CN201143594Y - Inversion type plasma cutting power supply controller based on DSP digitalization - Google Patents
Inversion type plasma cutting power supply controller based on DSP digitalization Download PDFInfo
- Publication number
- CN201143594Y CN201143594Y CNU2007201176656U CN200720117665U CN201143594Y CN 201143594 Y CN201143594 Y CN 201143594Y CN U2007201176656 U CNU2007201176656 U CN U2007201176656U CN 200720117665 U CN200720117665 U CN 200720117665U CN 201143594 Y CN201143594 Y CN 201143594Y
- Authority
- CN
- China
- Prior art keywords
- power supply
- dsp
- circuit
- plasma cutting
- cutting power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Power Conversion In General (AREA)
- Control Of Electrical Variables (AREA)
Abstract
The utility model discloses a digital inverter plasma cutting power supply controller based on DSP. The system optimization of the traditional simulating control circuit is difficult to improve cutting function essentially. The digital inverter plasma cutting power controller based on DSP comprises a control circuit board (1) provided with a core microprocessor (2), the core microprocessor (2) is respectively connected with a reset circuit (3), an analog- to-digital conversion circuit (4), a serial port circuit (5), a power supply circuit (6) and a single chip computer auxiliary chip (7); wherein, the single chip computer auxiliary chip (7) is respectively connected with an LCD display (8), a keypad (9), a display nixie tube (10) and the power supply circuit, the core microprocessor is connected with a group of photoelectric couplers (11); the photoelectric couplers are correspondingly connected with an insulated gate bipolar transistor driving circuit (12). The digital inverter plasma cutting power controller based on DSP can be used for cutting power supply.
Description
Technical field:
The utility model relates to a kind of based on DSP digitlization contravariant plasma cutting power supply controller.
Background technology:
The cutting of contravariant plasma has the advantages that cost is low, efficient is high, can adapt to the cutting of multiple metal materials such as mild steel, low-alloy, stainless steel and aluminium, so its application obtains very fast popularizing.
At present, the contravariant plasma cutting power supply of main flow uses insulated gate bipolar transistor (IGBT) to do switching tube and realizes PWM (pulsewidth modulation) modulation, add the problem such as non-linear of the non-linear and outputting inductance of dynamic electric resistor in the cutting process, make that power supply is a strongly non-linear system; Simultaneously, the plasma cutting is as a kind of course of work of opening, and its cut quality directly is subjected to the influence of many on-the-spot factors, and the processing of a large amount of field datas and the realization of optimal control rule play important effect to improving the power supply operation stability.If system is optimized, is difficult in and further improves cutting performance in essence based on traditional analog control circuit.
Summary of the invention:
The purpose of this utility model provides a kind of based on DSP digitlization contravariant plasma cutting power supply controller, the twin-core structure that adopts core microprocessors and single-chip microcomputer companion chip is as its control centre, circuit system is simple, debugging is convenient, has very strong adaptability and controllability.
Above-mentioned purpose realizes by following technical scheme:
Based on DSP digitlization contravariant plasma cutting power supply controller, its composition comprises: control circuit board, has core microprocessors on the described control circuit board, described core microprocessors connects reset circuit respectively, analog to digital conversion circuit, serial port circuit, power supply circuits, the single-chip microcomputer companion chip, described single-chip microcomputer companion chip connects LCD respectively, button, show charactron, described power supply circuits, described core microprocessors connects one group of photoelectrical coupler, the corresponding insulated gate bipolar transistor driver circuit that connects of described photoelectrical coupler.
Described based on DSP digitlization contravariant plasma cutting power supply controller, described one group of photoelectrical coupler is four, has annexation between described each photoelectrical coupler.
The beneficial effects of the utility model:
1. system adopts high performance core microprocessors TMS320LF2407 as core, be equipped with single-chip microcomputer companion chip P89C52 formation twin-core structure system is controlled, can accurately obtain transistorized drive waveforms of IGBT insulated gate bipolar and cutting power supply output waveform.
2. can realize to the various status informations of power supply diagnose automatically, handle, show, function such as warning, have certain intelligence.
3. control system fast operation, the control accuracy height has improved cutting speed, has improved cut quality, and system effectiveness has reached 90%, arcing time factor 85%.
4. circuit system is succinct, and is easy to operate, working stability, and power consumption is little.
