CN206140005U - Laser cutting machine circuit is used in metal sheet cutting - Google Patents
Laser cutting machine circuit is used in metal sheet cutting Download PDFInfo
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- CN206140005U CN206140005U CN201621218441.XU CN201621218441U CN206140005U CN 206140005 U CN206140005 U CN 206140005U CN 201621218441 U CN201621218441 U CN 201621218441U CN 206140005 U CN206140005 U CN 206140005U
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Abstract
The utility model discloses a laser cutting machine circuit is used in metal sheet cutting is provided with interconnect's first processor circuit and second processor circuit, be provided with second processor IC2, LCD, DA modulate circuit, PWM input detection circuitry and clock circuit in the second processor circuit, be provided with interconnect's an operational circuit and the 2nd operational circuit in the DA modulate circuit, be provided with potentiometre W3, electric capacity C2, resistance R2, resistance R7, electric capacity C1, electric capacity C5, electric capacity C6, potentiometre W1, resistance R9 and operational amplifier chip U1 in an operational circuit, the DA modulate circuit that utilizes two -stage operational circuit to build can be analog signal with the data signal conversion that has second processor IC2 to export to supply with the first processor circuit and use, adopt simple circuit structure design, have use cost and hang down characteristics such as security height.
Description
Technical field
This utility model is related to the fields such as metal material production technology, specifically, is a kind of metallic plate cutting laser
Cutter circuit.
Background technology
Metal is that one kind has gloss (i.e. to visible ray strong reflection), is rich in the properties such as ductility, easy conduction, heat conduction
Material.It is relevant that the above-mentioned speciality of metal is all contained within free electron with metallic crystal.In nature, most metals with
Compound state is present, and a few metals such as gold, platinum, silver, bismuth are present with free state.Metalliferous mineral majority is oxide and sulfide.
Other existence forms have chloride, sulfate, carbonate and silicate.Link between metal is metallic bond, therefore arbitrarily more
Change place all can re-establish link again, and this is also the reason for metal ductility is good.Metallic element is usual in compound
Aobvious nominal price.What relative atomic mass was larger is referred to as heavy metal.
As the electronics tendency of metal departs from, therefore with good electric conductivity, and metallic element is usual in compound
Band nominal price electricity, but when temperature is higher, because receive nuclear heat shock hindering, resistance will become big.Metallic molecule it
Between link be metallic bond, therefore arbitrarily change position and all can re-establish link again, this is also the good original of metal extensibility
Cause.
In nature, most metals are present with compound state, and a few metals such as gold, silver, platinum, bismuth are deposited with free state
.Metalliferous mineral majority is oxide and sulfide, and other existence forms have chloride, sulfate, carbonate and silicate.
The material for belonging to metal has gold, silver, copper, ferrum, manganese, zinc etc..Under the room temperature of an atmospheric pressure and 25 degrees Celsius, the removal of mercury
(liquid) outward, other metals are all solids.Most simple metal is silvery white (ash) color, and only minority is not that such as gold is yellow red
Color, copper are aubergine.Band " Jin " is other mostly for metal.
It is metal generally by the Material Definitions with positive temperature resistance coefficient.Use containing the element that element is planted in 112
In periodic chart, totally 90 kinds of metallic element.Positioned at the lower left of " boron-astatine demarcation line ", in 5 regions such as s areas, p areas, d areas, f areas
There is metallic element, transition elements are entirely metallic element.
In solid metallic conductor, there are many moveable free electrons.Although these electronics do not fetter any spy of what
Determine atom, but all fetter in the lattice of what metal；Even under no External Electrical Field, because heat energy, these electronics are still
Randomly can move.But, in conductor, average net current is zero.Arbitrary section inside wire is selected, is spaced at any time
It is interior, the number of electrons of another side is moved on to from section, move past the number in section equal to opposite direction.
Metal manufactures (smithcraft), is a kind of Technology for metalliferous material being processed into article, part, component,
Include the heavy parts of bridge, steamer etc., or even the trickle component of engine, jewelry, watch.It is widely used in science,
The different field such as industry, the art work, handicraft.
The processing and forming of metal material is divided into cold working (machining, cold rolling, cold forging, punching press etc.) by its feature and heat adds
Work (casting, hot bundle, forging, welding, heat treatment etc.).
By technique point：
1st, deformation processing：
(1) plastic forming processing：
Plasticity (molding) processing to be referred to and make metal plastic deformation under stress using mould under high-temperature heating.
