CN103427782A - Double-range signal attenuation device - Google Patents
Double-range signal attenuation device Download PDFInfo
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- CN103427782A CN103427782A CN2012101512794A CN201210151279A CN103427782A CN 103427782 A CN103427782 A CN 103427782A CN 2012101512794 A CN2012101512794 A CN 2012101512794A CN 201210151279 A CN201210151279 A CN 201210151279A CN 103427782 A CN103427782 A CN 103427782A
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Abstract
The invention relates to a double-rang signal attenuation device which comprises a circuit board, an attenuation integrated circuit, a plurality of first plugging connectors and a plurality of second plugging connectors. The attenuation integrated circuit is arranged on the circuit board and comprises a plurality of analog signal channels. The first plugging connectors are arranged at one end of the circuit board in a rowing mode and are used for being correspondingly connected with a port of a first module to be plugged and the input ends of the analog signal channels, each first plugging connector comprises a fixed piece and a movable piece, each fixed piece is welded to the circuit board, one end of each movable piece is connected to the each fixing piece in a pluggable mode, and the other end of the movable piece is connected to each first module to be plugged in a plugging mode; a first conductive piece is arranged in each fixed piece, a second conductive piece is arranged in each movable piece, and the second conductive pieces are used for being connected with the first conductive pieces. The second plugging connectors are arranged at the other end of the circuit board in a rowing mode and are used for being correspondingly connected to a port of a second module to be plugged and the output ends of the analog signal channels, and the structure of each second plugging connector is same as the structure of each first plugging connector. The double-rang signal attenuation device integrates the analog signal channels and lowers processing cost.
Description
Technical field
The present invention relates to signal attenuation device, relate in particular to a kind of double-range single attenuation device.
Background technology
At present, on market, the electronic module of outputting analog signal will be realized the decay of signal, the mode and other module that mainly with cable, connect are carried out integrated, make the system after integrated loaded down with trivial details and messy, and do not possess impedance matching, frequency compensation, the characteristics such as range protection, because the decay series products of rare moulding on the market can be used, so generally in actual applications, need designer oneself to build the attenuator circuit met the demands, this method makes the attenuator circuit of designer's design iterations different parameters, also to consider the input impedance coupling simultaneously, the factors such as signal outrange protection, implement more complicated, and for whole row's input signal, be difficult to carry out the integrated of attenuator circuit, can not adjust flexibly attenuation multiple, not only having increased research and development drops into, and lengthened the construction cycle.
And, for saving the complex way connected with cable, need to seek new method to be connected with plugging into of intermodule to be connected to realize whole row's input/output end port, make to connect fastening, accurate, and can not increase difficulty and the processing cost of machining, installation.Because whole row's input/output end port need to design according to the distance between the corresponding ports for the treatment of plug-in module, if directly weld port in a row, distance between whole row's port is very accurate, circuit board plate making machinery manufacturing tolerance is required to reach in 0.02mm, thereby need expensive processing cost.
Summary of the invention
Provide hereinafter about brief overview of the present invention, in order to the basic comprehension about some aspect of the present invention is provided.Should be appreciated that this general introduction is not about exhaustive general introduction of the present invention.It is not that intention is determined key of the present invention or pith, and nor is it intended to limit the scope of the present invention.Its purpose is only that the form of simplifying provides some concept, usings this as the preorder in greater detail of discussing after a while.
A main purpose of the present invention is to provide a kind of double-range single attenuation device, can integrated a plurality of attenuator circuits, guarantee the grafting between whole row's input/output end port and the external circuit board corresponding ports and cut down finished cost.
For achieving the above object, the invention provides a kind of double-range single attenuation device, comprising:
Circuit board;
The decay integrated circuit, the decay integrated circuit is arranged on circuit board, the decay integrated circuit comprises a plurality of analog signal channels, separate between each analog signal channel, each analog signal channel comprises direct circuit, attenuator circuit, outrange protective circuit and selector switch, direct circuit is connected corresponding analog signal channel input with attenuator circuit is with for treating that from first plug-in module receives external analog signal, selector switch optionally is connected direct circuit or attenuator circuit with the outrange protective circuit, the outrange protective circuit is as the output of corresponding analog signal channel, for to second until plug-in module output attenuatoin signal or through connect signal and externally analog signal stop output after exceeding default range,
A plurality of the first connection-pegs, be arranged in rows in an end of circuit board, treat the port of plug-in module and the input of analog signal channel for corresponding connection first, each first connection-peg comprises fixture and movable part, fixture is welded on circuit board, one end of movable part can be plugged on fixture with plugging, the other end of movable part first is treated plug-in module for pegging graft, be provided with the first electric-conductor in fixture, one end of the first electric-conductor connects the input of corresponding analog signal channel, be provided with the second electric-conductor in movable part, one end of the second electric-conductor is treated plug-in module for connecting first, the other end of the first electric-conductor for being connected with the other end of the second electric-conductor after movable part is plugged to fixture,
A plurality of the second connection-pegs, be arranged in rows in the other end of circuit board, connects second for correspondence and treat the port of plug-in module and the output of analog signal channel, and the structure of each second connection-peg is identical with the structure of each the first connection-peg.
