CN201118463Y - A high-power high-frequency soft switch IGBT reverse agglomeration power supply - Google Patents
A high-power high-frequency soft switch IGBT reverse agglomeration power supply Download PDFInfo
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- CN201118463Y CN201118463Y CNU2007200595760U CN200720059576U CN201118463Y CN 201118463 Y CN201118463 Y CN 201118463Y CN U2007200595760 U CNU2007200595760 U CN U2007200595760U CN 200720059576 U CN200720059576 U CN 200720059576U CN 201118463 Y CN201118463 Y CN 201118463Y
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Abstract
The utility model discloses a high-power high-frequency soft-switching IGBT inverter type sintering power supply, comprising a plurality of host power supply circuits and a program control module which are connected with each other; the plurality of host power supply circuits are connected in parallel with each other and are respectively connected with the program control module. The utility model adopts the high-frequency IGBT soft-switching inverter technology with the efficiency up to 90% to save manufacturing materials and reduce the interference to power grids, which is provided with small impact current, good electromagnetic compatibility, high reliability, high energy efficiency, small size and light weight and is easy to achieve the conversion between multi-characteristics and multi-functions, unified regulation, automatic heating parameter match as well as easy and fast operation; the system is provided with good dynamic characteristics, quick and accurate heating as well as automatic power grid fluctuation compensation function; the utility model adopts building block type and modular structure and realize the automatic current sharing and collaboration of a plurality of parallelly-connected modules through cooperative control so as to increase output power and further enhance the system redundancy and reliability at the same time.
Description
Technical field
The utility model relates to the light mechanical and electrical integration field, also relate to non-ferrous metal metallurgy and process technology, power electronic technology, high-frequency inversion technology, digital Control Technology and Theory of Automatic Control and technology, specifically be meant the soft switch I GBT contravariant of a kind of high-power high-frequency sintering power supply.
Background technology
Non-ferrous metal metallurgy and processing industry are the industries of a high energy consumption, and general enterprise all adjusts electric energy as producing raw material, and energy consumption directly has influence on the production cost of enterprise.The energy loss of non-ferrous metal sintering process concentrates on the electrical energy transfer link greatly, i.e. power supply link, and the efficient of power supply directly has influence on the efficiency of energy utilization of whole sintering smelting process.
The power of the sintering energy is big, and unit even up to 2000KVA, and is 100% arcing time factor long time continuous working more than 100KVA basically, and ambient temperature is higher, and stability, the reliability of power supply proposed very strict requirement.The quality of power supply depends on the rational Match of level, control method and the major loop Primary Component parameter of power device to a great extent.Owing to be subjected to the restriction of device quality and scientific and technological level, the power supply part of present non-ferrous metal sintering furnace adopts the mode of using the power supply of low pressure industrial-frequency alternating current to heat after the Industrial Frequency Transformer step-down basically, adopt the high-quality graphite material as heating load, regulate power output by the mode of regulating thyristor angle of flow size, thereby reach temperature control sintering heating process.This heating means are simple in structure, and it is more stable reliable to work, and control mode is simple, be used widely at the non-ferrous metal sintering art, but along with the progress of science and technology and the progressively maturation of power device, the shortcoming of this mode of heating are more and more obvious:
1, the efficient of electrical energy transfer conversion process is very low, because the frequency in the transformation of electrical energy process is very low, the copper loss of transformer, iron loss, magnetic hysteresis loss geometric ratio are higher, and actual efficiency is difficult to surpass 65%, efficient under zero load or underloading situation is lower, usually about 0.3～0.5.
2, power factor low (when unloaded 0.35, during load about 0.6 to 0.7), active power is not high, causes that the capacity to electrical network has requirements at the higher level under the situation of output equal-wattage, in case need expand the scale of production, the expense of increasing capacity of electrical network is very high.
3, adopt industrial frequency AC directly to the mineral carbon load heating, because mineral carbon load is a pure resistance character, the time of industrial frequency AC zero crossing is long, and the efficiency of heating surface is difficult to further raising.
