CN203934095U - A kind ofly prevent and treat the circuit structure that the signal of telecommunication is interfered - Google Patents
A kind ofly prevent and treat the circuit structure that the signal of telecommunication is interfered Download PDFInfo
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- CN203934095U CN203934095U CN201420239699.2U CN201420239699U CN203934095U CN 203934095 U CN203934095 U CN 203934095U CN 201420239699 U CN201420239699 U CN 201420239699U CN 203934095 U CN203934095 U CN 203934095U
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- signal
- interfered
- telecommunication
- ground connection
- circuit
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Abstract
Preventing and treating the circuit structure that the signal of telecommunication is interfered, is that the holding wire that is attached to arbitrary electric loop of circuit board is hidden between any dielectric layers repeatedly connecing each other, and the signal of telecommunication that walks in holding wire is not interfered.Each electric loop, power supply and system circuit system join with exclusive separately ground connection source separately individually, and these ground connection sources systems each other isolation do not join, the signal of telecommunication that walks in this holding wire, electric loop, power supply and system circuit is not all interfered.
Description
Technical field
The utility model relates to the circuit structure that the control signal of telecommunication is interfered, refer to especially and can prevent and treat the puzzlement that circuit is subject to Electromagnetic Interference (EMI) or radio frequency interference (RFI), and the puzzlement of identical ground connection common mode disturbances that source produces, make the running of circuit, power supply and system more accurate, prevent and treat more normally the circuit structure that the signal of telecommunication is interfered.
Background technology
Circuit can be subject to the interference of various internal factors or foeign element unavoidably and have influence on the correctness of its running.It is different that yet interference type is pressed jamming pattern conventionally, can be divided into common mode disturbances (Common-Mode Interference) and differential mode interference (Differential-Mode Interference).Common mode disturbances and differential mode interference are a kind of more conventional sorting techniques.Touch altogether that to disturb be the potential difference of signal to ground connection source, mainly by electrical network seal in, potential difference and spacing electromagnetic radiation between different ground connection source formed at common-mode (equidirectional) voltage superposition of the online induction of signal.Common-mode voltage is sometimes larger, particularly adopts the poor power supply unit of isolation performance, and the common-mode voltage of conveying is generally higher.Common-mode voltage sees through unsymmetric circuit and is convertible into differential mode voltage, directly affect measurement and control signal, cause former device failure ﹝ Here it is the higher master of input/output (I/0) module spoilage of some systems to want former in ﹞, this common mode disturbances can be direct current, also can be interchange.
Differential mode interference refers to the interference voltage that acts on signal two interpolars, and mainly, by external electromagnetic field inductive coupling and the formed voltage of unbalanced circuit conversion common mode disturbances between signal, directly superposition is on signal, and directly impact is measured and control precision.The circuit arrangement (Layout) of known electronic installation is mostly the surface that is exposed to printed circuit board (PCB), be difficult to avoid to be subject to the inductive coupling of external electromagnetic field and cause Electromagnetic Interference (Electromagnetic Interference, be called for short EMI) or the puzzlement of radio frequency interference (Radio Frequency Interference is called for short RFI).
In addition,, because the electronic loads such as the holding wire of circuit, power supply, system are connected to identical ground connection source mostly altogether, therefore easily produce the puzzlement of common mode disturbances.
Summary of the invention
For addressing the above problem, the utility model provides a kind of circuit structure that the signal of telecommunication is interfered of preventing and treating, system comprises at least two-layer insulating barrier successively repeatedly connecing, at least one layer circuit board and is attached at least one electric loop on described circuit board, and the signal linear system in described electric loop is hidden between any dielectric layers repeatedly connecing each other, and the signal of telecommunication that walks in holding wire is not interfered.
The circuit structure that this novel disclosed control signal of telecommunication is interfered, also comprise at least two group electricity loop and at least two group ground connection sources, and each is organized electric loop system and joins with exclusive separately ground connection source individually separately, and these ground connection sources system each other isolation do not join, the signal of telecommunication that walks in this holding wire and electric loop is not all interfered.
The circuit structure that this novel disclosed control signal of telecommunication is interfered, system further comprises at least one group of power supply that is powered at this electricity loop, wherein the ground connection linear system of this power supply is joined with exclusive separately ground connection source individually, and the signal of telecommunication that walks in holding wire and electric loop is not all interfered.
The circuit structure that this novel disclosed control signal of telecommunication is interfered, system attaches troops to a unit in a system circuit, and the earth terminal of this system circuit joins with exclusive separately ground connection source individually, the signal of telecommunication that makes to walk in holding wire, electric loop and the system circuit person that is not interfered.
The beneficial effects of the utility model are: the utility model can be prevented and treated the puzzlement that circuit is subject to Electromagnetic Interference (EMI) or radio frequency interference (RFI), and the puzzlement of identical ground connection common mode disturbances that source produces, make the running of circuit, power supply and system more accurate, more normal.
Accompanying drawing explanation
Fig. 1 is the three-dimensional exploded view of the first embodiment of the present utility model.
Fig. 2 is the three-dimensional combination figure of Fig. 1.
Fig. 3 is to be the ground connection schematic diagram of the second embodiment of the present utility model.
