CN206413247U - A kind of electronic circuit - Google Patents
A kind of electronic circuit Download PDFInfo
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- CN206413247U CN206413247U CN201621438012.3U CN201621438012U CN206413247U CN 206413247 U CN206413247 U CN 206413247U CN 201621438012 U CN201621438012 U CN 201621438012U CN 206413247 U CN206413247 U CN 206413247U
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Abstract
The utility model discloses a kind of electronic circuit, for transmitting the first signal or secondary signal, and first signal and the secondary signal have same signal receiving end, including：The first pad, the second pad, public pad, the first signal input part, secondary signal input and signal receiving end on circuit board, wherein, first signal input part is connected to first pad, the secondary signal input is connected to second pad, the signal receiving end is connected to the public pad, first pad and the public pad are used for the electronic component for setting transmission first signal, and second pad and the public pad are used for the electronic component for setting the transmission secondary signal.The electronic circuit provided using the utility model, it is to avoid because circuit board upward wiring bifurcated causes the attenuation distortion of the first signal or secondary signal in transmitting procedure, it is ensured that the integrality of signal in transmitting procedure.
Description
Technical field
The utility model is related to communication technical field, more particularly, to a kind of electronic circuit.
Background technology
PCB (Printed Circuit Board, printed circuit board (PCB)), is important electronic unit, is electronic component
Supporter, is the carrier of electronic component electrical connection.Transmission of video is connect by the data/address bus of high speed on current pcb board
Mouthful, such as Dp interfaces (DisplayPort interfaces, a kind of coffret of high-resolution audio/video flow), HDMI (High
Definition Multimedia Interface, HDMI) etc., it is the characteristics of such data bus interface
Speed is fast, need impedance matching.
In order that on same pcb board compatible two kinds of different high speed signals transmission, i.e. two kinds of different high speed numbers of compatibility
The transmission of different high speed signals is carried out according to EBI, in the prior art, cloth is generally carried out using the PCB circuits shown in Fig. 1
Office.Illustrated so that the Dp interfaces on pcb board and HDMI transmit corresponding high speed signal as an example, referring to Fig. 1, positioned at PCB
Pad 110 on plate 10 is used for the resistance for welding the high speed signal of transmission Dp interface inputs, the pad 120 on pcb board 10
For the resistance for the high speed signal for welding transmission HDMI input, PCB circuits shown in Fig. 1 are in order to two kinds of compatible transmission
The high speed signal of different high speed signals, i.e. Dp interfaces input and the high speed signal of HDMI input, by one in pad 110
Individual pad is attached with a pad in pad 120.If need to transmit high speed signal by Dp interfaces on pcb board 10,
By the resistance welding of the high speed signal transmitted by Dp interfaces process in pad 110, if being needed on pcb board 10 by HDMI
When transmitting high speed signal, by the resistance welding of the high speed signal transmitted by HDMI process on pad 120.
PCB circuit layout modes shown in Fig. 1, the high speed signal transmitted by Dp interfaces is by being welded on pad 110
Resistance, which is reached, shares end, and in the transmitting procedure for the high speed signal that Dp interfaces are transmitted, part high speed signal can be along the He of pad 110
The junction transmission of pad 120, causes the decay of the high speed signal of transmission, it is impossible to ensure the integrality of the high speed signal of transmission.
Therefore, the PCB circuit layout modes shown in Fig. 1, occur in that the situation of cabling bifurcated, so that high speed signal is in transmitting procedure
In decay, it is impossible to ensure the integrality of signal.
Utility model content
A purpose of the present utility model is to provide a kind of new solution of electronic circuit.
According to one side of the present utility model there is provided a kind of electronic circuit, for transmitting the first signal or the second letter
Number, and first signal and the secondary signal have same signal receiving end, including：The first weldering on circuit board
Disk, the second pad, public pad, the first signal input part, secondary signal input and signal receiving end, wherein, described first
Signal input part is connected to first pad, and the secondary signal input is connected to second pad, and the signal connects
Receiving end is connected to the public pad, and first pad and the public pad are used for the electricity for setting transmission first signal
Subcomponent, second pad and the public pad are used for the electronic component for setting the transmission secondary signal.