(2) solid forming processing：
Solid forming is processed：Refer to used raw material be some can carry out under normal temperature condition moulding bonding jumper,
Piece and other solid forms.Processing cost input can with relative moderate some.
(3) pressure processing：
Using metal plastic deformation produced under external force, obtain with definite shape, size and mechanicalness
The production method of the raw material, blank or part of energy, referred to as pressure processing.
The basic mode of pressure processing：Forging, sheet-metal press working, rolling, extruding, drawing.
(4) powder metallurgy：
Powder metallurgy is a kind of can to process the technique that ferrous metal element can also process non-ferrous metal element, including will close
Bronze end mixing and by mixture, two basic working procedures of press-in die.Metallic particles is through high-temperature heating sinter molding.It is this
Technique does not need machining, utilization rate of raw materials reach 97%.Different metal dusts can be used for filling mould
Different piece.
2nd, machining：
Manufacture size, shape, position accuracy demand are higher, the thinner part of surface roughness, generally using machining
Method.
Metal Cutting Machine Tool is exactly the equipment for carrying out machining using cutter to metal blank, often referred to simply as lathe.
3rd, grinding：
The processing method that material is removed using abrasive material, is generally classified by tool types, can be divided into and use bonded-abrasive
Process and use free two big class of abrasive machining.
Usually said grinding refers mainly to the process of materials processing is removed with emery wheel or abrasive band, and it is to be widely used
High-efficiency and precision final processing method.
4th, weld, be a kind of process of permanent connection metal material.The essence of welding process is with heating or adds
The means such as pressure, the combination and diffusion by means of metallic atom is that detached metal material is firmly coupled, and divides molten
Change weldering, Pressure Welding, soldering three major types.
5th, it is surface-treated：
Heat treatment is under certain conditions, to the certain heating of metal and cooling, to make metal obtain certain mechanicalness
The process of energy or chemical property.Metal parts carries out the main purpose of heat treatment：
Improve hardness, intensity and increase wearability；
Hardness is reduced, is easy to machining；
Caused internal stress in the elimination course of processing；
Improve surface abrasion resistance, corrosion resisting property.
Utility model content
The purpose of this utility model is to provide a kind of metallic plate cutting laser cutting machine circuit, using two stage amplifer electricity
The DA modulate circuits that road is built, can be by the digital signal for having second processing device IC2 to be exported conversion in analogue signal, to supply
Used to first processor circuit, using simple circuit structure design, low with use cost, the spy such as safety height
Point.
This utility model is achieved through the following technical solutions：Laser cutting machine circuit is used in a kind of metallic plate cutting, is provided with
The first processor circuit being connected with each other and second processing device circuit；Second processing is provided with the second processing device circuit
Device IC2, liquid crystal display, DA modulate circuits, PWM input detecting circuits and clock circuit, the first processor circuit difference
Connection second processing device IC2 and DA modulate circuit, DA modulate circuits are connected with second processing device IC2, second processing device IC2 point
It is not connected with liquid crystal display, PWM input detecting circuits and clock circuit；It is provided with the DA modulate circuits and is connected with each other
The first discharge circuit and the second discharge circuit, potentiometer W3, electric capacity C2, resistance R2, electricity are provided with the first discharge circuit
Resistance R7, electric capacity C1, electric capacity C5, electric capacity C6, potentiometer W1, resistance R9 and amplifier chip U1,7 feet of amplifier chip U1 pass through
Electric capacity C5 is connected with 3 feet of amplifier chip U1, and 1 foot of amplifier chip U1 connects 5 feet of amplifier chip U1 by potentiometer W1,
And the adjustable end of potentiometer W1 connects 7 feet of amplifier chip U1 by resistance R9；4 feet of amplifier chip U1 are by electric capacity C6 and fortune
3 feet for putting chip U1 are connected and are grounded；The P0.0/IDAC0 feet of the second processing device IC2 connect amplifier by potentiometer W3
2 feet of chip U1, and the adjustable end of potentiometer W3 is connected with arbitrary fixing end of potentiometer W3；2 feet of amplifier chip U1 connect
Second end of electric capacity C1 is connect, the first end of electric capacity C1 is connected with the second end of the first end and resistance R2 of resistance R7 respectively, electricity
The second end ground connection of resistance R7, the first end of resistance R2 are grounded by electric capacity C2, and 6 feet of amplifier chip U1 and the second amplifier are electric
Road is connected；Preferred amplifier chip U1 adopts μ A741 operational amplifiers, μ A741 operational amplifiers, fairchild company of the U.S.
