CN206340120U - A kind of exported based on POS double antenna connects application circuit with the non-of reception - Google Patents
A kind of exported based on POS double antenna connects application circuit with the non-of reception Download PDFInfo
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- CN206340120U CN206340120U CN201621421713.6U CN201621421713U CN206340120U CN 206340120 U CN206340120 U CN 206340120U CN 201621421713 U CN201621421713 U CN 201621421713U CN 206340120 U CN206340120 U CN 206340120U
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Abstract
The utility model provide it is a kind of based on POS double antenna export with receive it is non-connects application circuit, it includes two groups and non-connects tuber function circuit；Each group non-to connect tuber function circuit：The receiving terminal of NFC IC circuits respectively with first resistor one end, second resistance one end；The first resistor other end is connected with 3rd resistor one end；The second resistance other end is connected with first inductance one end, first electric capacity one end, second electric capacity one end respectively；The first inductance other end is connected with the transmitting terminal of NFC IC circuits；The second electric capacity other end is connected with the 3rd electric capacity one end, the 4th electric capacity one end, 3rd resistor one end respectively；The 3rd resistor other end is connected with connecting line one end, non-wiring circle one end respectively；The first electric capacity other end, the 3rd electric capacity other end, the 4th electric capacity other end, the connecting line other end, the non-wiring circle other end are grounded；The controllable end of non-wiring circle is connected with a controller.The utility model sensitivity is high, low cost.
Description
Technical field
The utility model is related to a kind of exported based on POS double antenna and connects application circuit with the non-of reception.
Background technology
Wireless POS machine in the market is generally adopted by built-in aerial design to realize the reception of wireless signal,
Traditional POS one is non-to connect the non-wiring circle of chip controls one.Independent display screen, function of swiping card area are needed on this POS tool
Equipment will also have non-connect region of swiping the card in itself simultaneously in domain.Therefore cause this POS that there is larger volume.
The content of the invention
The purpose of this utility model is to provide a kind of exported based on POS double antenna and connects application circuit with the non-of reception.
The utility model uses following technical scheme：A kind of exported based on POS double antenna scoops out electricity consumption with the non-of reception
Road, it is characterised in that：Non- tuber function circuit is connect including two groups；This is non-connect tuber function circuit including first to 3rd resistor,
First inductance, first to fourth electric capacity, connecting line and non-wiring circle；First resistor one end is connected with second resistance one end；First
The resistance other end is connected with 3rd resistor one end；The second resistance other end respectively with first inductance one end, the first electric capacity one
End, the connection of second electric capacity one end；The first inductance other end is connected with the transmitting terminal of NFC IC circuits；The second electric capacity other end is distinguished
It is connected with the 3rd electric capacity one end, the 4th electric capacity one end, 3rd resistor one end；The 3rd resistor other end respectively with connecting line one end,
Non- wiring circle one end connection；It is the first electric capacity other end, the 3rd electric capacity other end, the 4th electric capacity other end, the connecting line other end, non-
The wiring circle other end is grounded；The controllable end of non-wiring circle is connected with a controller.
Further, the connecting line is 50R coaxial cables or twisted-pair feeder.
Further, the receiving terminal of the NFC IC circuits is connected with first resistor one end or connected with 3rd resistor one end
Connect.
Circuit of the present utility model improves advantage for needing independent display screen function of swiping card same on some client's POSs tool
When equipment also to have in itself it is non-connect region of swiping the card, the utility model can drive two NFC lines simultaneously only with a NFC IC
Circle, is very helpful to the human oriented design tool with non-connection function product.With advantages below：
1. consider to reduce by one group of non-connection module to reduce production cost from design cost；
2. add client's usage experience.
3. each independent antenna modules receiving terminal returns to one group of selectable tuning manner of increase, reception can be so reduced
The debugging difficulty of sensitivity.
Brief description of the drawings
Fig. 1 is the circuit theory diagrams of prior art.
Fig. 2 is the circuit theory diagrams of the embodiment of the utility model one.
Embodiment
Explanation is further explained to the utility model with specific embodiment below in conjunction with the accompanying drawings.
Referring to Fig. 2, the utility model is provided a kind of exported based on POS double antenna and connects application circuit with the non-of reception, its
Non- harmony functional circuit is connect including two groups；This is non-connect harmony functional circuit including first to 3rd resistor, the first inductance, first to
4th electric capacity, connecting line and non-wiring circle；First resistor R11 one end is connected with second resistance R12 one end；First resistor R11 is another
One end is connected with 3rd resistor RQ one end；The second resistance R12 other ends respectively with first inductance L0 one end, the first electric capacity C0
One end, the connection of second electric capacity C1 one end；The first inductance L01 other ends are connected with the transmitting terminal TX of NFC IC circuits；Second electric capacity
The C1 other ends are connected with the 3rd electric capacity C21 one end, the 4th electric capacity C22 one end, 3rd resistor RQ one end respectively；3rd resistor RQ is another
One end is connected with connecting line one end, non-wiring circle one end respectively；The first electric capacity C0 other ends, the 3rd electric capacity C21 other ends, the 4th
The electric capacity C22 other ends, the connecting line other end, the non-wiring circle other end are grounded；The controllable end of non-wiring circle connects with a controller
Connect.Two non-wiring circle controls can be changed by NFC IC internal controllers.
Two-way principle phase co-occurrence is explained just for operation principle all the way, is specially：NFC IC output frequencies are
13.56M carrier waves, the carrier wave is not pass through any tuning, if being connected directly to non-connect without the tuning of peripheral components
Coil can not carry out normal work, thus added between NFC IC and non-wiring circle related component be tuned it is excellent
Change, specially after IC outgoing carriers after EMC networks carry out frequency-selecting and filtering, then connected by subsequent capacitance, resistance tuning
Being connected to non-wiring circle just can be with normal work, and overall peripheral circuit effect is to complete the matching with non-wiring circle.Two-way device
Effect is identical, and only main devices all the way are explained now,
1.L0, C0
It is a filter circuit, their frequency filtering for the network of the EMC of leading portion circuit, i.e. L0, C0 composition
For 1/ (2*PI*sqrt (L*C)).
2.C1
C1 is primarily to impedance matching and the effect of isolated DC, while changing C1 also can somewhat change phase.
3. C21\C22
Mainly change phase
4.RQ
Main to change Q values, RQ is bigger, and Q values are smaller.Impedance is smaller.Vice versa.
Further, the connecting line is 50R coaxial cables or twisted-pair feeder.
Further, receiving terminal RX and first resistor R11 one end of the NFC IC circuits are connected（As shown in Figure 2）Or with
3rd resistor RQ one end is connected.The control of two kinds of receiving terminals is controlled by first resistor R11, second resistance R12.
Above-described embodiment is the utility model preferably embodiment, but embodiment of the present utility model is not by above-mentioned
The limitation of embodiment, it is other it is any without departing from Spirit Essence of the present utility model with made under principle change, modify, replace
Generation, combination, simplification, should be equivalent substitute mode, are included within protection domain of the present utility model.
Claims (3)
1. a kind of exported based on POS double antenna connects application circuit with the non-of reception, it is characterised in that：Non- tuning is connect including two groups
Functional circuit；Each group non-connect tuber function circuit include first to 3rd resistor, the first inductance, first to fourth electric capacity,
Connecting line and non-wiring circle；First resistor one end is connected with second resistance one end；The first resistor other end and 3rd resistor one end
Connection；The second resistance other end is connected with first inductance one end, first electric capacity one end, second electric capacity one end respectively；First
The inductance other end is connected with the transmitting terminal of NFC IC circuits；The second electric capacity other end respectively with the 3rd electric capacity one end, the 4th electric capacity
One end, the connection of 3rd resistor one end；The 3rd resistor other end is connected with connecting line one end, non-wiring circle one end respectively；First electricity
Hold the other end, the 3rd electric capacity other end, the 4th electric capacity other end, the connecting line other end, the non-wiring circle other end to be grounded；It is non-to connect
The controllable end of coil is connected with a controller.
2. according to claim 1 exported based on POS double antenna connects application circuit with the non-of reception, it is characterised in that：
The connecting line is 50R coaxial cables or twisted-pair feeder.
3. according to claim 1 exported based on POS double antenna connects application circuit with the non-of reception, it is characterised in that：
The receiving terminal of the NFC IC circuits is connected with first resistor one end or is connected with 3rd resistor one end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621421713.6U CN206340120U (en) | 2016-12-23 | 2016-12-23 | A kind of exported based on POS double antenna connects application circuit with the non-of reception |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621421713.6U CN206340120U (en) | 2016-12-23 | 2016-12-23 | A kind of exported based on POS double antenna connects application circuit with the non-of reception |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206340120U true CN206340120U (en) | 2017-07-18 |
Family
ID=59301254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621421713.6U Active CN206340120U (en) | 2016-12-23 | 2016-12-23 | A kind of exported based on POS double antenna connects application circuit with the non-of reception |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206340120U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109448181A (en) * | 2018-10-23 | 2019-03-08 | 佛山科学技术学院 | A kind of antitheft access control system |
-
2016
- 2016-12-23 CN CN201621421713.6U patent/CN206340120U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109448181A (en) * | 2018-10-23 | 2019-03-08 | 佛山科学技术学院 | A kind of antitheft access control system |
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