Preferably, if the electronic circuit transmits first signal, the electronic circuit also includes：First electronics member
Part, is arranged on first pad and the public pad；Or
If the electronic circuit transmits the secondary signal, the electronic circuit also includes：Second electronic component, is set
In on second pad and the public pad.
Preferably, first electronic component is resistive element, and second electronic component is resistive element.
Preferably, the circuit board is one kind in PCB, FPC circuit boards, rigid-flexible circuit board.
Preferably, first signal is Dp interface video signals, and the secondary signal is HDMI vision signal.
Inventor's discovery of the present utility model, in the prior art, the problem of there is cabling bifurcated on PCB circuits so that
High speed signal is decayed during PCB circuit transmissions, it is impossible to the problem of ensureing the integrality of signal.Therefore, this practicality is new
The technical assignment or technical problem to be solved that type to be realized are that those skilled in the art never expect or not had
Anticipate, therefore the utility model is a kind of new technical scheme.
The electronic circuit that the utility model is provided includes a public pad, and the public pad can be used for setting transmission first to believe
Number electronic component, or, it may also be used for set transmission secondary signal electronic component, the utility model provide electronics electricity
Road, by setting a public pad on circuit boards, be capable of the transmission of compatible unlike signal, it is to avoid circuit board in the prior art
The cabling bifurcated situation of upper appearance so that the first signal input part is transmitted in the utility model the first signal or the second letter
The secondary signal that number input is transmitted can be transmitted intactly to signal receiving end, it is to avoid due to PCB upward wiring
Bifurcated causes the attenuation distortion of the first signal or secondary signal in transmitting procedure, it is ensured that signal is complete in transmitting procedure
Property.
It is of the present utility model other by referring to the drawings to the detailed description of exemplary embodiment of the present utility model
Feature and its advantage will be made apparent from.
Brief description of the drawings
The accompanying drawing for being combined in the description and constituting a part for specification shows embodiment of the present utility model, and
And be used to explain principle of the present utility model together with its explanation.
Fig. 1 shows the schematic layout pattern of PCB circuits in the prior art.
Fig. 2 shows the schematic layout pattern of the electronic circuit according to the utility model one embodiment.
Embodiment
Various exemplary embodiments of the present utility model are described in detail now with reference to accompanying drawing.It should be noted that：Unless another
Illustrate outside, the part and the positioned opposite of step, numerical expression and numerical value otherwise illustrated in these embodiments is not limited
Make scope of the present utility model.
The description only actually at least one exemplary embodiment is illustrative below, never as to this practicality
New and its application or any limitation used.
It may be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable
In the case of, the technology, method and apparatus should be considered as a part for specification.
In shown here and discussion all examples, any occurrence should be construed as merely exemplary, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it need not be further discussed in subsequent accompanying drawing in individual accompanying drawing.
In order to solve the above technical problems, the utility model provides a kind of electronic circuit, the electronic circuit compatible can be passed
Defeated two kinds of different signals, i.e. the first signal and secondary signal, and two kinds of different signals have same signal receiving end.This
In utility model, the first signal of electronic circuit transmission can be Dp interface video signals, and secondary signal can be HDMI video
Signal, wherein, the above-mentioned signal enumerated can be also other any type of high speed signals, to the utility model embodiment and cause
It is any to limit.
Fig. 2 shows the schematic layout pattern of the electronic circuit according to the utility model one embodiment.Referring to Fig. 2, the electricity
The first pad 210, the second pad 220, public pad 230, the first signal input part are provided with the circuit board 20 of sub-circuit
240th, secondary signal input 250, signal receiving end 260.Wherein, the first signal input part 240 as the first signal transmission
Interface, is connected to the first pad 210, and secondary signal input 250 is connected to the second pad as the coffret of secondary signal
220, and the same signal receiving end 260 that the first signal and secondary signal have is connected on public pad 230, the first pad
210 and public pad 230 be used for electronic component that the first signal of transmission is set, the second pad 220 and public pad 230 are used to set
Put the electronic component of transmission secondary signal.