(fairchild) invent, be first piece of integrated operational amplifier in the world, be widely current in the later stage sixties in last century, until
Today, μ A741 amplifiers were still the typical components and parts of explanation amplifier principle in electronics subject.μ A741 are high-performance, interior compensation operation
Amplifier, it is low in energy consumption, compensate without the need for foreign frequency, with short-circuit protection and offset voltage zeroing ability, in use be not in
Latch phenomenon, can be used as integrator, summing amplifier and common feedback amplifier, on 7 feet of amplifier chip U1 be connected to positive electricity
Source, is connected to negative supply on 4 feet of amplifier chip U1.
Further is that this utility model is better achieved, especially using following setting structures：In second amplifier electricity
Amplifier chip U2, resistance R8, resistance R5, electric capacity C4, electric capacity C3, electric capacity C7, electric capacity C8, resistance R10, potentiometer are provided with road
W2, resistance R6 and resistance R4, one end of resistance R4 connect 6 feet of amplifier chip U1, and the other end of resistance R4 is by resistance R6 point
It is not connected with the second end of 2 feet and electric capacity C3 of amplifier chip U2, second end of electric capacity C3 first end respectively with resistance R5
It is connected with the first end of resistance R8, the second end ground connection of resistance R8, second end of resistance R5 is grounded by electric capacity C4；Amplifier core
7 feet of piece U2 connect 3 feet and the ground connection of amplifier chip U2 by electric capacity C7, connect current potential between 1 foot and 5 feet of amplifier chip U2
Device W2, and the adjustable end of potentiometer W2 connects 7 feet of amplifier chip U2 by resistance R10,4 feet of amplifier chip U2 pass through electric capacity
C8 is grounded, and 6 feet of amplifier chip U2 are connected with first processor circuit；Preferred amplifier chip U2 is transported using μ A741
Amplifier is calculated, and positive supply is connected on 7 feet of amplifier chip U2, is connected to negative supply on 4 feet of amplifier chip U2.
Further is that this utility model is better achieved, especially using following setting structures：The first processor electricity
First processor IC1, sensor circuit, relay circuit, IGBT, laser equipment and comparator, the sensing are provided with road
Device circuit connects first processor IC1, first processor IC1 connection relay circuits, laser equipment respectively with IGBT and compare
Device is connected, and IGBT connection first processor IC1, first processor IC1 are also connected with comparator, comparator connection amplifier core
6 feet of piece U2, first processor IC1 connection second processing device IC2；First processor IC1 major functions include high frequency clock
Transmission of frequency dividing, the gating control of analog switch, the detection of encoder pulse, external feedback and data etc..
Further is that this utility model is better achieved, and when occurring, temperature is too high or cutting position skew lamp shadow rings and produces into
During the situation of quality, can timely be reminded, be specifically arranged to following structures：Go back in the first processor circuit
Warning circuit and feedback circuit are provided with, the warning circuit and feedback circuit are all connected with first processor IC1.
Further is that this utility model is better achieved, and in real time the operational temperature information of laser equipment can be carried out
Collection, and the distance between laser equipment and workpiece are reacted in time, especially using following setting structures：In the sensor circuit
It is provided with the temperature sensor and range sensor being connected with first processor IC1 respectively.
Further is that this utility model is better achieved, especially using following setting structures：In the second processing device
It is additionally provided with the external memory storage being connected with second processing device IC2 in circuit, the external memory storage includes SD card and random
Memorizer, and random access memory is dynamic RAM or/and dynamic RAM.
Further is that this utility model is better achieved, especially using following setting structures：Also include and described second
The host computer that processor IC2 is connected, host computer can be used in carrying out backstage management and control or remote-control to laser cutting machine.
Further is that this utility model is better achieved, especially using following setting structures：Also include respectively to first
The power circuit that processor circuit and second processing device circuit are powered, the power circuit include respectively with first processor IC1
The resonant switching power system being connected with second processing device IC2, is also associated with exchange on the resonant switching power system
Electric power system.
Further is that this utility model is better achieved, especially using following setting structures：The first processor IC1
The processor chips for adopting are serial for Spartan-7FPGA.
Further is that this utility model is better achieved, especially using following setting structures：The second processing device IC2
The processor chips for adopting are STM32F3 series monolithics.
This utility model compared with prior art, with advantages below and beneficial effect：
The DA modulate circuits that this utility model is built using two stage amplifer circuit, can will have second processing device IC2 institutes defeated
The digital signal conversion for going out is used to supply first processor circuit, using simple circuit structure in analogue signal
Design, it is low with use cost, the features such as safe.