Description of drawings:
Accompanying drawing 1 is the structured flowchart of this product.
Accompanying drawing 3 is minimum system schematic diagrams of core microprocessors.
Accompanying drawing 5 is schematic diagrams of button and display circuit.Among the figure only with the signal of the annexation of latch chip U1.
Regulation according to the electronic circuit drawing has annexation between the pin of same numeral or the circuit in the accompanying drawing.
The specific embodiment:
Embodiment 1:
Based on DSP digitlization contravariant plasma cutting power supply controller, its composition comprises: control circuit board 1, has DSP-TMS320LF2407 core microprocessors 2 on the described control circuit board, described core microprocessors connects reset circuit 3 respectively, AD analog to digital conversion circuit 4, serial port circuit 5, power supply circuits 6, P89C52 single-chip microcomputer companion chip 7, described single-chip microcomputer companion chip connects LCD LCD 8 respectively, button 9, LED shows charactron 10, described power supply circuits, described core microprocessors connects one group of photoelectrical coupler 11, the corresponding IGBT insulated gate bipolar transistor driver circuit 12 that connects of described photoelectrical coupler.
Described based on DSP digitlization contravariant plasma cutting power supply controller, described one group of photoelectrical coupler is four, has annexation between described each photoelectrical coupler.
The utility model adopts the DSP and the P89C52 twin-core structure that have powerful data-handling capacity to control core as it, and on this hardware foundation, adopt predictive PI proportional plus integral control policy controlling system, thereby improve the system data processing speed, to the contravariant plasma cutting power supply cut each stage electric current, voltage waveform is controlled.
Described based on DSP digitlization contravariant plasma cutting power supply controller, described core microprocessors and described A/D convertor circuit have connected and composed temperature, current feedback passage.
Described based on DSP digitlization contravariant plasma cutting power supply controller, described core microprocessors and described serial port circuit have connected and composed the USB circuit.
Described based on DSP digitlization contravariant plasma cutting power supply controller, described core microprocessors is connected with described single-chip microcomputer companion chip, and described single-chip microcomputer companion chip and described LCD LCD, button are provided with circuit, show that charactron circuit LED has connected and composed man-machine interchange channel.
Described based on DSP digitlization contravariant plasma cutting power supply controller, described power supply circuits and described core microprocessors, the single-chip microcomputer companion chip is connected to it that power supply is provided.
Described based on DSP digitlization contravariant plasma cutting power supply controller, U1 is that chip is amplified in computing in the accompanying drawing 2, and its model is TLC2274; Core microprocessors dsp chip in the accompanying drawing 3, its model are TMS320LF2407; U2 is and the door chip in the accompanying drawing 3, and its model is 74LS08; U3 is an external RAM storage chip at random, and its model is CY7C1021; U1 is the data buffering driver in the accompanying drawing 4, and its model is 74LS245; U1-U6 is the latch chip in the accompanying drawing 5, and its model is 74ALS573; U7 is button and display control chip, and its model is ZLG7290; U8 is the LCD control chip, and its model is SED1335; U9 is a single-chip microcomputer, and its model is P89C51; U1 is the CAN transceiver in the accompanying drawing 6, and its model is SN65HVD230; U2 is the RS232 electrical level transferring chip, and its model is MAX232; U3 is the rapid light coupling chip, and its model is 6N137.
Described based on DSP digitlization contravariant plasma cutting power supply controller, its operation principle is: with TMS320LF2407 data processor DSP and P89C52 twin-core structure as the control system core, parameter signals such as voltage, current knob and temperature, current feedback are through the A/D sampling of DSP and bring the pulsewidth preset sequence into through certain calculation the PWM pulsewidth is carried out given modulation on when work, system was by control panel, and the IGBT to copped wave and inverter circuit drives respectively; And system is by the chip microcontroller man-machine communication, each functional switch of being handled cutting process through single-chip microcomputer by the self-control keyboard input signal is provided with, the selected back of each functional switch is isolated by the light lotus root sends into the I/O I/O port, and the air valve of power supply, electric igniter etc. are carried out SECO; Because volume of transmitted data is little, the intercommunication of single-chip microcomputer, DSP and PC adopts full duplex asynchronous serial mode commonly used to carry out transfer of data simultaneously, and it is convenient to quick realization, the reliability height.Thereby improved control system arithmetic speed and stability, cut quality is improved, and operation is more simple and convenient.