Alternatively, the first connection-peg in a row is the SMB connection-peg.
Alternatively, the second connection-peg in a row is the SMB connection-peg.
Alternatively, fixture has the weld part that is welded on circuit board and the resettlement section of connecting welding section, and described resettlement section is for an end of the movable part of pegging graft.
Alternatively, resettlement section has annular container cavity, and an end of movable part is hollow structure, for the annular container cavity that coordinates resettlement section to realize the grafting between movable part and fixture.
Alternatively, the first electric-conductor is arranged on the center of resettlement section, and the second electric-conductor is arranged on the center of movable part, and after an end of movable part inserts annular container cavity, the first electric-conductor and the second electric-conductor contact.
Alternatively, the decay integrated circuit also comprises digital trigger port.
Double-range single attenuation device of the present invention is integrated in a plurality of analog signal channels in circuit board and realizes plugging into without cable between system; make to connect fastening, accurate and easy to use; avoided the shortcoming that can not meet impedance matching, frequency compensation, outrange protection etc. caused with the cable connected mode, and when design as required flexible configuration resistance realize different attenuation coefficients with the input signal for each passage.But due to the connect-disconnect structure between movable part and fixture, compare the structure that is completely fixed that only relies on welding to bring, increased the idle running scope that single connection-peg is pegged graft and allowed when plug-in module, even lower apart from accuracy between each plumb joint therefore during welding, also can in certain idle running scope, realize and being connected of the corresponding ports for the treatment of plug-in module, therefore can be lowered into the difficulty of socket joint when circuit board plate-making and machining and installation, thereby also reduce processing cost.
The accompanying drawing explanation
Below with reference to the accompanying drawings illustrate embodiments of the invention, can understand more easily above and other objects, features and advantages of the present invention.Parts in accompanying drawing are just in order to illustrate principle of the present invention.In the accompanying drawings, same or similar technical characterictic or parts will adopt same or similar Reference numeral to mean.
The circuit diagram of a kind of execution mode that Fig. 1 is double-range single attenuation device of the present invention.
The structural representation of a kind of execution mode that Fig. 2 is double-range single attenuation device of the present invention.
The exploded view that Fig. 3 is the first connection-peg in Fig. 1.
Embodiment
Embodiments of the invention are described with reference to the accompanying drawings.The element of describing in an accompanying drawing of the present invention or a kind of execution mode and feature can combine with element and feature shown in one or more other accompanying drawing or execution mode.It should be noted that for purposes of clarity, omitted expression and the description of unrelated to the invention, parts known to persons of ordinary skill in the art and processing in accompanying drawing and explanation.
With reference to figure 1 and Fig. 2, a kind of execution mode of double-range single attenuation device of the present invention comprises decay integrated circuit 10, decay integrated circuit 10 can be arranged on circuit board 20 as shown in Figure 2, decay integrated circuit 10 comprises a plurality of analog signal channels, as the analog signal channel CH1-CH8 in Fig. 1, separate between each analog signal channel, each analog signal channel comprises direct circuit 12, attenuator circuit 14, outrange protective circuit 16 and selector switch 18, direct circuit 12 is connected the input of corresponding analog signal channel with attenuator circuit 14, for receiving external analog signal, selector switch 18 is for optionally being connected direct circuit 12 or attenuator circuit 14 with the outrange protective circuit, the outrange protective circuit is for output attenuatoin signal or through connect signal and stop output after analog signal exceeds default range.
There is direct circuit 12 and attenuator circuit 14 in each analog signal channel, therefore can select different ranges to each analog signal channel as required, for example, the range of the direct circuit 12 in each analog signal channel is 1 times of decay range, and the range of attenuator circuit 14 can be 10 times of decay ranges.