This utility model is designed using existing ripe ARM and FPGA technology, is designed using two-stage core processing circuit
Laser cutting machine, realize the intellectuality of laser cutting machine using simplest hardware configuration, total has small volume, behaviour
Make the features such as simple, function is strong.
This utility model is effectively using the FPGA and ARM of existing mature technology carrying out the core of whole laser cutting machine
Management function, so as to reach the purpose to laser cutting machine structure operation of intellectuality, automatization.
External memory storage described in the utility model can further pass through the process performance of second processing device IC2, and
The working stability degree of the whole laser cutting machine of effective guarantee, it is to avoid the work of whole laser cutting machine is affected due to performance reason
Make.
Description of the drawings
Fig. 1 is DA modulate circuits schematic diagram shown in this utility model.
Fig. 2 is this utility model structural representation.
Specific embodiment
This utility model is described in further detail with reference to embodiment, but embodiment of the present utility model is not
It is limited to this.
It should be noted that in practical application of the present utility model, being inevitably applied to software program, but Shen
Ask someone it is hereby stated that, the software program applied in the specific implementation by the technical scheme is all prior art, in this application, no
It is related to the change and protection of software program, simply the protection of the hardware structure to designing to realize goal of the invention.
Embodiment 1：
Laser cutting machine circuit is used in a kind of metallic plate cutting, and the DA modulate circuits built using two stage amplifer circuit can
By the digital signal for having second processing device IC2 to be exported conversion in analogue signal, enter to exercise to supply first processor circuit
With, it is using simple circuit structure design, low with use cost, the features such as safe, as shown in Figure 1 and Figure 2, especially adopt
Use following setting structures：It is provided with the first processor circuit and second processing device circuit being connected with each other；In the second processing
Second processing device IC2, liquid crystal display, DA modulate circuits, PWM input detecting circuits and clock circuit are provided with device circuit,
The first processor circuit connects second processing device IC2 and DA modulate circuit, DA modulate circuits and second processing device IC2 respectively
It is connected, second processing device IC2 is connected with liquid crystal display, PWM input detecting circuits and clock circuit respectively；The DA is adjusted
The first discharge circuit and the second discharge circuit being connected with each other is provided with reason circuit, current potential is provided with the first discharge circuit
Device W3, electric capacity C2, resistance R2, resistance R7, electric capacity C1, electric capacity C5, electric capacity C6, potentiometer W1, resistance R9 and amplifier chip U1, institute
7 feet for stating amplifier chip U1 are connected with 3 feet of amplifier chip U1 by electric capacity C5, and 1 foot of amplifier chip U1 passes through potentiometer
W1 connects 5 feet of amplifier chip U1, and the adjustable end of potentiometer W1 connects 7 feet of amplifier chip U1 by resistance R9；Amplifier core
4 feet of piece U1 are connected and are grounded with 3 feet of amplifier chip U1 by electric capacity C6；The P0.0/ of the second processing device IC2
IDAC0 feet connect 2 feet of amplifier chip U1, and arbitrary fixation of the adjustable end of potentiometer W3 and potentiometer W3 by potentiometer W3
End is connected；2 feet of amplifier chip U1 connect second end of electric capacity C1, the first end of electric capacity C1 first end respectively with resistance R7
It is connected with second end of resistance R2, the second end ground connection of resistance R7, the first end of resistance R2 are grounded by electric capacity C2, the fortune
6 feet for putting chip U1 are connected with the second discharge circuit；Preferred amplifier chip U1 adopts μ A741 operational amplifiers, μ
A741 operational amplifiers, fairchild company of the U.S. (fairchild) invention, is first piece of integrated operational amplifier in the world, upper
The later stage sixties in century is widely current, and the typical case unit device of amplifier principle is explained during μ A741 amplifiers are still electronics subject until today
Part.μ A741 are high-performance, internally-compensated operational amplifier, low in energy consumption, are compensated without the need for foreign frequency, with short-circuit protection and imbalance
Voltage zeroing ability, is not in latch phenomenon in use, can be used as integrator, summing amplifier and common feedback amplifier,
Positive supply is connected on 7 feet of amplifier chip U1, negative supply is connected on 4 feet of amplifier chip U1.