Claims (2)
1. one kind based on DSP digitlization contravariant plasma cutting power supply controller, its composition comprises: control circuit board, it is characterized in that: have core microprocessors on the described control circuit board, described core microprocessors connects reset circuit respectively, analog to digital conversion circuit, serial port circuit, power supply circuits, the single-chip microcomputer companion chip, described single-chip microcomputer companion chip connects LCD respectively, button, show charactron, described power supply circuits, described core microprocessors connects one group of photoelectrical coupler, the corresponding insulated gate bipolar transistor driver circuit that connects of described photoelectrical coupler.
2. according to claim 1 based on DSP digitlization contravariant plasma cutting power supply controller, it is characterized in that: described one group of photoelectrical coupler is four, has annexation between described each photoelectrical coupler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201176656U CN201143594Y (en) | 2007-12-13 | 2007-12-13 | Inversion type plasma cutting power supply controller based on DSP digitalization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201176656U CN201143594Y (en) | 2007-12-13 | 2007-12-13 | Inversion type plasma cutting power supply controller based on DSP digitalization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201143594Y true CN201143594Y (en) | 2008-11-05 |
Family
ID=40080467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201176656U Expired - Fee Related CN201143594Y (en) | 2007-12-13 | 2007-12-13 | Inversion type plasma cutting power supply controller based on DSP digitalization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201143594Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102380698A (en) * | 2011-09-13 | 2012-03-21 | 安徽西锐重工科技有限公司 | Numerical-control plasma power source with multiple plasma cutting torches |
| CN106695094A (en) * | 2017-01-12 | 2017-05-24 | 江苏理工学院 | Power supply and current control system for corner cutting through plasmas |
-
2007
- 2007-12-13 CN CNU2007201176656U patent/CN201143594Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102380698A (en) * | 2011-09-13 | 2012-03-21 | 安徽西锐重工科技有限公司 | Numerical-control plasma power source with multiple plasma cutting torches |
| CN106695094A (en) * | 2017-01-12 | 2017-05-24 | 江苏理工学院 | Power supply and current control system for corner cutting through plasmas |
| CN106695094B (en) * | 2017-01-12 | 2019-02-15 | 江苏理工学院 | Plasma cut corner Source Current Control system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201143594Y (en) | Inversion type plasma cutting power supply controller based on DSP digitalization | |
| CN201673187U (en) | Handheld touchable oscilloscope | |
| CN201614977U (en) | Crane engine throttle control device | |
| CN201758383U (en) | Frequency conversion energy-saving system control cabinet | |
| CN203773394U (en) | Direct-current power source allowing constant voltage or constant current output | |
| CN202219735U (en) | High-edge driving circuit with secondary turn-off protection capability | |
| CN204439804U (en) | A kind of LED drive power aging vehicle | |
| CN201211453Y (en) | Novel pulse control tool based on matrix output | |
| CN204695061U (en) | A kind of intelligent electric activator | |
| CN105553074A (en) | DSP and ARM dual-core-based solar photovoltaic intelligent charger human-computer interaction system | |
| CN207439486U (en) | A kind of low-power consumption gas meter, flow meter metering device | |
| CN201313230Y (en) | Inverter plasma cutting power supply device based on DSP | |
| CN204270082U (en) | A kind of UPS uninterrupted power source | |
| CN100485559C (en) | Communication transmit-receiver switch controller and its control method | |
| CN204155201U (en) | A kind of energy-saving type computer external cooling mechanism | |
| CN202163990U (en) | Feedback power-conservation optimizing control device for frequency-variable elevator | |
| CN208063169U (en) | A kind of hydrogen thyratron triggering driving device | |
| CN201903772U (en) | Reliable rotating table operation and control device | |
| CN201493594U (en) | DC-DC inversion-type electrical welding machine | |
| CN201860271U (en) | Monophase full bridge DC/AC converter device based on hybrid Petri machine | |
| Chen et al. | The intelligent control design and realization of an AC contactor with wide-range input voltage | |
| CN204332578U (en) | A kind of proportion electro-magnet control circuit | |
| CN204241928U (en) | Throttle control system logical signal modular converter | |
| CN219918148U (en) | Energy-conserving effectual electric quantity energy-saving instrument | |
| CN202936819U (en) | Solar bulldozer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |