CN209570929U - PCI expanding unit - Google Patents
PCI expanding unit Download PDFInfo
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- CN209570929U CN209570929U CN201920593898.6U CN201920593898U CN209570929U CN 209570929 U CN209570929 U CN 209570929U CN 201920593898 U CN201920593898 U CN 201920593898U CN 209570929 U CN209570929 U CN 209570929U
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Abstract
The utility model relates to a kind of PCI expanding units, comprising: pcb board；Main control module is set on pcb board, and main control module is used to carry out signal transmission with host computer, and exports second control signal according to the first control signal of host computer；Ultrasonic wave drive module, is set on pcb board, and ultrasonic wave drive module is used for according to second control signal to ultrasonic transducer output ultrasonic wave driving signal；Pci bus interface is arranged on pcb board, and pci bus interface is for being separately connected main control module and host computer.
Description
Technical field
The utility model relates to control field more particularly to a kind of PCI (Peripheral Component
Interconnect, peripheral component interconnection) expanding unit.
Background technique
In semiconductor packaging, ultrasonic transducer is the core component of semiconductor packaging device.Traditional ultrasound
The driving control system of wave transducer issues control signal by host computer, and control signal passes through parallel port after PCI Mezzanine Card is converted
Cable is transmitted to independent embedded IC driving device, realizes the drive control of ultrasonic transducer.
In practice, utility model people has found that the electromagnetic environment of semiconductor packaging device industry spot is severe, and embedded
Integrated circuit driving device is connect by parallel port cable with PCI Mezzanine Card, and control signal transmission is easy by electromagnetic interference, so that
Ultrasonic transducer drive control is unstable.
Utility model content
Based on this, it is necessary to be easy for control signal transmission in above-mentioned ultrasonic transducer driving control system by electricity
The technical issues of magnetic disturbance, proposes a kind of PCI expanding unit.
The utility model embodiment provides a kind of PCI expanding unit, comprising:
Pcb board, for laying electronic component；
Main control module is set on pcb board, and main control module is used to carry out signal transmission with host computer, and according to host computer
Command signal output control signal；
Ultrasonic wave drive module, is set on pcb board, and ultrasonic wave drive module is used for according to control signal to ultrasonic waves
It can device output ultrasonic wave driving signal；
Pci bus interface is arranged on pcb board, and pci bus interface is used to be separately connected main control module and host computer, with
And it is used for transmission the signal between main control module and host computer.
Pcb board is additionally provided with power amplifier unit and amplifier power supply circuit in one of the embodiments,；
Power amplifier unit is for amplifying ultrasonic wave driving signal；
Amplifier power supply is used to after carrying out external power supply voltage conversion power to power amplifier unit.
PBC plate further includes impedance matching circuit in one of the embodiments, for ultrasonic transducer and power amplifier list
Member carries out impedance matching.
Pcb board is additionally provided with sampling feedback module in one of the embodiments,；
Sampling feedback module is for sampling ultrasonic wave driving signal, and by the comparison of sampled signal and control signal
As a result output is extremely to main control module；
Main control module controls ultrasonic wave drive module according to comparing result and stablizes output ultrasonic wave driving signal.
Sampling feedback module includes sampling unit, reference cell, converting unit and comparison list in one of the embodiments,
Member；
Sampling unit is for sampling ultrasonic wave driving signal, obtaining the first sampled signal and being sent to conversion list
Member；
Reference cell is used to provide conversion reference information to converting unit；
Converting unit converts sampled signal according to conversion reference information, obtains the second sampled signal and adopts second
Sample signal is exported to comparing unit；
Comparing unit is used to for the second sampled signal and control signal being compared, and comparison result is fed back to master control mould
Block.
Main control module includes fpga chip in one of the embodiments,；
Fpga chip, which is used to control ultrasonic wave drive module according to comparison result, stablizes output ultrasonic wave driving signal.
Pcb board is additionally provided with isolated power supply circuit in one of the embodiments, is used for sampling unit, reference cell, turns
Change unit and comparing unit power supply.
Pcb board is additionally provided with BNC coaxial interface in one of the embodiments, and one end of BNC coaxial interface connects ultrasonic wave
Drive module, the other end of BNC coaxial interface is for connecting ultrasonic transducer.
Pcb board is additionally provided with minifit interface in one of the embodiments,；
Amplifier power supply circuit connects external power supply by minifit interface.
Pcb board is equipped with first element area, second element area, third element area and quaternary in one of the embodiments,
Part area；
First element area is equipped with fpga chip, ultrasonic wave driving unit and pci bus interface；
Second element area is adjacent with first element area, and it is coaxial to be equipped with minifit interface, amplifier power supply circuit and BNC
Interface；
Third element area is opposite with first element area, and is equipped with sampling unit, power amplifier unit, impedance matching unit；
Fourth element area is adjacent with first element area and third element area respectively, and is equipped with isolated power supply circuit, benchmark list
Member, comparing unit and converting unit.
Above-mentioned PCI expanding unit is integrated with main control module and ultrasonic wave drive module, passes through pci bus interface and host computer
It is communicatively coupled, not only saves the connecting cable between the independent ultrasonic driving apparatus of tradition and PCI Mezzanine Card, save
Cost；And since the PCI expanding unit of the utility model is directly connect with ultrasonic transducer, structure is simple, and signal passes
Defeated to be not easy to be disturbed, control operation is more stable.
Detailed description of the invention
Fig. 1 is the module frame chart of the utility model one embodiment PCI expanding unit；
Fig. 2 is the module frame chart of another embodiment of the utility model PCI expanding unit；
Fig. 3 is the module frame chart of another embodiment of the utility model PCI expanding unit；
Fig. 4 is the component placement figure of the utility model one embodiment PCI expanding unit.
Specific embodiment
The purpose of this utility model, technical solution and technical effect in order to better understand, below in conjunction with attached drawing and reality
It applies example and further explaining illustration is carried out to the utility model.It states simultaneously, embodiments described below is only used for explaining this reality
With novel, it is not used to limit the utility model.
As shown in Figure 1, the utility model embodiment provides a kind of PCI expanding unit, including 1 (Printed of pcb board
Circuit Board, printed circuit board), main control module, ultrasonic wave drive module 3 and pci bus interface 4.
Wherein, pcb board 1, which is used to provide for electronic component, lays space.Pcb board 1 is equipped with printed circuit board wiring, printing electricity
Road wiring is for connecting each electronic component being arranged on pcb board 1.Optionally, pcb board 1 can use lamina, i.e.,
Pcb board 1 one layer printed circuit of laying wiring, wherein one side of the electronic component concentrated setting in pcb board 1.Optionally, PCB
Plate 1 can also use doubling plate, i.e. lay two layers of printed circuit board wiring on PCB, electronic component can be with concentrated setting in pcb board
1 wherein one side, can also all be arranged electronic component on the two sides of pcb board 1 according to actual conditions.Certainly, pcb board 1 can also be with
Using multi-layer board, i.e. pcb board 1 is laid with two layers or more of printed circuit board wiring, can increase layout area in this way, improves device
Integrated level.
Main control module is arranged on pcb board 1, and main control module is used to carry out signal transmission with host computer 5, and according to host computer
5 first control signal issues second control signal.First control signal controls main control module for host computer, and second
Control signal controls ultrasonic wave drive module for main control module.Main control module can be with information processing capability
Operational blocks which partition system, optionally, main control module can be microprocessor, be also possible to FPGA (Field-Programmable Gate
Array, field programmable gate array), it can also be PLC (Programmable Logic Controller, programmable logic
Controller) etc..As long as can communicate with host computer 5, and control signal is exported to ultrasonic wave drive module 3.