Alternatively, in each attenuator circuit 14, be provided with resistance, when design, can need in each attenuator circuit 14, configure different resistance to obtain the attenuation coefficient needed according to the user, to adapt to analog signal to be decayed, and realize impedance matching.
Alternatively, decay integrated circuit 10 also can comprise digital trigger port.
Treat that in order to connect first plug-in module is to receive external analog signal, double-range single attenuation device of the present invention also comprises a plurality of the first connection-pegs 30, be arranged in rows in an end of circuit board 20, connect first for correspondence and treat the port of plug-in module and the input of analog signal channel.
With reference to figure 3, each first connection-peg 30 comprises fixture 32 and movable part 34, fixture 32 is welded on circuit board 20, one end of movable part 34 can be plugged on fixture 32 with plugging, the other end first is treated plug-in module for pegging graft, be provided with the first electric-conductor 320 in fixture 32, one end of the first electric-conductor 320 connects the input of corresponding analog signal channel, be provided with the second electric-conductor 340 in movable part 34, one end of the second electric-conductor 340 is treated plug-in module for connecting first, the other end of the first electric-conductor 320 is connected with the other end of the second electric-conductor 340 after at movable part 34, being plugged to fixture 320, treat that to realize circuit board 20 and first signal between plug-in module connects.
Alternatively, fixture 32 has the weld part 322 be welded on circuit board 20, and the 324， resettlement section, resettlement section 324 that is connected to weld part 322 is for the movable part 34 of pegging graft.
Alternatively, there is annular container cavity 3240 on resettlement section 324.One end of movable part 34 is hollow structure, for coordinating annular container cavity 3240 on resettlement section 324 to realize the grafting between movable part 34 and fixture 32.
Alternatively, the first electric-conductor 320 is arranged on 324De center, resettlement section, and the second electric-conductor is arranged on movable part 34De center.When an end of movable part 34 inserts annular container cavity 3240, the first electric-conductor 320 and the second electric-conductor 340 contact.
For to the second plug-in module output attenuatoin signal or through connect signal, double-range single attenuation device of the present invention also comprises a plurality of the second connection-peg (not shown)s, be arranged in rows in the other end of circuit board 20, connect second for correspondence and treat the port of plug-in module and the output of analog signal channel.
The structure of each second connection-peg is identical with the structure of the first connection-peg 30, particularly, each second connection-peg also comprises fixture and movable part 34, fixture is welded on circuit board, one end of movable part can be plugged on fixture with plugging, the other end second is treated plug-in module for pegging graft, be provided with the first electric-conductor in fixture, one end of the first electric-conductor connects the output of corresponding analog signal channel, be provided with the second electric-conductor in movable part, one end of the second electric-conductor is treated plug-in module for connecting second, the other end of the first electric-conductor for being connected with the other end of the second electric-conductor after movable part is plugged to fixture, treat that to realize circuit board 20 and second signal between plug-in module connects.
Alternatively, the first connection-peg 30 and the second connection-peg that circuit board 20 two ends are in a row are SMB(Server Message Block) connection-peg, double-range single attenuation device of the present invention can be applicable to PXI(PCI eXtensions for Instrumentation, PCI expansion towards instrument system) system is to realize the operation of plugging between the PXI system, needs according to application, also can be designed to the connection-peg at circuit board 20 two ends the interface of other type.
With reference to figure 3, each first connection-peg 30 comprises fixture 32 and movable part 34, fixture 32 is welded on circuit board 20, one end of movable part 34 can be plugged on fixture 32 with plugging, the other end second is treated plug-in module for pegging graft, be provided with the first electric-conductor 320 in fixture 32, one end of the first electric-conductor 320 connects the input of corresponding analog signal channel, be provided with the second electric-conductor 340 in movable part 34, one end of the second electric-conductor 340 is treated plug-in module for connecting second, the other end of the first electric-conductor 320 is connected with the other end of the second electric-conductor 340 after at movable part 34, being plugged to fixture 320, to realize circuit board 20 and first, second treats that the signal between plug-in module connects.
Alternatively, fixture 32 has the weld part 322 be welded on circuit board 20, and the 324， resettlement section, resettlement section 324 that is connected to weld part 322 is for the movable part 34 of pegging graft.
Alternatively, there is annular container cavity 3240 on resettlement section 324.One end of movable part 34 is hollow structure, for coordinating annular container cavity 3240 on resettlement section 324 to realize the grafting between movable part 34 and fixture 32.
Alternatively, the first electric-conductor 320 is arranged on 324De center, resettlement section, and the second electric-conductor is arranged on movable part 34De center.When an end of movable part 34 inserts annular container cavity 3240, the first electric-conductor 320 and the second electric-conductor 340 contact.
Double-range single attenuation device of the present invention is integrated in a plurality of analog signal channels in circuit board and realizes plugging into without cable between system; make to connect fastening, accurate and easy to use; avoided the shortcoming that can not meet impedance matching, frequency compensation, outrange protection etc. caused with the cable connected mode, and when design as required flexible configuration resistance realize different attenuation coefficients with the input signal for each passage.
But due to the connect-disconnect structure between movable part 34 and fixture 32, compare the structure that is completely fixed that only relies on welding to bring, increased first, second idle running scope allowed that single connection-peg 30 is pegged graft when plug-in module, even lower apart from accuracy between each plumb joint therefore during welding, also can in certain idle running scope, realize and being connected of the corresponding ports for the treatment of plug-in module, therefore can be lowered into the difficulty of socket joint when circuit board plate-making and machining and installation, thereby also reduce processing cost.
In system of the present invention, obviously, each parts or each step reconfigure after can decomposing, combine and/or decomposing.These decomposition and/or reconfigure and should be considered as equivalents of the present invention.Simultaneously, in the above in the description to the specific embodiment of the invention, the feature of describing and/or illustrating for a kind of execution mode can be used in same or similar mode in one or more other execution mode, combined with the feature in other execution mode, or substitute the feature in other execution mode.
In equipment of the present invention, obviously, each parts reconfigure after can decomposing, combine and/or decomposing.These decomposition and/or reconfigure and should be considered as equivalents of the present invention.In the above in the description to the specific embodiment of the invention, the feature of describing and/or illustrating for a kind of execution mode can be used in same or similar mode in one or more other execution mode, combined with the feature in other execution mode, or substitute the feature in other execution mode.
Should emphasize, term " comprises/comprises " existence that refers to feature, key element, step or assembly when this paper is used, but does not get rid of the existence of one or more further feature, key element, step or assembly or add.
Although described the present invention and advantage thereof in detail, be to be understood that in the situation that do not exceed the spirit and scope of the present invention that limited by appended claim and can carry out various changes, alternative and conversion.And scope of the present invention is not limited only to the specific embodiment of the described process of specification, equipment, means, method and step.The one of ordinary skilled in the art will readily appreciate that from disclosure of the present invention, can use according to the present invention and carries out with the essentially identical function of corresponding embodiment described herein or obtain process, equipment, means, method or step result essentially identical with it, that existing and will be developed future.Therefore, appended claim is intended to comprise such process, equipment, means, method or step in their scope.
Claims (7)
1. a double-range single attenuation device, is characterized in that, comprising:
Circuit board;
The decay integrated circuit, described decay integrated circuit is arranged on described circuit board, described decay integrated circuit comprises a plurality of analog signal channels, separate between each analog signal channel, each analog signal channel comprises direct circuit, attenuator circuit, outrange protective circuit and selector switch, described direct circuit is connected corresponding analog signal channel input with attenuator circuit is with for treating that from first plug-in module receives external analog signal, described selector switch optionally is connected described direct circuit or attenuator circuit with described outrange protective circuit, described outrange protective circuit is as the output of corresponding analog signal channel, for to second until plug-in module output attenuatoin signal or through connect signal and after described external analog signal exceeds default range, stopping output,
A plurality of the first connection-pegs, be arranged in rows in an end of described circuit board, treat the port of plug-in module and the input of analog signal channel for corresponding connection described first, each described first connection-peg comprises fixture and movable part, described fixture is welded on described circuit board, one end of described movable part can be plugged on described fixture with plugging, the other end of described movable part described first is treated plug-in module for pegging graft, be provided with the first electric-conductor in described fixture, one end of described the first electric-conductor connects the input of corresponding analog signal channel, be provided with the second electric-conductor in described movable part, one end of described the second electric-conductor is treated plug-in module for connecting described first, the other end of described the first electric-conductor for being connected with the other end of described the second electric-conductor after described movable part is plugged to described fixture,
A plurality of the second connection-pegs, be arranged in rows in the other end of described circuit board, connects described second for correspondence and treat the port of plug-in module and the output of analog signal channel, and the structure of each described the second connection-peg is identical with the structure of each described the first connection-peg.
