CN208754378U - A kind of polyphaser selection circuit - Google Patents
A kind of polyphaser selection circuit Download PDFInfo
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- CN208754378U CN208754378U CN201821321653.XU CN201821321653U CN208754378U CN 208754378 U CN208754378 U CN 208754378U CN 201821321653 U CN201821321653 U CN 201821321653U CN 208754378 U CN208754378 U CN 208754378U
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Abstract
The utility model discloses a kind of polyphaser selection circuits, channel is gated including camera, channel selection circuit, camera image selection circuit, multichannel camera, image amplifier, first signal output interface and second signal output interface, camera gating channel output end is connect with channel selection circuit input terminal, channel selection circuit output end and multichannel camera output end are connect with camera image selection circuit input terminal respectively, camera image selection circuit output end is connect with image amplifier input terminal, first signal output interface, second signal output interface is connect with the output end of image amplifier.The polyphaser selection circuit has gating function, corresponding camera can be selected to carry out image transmitting by changing input signal.
Description
Technical field
The utility model relates to the technical field of pcb board, in particular to a kind of polyphaser selection circuit.
Background technique
Now, as soon as there is many sizes on more and more customer requirement PCB punching machine equipments, such machine energy
Go out the plank of more sizes, when design considers to produce more plank size, each size needs two to four cameras to go to grab
The reference target of plank is taken, if the board, there are six not shared size, each size needs to use four cameras and carries out pair
Position, entire machine just need 24 cameras in total, and actually computer software need to only receive four cameras every time and send
Image and handled, how to allow 24 cameras every time only transmit correspondingly-sized four target positions image, at
For problem.
For this purpose, we have proposed a kind of polyphaser selection circuits.
Summary of the invention
The main purpose of the utility model is to provide a kind of polyphaser selection circuits, have gating function, can pass through
The advantages of changing input signal and corresponding camera selected to carry out image transmitting.
To achieve the above object, the utility model provides a kind of polyphaser selection circuit, including camera gates channel, leads to
Road selection circuit, camera image selection circuit, multichannel camera, image amplifier, the first signal output interface and second signal
Output interface, the camera gating channel output end are connect with the channel selection circuit input terminal, the channel selection circuit
Output end and the multichannel camera output end are connect with the camera image selection circuit input terminal respectively, the camera image choosing
It selects circuit output end to connect with described image input amplifier, first signal output interface, the second signal are defeated
Outgoing interface is connect with the output end of described image amplifying circuit.
Preferably, the channel selection circuit includes eight road positive buffers and first capacitor, eight road positive buffering
Device third input pin successively gates the first output pin of channel to the 8th input pin to the 6th output pin with the camera
Connection；The eight roads positive buffer grounding pin, the first strobe pin of the eight roads positive buffer, eight road positive are slow
The second strobe pin of device is rushed to be grounded；First capacitor one end ground connection, the first capacitor other end and eight road positive
Buffer anode pin connects and accesses+5V voltage.
Preferably, the channel selection circuit also includes first or door, second or door, third or door, the 4th or door and
Two capacitors, the 4th output pin of eight roads positive buffer are connect with described first or door first input end, and eight tunnel is just
The 5th output pin of phase buffer is connect with the third or two input terminal of the family status, and described first or two input terminal of the family status, described
Third or door first input end are connect with the 6th output pin of eight roads positive buffer, the eight roads positive buffer
Seven output pins are connect with the described 4th or two input terminal of the family status, and described second or two input terminal of the family status, the described 4th or the family status
One input terminal is connect with the 8th output pin of eight roads positive buffer；Second capacitor one end ground connection, described second
The capacitor other end connect with described second or door and accesses+5V voltage.
Preferably, the camera image selection circuit includes video multiplexer, the video multiplexer first
Input pin is connect with described second or gate output terminal, second input pin of video multiplexer and the third or door
Output end connection, the video multiplexer third input pin are connect with the described 4th or gate output terminal.
Preferably, the camera image selection circuit also include first resistor, second resistance, 3rd resistor, the 4th resistance,
5th resistance, the 6th resistance, the 7th resistance and the 8th resistance, first resistor one end ground connection, the video multiplexer
4th input pin is connect with first output end of first camera, the first resistor other end；Described second resistance one end
Ground connection, the 5th input pin of video multiplexer and first output end of second camera, the second resistance are another
End connection；3rd resistor one end ground connection, the 6th input pin of video multiplexer and the third camera first
Output end, 3rd resistor other end connection；4th resistance one end ground connection, the video multiplexer the 7th input
Pin is connect with the first output end of the 4th camera, the 4th resistance other end；5th resistance one end ground connection is described
The 8th input pin of video multiplexer is connect with the first output end of the 5th camera, the 5th resistance other end；Institute
State the 6th resistance one end ground connection, the 9th input pin of video multiplexer and the first output end of the 6th camera, institute
State the connection of the 6th resistance other end；Described 7th resistance one end, described 8th resistance one end are grounded, and the 7th resistance is another
End and the tenth input pin of video multiplexer, the 8th resistance other end and the video multiplexer the tenth
One input pin.
Preferably, the camera image selection circuit also includes third capacitor and the 4th capacitor, third capacitor one end,
Described 4th capacitor one end is grounded, the third capacitor cathode, the 4th capacitance cathode with the Video Multiplexer
Device grounding pin connect and ground, the third capacitance cathode connect with the video multiplexer anode pin and accesses+
5V voltage, the 4th capacitor cathode connect with the video multiplexer negative pin and access -5V voltage.
Preferably, described image amplifying circuit includes the video amplifier, the 9th resistance, the tenth resistance, eleventh resistor, the
12 resistance, thirteenth resistor, the 14th resistance and the 15th resistance；9th resistance one end ground connection, the 9th resistance
The other end and the video multiplexer output pin, the first input pin of the video amplifier, the video amplifier
The connection of second input pin；Tenth resistance one end ground connection, the tenth resistance other end and described eleventh resistor one end,
The video amplifier third input pin connection；It is the eleventh resistor other end and described twelfth resistor one end, described
The connection of the first output pin of the video amplifier, the twelfth resistor other end are connect with the first signal output interface；Described
13 resistance one end ground connection, the thirteenth resistor other end and described 14th resistance one end, the video amplifier the 4th
Input pin connection, the 14th resistance other end and second output pin of the video amplifier, the 15th resistance
One end connection, the 15th resistance other end are connect with second signal output interface.
Preferably, described image amplifying circuit also includes the 5th capacitor and the 6th capacitor, and the 5th capacitance cathode is grounded,
The 5th capacitor cathode connect with the video amplifier negative pin and accesses -5V voltage, and the 6th capacitor cathode connects
It connects, the 6th capacitance cathode connect with the video amplifier anode pin and accesses+5V voltage.
Preferably, polyphaser selection circuit further includes stabilizing circuit, and the stabilizing circuit includes the 16th resistance, the 17th
Resistance, the 18th resistance, the 19th resistance, the 20th resistance and the 21st resistance；16th resistance one end ground connection, institute
It states the 16th resistance other end to connect with described 17th resistance one end, the second input pin of the eight roads positive buffer, institute
It states the 17th resistance other end to connect with described 18th resistance one end, the second signal output interface, the 18th electricity
Hinder other end ground connection；19th resistance one end ground connection, the 19th resistance other end and described 20th resistance one end,
The connection of the first input pin of the eight roads positive buffer, the 20th resistance other end and the 21st resistance one
End, second signal output interface connection, the 21st resistance other end ground connection.
Preferably, polyphaser selection circuit further includes display circuit, and the display circuit includes the 22nd resistance, second
13 resistance, the 24th resistance, the 25th resistance, the 26th resistance, the 27th resistance, first diode, second
Diode, third diode, the 4th diode, the 5th diode, the 6th diode；Described 22nd resistance one end with it is described
Camera gates the connection of the first output pin of channel, and the 22nd resistance other end is connect with the first diode anode；
Described 23rd resistance one end is connect with camera gating the second output pin of channel, the 23rd resistance other end
It is connect with second diode cathode；Described 24th resistance one end and camera gating channel third output pin connect
It connects, the 24th resistance other end is connect with the third diode cathode；Described 25th resistance one end with it is described
Camera gates the connection of the 4th output pin of channel, and the 25th resistance other end is connect with the 4th diode cathode；
Described 26th resistance one end is connect with camera gating the 5th output pin of channel, the 26th resistance other end
It is connect with the 5th diode cathode；Described 27th resistance one end and camera gating the 6th output pin of channel connect
It connects；The 27th resistance other end is connect with the 6th diode cathode；The first diode cathode, described second
Diode cathode, the third diode cathode, the 4th diode cathode, the 5th diode cathode and the described 6th
Diode cathode is grounded.
Compared with prior art, the utility model has the following beneficial effects: the polyphaser selection circuit of the utility model
Channel the joint passage selection circuit, camera image selection circuit control access specified camera are gated by camera, signal output connects
Picture signal output in specified camera is shown that the polyphaser selection circuit has gating function, can pass through change by mouth
Input signal and select corresponding camera to carry out image transmitting.
Detailed description of the invention
Fig. 1 is the functional structure chart of the polyphaser selection circuit of the utility model.
Fig. 2 is the circuit diagram (including six cameras) of the polyphaser selection circuit of an embodiment of the present invention.
Specific embodiment
To be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, below
In conjunction with specific embodiment, the utility model is further described.
It needs to gate the camera of access in the picture signal transmission process of polyphaser, is just able to achieve selection input in this way
The picture signal of specified camera inputs, and accurately controls to be able to achieve.Fig. 1 is the polyphaser selection circuit of the utility model
100 functional structure chart, as shown in Figure 1, the polyphaser selection circuit 100 of the utility model includes camera gating channel 10, leads to
Road selection circuit 20, camera image selection circuit 30, multichannel camera, image amplifier 50, the first signal output interface 60 and
Second signal output interface 70, camera gating 10 output end of channel are connect with 20 input terminal of channel selection circuit, channel selecting electricity
20 output end of road and multichannel camera output end are connect with 30 input terminal of camera image selection circuit respectively, camera image selection circuit
30 output ends are connect with 50 input terminal of image amplifier, the first signal output interface 60, second signal output interface 70 with
The output end of image amplifier 50 connects.Then, camera gating 10 the joint passage selection circuit 20 of channel, camera image selection electricity
Picture signal in specified camera is exported and is shown by the control of road 30 access specified camera, the first signal output interface 60, the
Picture signal output is monitored by binary signal output interface 70.Wherein, the input direct-current voltage range in camera gating channel 10
For 4.5V-5V.
Fig. 2 is the circuit diagram (including six cameras) of the polyphaser selection circuit 100 of an embodiment of the present invention.Such as figure
Shown in 2, specifically, the relationship between all parts is described in detail: multichannel camera 40 includes the first phase in the present embodiment
Machine J1, second camera J2, third camera J3, the 4th camera J4, the 5th camera J5, the 6th camera J6.
Wherein, channel selection circuit 20 includes eight road positive buffer U1 and first capacitor C1, eight road positive buffers the
Three input pins to the 8th input pin (1A3,1A4,2A1,2A2,2A3,2A4) successively draw with the output of channel first of camera gating
Foot to the 6th output pin (CB1, CB2, CB3, CB4, CB5, CB6) connects；Eight road positive buffer grounding pin GND, eight tunnels
The first strobe pin of positive buffer 1G, eight road the second strobe pin of positive buffer 2G are grounded；First capacitor C1 mono- is terminated
Ground, the first capacitor C1 other end connect with eight road positive buffer anode pin VCC and access+5V voltage.Preferably, eight tunnels are being just
The model 74HC244 of phase buffer U1.Preferably, the capacitance of first capacitor C1 is 0.1F.Wherein, camera gates channel 10
For single strobe, a channel is once only had access.Then, as eight road the first strobe pin of positive buffer 1G, eight road positive buffers
When second strobe pin 2G is low level, all output pins and corresponding all input pins of eight road positive buffer U1
State is identical.For example, eight road positive buffer third input pin 1A3 input high levels, then eight road positive buffer thirds are defeated
Pin 1Y3 exports high level out.