Host computer 5 is the arbitrary equipment that control command is directly issued to main control module for being communicated with main control module,
For example, host computer 5 can be industrial personal computer, it is also possible to PC, can also be that mobile terminal of mobile telephone etc. controls equipment.
Pci bus interface 4 is arranged on pcb board 1, is the local parallel bus interface of external components interconnection, for connecting
Main control module and host computer 5 realize signal transmission and data exchange between main control module and host computer 5.Optionally, In
The golden finger to match with PCI slot on host computer 5 is set on pcb board 1, and golden finger is electrically connected with the main control module on pcb board 1
It connects, forms pci bus interface 4, realize the communication between host computer 5 and main control module.
Ultrasonic wave drive module 3 is the circuit for generating ultrasonic wave driving signal, and ultrasonic wave drive module 3 is for connecting
The electric energy of mains frequency is converted to high-frequency signal and exported to ultrasonic transducer 6, to drive ultrasonic wave by ultrasonic transducer 6
Energy converter 6 issues ultrasonic wave.
Ultrasonic transducer 6 is the equipment for generating ultrasonic wave, the electrical power of input can be converted into mechanical output
(i.e. ultrasonic wave) passes again.Optionally, ultrasonic transducer 6 can be PZT (piezoelectric transducer), is also possible to magnetostriction and changes
Energy device, can be electrostatic capacity type energy converter, is also possible to electromagnetic sound transducer, can also be mechanical type ultrasonic transducer etc..
In traditional 6 actuation techniques of ultrasonic transducer, after host computer 5 is connect with PCI Mezzanine Card, the instruction of output is passed through
Cross PCI Mezzanine Card conversion, it is also necessary to ultrasonic transducer 6 could be driven to work by independent drive dynamic control device, and driven
Control device is connect with PCI Mezzanine Card by parallel port cable, and not only connection is complicated, but also controls transmitting by simultaneously mouth line for signal
It is easy to be interfered.And PCI expanding unit provided in this embodiment, main control module and ultrasonic wave drive module 3 are integrated in one
It on block pcb board 1, is communicatively coupled by pci bus interface 4 and host computer 5, structure is simple, does not need independent ultrasonic wave
Driving device drives ultrasonic transducer 6, but is directly driven to ultrasonic transducer 6 by PCI expanding unit
It is dynamic, thus the coupling part of parallel port cable is eliminated, hardware cost is not only saved, the anti-interference energy of signal transmission is also improved
Power controls and operates all more stable.
PCI expanding unit further includes power amplifier unit 71 and amplifier power supply circuit 72, power amplifier list in one of the embodiments,
Member 71 and amplifier power supply circuit 72 are arranged on pcb board 1.Power amplifier unit 71 is used to amplify ultrasonic wave driving signal,
And export amplified ultrasonic wave driving signal to ultrasonic transducer 6, to drive ultrasonic transducer 6.Power amplifier unit 71
It can be any circuit that signal can be amplified to realize power output, for example, power amplifier unit 71 can be power amplification collection
At chip, it is also possible to triode, can also be the set of multistage amplifier circuit, as long as can be realized the amplification output to signal
.Amplifier power supply circuit 72 is that any circuit for the power supply that matches is provided for power amplifier.Amplifier power supply circuit 72 is by external power supply 8
Electric current and voltage be converted to and match with the operating voltage of power amplifier unit 71 and electric current so that power amplifier unit 71 can work and
Ultrasonic wave driving signal is amplified.
In traditional 6 drive system of ultrasonic transducer, power amplifier unit 71 plays amplification as to driving signal
Circuit is set to the transmission end of ultrasonic wave driving signal, is easy for amplifying the interference signal in transmission process in this way,
So that the control of ultrasonic transducer 6 is not sufficiently stable.In the present embodiment, power amplifier unit 71 is arranged jointly with driving circuit
In PCI expanding unit, power amplification is carried out when to 6 output ultrasonic wave driving signal of ultrasonic transducer, it can be to avoid
Amplification to interference signal improves the stability of control to improve signal-to-noise ratio.
Pcb board 1 is additionally provided with impedance matching circuit in one of the embodiments,.Impedance matching circuit is used to pass in signal
Specific matching relationship during defeated between matched load impedance and information source internal impedance, i.e., for matching ultrasonic wave drive module 3
Matching relationship between 6 impedance of total internal resistance and ultrasonic transducer of power amplifier unit 71.When total internal resistance and ultrasonic transducer 6
Impedance matches, i.e., impedance matching when, the transmission loss of ultrasonic wave driving signal is minimum, all ultrasonic waves of the energy of carrying
Energy device 6 is absorbed, so that 6 power output of ultrasonic transducer maximizes.If impedance mismatching, the transmission of ultrasonic wave driving signal
It will appear signal reflex in the process, to bring transmission loss, reduce efficiency of transmission or to transmit distorted signals.
Sampling feedback module 74 is additionally provided on pcb board 1 in one of the embodiments,.Sampling feedback module 74 for pair
Ultrasonic wave driving signal is sampled, and sampled signal is fed back to main control module.Since the input of control signal may be unstable
Fixed, the output of ultrasonic wave driving signal can also show unstable state therewith, for example, control signal it is unstable will lead to it is defeated
Power is unstable out, so that the vibration that ultrasonic transducer 6 is converted into mechanical energy is irregular；For another example, ultrasonic transducer 6
It may not be able to work in resonant frequency point, thus its working efficiency can not be made to maximize.Therefore utility model the present embodiment is taken
The mode of sampling feedback module 74 is set on pcb board 1, ultrasonic wave driving signal is sampled, when ultrasonic wave driving signal
Output power it is unstable when, the sample information of ultrasonic wave driving signal is fed back to main control module 2 by sampling feedback module 74, main
Control 2 pairs of control signals of module are adjusted, so that ultrasonic wave driving signal drives ultrasonic waves not with stable state is showed
It can the stable output of device 6.Optionally, when 6 working frequency off-resonance Frequency point of ultrasonic transducer, sampling feedback mould can be taken
Block 74 carries out frequency sampling to ultrasonic transducer 6, provides frequency-tracking signal, main control module 2 is according to frequency-tracking signal tune
Whole control signal controls ultrasonic wave driving signal always at the resonance point of ultrasonic transducer 6, so that ultrasonic transducer 6
Optimum state is worked in always, i.e. working frequency is in resonant frequency point.Optionally, according to actual needs, sampling feedback module
74 can use power samples feedback module 74, can also use phase demodulation sampling feedback module 74.Power samples feedback module 74
The power of ultrasonic wave driving signal is sampled, for realizing power control.Phase demodulation sampling feedback module 74 drives ultrasonic wave
The phase-frequency characteristic of dynamic signal is sampled, for realizing phase demodulation control.
Optionally, sampling feedback module 74 may include sampling unit 744, reference cell 743, converting unit 742 and
Comparing unit 741.Wherein, for sampling unit 744 for sampling to ultrasonic wave driving signal, ultrasonic wave driving signal is simulation
Signal, thus sampling unit 744 ultrasonic wave driving signal is sampled after carry out the first analog-to-digital conversion, obtain the first sampling letter
Number, and the first sampled signal is exported to converting unit 742.Since ultrasonic wave driving signal includes two kinds of control signals,
Ultrasonic wave driving signal is sampled using two-way sampling unit 744.
Reference cell 743 provides conversion reference information to converting unit 742.Converting unit 742 is according to conversion reference information
First sampled signal is converted, obtains the second sampled signal corresponding with second control signal, and the second sampling is believed
Number output is to comparing unit 741.Wherein, the second sampled signal with second control signal for being compared.Optionally, conversion is single
Member 742 may include conditioning circuit and conversion circuit, and conditioning circuit improves the first sampled signal, such as filtering adjusting,
Level adjustment etc., and by the first sampled signal output valve conversion circuit after conditioning, conversion circuit is according to reference information to conditioning
The first sampled signal afterwards is converted, and the second sampled signal is obtained.Optionally, conversion circuit can be using analog-to-digital conversion electricity
Road.Second sampled signal and control signal are compared by comparing unit 741, obtain comparison result, and comparison result is fed back
To main control module 2.At this point, main control module 2 is adjusted control signal according to feedback result, to control ultrasonic wave driving letter
Number stablize output.For example, main control module 2 is adjusted if the output power of comparison result feedback ultrasonic wave driving signal is unstable
The stability for controlling signal, to control the stabilization of ultrasonic wave driving signal output power.It is driven if comparison result feeds back ultrasonic wave
The driving frequency of dynamic signal and the resonance frequency of ultrasonic transducer 6 are inconsistent, and main control module 2 then adjusts the control of control signal
Frequency spectrum realizes maximal efficiency work to realize that ultrasonic wave driving signal can drive the work of ultrasonic transducer 6 in resonance frequency
Make.
Main control module 2 includes fpga chip 21 in one of the embodiments,.Fpga chip 21 is field-programmable gate array
Column, the first input end of fpga chip 21 with host computer 5 for connecting, for receiving the first control signal of host computer 5, FPGA
The output end of the second input terminal connection comparing unit 741 of chip 21, for receiving the comparison result of the feedback of comparing unit 741,
The input terminal of the output end connection ultrasonic wave drive module 3 of FPGA, for believing to second control of the output of ultrasonic wave drive module 3
Number, so that ultrasonic wave drive module 3 drives ultrasonic transducer 6.
Pcb board 1 is additionally provided with isolated power supply circuit 91 in one of the embodiments,.Isolated power supply circuit 91 is can to incite somebody to action
Power input circuit and output loop carry out the unit of electrical isolation arbitrarily powered.Isolated power supply circuit 91 is output and input
Between be insulation high-impedance state, be not present current loop.Optionally, isolated power supply circuit 91 can use flyback transformer.
Isolated power supply circuit 91 is for converting external power supply 8, and to sampling unit 744, reference cell 743, converting unit 742
And comparing unit 741 provides corresponding power voltage supply.Optionally, isolated power supply includes main coil and secondary coil, main coil
It is matched with secondary coil and exports the voltage of external power supply 8 outward with preset voltage by being converted to.Wherein main coil connects
External power supply 8, bears 8 voltage of external power supply, and secondary coil connection load is solely subjected to the low alternating voltage of output, and primary and secondary
It is not directly coupled between coil, to realize the isolation between outputting and inputting.
Pcb board 1 is additionally provided with BNC (Bayonet Nut Connector, the connection of bayonet nut in one of the embodiments,
Device) coaxial interface.BNC coaxial interface 93 is a kind of connector for coaxial cable, can completely cut off interfering with each other between signal,
To improve the signal-to-noise ratio of signal transmission.One end of BNC coaxial interface 93 connects ultrasonic wave drive module 3, and the other end is for connecting
Connect ultrasonic transducer 6.Optionally, one end of BNC coaxial interface 93 connects power amplifier unit 71 in one of the embodiments,
For the other end for connecting ultrasonic transducer 6, amplified ultrasonic wave driving signal is transmitted to ultrasonic wave by BNC coaxial interface 93
Energy converter 6 is to drive ultrasonic transducer 6 to work.
Minifit interface (mini adaptable interface) is additionally provided on pcb board 1 in one of the embodiments,.Minifit connects
Mouth is the isolation interface for connecting external power supply 8, and one end of minifit interface connects the input terminal of amplifier power supply circuit 72,
The other end of minifit interface is for connecting external power supply 8.Minifit interface has band isolation terminal, pressure locking and low knot
The polarization shell of resultant force can prevent connection from leaking electricity and surprisingly extracting, the accident of accidental shock is avoided to occur.