Embodiment
Refer to shown in Fig. 1-3, the utility model provides a kind of circuit structure that the signal of telecommunication is interfered of preventing and treating, the circuit board (12) that system comprises at least two-layer insulating barrier successively repeatedly connecing (13) (14) and at least one electric loop that is attached to this circuit board (12), and the holding wire in this electricity loop (151) (152) (161) (162) (D-) (D+) (TX-) (TX+) (RX-) or (RX+) hidden between any dielectric layers (13) (14) repeatedly connecing each other, make to walk in (D-) (D+) (TX-) (TX+) signal of telecommunication (RX-) or (RX+) person that is not interfered of holding wire (151) (152) (161) (162).
Refer to shown in Fig. 3, the circuit structure that this novel disclosed control signal of telecommunication is interfered, system comprises at least two groups electricity loops and at least two group ground connection sources (GND1) and (GND2), and each is organized electric loop system and with exclusive separately ground connection source (GND1) or (GND2), joins individually separately, and these ground connection sources (GND1) and (GND2) be that isolation is not joined each other, the signal of telecommunication that makes to walk in this holding wire (151) (152) (161) (162) and the electric loop person that is not all interfered.
Refer to shown in Fig. 3, the circuit structure that this novel disclosed control signal of telecommunication is interfered, system further comprises at least one group of power supply (P) that is powered at this electricity loop, wherein the earth terminal of this power supply (P) system joins with exclusive ground connection source (GNDP) individually, the signal of telecommunication that makes to walk in holding wire (151) (152) (161) (162) and the electric loop person that is not all interfered.
The circuit structure that this novel disclosed control signal of telecommunication is interfered, system attaches troops to a unit in a system circuit (S), and the earth terminal of this system circuit (S) joins with exclusive separately ground connection source (GNDS) individually, the signal of telecommunication that makes to walk in holding wire (151) (152) (161) (162), electric loop and system circuit (S) person that is not interfered.
Above execution mode is only that preferred implementation of the present utility model is described; not scope of the present utility model is limited; do not departing under the prerequisite of the utility model design spirit; various distortion and improvement that the common engineers and technicians in this area make the technical solution of the utility model, all should fall in the definite protection range of claims of the present utility model.
Claims (5)
1. prevent and treat the circuit structure that the signal of telecommunication is interfered for one kind, it is characterized in that: be to comprise at least two-layer insulating barrier successively repeatedly connecing, at least one layer circuit board and be attached at least one electric loop on described circuit board, and the signal linear system in described electric loop is hidden between any dielectric layers repeatedly connecing each other, and the signal of telecommunication that walks in holding wire is not interfered.
2. a kind of circuit structure that the signal of telecommunication is interfered of preventing and treating according to claim 1, it is characterized in that: also comprise at least two group electricity loop and at least two group ground connection sources, and each is organized electric loop system and joins with exclusive separately ground connection source individually separately, and these ground connection sources system each other isolation do not join, the signal of telecommunication that walks in this holding wire and electric loop is not all interfered.
3. a kind of circuit structure that the signal of telecommunication is interfered of preventing and treating according to claim 1, it is characterized in that: be further to comprise at least one group of power supply that is powered at this electricity loop, wherein the ground connection linear system of this power supply is joined with exclusive separately ground connection source individually, and the signal of telecommunication that walks in holding wire and electric loop is not all interfered.
4. a kind of circuit structure that the signal of telecommunication is interfered of preventing and treating according to claim 2, it is characterized in that: be further to comprise at least one group of power supply that is powered at this electricity loop, wherein the ground connection linear system of this power supply is joined with exclusive separately ground connection source individually, and the signal of telecommunication that walks in holding wire and electric loop is not all interfered.
5. according to a kind of described in arbitrary one of claim 1 to 4, prevent and treat the circuit structure that the signal of telecommunication is interfered, it is characterized in that: be to attach troops to a unit in a system circuit, and the earth connection of this system circuit joins with exclusive separately ground connection source individually, the signal of telecommunication that walks in holding wire, electric loop and system circuit is not interfered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420239699.2U CN203934095U (en) | 2014-05-12 | 2014-05-12 | A kind ofly prevent and treat the circuit structure that the signal of telecommunication is interfered |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420239699.2U CN203934095U (en) | 2014-05-12 | 2014-05-12 | A kind ofly prevent and treat the circuit structure that the signal of telecommunication is interfered |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203934095U true CN203934095U (en) | 2014-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420239699.2U Expired - Fee Related CN203934095U (en) | 2014-05-12 | 2014-05-12 | A kind ofly prevent and treat the circuit structure that the signal of telecommunication is interfered |
Country Status (1)
| Country | Link |
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| CN (1) | CN203934095U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103957686A (en) * | 2014-05-12 | 2014-07-30 | 东莞建仪医疗电子有限公司 | Method for preventing electric signals from being interfered and circuit structure |
-
2014
- 2014-05-12 CN CN201420239699.2U patent/CN203934095U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103957686A (en) * | 2014-05-12 | 2014-07-30 | 东莞建仪医疗电子有限公司 | Method for preventing electric signals from being interfered and circuit structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20190512 |