Embodiment 2：
The present embodiment is further optimized on the basis of above-described embodiment, further new for this practicality is better achieved
Type, as shown in Figure 1 and Figure 2, especially using following setting structures：Amplifier chip U2, electricity are provided with second discharge circuit
Resistance R8, resistance R5, electric capacity C4, electric capacity C3, electric capacity C7, electric capacity C8, resistance R10, potentiometer W2, resistance R6 and resistance R4, resistance
One end of R4 connects 6 feet of amplifier chip U1, and the other end of resistance R4 passes through resistance R6 2 feet and electricity respectively with amplifier chip U2
The second end for holding C3 is connected, and second end of electric capacity C3 is connected with the first end of the first end and resistance R8 of resistance R5 respectively,
The second end ground connection of resistance R8, second end of resistance R5 is grounded by electric capacity C4；7 feet of amplifier chip U2 are connected by electric capacity C7
3 feet of amplifier chip U2 and ground connection, connect potentiometer W2, and the adjustable end of potentiometer W2 between 1 foot and 5 feet of amplifier chip U2
7 feet of amplifier chip U2 are connected by resistance R10,4 feet of amplifier chip U2 are grounded by electric capacity C8,6 feet of amplifier chip U2
It is connected with first processor circuit；Preferred amplifier chip U2 adopts μ A741 operational amplifiers, in amplifier chip U2
Positive supply is connected on 7 feet, negative supply is connected on 4 feet of amplifier chip U2.
Embodiment 3：
The present embodiment is further optimized on the basis of any of the above-described embodiment, and further is that this reality is better achieved
With new, designed, the cut designed using two-stage core processing circuit using existing ripe ARM and FPGA technology
Machine, realizes the intellectuality of laser cutting machine using simplest hardware configuration, and total has small volume, simple to operate, work(
Can be strong the features such as, as shown in Figure 1 and Figure 2, especially using following setting structures：First is provided with the first processor circuit
Processor IC1, sensor circuit, relay circuit, IGBT, laser equipment and comparator, the sensor circuit connection first
Processor IC1, first processor IC1 connect relay circuit, and laser equipment is connected with IGBT and comparator respectively, and IGBT connects
First processor IC1 is met, first processor IC1 is also connected with comparator, 6 feet of comparator connection amplifier chip U2, first
Processor IC1 connects second processing device IC2；First processor IC1 major functions include the frequency dividing of high frequency clock, analog switch
Transmission of gating control, the detection of encoder pulse, external feedback and data etc..
Embodiment 4：
The present embodiment is further optimized on the basis of any of the above-described embodiment, and further is that this reality is better achieved
With new, when occurring that temperature is too high or cutting position skew lamp shadow rings the situation of finished products quality, timely can be carried
Wake up, as shown in Figure 1 and Figure 2, be specifically arranged to following structures：Be additionally provided with the first processor circuit warning circuit and
Feedback circuit, the warning circuit and feedback circuit are all connected with first processor IC1.
Embodiment 5：
The present embodiment is further optimized on the basis of any of the above-described embodiment, and further is that this reality is better achieved
With new, in real time the operational temperature information of laser equipment can be acquired, and react in time laser equipment and workpiece it
Between distance, as shown in Figure 1 and Figure 2, especially using following setting structures：It is provided with the sensor circuit respectively with first
Temperature sensor and range sensor that processor IC1 is connected.
Embodiment 6：
The present embodiment is further optimized on the basis of any of the above-described embodiment, and further is that this reality is better achieved
With new, as shown in Figure 1 and Figure 2, especially using following setting structures：It is additionally provided with the second processing device circuit and
The external memory storage that two processor IC2 are connected, the external memory storage include SD card and random access memory, and random access memory
For dynamic RAM or/and dynamic RAM.
Embodiment 7：
The present embodiment is further optimized on the basis of any of the above-described embodiment, and further is that this reality is better achieved
With new, as shown in Figure 1 and Figure 2, especially using following setting structures：Also include upper with what the second processing device IC2 was connected
Position machine, host computer can be used in carrying out backstage management and control or remote-control to laser cutting machine.
Embodiment 8：
The present embodiment is further optimized on the basis of any of the above-described embodiment, and further is that this reality is better achieved
With new, as shown in Figure 1 and Figure 2, especially using following setting structures：Also include respectively at first processor circuit and second
The power circuit that reason device circuit is powered, the power circuit include being connected with first processor IC1 and second processing device IC2 respectively
The resonant switching power system for connecing, is also associated with ac power supply system on the resonant switching power system.