The electronic circuit that the utility model is provided includes a public pad, and the public pad can be used for setting transmission first to believe
Number electronic component, or, it may also be used for set transmission secondary signal electronic component, the utility model provide electronics electricity
Road, being capable of two kinds of different signals of compatible transmission by setting a public pad on circuit boards, it is to avoid electric in the prior art
The cabling bifurcated situation occurred on the plate of road so that the first signal or secondary signal input that the first signal input part is transmitted
The secondary signal transmitted can be transmitted intactly to signal receiving end, it is to avoid because circuit board upward wiring bifurcated causes first
The attenuation distortion of signal or secondary signal in transmitting procedure, it is ensured that the integrality of signal in transmitting procedure.
In a preferred embodiment of the present utility model, the circuit board 20 shown in Fig. 2 can be PCB, FPC circuits
One kind in plate, rigid-flexible circuit board, or, can also be other any type of circuit boards, to this utility model not
Make any restriction.
In the utility model, by PCB of circuit board, the first signal be Dp interface video signals (i.e. the first signal
Input 240 uses Dp interfaces to carry out the transmission of Dp interface video signals), secondary signal is HDMI vision signal (i.e. the
Binary signal input 250 carries out the transmission of HDMI vision signal using HDMI) exemplified by, to the electronics electricity shown in Fig. 2
Road is described further.If PCB circuits are needed by Dp interface video signals, on the first pad 210 and public pad 230
An electronic component (for example, resistive element) is mounted, Dp interface video signals are transmitted to signal receiving end by the electronic component
260, during Dp interface video signals are transmitted to signal receiving end 260, it ensure that Dp interface video signals intactly
Transmitted from the first signal input part 240 to signal receiving end 260, be not in due to signal caused by pcb board upward wiring bifurcated
The problem of attenuation distortion.If PCB circuits are needed by HDMI vision signal, the second pad 220 and public affairs on pcb board
Mount an electronic component (for example, resistive element) on pad 230 altogether, HDMI vision signal by the electronic component transmit to
Signal receiving end 260, during HDMI video signal transmission to signal receiving end 260, ensure that HDMI
Vision signal is intactly transmitted to signal receiving end 260 from secondary signal input 250, is not in due to pcb board upward wiring
The problem of signal attenuation distorts caused by bifurcated.
In the utility model, electronic component attachment, for transmitting the first signal or secondary signal on pcb board is
Resistive element, can also be other any type of electronic components.If being mounted on pcb board, for transmitting the first signal or the
When the electronic component of binary signal is resistive element, the resistance of the resistive element needs to be matched with the signal transmitted, that is, selects
Go out a resistive element with suitable resistance, the resistive element is matched the most with the signal for needing to transmit.In the utility model,
According to different transmission signals, a resistive element can be selected from 0-50 Ω Standard resistance range to carry out the transmission of signal,
If for example, during transmission HDMI vision signal, optional resistance carries out signal transmission for 0 Ω resistance, if transmission Dp interfaces are regarded
During frequency signal, resistance may be selected and carries out signal transmission, it is necessary to be explanatorily, the above-mentioned transmission HDMI included for 20 Ω resistance
The resistance for the resistive element that interface video signal is selected, and the resistance of resistive element that transmission Dp interface video signals are selected,
It is merely possible to an example, it is not limited to which the resistance included, the utility model does not make any restriction to this.
Although some specific embodiments of the present utility model are described in detail by example, this area
It is to be understood by the skilled artisans that example above is merely to illustrate, rather than in order to limit scope of the present utility model.This
Field it is to be understood by the skilled artisans that can be in the case where not departing from scope and spirit of the present utility model, to above example
Modify.Scope of the present utility model is defined by the following claims.