4, thyristor belongs to half controllable devices, can't be from turn-offing, adopt the trim of thyristor as power output, switching frequency can be restricted, the whole controlling system cycle is long, be difficult to realize that dynamic property is not good enough to the accurate dynamic adjustments of energy output and accurately control, particularly stability and continuity are relatively poor when lower-wattage is worked;
5, bulky, consumptive material is many, and Heavy Weight takes up room.
Since phase late 1970s, inversion transformation technique is described as " power supply of tomorrow " because of advantages such as its energy-efficient province material begin more and more to be paid close attention to, " power supply of a new generation ".Adopting inversion transformation technique is the good method that solves above these problems.At first, inversion transformation technique increases substantially the inversion frequency of power supply, makes the volume of power supply main transformer, quality reduce significantly; Simultaneously, because electronic power components works on off state, transformer etc. can adopt the very little core material of iron loss factor, and efficient is greatly improved; Because have electric capacity in the main circuit, power factor is improved, energy-saving effect is obvious; In addition, because operating frequency is very high, the filter inductance value is little in the main circuit, and electromagnet inertia is little, be easy to obtain good dynamic characteristic, so controllability is good.
The Digital Control of inverter is trend of the times.The digital Control Technology of industry inverter makes inverter more reliable, and performance is better, and function is more complete, and consistency is better.The digital Control Technology of inverter mainly contains two purposes: one is to use digitizing technique to solve the inverter self problem rapidly; The 2nd, with the function of digitizing technique lifting inverter, satisfy the demand of advanced manufacturing technology.Digital Control is easy to adopt advanced control method and intelligent control algorithm, makes that the intelligent degree of industrial power is higher, and performance is perfect more; Control system is flexible, and system upgrade is convenient, is easy to realize the Collaborative Control of multi-parameter, even can online modification control algolithm and Control Parameter, and needn't change hardware circuit, has shortened the design cycle greatly; The component number of control circuit obviously reduces, and has improved the antijamming capability and the stability of a system of system; The reliability of control system improves, and is easy to standardization; The consistency of system is better, and it is convenient to manufacture; Because control method is flexible, is convenient to a plurality of inverter parallel Operation Control, thereby realize more high-power output.
At present, one of problem that seriously restricts the industrial inverter development of high-power special type is exactly its pollution problem to environment, and " electromagnetic pollution " is confirmed as the fifth-largest environomental pollution source after " water, gas, slag, sound ".For further improving the fail safe and the reliability of China's electrical and electronic product, the Electro Magnetic Compatibility of electrical and electronic product requires to include national compulsory product certification scope in.Aspect outlet, owing to be subjected to the restriction of european union directive, the extraordinary industrial inverter product of China is difficult to enter the European market.China joins WTO, and along with the quickening of world economic integration process, as not accelerating " greenization " transformation process of inverter, homemade extraordinary industrial inverter is extruded the world even domestic market probably.Adopt the soft switch high-frequency inversion transformation technique, not only can effectively improve the power device operational environment, improve system reliability, can also reduce the electromagnetic interference of high-power extraordinary industrial power effectively, improve the Electro Magnetic Compatibility of inverter.
Summary of the invention
The purpose of this utility model is exactly in order to solve above-mentioned the deficiencies in the prior art part, at problem and the development of technologies trend of present non-ferrous metal metallurgy with the existence of processing power supply, the soft switch I GBT contravariant of a kind of high-power high-frequency sintering power supply is provided, efficient can be up to 90%, save manufactured materials, volume is small and exquisite, impulse current is little, Electro Magnetic Compatibility is good, the reliability height, and minimizing is to the interference of electrical network, firing rate is fast, heating process can realize the multi-parameters optimization coupling, and the heating quality height is particularly suitable for non-ferrous metal metallurgy and processing industry and uses.
The purpose of this utility model is achieved through the following technical solutions:
The soft switch I GBT contravariant of described a kind of high-power high-frequency sintering power supply comprises that many group host power supply circuits, program controling module interconnect composition, and described many group host power supply circuits are parallel with one another, and are connected with program controling module respectively; Described host power supply circuit comprises that main circuit and control circuit interconnect composition; Described main circuit comprises rectification filtering module, high-frequency inversion module, power transformation module, rectification is level and smooth and the stabilising arc module connects to form successively, described rectification filtering module also is connected with three-phase alternating current input power supply, and described rectification smoothly also is connected with load with the stabilising arc module; Described control circuit comprises the current/voltage detection module, the given module of parameter, comparator, control system, pulse width modulation module and high-frequency drive module interconnect composition, one end of described current/voltage detection module is connected with load, the other end is connected with the input of comparator, the given module of described parameter is connected with another input of comparator, the output of described comparator is connected with control system, described control system and pulse width modulation module, the high-frequency drive module connects successively, also be connected with program controling module, described high-frequency drive module is connected with the high-frequency inversion module.
In order to realize the utility model better, described host power supply circuit comprises safety protective circuit, and described safety protective circuit comprises that net pressure detection module, overheated detection module, security protection module interconnect composition; Described net presses an end of detection module to be connected with three-phase alternating current input power supply, and the other end is connected with security protection module, and described security protection module also is connected with overheated detection module, pulse width modulation module respectively.One end of described overheated detection module is connected with the radiator and the power transformation module of high-frequency inversion module respectively, and the other end is connected with security protection module.Described control system is mainly interconnected by Programmable Logic Controller PALCE22V10Q, inverter chip ULN2003A and auxiliary circuit to be formed.Described pulse width modulation module is mainly interconnected by integrated control chip UC3879 of error amplifying circuit, inverter chip ULN2003A and phase shift and auxiliary circuit to be formed.Described high-frequency drive module is mainly interconnected by two high-frequency pulse transformer M1 and M2, chip 2SK1417, M74HC4049 and CD4011 and auxiliary circuit to be formed.Described program controling module mainly is made up of NE555, LM324, LM393, CD4066 and peripheral circuit.
The utility model adopts high-frequency I GBT soft-switching inversion technology, and the Capacity Ratio of its single tube or module is bigger, and withstand voltage being up to more than the 6500V, current capacity can reach 3300A, is particularly suitable for the requirement of metal smelt sintering application to high-power power supply.By intelligent cordwood system type, modular organization, by the essentially identical modular host power supply circuit of many groups structure parallel operation, under the Collaborative Control effect of program controling module, realize that by modular construction power increases, constitute high-power high-frequency soft-switching inversion formula sintering power supply.The control system of many pack modules formula host power supply circuit is connected by program controling module, realizes the sharing control and the collaborative work of multimode, regulates output voltage electric current and demonstration.
The utility model compared with prior art has following advantage and beneficial effect:
1, the utility model adopts advanced high-frequency I GBT soft-switching inversion technology, and efficient is saved manufactured materials up to 90%, and impulse current is very little, and Electro Magnetic Compatibility is good, and reduces the interference to electrical network, the reliability height, and energy-conservation, volume is little, and is in light weight, conveniently moving.
2, the utility model serves as the control core with Programmable Logic Controller PALCE22V10Q, is easy to realize many characteristics and multi-functional conversion, unified adjusting, mates heating parameters automatically, and is simple to operate, quick.
3, the utility model adopts digitlization dynamic characteristic accurate control technique, and system has good dynamic characteristic, and heating is accurate rapidly, and possesses automatic power network fluctuation compensate function---and power network fluctuation ± 15% does not influence sintering power supply operate as normal.
4, the utility model has adopted the structure of cordwood system type, modular, realize the automatic current equalizing and the collaborative work of many groups module in parallel by Collaborative Control, when increasing power output, further improved the redundant ability and the reliability of system, be particularly suitable for non-ferrous metal metallurgy and processing industry and use.
Description of drawings
Fig. 1 is a circuit block diagram of the present utility model;
Fig. 2 is the circuit theory diagrams of single group host power supply circuit of the present utility model;
Fig. 3 is the circuit theory diagrams of pulse width modulation module of the present utility model;
Fig. 4 is the circuit theory diagrams of high-frequency drive module of the present utility model
Fig. 5 is the circuit theory diagrams of safety protective circuit of the present utility model;
Fig. 6 is the circuit theory diagrams of control system of the present utility model;
Fig. 7 is the circuit theory diagrams of program controling module of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail, but implementation of the present utility model is not limited to this.
As shown in Figure 1, the soft switch I GBT contravariant of a kind of high-power high-frequency described in the utility model sintering power supply comprises many group host power supply circuit ( modules 1,2 ... n), program controling module 112 interconnects composition, many group host power supply circuit ( modules 1,2 ... n) parallel with one another, and be connected with program controling module 112 respectively.Single group host power supply circuit comprises main circuit and control circuit.Main circuit by the rectification filtering module 101, high-frequency inversion module 102, power transformation module 103 and the rectification that connect successively level and smooth and stabilising arc module 104 form.Rectification filtering module 101 is connected with three-phase alternating current input power supply, and rectification smoothly is connected with load with stabilising arc module 104.Control circuit comprises current/voltage detection module 109, the given module 110 of parameter, comparator 113, control system 111, pulse width modulation module 107 and high-frequency drive module 108.One end of current/voltage detection module 109 is connected with load, the other end is connected with comparator 113 inputs, the given module 110 of parameter is connected with another input of comparator 113, the output of comparator 113 is connected with control system 111, control system 111 is connected with pulse width modulation module 107, pulse width modulation module 107 is connected with high-frequency drive module 108, and high-frequency drive module 108 is connected with high-frequency inversion module 102.Main circuit also comprises safety protective circuit, and this circuit comprises net pressure detection module 105, overheated detection module 114, security protection module 106; Net presses an end of detection module 105 to be connected with the three-phase alternating-current supply of access, and the other end is connected with security protection module 106, and security protection module 106 is connected with pulse width modulation module 107.Be connected by program controling module 112 between the control system 111 of two groups of host power supply circuits.Net presses detection module 105 to detect the three-phase alternating current input voltage.One end of overheated detection module 114 is connected with the radiator and the power transformation module 103 of high-frequency inversion module 102 respectively, and the other end is connected with security protection module 106.That security protection module 106 is realized is under-voltage, overvoltage, overcurrent, protection such as overheated.The given module 110 of parameter is made of given voltage and current two potentiometers.Comparator 113 adopts the TL084 comparator, and outer shroud detection signal and given parameter are compared.Current/voltage detection module 109 is a current/voltage HALL transducer, gathers actual output current and voltage respectively in real time, delivers to closed control circuit and display circuit.
As shown in Figure 2, three-phase alternating current input power supply connects the rectifier bridge of rectification filtering module 101, connects filtering link L1, C then
5-8, connect inverter bridge VT1-4, C11-14, the R of high-frequency inversion module 102 again
5-8, wherein, R
5-8In the middle of side circuit, replace C with the zero resistance line
11-14Be external resonant capacitance.It is elementary that the output of high-frequency inversion module 102 meets the high-frequency power transformer T1 of power transformation module 103, and transformer secondary output is by high frequency full-wave rectifying circuit D
1～4, filtering link L2, C
9-10, C
15-16, R
1-2, R
9Back output DC, above link constitutes the power main circuit.High-frequency inversion module 102 comprises TR1 and two inverter bridge legs of TR2 (being respectively leading-bridge and lagging leg), and each brachium pontis has comprised the IGBT of two unit.Current/voltage detection module 109 connects, is connected by inverter ULN2003A with the PALCE22V10Q of control system 111 with comparator 113.The output of control system 111 is connected with the integrated control chip UC3879 of the phase shift of pulse width modulation module 107, the output of the integrated control chip UC3879 of phase shift is connected with high-frequency drive module 108 respectively, the output of high-frequency drive module 108 is connected with G, the E utmost point of four switching tubes of high-frequency inversion module 102 respectively, and above-mentioned link constitutes feedback closed-loop control circuit.High frequency after the inversion (20KHz) high-tension electricity by the full-wave rectifying circuit that high-frequency rectification is made of the fast diode parallel connection, is exported after outputting inductance L2 filtering after transformer T1 step-down again.
Shown in Fig. 3,4, pulse width modulation module 107 is mainly interconnected by integrated control chip UC3879 of error amplifying circuit, inverter chip ULN2003A and phase shift and auxiliary circuit to be formed; High-frequency drive module 108 is mainly interconnected by two high-frequency pulse transformer M1 and M2, chip 2SK1417, M74HC4049 and CD4011 and auxiliary circuit to be formed.High-frequency drive module 108 mainly plays digital-to-analogue and isolates and the power amplification effect, the pwm signal that four road phase differences are adjustable, Dead Time is adjustable of the UC3879 output of pulse width modulation module 107 is by driving four IGBT modules of lead and lag inverter bridge leg TR1, TR2 respectively after the high-frequency drive module 108.Pwm signal is isolated after the amplification through high-frequency drive module 108, changes the highest amplitude+15V of positive half wave into, and the alternating-current pulse signal of negative half-wave lowest amplitude-15V can satisfy the reliable needs of opening and turn-offing of high-power IGBT.Phase difference by control leading-bridge TR1 and lagging leg TR2, also promptly control the phase shifting angle of pwm signal, stray inductance by external resonant capacitance, parasitic capacitance and power transformer in the inversion major loop, leakage inductance etc. have constituted a LC resonant tank, in the device for power switching switching process, realize the change of current of no-voltage resonance, switching loss is low, the electromagnetic stress of device reduces significantly, improve the operational environment of power switch pipe, improved the Electromagnetic Compatibility and the functional reliability of inverter.
As shown in Figure 5; in safety protective circuit; CN6 connects overheated detection module 114, and is connected with three ANDs and inverter chip ULN2003A with the holding wire of overheated, overcurrent and cut-off signals, by being connected of ULN2003A and integrated phase shifting control chip UC3879.In case overheated, overvoltage or undervoltage condition occur, ULN2003A output effective control signal is given UC3879, makes UC3879 phase shift pulsewidth adjust rapidly, causes inverter bridge to be turn-offed, and stops output.
As shown in Figure 6, control system 111 is mainly interconnected by Programmable Logic Controller PALCE22V10Q, inverter ULN2003A and auxiliary circuit and forms.The PALCE22V10Q system is as the core of Closed Loop Fuzzy Control, the deviation of sample rate current voltage and given signal is carried out the fuzzy operation process in inside, output signal is as the input signal of integrated control chip UC3879 in the pulse width modulation module 107, this signal with the current and voltage signals that injects relatively, determine the phase shift width of phase-shift PWM, thus the output of control power supply.
As shown in Figure 7, program controling module 112 mainly is made of electronic devices such as NE555, LM324, LM393, CD4066, realizes calculation process, sharing control, collaborative work and program control to many pack modules signal.The control system 111 of many set of modules formula host power supply circuit is connected with Interface Terminals such as CN1, CN2, CN3 respectively, input current voltage signal and display message, the CN5 interface is mainly realized the current/voltage adjusting, the CN6 interface is mainly realized this locality/remote control function interface, and the CN7/CN8 interface is realized functions such as current/voltage output demonstration.
When using the utility model, the three-phase main-frequency alternating current becomes smooth direct current through behind the rectification filtering module 101, enter high-frequency inversion module 102, control system 111 detects the electric current of load according to current/voltage detection module 109, the given module 110 given parameters of voltage signal and parameter compare, FUZZY ALGORITHMS FOR CONTROL computing through control system 111, issue 107 1 signals of pulse width modulation module, the algorithm that pulse width modulation module 107 is set according to control system 111 produces four tunnel phase-shift PWM signals, and amplify turning on and off of the switching tube that goes to control high-frequency inversion module 102 by high-frequency drive module 108, because the resonant capacitance of high-frequency inversion module 102 and the inductance of power transformation module 103 parasitisms generation resonance and four IGBT open and have phase difference, make the IGBT switching tube can the resonance change of current, the final Zero-voltage soft switch of realizing, thereby obtain the 20KHz high-frequency high-voltage, high-frequency high-voltage converts the big current low voltage output that meets the requirement of sintering heating process to through overpower transformation module 103 again, level and smooth and the stabilising arc module 104 through over commutation, absorb the due to voltage spikes of rectification link, and under little current work and electric current variation situation greatly, carry out energy and supply with fine setting, obtain more level and smooth power output, the fuzzy closed-loop control process of feedback that Here it is.Net presses detection module 105 to detect three-phase main-frequency voltage; give security protection module 106 detected voltage signal; overheated detection module 114 detects the temperature rise situation of high-frequency inversion module 102 and power transformation module 103; as phenomenons such as overvoltage, under-voltage, overcurrent, compatriots appear; security protection module 106 will give pulse width modulation module 107 1 signals; turn-off the switching tube of high-frequency inversion module 102 by high-frequency drive module 108, protection main circuit trouble free service.
The foregoing description of the present utility model has following notable feature:
1, present embodiment uses the essentially identical host power supply circuit of many groups structure of intelligent cordwood system type, modular organization first, solved the parallel current-sharing work problem under the big electric current high power situation, contravariant sintering power is reliably increased to more than the 100KW level, satisfy metal smelt and processing industry demand the power of the sintering energy; Owing to adopt the output of the essentially identical host power supply circuit of program controling module control many groups structure, this modular, cordwood control structure improved the redundant ability of sintering power supply, further improved the sintering power supply to long-time, big electric current, the abominable metal smelt and the adaptive capacity of processing environment such as continue to produce.
2, present embodiment adopts advanced high-frequency I GBT soft-switching inversion technology, and envoy's electrical dominance is obvious especially, and efficient is up to 90%, and impulse current is very little, the reliability height, and volume is little, and is in light weight, conveniently moving.What is more important adopts this Novel Soft Switching technology, not only can effectively improve the power device operational environment, improve system reliability, can also reduce the electromagnetic interference of high-power extraordinary industrial power effectively, improves the Electromagnetic Compatibility of inverter.
3, present embodiment serves as the control core with Programmable Logic Controller PALCE22V10Q, adopt digitlization dynamic characteristic accurate control technique, system has good dynamic characteristic, is easy to realize many characteristics and multi-functional conversion, unified adjusting, mate heating parameters automatically, simple to operate, quick.Because sintering adopts the graphite material of pure resistance character as the heating carrier, direct current/pulse direct current the mode that is output as of the present utility model, there is not industrial frequency AC heating process zero crossing problem, make heating rapidly accurately, improved the processing performance of sintering process greatly, make the controllability of technical process be greatly improved, can further cut down the consumption of energy, improve sintering quality.
4, present embodiment is provided with more comprehensive safety detection and protective circuit; comprise overvoltage, under-voltage, overcurrent, overheated or the like protective circuit; improved the fail safe and the reliability of the sintering energy effectively, and possessed automatic power network fluctuation compensate function---under the situation of power network fluctuation ± 15%, can not influence the operate as normal of sintering power supply.
As mentioned above, can realize the utility model preferably.
Claims (7)
1, the soft switch I GBT contravariant of a kind of high-power high-frequency sintering power supply is characterized in that, comprises that many group host power supply circuits, program controling module interconnect composition, and described many group host power supply circuits are parallel with one another, and are connected with program controling module respectively; Described host power supply circuit comprises that main circuit and control circuit interconnect composition; Described main circuit comprises rectification filtering module, high-frequency inversion module, power transformation module, rectification is level and smooth and the stabilising arc module connects to form successively, described rectification filtering module also is connected with three-phase alternating current input power supply, and described rectification smoothly also is connected with load with the stabilising arc module; Described control circuit comprises the current/voltage detection module, the given module of parameter, comparator, control system, pulse width modulation module and high-frequency drive module interconnect composition, one end of described current/voltage detection module is connected with load, the other end is connected with the input of comparator, the given module of described parameter is connected with another input of comparator, the output of described comparator is connected with control system, described control system and pulse width modulation module, the high-frequency drive module connects successively, also be connected with program controling module, described high-frequency drive module is connected with the high-frequency inversion module.
2, the soft switch I GBT contravariant of a kind of high-power high-frequency according to claim 1 sintering power supply, it is characterized in that, described host power supply circuit comprises safety protective circuit, and described safety protective circuit comprises that net pressure detection module, overheated detection module, security protection module interconnect composition; Described net presses an end of detection module to be connected with three-phase alternating current input power supply, and the other end is connected with security protection module, and described security protection module also is connected with overheated detection module, pulse width modulation module respectively.
3, the soft switch I GBT contravariant of a kind of high-power high-frequency according to claim 2 sintering power supply; it is characterized in that; one end of described overheated detection module is connected with the radiator and the power transformation module of high-frequency inversion module respectively, and the other end is connected with security protection module.
4, the soft switch I GBT contravariant of a kind of high-power high-frequency according to claim 1 sintering power supply is characterized in that, described control system is mainly interconnected by Programmable Logic Controller PALCE22V10Q, inverter chip ULN2003A and auxiliary circuit to be formed.
5, the soft switch I GBT contravariant of a kind of high-power high-frequency according to claim 1 sintering power supply, it is characterized in that described pulse width modulation module is mainly interconnected by integrated control chip UC3879 of error amplifying circuit, inverter chip ULN2003A and phase shift and auxiliary circuit to be formed.
6, the soft switch I GBT contravariant of a kind of high-power high-frequency according to claim 1 sintering power supply, it is characterized in that described high-frequency drive module is mainly interconnected by two high-frequency pulse transformer M1 and M2, chip 2SK1417, M74HC4049 and CD4011 and auxiliary circuit to be formed.
7, the soft switch I GBT contravariant of a kind of high-power high-frequency according to claim 1 sintering power supply is characterized in that described program controling module mainly is made up of NE555, LM324, LM393, CD4066 and peripheral circuit.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102281013A (en) * | 2011-08-25 | 2011-12-14 | 华南理工大学 | Multi-module parallel power supply device and cooperative control method thereof |
| CN102487215A (en) * | 2010-12-01 | 2012-06-06 | 寇地斯股份有限公司 | Power device using module current to control parallel running of circuit |
| CN107294401A (en) * | 2017-06-27 | 2017-10-24 | 恩平市枫王电器科技有限公司 | A kind of high-density package structure energy-saving electric power integrated system module |
| CN109167521A (en) * | 2018-11-09 | 2019-01-08 | 佛山市杰创科技有限公司 | A kind of module combined type high-power high-frequency switch power supply and its workflow |
| CN109634186A (en) * | 2018-12-25 | 2019-04-16 | 山东技师学院 | A kind of intermediate frequency furnace intelligence melting centralized control system and method |
| CN116613970A (en) * | 2023-07-20 | 2023-08-18 | 苏州腾圣技术有限公司 | Miniature inversion side MOSFET drive control circuit |
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2007
- 2007-11-15 CN CNU2007200595760U patent/CN201118463Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102487215A (en) * | 2010-12-01 | 2012-06-06 | 寇地斯股份有限公司 | Power device using module current to control parallel running of circuit |
| CN102487215B (en) * | 2010-12-01 | 2016-02-17 | 寇地斯股份有限公司 | Utilize the parallel running supply unit of blocks current control circuit |
| CN102281013A (en) * | 2011-08-25 | 2011-12-14 | 华南理工大学 | Multi-module parallel power supply device and cooperative control method thereof |
| CN102281013B (en) * | 2011-08-25 | 2014-06-11 | 华南理工大学 | Multi-module parallel power supply device and cooperative control method thereof |
| CN107294401A (en) * | 2017-06-27 | 2017-10-24 | 恩平市枫王电器科技有限公司 | A kind of high-density package structure energy-saving electric power integrated system module |
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| CN109167521A (en) * | 2018-11-09 | 2019-01-08 | 佛山市杰创科技有限公司 | A kind of module combined type high-power high-frequency switch power supply and its workflow |
| CN109634186A (en) * | 2018-12-25 | 2019-04-16 | 山东技师学院 | A kind of intermediate frequency furnace intelligence melting centralized control system and method |
| CN116613970A (en) * | 2023-07-20 | 2023-08-18 | 苏州腾圣技术有限公司 | Miniature inversion side MOSFET drive control circuit |
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