Embodiment 9：
The present embodiment is further optimized on the basis of any of the above-described embodiment, and further is that this reality is better achieved
With new, as shown in Figure 1 and Figure 2, especially using following setting structures：The processor chips that the first processor IC1 is adopted for
Spartan-7FPGA is serial, and Spartan-7FPGA family devices adopt compact package and provide industry rs most performance power consumption
Than most harsh requirement can be met；Using 28nm technique constructions, it is industrial, consumer application and the preferable choosing of automobile application
Select, including applications such as arbitrarily connection, sensor fusion and embedded visions；Speed faster than 45nm train 30%；
Reach 1.25Gb/s LVDS；The soft Memory Controller Hub of high flexible supports the peak value DDR3-800 memory bandwidths of 25.6Gb per second；
1.0V core voltage or 0.95V core voltage options；Total power consumption is lower than 45nm train by 50%；It is preferred that adopting XC7S6.
Embodiment 10：
The present embodiment is further optimized on the basis of any of the above-described embodiment, and further is that this reality is better achieved
With new, as shown in Figure 1 and Figure 2, especially using following setting structures：The processor chips that the second processing device IC2 is adopted for
STM32F3 series monolithics；STM32F3 series monolithics have 32 ARM Cortex-M4 kernel (bands for running on 72MHz
Have FPU and DSP instructions) and integrated multiple analog peripheral hardware, so as to reducing application cost and simplifying Application Design, it includes：It is ultrafast
Fast comparator (25ns)；Operational amplifier with programmable-gain；12 DAC；Supper-fast 12 ADC, single channel 5M per second
Secondary sampling (5,000,000 samplings per second), can reach 18M sampling per second under alternate mode；Accurate 16 sigma-delta
ADC (21 passage)；Kernel coupled memory SRAM (program accelerator) is to improve the special storage of time-critical program feature
Device framework, can be by performance boost 43%；The senior 16 pulsewidth modulations intervalometer (resolution of 144MHz<7ns), should for control
With；High resolution timer (217ps), can self compensation to power supply and temperature drift；Flexible interconnection matrix can be between peripheral hardware
Autonomous type communicates, and saves cpu resource and power consumption；STM32F301 is adopted preferably.
Sent to first processor IC1 by second processing device IC2 and instructed, opened in relay circuit successively according to instruction
Main relay and surge relay, and realize operating the unlatching of laser equipment, when setting meet the parameter of processing request with
Afterwards, second processing device IC2 sends pulsewidth and frequency data to first processor IC1, it is determined that opening and closing the time of IGBT.When
Second processing device IC2 is sent to first processor IC1 when lighting command operating, and first processor IC1 is according to pulsewidth and frequency
Rate is performed and opens and closes IGBT, so as to realize that the opening and closing to laser equipment are operated.
Liquid crystal display, can intuitively clearly show and go out light time in the parameter and instantaneous operating conditions of various settings
Number, laser equipment working time etc..Liquid crystal of the preferred liquid crystal display using the full duplex asynchronous serial ports of enlightening text 320 × 240
Screen.Meanwhile, in order to be able to the time of preferably monitoring laser equipment work, it is ensured that the work safety of laser equipment, reflection system go out
Existing failure, adds warning circuit and clock circuit outside.
Power circuit uses the circuit structure of resonant switch technology, it is possible to achieve the shut-off at current over-zero moment, energy
Switching loss is efficiently reduced enough, so as to improve conversion efficiency.The interface of power circuit and control system circuit in design
Increase quarantine measures (resonant switching power system), to prevent electric power main circuit from control circuit is caused to the interference of control circuit
The generation of out-of-control phenomenon.
IGBT (Insulated Gate Bipolar Transistor), insulated gate bipolar transistor is (double by BJT
Polar form audion) and the compound full-control type voltage driven type power semiconductors that constitute of MOS (insulating gate type field effect tube), and
Have MOSFET high input impedance and GTR low conduction voltage drop of both advantage.GTR saturation pressures are reduced, and current carrying density is big, but
Driving current is larger；MOSFET driving power very littles, switching speed are fast, but conduction voltage drop is big, and current carrying density is little.IGBT is combined
The advantage of both the above device, driving power is little and saturation pressure is reduced.Be highly suitable to be applied for DC voltage for 600V and more than
The converter system such as field such as alternating current generator, converter, Switching Power Supply, lighting circuit, Traction Drive.