Please continue to refer to Fig. 2, the channel selection circuit 20 of the present embodiment also comprising first or door U4A, second or door U4B,
Third or door U4C, the 4th or door U4D and the second capacitor C2, eight road positive buffers the 4th output pin 1Y4 and first or door
The connection of U4A first input end, the 5th output pin 2Y1 of eight road positive buffers are connect with third or the second input terminal of door U4C, the
The second input terminal of one or door U4A and third or the 6th output pin 2Y2 of eight road positive buffer of door U4C first input end Jun Yu connect
It connects, the 7th output pin 2Y3 of eight road positive buffers is connect with the second input terminal of the 4th or door U4D, and second or door U4B second is defeated
Enter end to connect with the 8th output pin 2Y4 of eight road positive buffer of the 4th or door U4D first input end Jun Yu；Second capacitor C2 mono-
End ground connection, the second capacitor C2 other end connect with second or door U4B and access+5V voltage.
There are two defeated by first or door U4A, second or door U4B, third or door U4C and the 4th or door U4D in the present embodiment
Enter end, an output end, as long as soon as output is high level when having in input terminal for high level；Only when all inputs
When being all low level, output is just low level.Preferably, first or door U4A, second or door U4B, third or door U4C and the 4th
Or the model 74HC32 of door U4D.
Please continue to refer to Fig. 2, the camera image selection circuit 30 of the present embodiment includes video multiplexer U2, and video is more
Path multiplexer the first input pin A0 is connect with second or door U4B output end, video multiplexer the second input pin A1 with
Third or the connection of door U4C output end, video multiplexer third input pin A2 are connect with the 4th or door U4D output end.
Furthermore the camera image selection circuit 30 of the present embodiment also includes first resistor R1, second resistance R2,3rd resistor
R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7 and the 8th resistance R8, first resistor R1 mono- are terminated
Ground, the 4th input pin IN0 of video multiplexer are connect with the first output end of first camera J1, the first resistor R1 other end；
The one end second resistance R2 ground connection, the 5th input pin IN1 of video multiplexer and the first output end of second camera J2, the second electricity
Hinder the connection of the R2 other end；The one end 3rd resistor R3 ground connection, the 6th input pin IN2 of video multiplexer and third camera J3 the
One output end, the connection of the 3rd resistor R3 other end；4th one end resistance R4 ground connection, the 7th input pin of video multiplexer
IN3 is connect with the 4th the first output end of camera J4, the 4th resistance R4 other end；5th one end resistance R5 ground connection, multi-channel video are multiple
It is connect with the 8th input pin IN4 of device with the 5th the first output end of camera J5, the 5th resistance R5 other end；6th one end resistance R6
Ground connection, the 9th input pin IN5 of video multiplexer and the 6th the first output end of camera J6, the 6th resistance R6 other end connect
It connects；7th one end resistance R7, the 8th one end resistance R8 are grounded, and the 7th resistance R7 other end and video multiplexer the tenth are defeated
Enter pin IN6, the 8th resistance R8 other end and the 11st input pin IN7 of video multiplexer.
Preferably, the model MAX455 of video multiplexer U2 has 7 video channels.Video multiplexer
The incoming level of one input pin A0, the second input pin A1 and third input pin A2 determine other video multiplexers U2
The access of input pin, to select the camera of access.Preferably, first resistor R1, second resistance R2,3rd resistor R3,
Four resistance R4, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7 and the 8th resistance R8 are 75 ohm.