Power amplifier unit 71 is additionally provided with radiator in one of the embodiments, for radiating to power amplifier unit 71.It can
Selection of land, radiator can carry out natural air cooled heat dissipation to power amplifier unit 71 using low RCS thermal resistance, the aluminium radiator fin of technical grade.It can
Selection of land, power amplifier unit 71 are horizontally fixed on cooling fin, and cooling fin is fixed on pcb board 1 by copper post.In this way, power amplifier unit
71 can securely and reliably work under maximum service rating state, meanwhile, cooling fin is fixed on pcb board 1, occupies volume
It is small, it not will increase the overall dimensions of PCI expanding unit, when so that PCI expanding unit being mounted on host computer 5, will not interfere with
Other boards in the machine 5 of position.
Board baffle is additionally provided on pcb board 1 in one of the embodiments,.Board baffle is for determining pcb board 1
Position, while can be dust-proof to being carried out on pcb board 1, prevent the electronic component inside PCB from being damaged by dust electrostatic interference.
Pcb board 1 is additionally provided with Ethernet interface in one of the embodiments, and Ethernet interface one end connects FPGA, another
End connection external equipment.Communications of the Ethernet interface between FPGA and external equipment.Optionally, Ethernet interface can use
Gigabit Ethernet RJ45 interface 92.
Jtag interface is additionally provided on pcb board 1 in one of the embodiments, one end of jtag interface connects fpga chip
21, the other end is for connecting commissioning device.Jtag interface is transmitted for the signal between fpga chip 21 and commissioning device, so that
Commissioning device debugs fpga chip 21.
Core power circuit is additionally provided on pcb board 1 in one of the embodiments, core power circuit is used for outside
Power supply 8 is powered after carrying out voltage conversion to the kernel of FPGA.
Optionally, MOLEX 4pin male connector socket is additionally provided on PCB, for spare to Function Extension.
The surface of pcb board 1 is equipped with first element area 100 and second along first direction relatively in one of the embodiments,
Element region 200, the surface of pcb board 1 is opposite in a second direction to be equipped with third element area 300 and fourth element area 400.
Fpga chip 21, ultrasonic wave driving unit and pci bus interface 4 are equipped in first element area 100.At second yuan
Part area 200 is equipped with sampling unit 744, power amplifier unit 71, impedance matching unit simultaneously.It is connect in third element area 300 equipped with minifit
Mouth, amplifier power supply circuit 72 and BNC coaxial interface 93.Isolated power supply circuit 91, reference cell are equipped in fourth element area 400
743, comparing unit 741 and converting unit 742.The above component placement can be such that each component lays along signal flow, not allow
It is also easy to produce cross wire or the wiring that detours, therefore can be avoided the interference between unlike signal.Meanwhile this layout type energy
Enough shorten the cable run distance between each component, reduces the interference being subject in signals transmission.Optionally, first direction and
Second direction is vertical.Optionally, first element area 100, second element area 200, third element area 300 and fourth element area
400 be the gross area of pcb board along the sum of the area of the setting of the edge of pcb board and each element region, to maximally utilize PCB
The area of plate.
Optionally, first element area 100 is additionally provided with core power circuit and MOLEX 4pin male connector socket.Second element area
200 are additionally provided with cooling fin and jtag interface.Third element area 300 is also by gigabit Ethernet RJ45 interface 92 and baffle baffle.
Optionally, the size of pcb board 1 is 193 millimeters of field, 109 millimeters wide.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (10)
1. a kind of PCI expanding unit characterized by comprising
Pcb board；
Main control module is set on the pcb board, and the main control module is used to carry out signal transmission with host computer, and according to institute
State the first control signal output second control signal of host computer；
Ultrasonic wave drive module is set on the pcb board, and the ultrasonic wave drive module is used to be believed according to second control
Number to ultrasonic transducer output ultrasonic wave driving signal；
Pci bus interface is arranged on the pcb board, and the pci bus interface is for being separately connected the main control module and institute
State host computer.
2. PCI expanding unit according to claim 1, which is characterized in that the pcb board is additionally provided with power amplifier unit and power amplifier
Power circuit；
The power amplifier unit is believed for amplifying to the ultrasonic wave driving signal, and by the amplified ultrasonic wave driving
Number output is to the ultrasonic transducer；
The amplifier power supply is used to after carrying out external power supply voltage conversion power to the power amplifier unit.
3. PCI expanding unit according to claim 2, which is characterized in that the pcb board is additionally provided with impedance matching circuit,
For carrying out impedance matching to the ultrasonic transducer and the power amplifier unit.
4. PCI expanding unit according to claim 3, which is characterized in that the pcb board is additionally provided with sampling feedback module；
The sampling feedback module is controlled for sampling to the ultrasonic wave driving signal, and by sampled signal and described second
The comparing result of signal processed is exported to the main control module；
The main control module controls the ultrasonic wave drive module according to the comparing result and stablizes the output ultrasonic wave driving
Signal.
5. PCI expanding unit according to claim 4, which is characterized in that the sampling feedback module include sampling unit,
Reference cell, converting unit and comparing unit；
The sampling unit is for sampling the ultrasonic wave driving signal, obtaining the first sampled signal and exporting to described
Converting unit；
The reference cell is used to provide conversion reference information to the converting unit；
The converting unit converts first sampled signal according to the conversion reference information, obtains the second sampling letter
Number and second sampled signal is exported to the comparing unit；
The comparing unit is for second sampled signal and the second control signal to be compared, and by comparison result
Feed back to the main control module.
6. PCI expanding unit according to claim 5, which is characterized in that the main control module includes fpga chip.
7. PCI expanding unit according to claim 6, which is characterized in that the pcb board is additionally provided with isolated power supply circuit,
The isolated power supply circuit is used to carry out the external power supply conversion and to the sampling unit, reference cell, converting unit
It powers with comparing unit.
8. PCI expanding unit according to claim 7, which is characterized in that the pcb board is additionally provided with BNC coaxial interface, institute
The one end for stating BNC coaxial interface connects the ultrasonic wave drive module, and the other end of the BNC coaxial interface is described for connecting
Ultrasonic transducer.
9. PCI expanding unit according to claim 8, which is characterized in that the pcb board is additionally provided with minifit interface；
One end of the minifit interface connects the amplifier power supply circuit, and the other end of the minifit interface is for connecting
The external power supply.
10. PCI expanding unit according to claim 9, which is characterized in that the surface of the pcb board is along first direction phase
To first element area and second element area is equipped with, the surface is opposite in a second direction to be equipped with third element area and fourth element
Area；
The first element area is equipped with the fpga chip, the ultrasonic wave driving unit and the pci bus interface；
The second element area is equipped with the sampling unit, the power amplifier unit, the impedance matching unit simultaneously；
The third element area is equipped with the minifit interface, the amplifier power supply circuit and the BNC coaxial interface；
The fourth element area is equipped with the isolated power supply circuit, the reference cell, the comparing unit and the conversion
Unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920593898.6U CN209570929U (en) | 2019-04-26 | 2019-04-26 | PCI expanding unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920593898.6U CN209570929U (en) | 2019-04-26 | 2019-04-26 | PCI expanding unit |
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| Publication Number | Publication Date |
|---|---|
| CN209570929U true CN209570929U (en) | 2019-11-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109992553A (en) * | 2019-04-26 | 2019-07-09 | 广东阿达智能装备有限公司 | PCI expanding unit |
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2019
- 2019-04-26 CN CN201920593898.6U patent/CN209570929U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109992553A (en) * | 2019-04-26 | 2019-07-09 | 广东阿达智能装备有限公司 | PCI expanding unit |
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