Claims (5)
1. a kind of electronic circuit, for transmitting the first signal or secondary signal, and first signal and secondary signal tool
There is same signal receiving end, it is characterised in that including：The first pad, the second pad, public pad on circuit board,
One signal input part, secondary signal input and signal receiving end, wherein, first signal input part is connected to described first
Pad, the secondary signal input is connected to second pad, and the signal receiving end is connected to the public pad, institute
State the electronic component that the first pad and the public pad are used to set transmission first signal, second pad and described
Public pad is used for the electronic component for setting the transmission secondary signal.
2. electronic circuit according to claim 1, it is characterised in that if the electronic circuit transmits first signal
When, the electronic circuit also includes：First electronic component, is arranged on first pad and the public pad；Or
If the electronic circuit transmits the secondary signal, the electronic circuit also includes：Second electronic component, is arranged at institute
State on the second pad and the public pad.
3. electronic circuit according to claim 2, it is characterised in that first electronic component is resistive element, described
Second electronic component is resistive element.
4. the electronic circuit according to claim any one of 1-3, it is characterised in that the circuit board be PCB,
One kind in FPC circuit boards, rigid-flexible circuit board.
5. electronic circuit according to claim 4, it is characterised in that first signal is Dp interface video signals, institute
Secondary signal is stated for HDMI vision signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621438012.3U CN206413247U (en) | 2016-12-26 | 2016-12-26 | A kind of electronic circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621438012.3U CN206413247U (en) | 2016-12-26 | 2016-12-26 | A kind of electronic circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206413247U true CN206413247U (en) | 2017-08-15 |
Family
ID=59553073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621438012.3U Active CN206413247U (en) | 2016-12-26 | 2016-12-26 | A kind of electronic circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206413247U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108089657A (en) * | 2017-12-14 | 2018-05-29 | 曙光信息产业(北京)有限公司 | Mainboard and server |
| CN108429047A (en) * | 2018-03-15 | 2018-08-21 | 青岛海信电器股份有限公司 | A kind of signal transmitting apparatus and the signal compatibility design method applied to it |
| CN111770629A (en) * | 2020-07-10 | 2020-10-13 | 福建升腾资讯有限公司 | Method for multiplexing on PCB |
| CN112235934A (en) * | 2020-09-02 | 2021-01-15 | 深圳市广和通无线股份有限公司 | Functional module and electronic device |
| CN113395828A (en) * | 2021-05-27 | 2021-09-14 | 合肥鑫晟光电科技有限公司 | Printed circuit board, display panel and electronic equipment |
| CN116056321A (en) * | 2022-08-05 | 2023-05-02 | 荣耀终端有限公司 | Circuit board, circuit board assembly and electronic equipment |
-
2016
- 2016-12-26 CN CN201621438012.3U patent/CN206413247U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108089657A (en) * | 2017-12-14 | 2018-05-29 | 曙光信息产业(北京)有限公司 | Mainboard and server |
| CN108089657B (en) * | 2017-12-14 | 2020-01-10 | 曙光信息产业(北京)有限公司 | Mainboard and server |
| CN108429047A (en) * | 2018-03-15 | 2018-08-21 | 青岛海信电器股份有限公司 | A kind of signal transmitting apparatus and the signal compatibility design method applied to it |
| CN111770629A (en) * | 2020-07-10 | 2020-10-13 | 福建升腾资讯有限公司 | Method for multiplexing on PCB |
| CN112235934A (en) * | 2020-09-02 | 2021-01-15 | 深圳市广和通无线股份有限公司 | Functional module and electronic device |
| CN113395828A (en) * | 2021-05-27 | 2021-09-14 | 合肥鑫晟光电科技有限公司 | Printed circuit board, display panel and electronic equipment |
| CN116056321A (en) * | 2022-08-05 | 2023-05-02 | 荣耀终端有限公司 | Circuit board, circuit board assembly and electronic equipment |
| CN116056321B (en) * | 2022-08-05 | 2023-10-20 | 荣耀终端有限公司 | Circuit board, circuit board assembly and electronic equipment |
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