2. double-range single attenuation device as claimed in claim 1, is characterized in that, described the first connection-peg in a row is the SMB connection-peg.
3. double-range single attenuation device as claimed in claim 1, is characterized in that, described the second connection-peg in a row is the SMB connection-peg.
4. described double-range single attenuation device as arbitrary as claim 1-3, is characterized in that, described fixture has the resettlement section that is welded on the weld part on described circuit board and connects described weld part, and described resettlement section is for an end of the described movable part of pegging graft.
5. double-range single attenuation device as claimed in claim 4, it is characterized in that, described resettlement section has annular container cavity, and an end of described movable part is hollow structure, for the annular container cavity that coordinates described resettlement section to realize the grafting between described movable part and fixture.
6. double-range single attenuation device as claimed in claim 5, it is characterized in that, described the first electric-conductor is arranged on the center of described resettlement section, described the second electric-conductor is arranged on the center of described movable part, after an end of described movable part inserts described annular container cavity, described the first electric-conductor and the second electric-conductor contact.
7. double-range single attenuation device as claimed in claim 1, it is characterized in that: described decay integrated circuit also comprises digital trigger port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101512794A CN103427782A (en) | 2012-05-15 | 2012-05-15 | Double-range signal attenuation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101512794A CN103427782A (en) | 2012-05-15 | 2012-05-15 | Double-range signal attenuation device |
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| CN103427782A true CN103427782A (en) | 2013-12-04 |
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| CN2012101512794A Pending CN103427782A (en) | 2012-05-15 | 2012-05-15 | Double-range signal attenuation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106443416A (en) * | 2016-11-18 | 2017-02-22 | 中国电子科技集团公司第二十九研究所 | Method and apparatus for realizing self-calibration of microwave performance of multi-layer circuit board |
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| US3658422A (en) * | 1969-07-18 | 1972-04-25 | Pye Ltd | Dual range double beam null-type spectrophotometer |
| CN102223181A (en) * | 2011-06-16 | 2011-10-19 | 安徽问天量子科技股份有限公司 | Control method of electrical variable optical attenuator and optical attenuation system |
| CN202772852U (en) * | 2012-05-15 | 2013-03-06 | 北京泛华恒兴科技有限公司 | Double-range signal attenuation device |
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2012
- 2012-05-15 CN CN2012101512794A patent/CN103427782A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3658422A (en) * | 1969-07-18 | 1972-04-25 | Pye Ltd | Dual range double beam null-type spectrophotometer |
| CN102223181A (en) * | 2011-06-16 | 2011-10-19 | 安徽问天量子科技股份有限公司 | Control method of electrical variable optical attenuator and optical attenuation system |
| CN202772852U (en) * | 2012-05-15 | 2013-03-06 | 北京泛华恒兴科技有限公司 | Double-range signal attenuation device |
Non-Patent Citations (2)
| Title |
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| DAVE KRAFCSIK 等: "Broadband, Low-Loss 5-and 6-Bit Digital Attenuators", 《MIRCOWAVE SYMPOSIUM DIGEST,1995.,IEEE MTT-S INTERNATIONAL》 * |
| 钱桂香: "超宽带低相移单片六位微波数字衰减器的设计与研究", 《万方硕士学位论文全文数据库》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106443416A (en) * | 2016-11-18 | 2017-02-22 | 中国电子科技集团公司第二十九研究所 | Method and apparatus for realizing self-calibration of microwave performance of multi-layer circuit board |
| CN106443416B (en) * | 2016-11-18 | 2018-12-25 | 中国电子科技集团公司第二十九研究所 | One kind being able to achieve multilayer circuit board microwave property method for self-calibrating and device |
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Owner name: SHANGHAI ENAI INSTRUMENT CO., LTD. Free format text: FORMER OWNER: BEIJING FANHUA HENGXING TECHNOLOGY CO., LTD. Effective date: 20150810 |
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Effective date of registration: 20150810 Address after: 201203 Zhang Dong Road, Shanghai, No. forty-third, building 1387, 45, Pudong New Area Applicant after: Beijing Fanhua Hengxing Technology Co., Ltd. Address before: 100192, Beijing, Haidian District West Road, 66 Dongsheng Science Park North Territory, A-4 building Applicant before: Beijing Fanhua Hengxing Technology Co., Ltd. |
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Application publication date: 20131204 |