Please continue to refer to Fig. 2, the camera image selection circuit 30 of the present embodiment also includes third capacitor C3 and the 4th capacitor
The one end C4, third capacitor C3, the 4th one end capacitor C4 are grounded, and third capacitor C3 cathode, the 4th capacitor C4 anode are and video
Multiplexer grounding pin GND connect and ground, third capacitor C3 anode and video multiplexer anode pin VCC+ connect
+ 5V voltage is connect and accesses, the 4th capacitor C4 cathode connect with video multiplexer negative pin VCC- and accesses -5V voltage.
Preferably, third capacitor C3, the 4th capacitor C4 rated operational voltage range be 10V~25V.
Please continue to refer to Fig. 2, the image amplifier 50 of the present embodiment includes video amplifier U3, the 9th resistance R9, the
Ten resistance R10, eleventh resistor R11, twelfth resistor R12, thirteenth resistor R13, the 14th resistance R14 and the 15th resistance
R15.Specifically, the 9th one end resistance R9 is grounded, the 9th resistance R9 other end and video multiplexer output pin OUT, view
The first input pin of audio amplifier+I1, the video amplifier the second input pin+I2 connection；Tenth one end resistance R10 ground connection, the
The ten resistance R10 other ends are connect with the one end eleventh resistor R11, video amplifier third input pin-I1；Eleventh resistor
The R11 other end is connect with the one end twelfth resistor R12, the first output pin of video amplifier O1, the twelfth resistor R12 other end
It is connect with the first signal output interface 60；The one end thirteenth resistor R13 ground connection, the thirteenth resistor R13 other end and the 14th electricity
The one end R14, the 4th input pin-I2 connection of the video amplifier are hindered, the 14th resistance R14 other end and the video amplifier second are defeated
Pin O2, the connection of the 15th one end resistance R15, the 15th resistance R15 other end are connect with second signal output interface 70 out.It is excellent
Choosing, the model MAX457 of video amplifier U3.Preferably, the 9th resistance R9, the tenth resistance R10, eleventh resistor R11,
Twelfth resistor R12, thirteenth resistor R13, the 14th resistance R14 and the 15th resistance R15 are 1K ohm, the 9th resistance
R9, the tenth resistance R10, eleventh resistor R11, twelfth resistor R12, thirteenth resistor R13, the 14th resistance R14 and the tenth
Five resistance R15 are used to meet the operating voltage of video amplifier U3.
Furthermore the image amplifier 50 of the present embodiment also includes the 5th capacitor C5 and the 6th capacitor C6, the 5th capacitor C5
Plus earth, the 5th capacitor C5 cathode connect with video amplifier U3 negative pin and access -5V voltage, the 6th capacitor C6 cathode
Connection, the 6th capacitor C6 anode connect with video amplifier anode pin+V and access+5V voltage.Preferably, the 5th capacitor C5,
The rated operational voltage range of 6th capacitor C6 is 10V~25V.
Please continue to refer to Fig. 2, the polyphaser selection circuit 100 of the present embodiment further includes stabilizing circuit 80, stabilizing circuit 80
Picture signal is transmitted for stablizing.Stabilizing circuit 80 include the 16th resistance R16, the 17th resistance R17, the 18th resistance R18,
19th resistance R19, the 20th resistance R20 and the 21st resistance R21.Specifically, the 16th one end resistance R16 is grounded, the
The 16 resistance R16 other ends are connect with the 17th one end resistance R17, eight road the second input pin of positive buffer 1A2, and the 17th
The resistance R17 other end is connect with the 18th one end resistance R18, second signal output interface 70, the 18th another termination of resistance R18
Ground；19th one end resistance R19 ground connection, the 19th resistance R19 other end and the 20th one end resistance R20, eight road positives buffer
Device the first input pin 1A1 connection, the 20th resistance R20 other end connect with the 21st one end resistance R21, second signal output
Mouth 70 connects, the 21st resistance R21 other end ground connection.Preferably, the 16th resistance R16, the 19th resistance R19 are the Europe 1K
Nurse, the 17th resistance R17, the 20th resistance R20 are 1 ohm, and the 18th resistance R18, the 21st resistance R21 are 75 Europe
Nurse.
Please continue to refer to Fig. 2, the polyphaser selection circuit 100 of the present embodiment further includes display circuit 90, display circuit 90
Include the 22nd resistance R22, the 23rd resistance R23, the 24th resistance R24, the 25th resistance R25, the 26th
Resistance R26, the 27th resistance R27, first diode D1, the second diode D2, third diode D3, the 4th diode D4,
5th diode D5, the 6th diode D6.Specifically, the 22nd one end resistance R22 is drawn with the output of channel first of camera gating
The connection of foot CB 1, the 22nd resistance R22 other end are connect with first diode D1 anode；23rd one end resistance R23 with
Camera gates the CB2 connection of the second output pin of channel, and the 23rd resistance R23 other end is connect with the second diode D2 anode；
24th one end resistance R24 and camera gating channel third output pin CB3 connects, the 24th resistance R24 other end and
The connection of third diode D3 anode；25th one end resistance R25 is connect with camera gating the 4th output pin CB4 of channel, the
The 25 resistance R25 other ends are connect with the 4th diode D4 anode；26th one end resistance R26 and camera gating channel the
Five output pin CB5 connections, the 26th resistance R26 other end are connect with the 5th diode D5 anode；27th resistance R27
One end is connect with camera gating the 6th output pin CB6 of channel；The 27th resistance R27 other end and the 6th diode D6 anode
Connection；First diode D1 cathode, the second diode D2 cathode, third diode D3 cathode, the 4th diode D4 cathode, the 5th
Diode D5 cathode and the 6th diode D6 cathode are grounded.Wherein, first diode D1, the second diode D2, the three or two pole
It is aobvious that pipe D3, the 4th diode D4, the 5th diode D5 and the 6th diode D6 access progress LED light to corresponding camera respectively
Show, plays suggesting effect.Preferably, the 22nd resistance R22, the 23rd resistance R23, the 24th resistance R24, the 20th
Five resistance R25, the 26th resistance R26, the 27th resistance R27 are 100 ohm.
Furthermore the polyphaser selection circuit 100 of the present embodiment further includes power input interface (not shown), power input
Interface provides power supply for monolith wiring board.
Specific working principle is described in detail for above-mentioned polyphaser selection circuit 100:
Wherein, the output of the eight road positive buffer U1 of input control in camera gating channel 10, is buffered using eight road positives
Device U1 exports input as first or door U4A, second or door U4B, third or door U4C and the 4th or door U4D, and first or door
Channel selecting of the input of U4A, second or door U4B, third or door U4C and the 4th or door U4D as video multiplexer U2
Signal reaches polyphaser gating function with this.The first input pin A0, the second input pin A1 as video multiplexer U2
And third input pin A2 input high level or low level, corresponding phase may be selected according to the level state that three pins export
Corresponding camera acquired image is then transmitted by machine.Further, video amplifier U3 is by video multiplexer U2
The picture signal of transmission is transmitted to vision panels by second signal output interface 70 after amplifying and is shown, while video is put
Big device U3 is also inputted by the first signal output interface 60 after amplifying the video multiplexer U2 picture signal transmitted
It is monitored into monitoring device.
Compared with prior art, the utility model has the following beneficial effects: the polyphaser selection circuit 100 passes through camera
Gate 10 the joint passage selection circuit 20 of channel, the control access specified camera of camera image selection circuit 30, the output of the first signal
Picture signal output in specified camera is shown that the polyphaser selection circuit 100 has gating function, can lead to by interface 60
It crosses change input signal and corresponding camera is selected to carry out image transmitting.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (10)
1. a kind of polyphaser selection circuit, which is characterized in that including camera gating channel, channel selection circuit, camera image choosing
Select circuit, multichannel camera, image amplifier, the first signal output interface and second signal output interface, the camera gating
Channel output end is connect with the channel selection circuit input terminal, and the channel selection circuit output end and the multichannel camera are defeated
Outlet is connect with the camera image selection circuit input terminal respectively, the camera image selection circuit output end and described image
Input amplifier connection, first signal output interface, the second signal output interface amplify with described image
The output end of circuit connects.
2. polyphaser selection circuit according to claim 1, which is characterized in that the channel selection circuit include eight tunnels just
Phase buffer and first capacitor, the eight roads positive buffer third input pin to the 8th input pin successively with the camera
Gating the first output pin of channel to the 6th output pin connects；
The eight roads positive buffer grounding pin, the first strobe pin of the eight roads positive buffer, eight road positive are slow
The second strobe pin of device is rushed to be grounded；
First capacitor one end ground connection, the first capacitor other end are connect simultaneously with the eight roads positive buffer anode pin
Access+5V voltage.
3. polyphaser selection circuit according to claim 2, which is characterized in that the channel selection circuit also includes first
Or door, second or door, third or door, the 4th or door and the second capacitor, the 4th output pin of eight roads positive buffer and institute
State first or the connection of door first input end, the 5th output pin of eight roads positive buffer and the third or the input of the family status two
End connection, described first or two input terminal of the family status, the third or door first input end with the eight roads positive buffer the
The connection of six output pins, the 7th output pin of eight roads positive buffer are connect with the described 4th or two input terminal of the family status, institute
State second or two input terminal of the family status, the described 4th or door first input end with the 8th output pin of eight roads positive buffer
Connection；Second capacitor one end ground connection, the second capacitor other end connect with described second or door and access+5V voltage.
4. polyphaser selection circuit according to claim 3, which is characterized in that the camera image selection circuit includes view
Frequency multiplexer, first input pin of video multiplexer are connect with described second or gate output terminal, the video
The second input pin of multiplexer is connect with the third or gate output terminal, the video multiplexer third input pin
It is connect with the described 4th or gate output terminal.
5. polyphaser selection circuit according to claim 4, which is characterized in that the camera image selection circuit also includes
First resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance and the 8th resistance, it is described
Multichannel camera includes first camera, second camera, third camera, the 4th camera, the 5th camera and the 6th camera, first electricity
Hinder one end ground connection, the 4th input pin of video multiplexer and first output end of first camera, first electricity
Hinder other end connection；Second resistance one end ground connection, the 5th input pin of video multiplexer and second phase
The first output end of machine, second resistance other end connection；Described 3rd resistor one end ground connection, the video multiplexer the
Six input pins are connect with first output end of third camera, the 3rd resistor other end；4th resistance one termination
Ground, the 7th input pin of video multiplexer and the first output end of the 4th camera, the 4th resistance other end
Connection；5th resistance one end ground connection, the 8th input pin of video multiplexer and the 5th camera first are defeated
Outlet, the 5th resistance other end connection；6th resistance one end ground connection, the input of video multiplexer the 9th are drawn
Foot is connect with the first output end of the 6th camera, the 6th resistance other end；Described 7th resistance one end, the 8th electricity
Resistance one end is grounded, the 7th resistance other end and the tenth input pin of video multiplexer, the 8th resistance
The other end and the 11st input pin of video multiplexer.
6. polyphaser selection circuit according to claim 4, which is characterized in that the camera image selection circuit also includes
Third capacitor and the 4th capacitor, third capacitor one end, described 4th capacitor one end are grounded, the third capacitor cathode,
4th capacitance cathode with the video multiplexer grounding pin connect and ground, the third capacitance cathode and institute
It states video multiplexer anode pin and connects and access+5V voltage, the 4th capacitor cathode and the Video Multiplexer
Device negative pin connects and accesses -5V voltage.
7. polyphaser selection circuit according to claim 4, which is characterized in that described image amplifying circuit is put comprising video
Big device, the 9th resistance, the tenth resistance, eleventh resistor, twelfth resistor, thirteenth resistor, the 14th resistance and the 15th electricity
Resistance；
Described 9th resistance one end ground connection is the 9th resistance other end and the video multiplexer output pin, described
The first input pin of the video amplifier, the connection of the second input pin of the video amplifier；
Tenth resistance one end ground connection, the tenth resistance other end and described eleventh resistor one end, the video amplifier
The connection of device third input pin；The eleventh resistor other end and described twelfth resistor one end, the video amplifier the
The connection of one output pin, the twelfth resistor other end are connect with the first signal output interface；
Thirteenth resistor one end ground connection, the thirteenth resistor other end and described 14th resistance one end, the video
The connection of the 4th input pin of amplifier, it is the 14th resistance other end and second output pin of the video amplifier, described
The connection of 15th resistance one end, the 15th resistance other end are connect with second signal output interface.
8. polyphaser selection circuit according to claim 7, which is characterized in that described image amplifying circuit also includes the 5th
Capacitor and the 6th capacitor, the 5th capacitance cathode ground connection, the 5th capacitor cathode and the video amplifier negative pin
- 5V voltage, the 6th capacitor cathode connection are connected and access, the 6th capacitance cathode draws with the video amplifier anode
Foot connects and accesses+5V voltage.
9. polyphaser selection circuit according to claim 2, which is characterized in that it further include stabilizing circuit, the stable electricity
Road includes the 16th resistance, the 17th resistance, the 18th resistance, the 19th resistance, the 20th resistance and the 21st resistance；
16th resistance one end ground connection, the 16th resistance other end and described 17th resistance one end, eight tunnel
The connection of the second input pin of positive buffer, the 17th resistance other end and described 18th resistance one end, described second
Signal output interface connection, the 18th resistance other end ground connection；
19th resistance one end ground connection, the 19th resistance other end and described 20th resistance one end, eight tunnel
The connection of the first input pin of positive buffer, the 20th resistance other end and described 21st resistance one end, described the
The connection of binary signal output interface, the 21st resistance other end ground connection.
10. polyphaser selection circuit according to claim 1, which is characterized in that it further include display circuit, the display electricity
Road includes the 22nd resistance, the 23rd resistance, the 24th resistance, the 25th resistance, the 26th resistance, the 20th
Seven resistance, first diode, the second diode, third diode, the 4th diode, the 5th diode, the 6th diode；
Described 22nd resistance one end is connect with camera gating the first output pin of channel, and the 22nd resistance is another
One end is connect with the first diode anode；Draw with the output of channel second of camera gating described 23rd resistance one end
Foot connection, the 23rd resistance other end are connect with second diode cathode；Described 24th resistance one end with
The camera gating channel third output pin connection, the 24th resistance other end and the third diode cathode connect
It connects；Described 25th resistance one end is connect with camera gating the 4th output pin of channel, and the 25th resistance is another
One end is connect with the 4th diode cathode；Draw with the output of channel the 5th of camera gating described 26th resistance one end
Foot connection, the 26th resistance other end are connect with the 5th diode cathode；Described 27th resistance one end with
Camera gating the 6th output pin of the channel connection；The 27th resistance other end and the 6th diode cathode connect
It connects；The first diode cathode, second diode cathode, the third diode cathode, the 4th diode are negative
Pole, the 5th diode cathode and the 6th diode cathode are grounded.
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| CN201821321653.XU CN208754378U (en) | 2018-08-15 | 2018-08-15 | A kind of polyphaser selection circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112653445A (en) * | 2020-12-03 | 2021-04-13 | 北京博雅慧视智能技术研究院有限公司 | Digital logic circuit and electronic equipment |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112653445A (en) * | 2020-12-03 | 2021-04-13 | 北京博雅慧视智能技术研究院有限公司 | Digital logic circuit and electronic equipment |
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Inventor after: Huo Jinchong Inventor after: Lai Rui Inventor before: Huo Jinchong Inventor before: Zheng Xuliang Inventor before: Sheng Zhifeng Inventor before: Chen Zhurong |
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