IGBT module is by specific by IGBT (insulated gate bipolar transistor chip) and FWD (fly-wheel diode chip)
Circuit bridge encapsulation modularized semiconductor product；Between IGBT module after encapsulation directly applies to converter, UPS not
On the equipment such as power-off source；
The features such as IGBT module has energy-conservation, convenient to install and maintain, radiating is stable；That what is sold on Vehicles Collected from Market is mostly such
Modular product, general described IGBT also refer to IGBT module；With the propulsion of the theories such as energy-conserving and environment-protective, such product is in market
On will be more and more common；
IGBT is the core devices of energy transformation and transmission, is commonly called as " CPU " of power electronic equipment, as national strategy
New industry is extremely wide in the field application such as track traffic, intelligent grid, Aero-Space, electric automobile and new forms of energy equipment.
Pulse width modulation, PWM (Pulse Width Modulation), is come right using the numeral output of microprocessor
A kind of very effective technology that analog circuit is controlled, is widely used in from measurement, the Power Control that communicates and conversion
In many fields.
It is come right using the numeral output of microprocessor that pulse width modulation is a kind of simulation controlling party pulse width modulation
A kind of very effective technology that analog circuit is controlled, is widely used in from measurement, the Power Control that communicates and conversion
In many fields pulse width modulation be using the numeral output of microprocessor come one kind for being controlled to analog circuit very
Effectively technology, is widely used in many fields from measurement, the Power Control that communicates with conversion.
Pulse width modulation is a kind of analog control mode, its according to the change of respective loads come modulation transistor base stage or
The biasing of metal-oxide-semiconductor grid, realizes the change of transistor or metal-oxide-semiconductor ON time, so as to realize switching power supply output
Change.This mode can make the output voltage of power supply keep constant in operation conditions change, be the numeral using microprocessor
A kind of very effective technology that signal is controlled to analog circuit.
PWM control technologies are simple with its control, flexibly and the good advantage of dynamic response and to become Power Electronic Technique most wide
The control mode of general application, and the focus of people's research.As the development of current science and technology is without between subject
Boundary, with reference to modern control theory thought or realize resonance free ripple switching technique will become PWM control technologies development master
Want one of direction.Its changing come the biasing of modulation transistor base stage or metal-oxide-semiconductor grid according to respective loads, realizes transistor
Or the change of metal-oxide-semiconductor ON time, so as to realize the change of switching power supply output.This mode can make the output electricity of power supply
Keep constant when being pressed in operation conditions change, be using the digital signal of microprocessor analog circuit is controlled it is a kind of non-
Normal effectively technology.
The above, is only preferred embodiment of the present utility model, and any pro forma limit is not done to this utility model
System, every any simple modification made to above example according to technical spirit of the present utility model, equivalent variations, each falls within
Within protection domain of the present utility model.
Claims (10)
1. laser cutting machine circuit is used in a kind of metallic plate cutting, it is characterised in that：It is provided with the first processor electricity being connected with each other
Road and second processing device circuit；Second processing device IC2, liquid crystal display, DA are provided with the second processing device circuit to adjust
Reason circuit, PWM input detecting circuits and clock circuit, the first processor circuit connect second processing device IC2 and DA respectively
Modulate circuit, DA modulate circuits are connected with second processing device IC2, and second processing device IC2 is defeated with liquid crystal display, PWM respectively
Enter to detect that circuit and clock circuit are connected；The first discharge circuit and second being connected with each other is provided with the DA modulate circuits
Discharge circuit, is provided with potentiometer W3, electric capacity C2, resistance R2, resistance R7, electric capacity C1, electric capacity C5, electricity in the first discharge circuit
Hold C6, potentiometer W1, resistance R9 and amplifier chip U1,7 feet of amplifier chip U1 are by electric capacity C5 and the 3 of amplifier chip U1
Foot is connected, and 1 foot of amplifier chip U1 connects 5 feet of amplifier chip U1 by potentiometer W1, and the adjustable end of potentiometer W1 leads to
Cross 7 feet that resistance R9 connects amplifier chip U1；4 feet of amplifier chip U1 are connected with 3 feet of amplifier chip U1 by electric capacity C6
And be grounded；The P0.0/IDAC0 feet of the second processing device IC2 connect 2 feet of amplifier chip U1, and current potential by potentiometer W3
The adjustable end of device W3 is connected with arbitrary fixing end of potentiometer W3；2 feet of amplifier chip U1 connect second end of electric capacity C1, electricity
The first end for holding C1 is connected with the second end of the first end and resistance R2 of resistance R7 respectively, the second end ground connection of resistance R7, electricity
The first end of resistance R2 is grounded by electric capacity C2, and 6 feet of amplifier chip U1 are connected with the second discharge circuit.
