17 is raised, the electric conduction resistive of the transistor 17
Little, to the current-limiting charge of energy storage module 2, after the charging complete of the energy storage module 2, the transistor 17 is fully on, described for power supply
Energy storage module 2 is in parallel with feeder ear, while powering to operating circuit, filters the wave that operating circuit occurs when smartcard power is mutated
Gush electric current.Wherein, the size of the delay capacitor 15 determines that enough ideal situations are according to the charging interval of the energy storage capacitor 2
When the charging complete of the energy storage module 2, being charged by the delay capacitor 15 makes the grid voltage of the transistor 17 just can be with
Fully on transistor 17, the energy storage module 2 is in parallel with power supply side, filter circuit when smartcard power is mutated and occur
Surge current.
Fig. 6 is refer to, the surge filter circuit 00 that another embodiment of the technical program is provided includes current source 18, transistor
19；The current source 18 connects respectively the source electrode of the transistor 18 and drain electrode；The grid connection intelligence of the transistor 19
Energy Card processor delay unit, source electrode connects the energy storage module, grounded drain；The energy storage module 2 is gone back and power supply side
Connection；At the electric initial stage on the smart card 0,18 pairs of energy storage modules 2 of the current source carry out current-limiting charge, the accumulation of energy mould
After the charging complete of block 2, smartcard processor delay unit produces the gate terminal of transistor 19 described in signal controlled output, turns on institute
Transistor 19 is stated, the energy storage module 2 is in parallel with power supply side, filter the surge that circuit occurs when smartcard power is mutated
Electric current.
It is noted that the technical program provide power module can be applicable to it is any to power ripple current it is restricted
Operating circuit and device in, when using need to by after the power module and external power supply bus parallel connection simultaneously to operating circuit
Power supply.
The technical program also provides a kind of method for filtering surge current, may comprise steps of：
Powered by the electric power source pair of module operating circuit containing surge filter circuit；
There is surge current in circuit, and surge filter circuit filters surge current.
Fig. 7 a are refer to, the method for filtering surge current of the embodiment of the technical program one offer is comprised the following steps：
S1：Electricity, to energy storage module current-limiting charge is carried out on smart card；
S2：The energy storage module charging complete, the energy storage module is parallel between power supply side and ground terminal, is filtered
The surge current that circuit occurs when smartcard power is mutated；
More specifically, Fig. 7 b are refer to, Fig. 7 b filter the concrete methods of realizing flow chart of surge current for the present embodiment；
The method for filtering surge current may comprise steps of：
S701：Electricity on smart card；
S702：To energy storage module current-limiting charge；
S703：Judge energy storage module whether charging complete, S704, otherwise return to step are gone to step if charging complete
S702；
S704：Energy storage module is parallel to power supply side；
S705：Detection circuit state；
S706：Whether decision circuitry produces surge current, and if surge current is produced S707 is gone to step；Otherwise go to step
S708；
S707：Energy storage module bypass filters surge current；
S708：To each module for power supply output of smart card.Wherein, step S702 is to energy storage module current-limiting charge；And
Step S704 is parallel to circuit feeder ear energy storage module；Can be realized in the way of according to the embodiment described above 1-3.
Refer to Fig. 8, the smart card 0 that the embodiment of the technical program one is provided include interface module 01, processor module 02,
Transceiver module 04, functional module 03 and for the power module 05 of aforementioned each module for power supply.The interface module 01, process
Device module 02, transceiver module 04 and functional module 03 constitute the operating circuit of smart card.The power module 05 includes surge
Filter circuit 00；The surge current that the surge filter circuit can be produced in filtering circuit, smartcard manager will not be detected
Cause mistake to turn off the situation of the power supply of smart card 0 to excessive surge current, enable the normal work of smart card 0.
Specifically, the surge filter circuit 00, it can realize the bulky capacitor bypass filtering of smart card power supply, prevent
Only smart card produces surge current to smartcard manager, energy storage module 2 can be charged by current limliting at the upper electric initial stage,
Low current charge is realized, therefore surge current occurs when will not be electric on smart cards；After energy-accumulating element charging complete, mould is controlled
Block can be parallel to the energy storage module 2 on feeder ear i.e. power source bus, realize the electrical power by-pass filter function of bulky capacitor.
The processor module 02, for all kinds of affairs of Coordination Treatment；Wherein, all kinds of affairs can include：Often
Rule operation, such as SIM activation, information exchange, SIM managing functional module；Mobile payment SIM feature operation, such as low frequency
Near-field communication management, 2.4G mobile payment telecommunication managements, delivery operation management etc..
Generally, SIM is completed after electricity, and terminal can provide clock and reset signal to SIM（Low level）, when
After this process is kept for about 400 clock cycle, processor module 02 realizes Self-resetting；Adapting to from figure after the completion of reset
Response is carried out to terminal in the case of part（Main power source input voltage and input clock frequency to being unsatisfactory for requiring does not carry out answering
Answer）, realize the activation of itself.After completing SIM activation, the relevant information of demanding terminal reading SIM card, at this time processor
Module 02 carries out data interaction according to end command with it, and these data contents include personal recognition code, telephone customer
Information, encryption key and client's storage information etc..
Processor 02 disconnected the on-off control submodule 11 at the upper electric initial stage, and now power module is in low-power shape
State, to the upper electric initial stage surge current will not be produced；Simultaneous processor module 02 in addition to only processing traditional SIM card service, and
Other affairs are not processed, it is possible to realize the low-power consumption at electric initial stage on smart card；In addition, electric initial stage on a processor, in it
Portion's timer starts timing, and after meter is to the regular hour, i.e. the voltage of energy storage module 2 reaches input supply voltage same magnitude,
The control closure on-off control submodule 11, realizes that energy storage module 2 is in parallel with power bus, and processor module 02 now may be used
To open other specific functions of smart card.
Processor module 02 is opened and controls contactless transceiver module 04 and is constantly in listening state, when it is received and is solved
After recalling corresponding data, processor module 02 can be passed the data to, now processor module will carry out wrong school to the data
Test, the information such as key that verification is extracted in the data after passing through；Similarly, processor can also broadcast data to contactless
Transceiver module 04, by contactless channel the transmission of data is carried out；These operations of processor module are called contactless logical
Fuse tube is managed.
SIM functional module 03 is it is also assumed that be data memory module, this module stores has personal recognition code, phone
The contents such as customer information, encryption key and client's storage information.The main work of the module is exactly to process processor module 12 pairs
Its data read-write operation, such as when processor is specified to write customer information, the module can be according to certain work schedule
The data of receiving processor module are simultaneously preserved.
Above content is to combine specific embodiment further description made for the present invention, it is impossible to assert this
It is bright to be embodied as being confined to these explanations.For general technical staff of the technical field of the invention, do not taking off
On the premise of present inventive concept, some simple deduction or replace can also be made, should all be considered as belonging to the protection of the present invention
Scope.
Claims (10)
1. a kind of power module, including feeder ear, it is characterised in that also including surge filter circuit, the surge filter circuit
Including control module and energy storage module；The control module includes charge control submodule and on-off control submodule, described
Charge control submodule is connected between the feeder ear and the energy storage module, the energy storage module other end ground connection；
The charge control submodule is used to that the feeder ear to be controlled when operating circuit is just connected with the feeder ear to described
Energy storage module continues current-limiting charge；
The on-off control submodule is in parallel with the charge control submodule, and it disconnects during energy storage module charging,
And the energy storage module charge terminate after close, the energy storage module is connected in parallel with the feeder ear, while to described
Operating circuit is powered, and filters the surge current occurred during operating circuit chugging.
2. power module according to claim 1, it is characterised in that the energy storage module includes electric capacity, the electric capacity holds
Amount is more than 1uf.
3. power module according to claim 1, it is characterised in that the on-off control submodule include delay unit,
Control unit and switch element；The switch element is in parallel with the charge control submodule, described control unit with it is described
Delay unit and the switch element are connected, the shape of the Signal-controlled switch unit for being produced according to the delay unit
State.
4. power module according to claim 1, it is characterised in that the charge control submodule includes current-limiting resistance.
5. power module according to claim 1, it is characterised in that the control module also includes state indication unit,
The state indication unit is used to indicate the energy storage module charged state.
6. the power module according to any one of claim 1-3, it is characterised in that the control module includes current source, prolongs
When electric capacity, diode and transistor；Wherein, one end of the current source connection power supply side and the delay capacitor,
The other end ground connection of the delay capacitor；The diode cathode connects the ungrounded end of delay capacitor, and negative pole connection power supply is supplied
Electric end；The grid of the transistor connects the diode cathode end；The source electrode of the transistor connects the energy storage module, leakage
Pole is grounded；The energy storage module is also connected with power supply side；When the operating circuit is just connected with the feeder ear, current source
Delay capacitor is charged, the transistor gate voltage is raised, the transistor conduct resistance diminishes, power supply is limited energy storage module
Current charge, after the energy storage module charging complete, the transistor is fully on, and the energy storage module is in parallel with the feeder ear
The operating circuit is powered simultaneously.
7. the power module according to any one of claim 1-3, it is characterised in that the control module include current source with
And transistor；Wherein, the current source connects source electrode and the drain electrode of the transistor, the grid connection smart card of the transistor
The delay unit of processor, source electrode connection energy storage module, grounded drain；The energy storage module is also connected with power supply side；Institute
The electric initial stage on smart card is stated, the current source controls the charging current to energy storage module, after the energy storage module charging complete,
The transistor gate receives the signal of the delay unit of the processor, turns on transistor, the energy storage module and the confession
Electric end is in parallel to power to the operating circuit simultaneously.
8. a kind of smart card, including operating circuit, the operating circuit include processor module, interface module, transceiver module and
Functional module；Characterized in that, the smart card also includes the power module described in any one of claim 1-7, the power supply
Module is powered to the operating circuit.
9. a kind of method for filtering surge current, it is characterised in that comprise the following steps：
By the operating circuit of the electric power source pair of module smart card containing the surge filter circuit as described in any one of claim 1-7
Power supply；
There is surge current in operating circuit, and using the surge filter circuit surge current is filtered.
10. the method for filtering surge current according to claim 9, it is characterised in that described by filtering containing surge
The step of electric power source pair of module smart card of circuit is powered includes：
Electricity, to energy storage module current-limiting charge is carried out on smart card；
Energy storage module charging complete, the energy storage module is in parallel with feeder ear, the operating circuit is powered jointly；
There is surge current in the operating circuit, includes the step of surge filter circuit filters surge current：
The operating circuit power increases suddenly, when there is surge current in circuit, the wave that surge filter circuit filtering circuit occurs
Gush electric current.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210112146.6A CN103377392B (en) | 2012-04-17 | 2012-04-17 | Power supply module, method for filtering out surge current, and intelligent card |
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| CN201210112146.6A CN103377392B (en) | 2012-04-17 | 2012-04-17 | Power supply module, method for filtering out surge current, and intelligent card |
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| CN105809234A (en) * | 2014-12-31 | 2016-07-27 | 北京华大智宝电子系统有限公司 | Contact intelligent card |
| CN106026056A (en) * | 2016-05-18 | 2016-10-12 | 浙江大华技术股份有限公司 | Anti-impact circuit for power supply equipment, power supply equipment, and Ethernet power supply system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201063461Y (en) * | 2007-06-28 | 2008-05-21 | 中兴通讯股份有限公司 | Power-off alarm energy-accumulating circuit |
| CN201584768U (en) * | 2009-11-27 | 2010-09-15 | 上海永继电气有限公司 | Indicating mechanism of surge protector |
| CN201854021U (en) * | 2010-10-25 | 2011-06-01 | 深圳市中兴移动通信有限公司 | Soft starting circuit used for USB wireless modem |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101634377B1 (en) * | 2009-10-26 | 2016-06-28 | 삼성전자주식회사 | Circuit and method for generating internal voltage, and semiconductor device having same |
-
2012
- 2012-04-17 CN CN201210112146.6A patent/CN103377392B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201063461Y (en) * | 2007-06-28 | 2008-05-21 | 中兴通讯股份有限公司 | Power-off alarm energy-accumulating circuit |
| CN201584768U (en) * | 2009-11-27 | 2010-09-15 | 上海永继电气有限公司 | Indicating mechanism of surge protector |
| CN201854021U (en) * | 2010-10-25 | 2011-06-01 | 深圳市中兴移动通信有限公司 | Soft starting circuit used for USB wireless modem |
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