2. laser cutting machine circuit is used in a kind of metallic plate cutting according to claim 1, it is characterised in that：Described second
Be provided with discharge circuit amplifier chip U2, resistance R8, resistance R5, electric capacity C4, electric capacity C3, electric capacity C7, electric capacity C8, resistance R10,
Potentiometer W2, resistance R6 and resistance R4, one end of resistance R4 connect 6 feet of amplifier chip U1, and the other end of resistance R4 is by electricity
Resistance R6 is connected with the second end of 2 feet and electric capacity C3 of amplifier chip U2 respectively, and second end of electric capacity C3 is respectively with resistance R5's
First end is connected with the first end of resistance R8, the second end ground connection of resistance R8, and second end of resistance R5 is grounded by electric capacity C4；
7 feet of amplifier chip U2 connect 3 feet and the ground connection of amplifier chip U2 by electric capacity C7, connect between 1 foot and 5 feet of amplifier chip U2
Potentiometer W2 is met, and the adjustable end of potentiometer W2 connects 7 feet of amplifier chip U2 by resistance R10,4 feet of amplifier chip U2 lead to
Electric capacity C8 ground connection is crossed, 6 feet of amplifier chip U2 are connected with first processor circuit.
3. laser cutting machine circuit is used in a kind of metallic plate cutting according to claim 2, it is characterised in that：At described first
First processor IC1, sensor circuit, relay circuit, IGBT, laser equipment and comparator, institute are provided with reason device circuit
State sensor circuit connection first processor IC1, first processor IC1 connection relay circuit, laser equipment respectively with IGBT
It is connected with comparator, IGBT connection first processor IC1, first processor IC1 are also connected with comparator, comparator connection
6 feet of amplifier chip U2, first processor IC1 connection second processing device IC2.
4. laser cutting machine circuit is used in a kind of metallic plate cutting according to claim 3, it is characterised in that：Described first
Be additionally provided with warning circuit and feedback circuit in processor circuit, the warning circuit and feedback circuit all with first processor
IC1 is connected.
5. laser cutting machine circuit is used in a kind of metallic plate cutting according to claim 3, it is characterised in that：The sensor
The temperature sensor and range sensor being connected with first processor IC1 respectively is provided with circuit.
6. a kind of metallic plate cutting laser cutting machine circuit according to any one of claim 1-5, it is characterised in that：
The external memory storage being connected with second processing device IC2, the external memory storage are additionally provided with the second processing device circuit
Including SD card and random access memory, and random access memory is dynamic RAM or/and dynamic RAM.
7. a kind of metallic plate cutting laser cutting machine circuit according to any one of claim 1-5, it is characterised in that：Also
Including the host computer being connected with the second processing device IC2.
8. a kind of metallic plate cutting laser cutting machine circuit according to claim 3 or 4 or 5, it is characterised in that：Also wrap
Include the power circuit powered to first processor circuit and second processing device circuit respectively, the power circuit is included respectively with
The resonant switching power system that one processor IC1 is connected with second processing device IC2, on the resonant switching power system also
It is connected with ac power supply system.
9. a kind of metallic plate cutting laser cutting machine circuit according to claim 3 or 4 or 5, it is characterised in that：It is described
The processor chips that first processor IC1 is adopted are serial for Spartan-7FPGA.
10. a kind of metallic plate cutting laser cutting machine circuit according to any one of claim 1-5, it is characterised in that：
The processor chips that the second processing device IC2 is adopted are for STM32F3 series monolithics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621218441.XU CN206140005U (en) | 2016-11-13 | 2016-11-13 | Laser cutting machine circuit is used in metal sheet cutting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621218441.XU CN206140005U (en) | 2016-11-13 | 2016-11-13 | Laser cutting machine circuit is used in metal sheet cutting |
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| Publication Number | Publication Date |
|---|---|
| CN206140005U true CN206140005U (en) | 2017-05-03 |
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ID=58626428
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621218441.XU Expired - Fee Related CN206140005U (en) | 2016-11-13 | 2016-11-13 | Laser cutting machine circuit is used in metal sheet cutting |
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| Country | Link |
|---|---|
| CN (1) | CN206140005U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106392344A (en) * | 2016-11-13 | 2017-02-15 | 重庆拓卓金属材料有限公司 | Laser cutting machine circuit for metal plate cutting |
-
2016
- 2016-11-13 CN CN201621218441.XU patent/CN206140005U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106392344A (en) * | 2016-11-13 | 2017-02-15 | 重庆拓卓金属材料有限公司 | Laser cutting machine circuit for metal plate cutting |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170503 Termination date: 20171113 |