CN107770943A - A kind of great-power electronic cyclotron resonance heating system waveguide switch - Google Patents
A kind of great-power electronic cyclotron resonance heating system waveguide switch Download PDFInfo
- Publication number
- CN107770943A CN107770943A CN201610677368.0A CN201610677368A CN107770943A CN 107770943 A CN107770943 A CN 107770943A CN 201610677368 A CN201610677368 A CN 201610677368A CN 107770943 A CN107770943 A CN 107770943A
- Authority
- CN
- China
- Prior art keywords
- microwave
- wave guide
- waveguide
- straight wave
- ripple
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H7/00—Details of devices of the types covered by groups H05H9/00, H05H11/00, H05H13/00
- H05H7/14—Vacuum chambers
- H05H7/16—Vacuum chambers of the waveguide type
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H13/00—Magnetic resonance accelerators; Cyclotrons
- H05H13/005—Cyclotrons
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Constitution Of High-Frequency Heating (AREA)
Abstract
The invention belongs to microwave technical field, and in particular to a kind of Electron Cyclotron Resonance Heating system waveguide switch.The waveguide switch of the present invention includes 1 vacuum sealed box, 3 sections of ripple straight wave guides, 1 section of straight-through waveguide segment, 1 commutation waveguide, 1 facial plane speculum, 1 set of linear movement mechanism, 1 guide link, 1 vacuum corrugated pipe, 1 link flange, 1 motor lead screw, 1 stepper motor, 1 set of motor fixed rack and 1 set of electric machine control system, and the communication with electron cyclotron master control system is realized by Ethernet, realize the function that the microwave in the case where not influenceing Transmission system vacuum state switches to different loads, the switching of microwave path is smooth and reliable, and microwave power loss is small, a megawatt magnitude long pulse millimeter wave can be transmitted stability and high efficiency.
Description
Technical field
The invention belongs to microwave technical field, and in particular to a kind of great-power electronic cyclotron resonance heating system waveguide transitions
Switch.
Background technology
In fusion research, in order to by the temperature needed for plasma heating to fusion reaction, it usually needs use more
Kind heater meanses, Electron Cyclotron Resonance Heating is a kind of important plasma heating means.Electron Cyclotron Resonance Heating system
Mainly it is made up of wave source system, Transmission system, emission system and control and protection system etc., single power for covering system is usually that 500kW is arrived
1MW.Wherein, the main function of Transmission system is that the High-Power Microwave that wave source system exports efficiently is transferred into emission system,
So as to be injected into heating plasma in plasma.
For Electron Cyclotron Resonance Heating system communications line, when the microwave power of transmission is more than 500kW, in order to have
Effect avoids transmission line from causing sparking because of gas breakdown, it usually needs using vacuum transmission line, is better than the vacuum of transmission line
10-3Pa.For such transmission line, in order to not dismount Transmission system and not destroy the bar of vacuum transmission line vacuum state
Under part, realize conversion of the microwave between the true load (device plasma) of injection and microwave hypersorption water load, in order to
Difference requires lower and carries out electron cyclotron system debug and tokamak device experiment, it is necessary to which one kind can be carried out between different loads
The waveguide switch of switching.Above-mentioned waveguide switch needs to take into account to meet following technical requirements：(1) positioning precision meets to want
Ask, accurate switching of the microwave transmission direction between different paths can be realized, to ensure the difference inside waveguide switch
The collimation of microwave path and Transmission system, so as to effectively avoid the generation of spark phenomenon；(2) as a kind of transmission high power length
The transmission part of Impulse Millimeter Wave, it is desirable to which the microwave power loss caused by waveguide switch should be as small as possible, to ensure to pass
The efficiency of defeated system；(3) consider that waveguide switch will be used in vacuum transmission system, its vacuum level requirements is 10-3Pa, very
Empty leak rate requirement is 10-9Pa·m3/ s, it is desirable to which the part does not influence Transmission system vacuum when carrying out the switching of microwave path；
(4) because electron cyclotron system is huge, waveguide switch action is performed during experiment for the ease of staff, it is desirable to Neng Gou
Control room carries out long-range accurate control, and brings into electron cyclotron turn-key system.
The present invention have developed one kind and be applied in electron cyclotron high power millimeter wave vacuum transmission system, low-loss, Gao Ding
Position precision, the waveguide switch of remote-controllable, have taken into account any of the above technical requirements.
The content of the invention
The purpose of the present invention is to be directed to drawbacks described above, there is provided a kind of to can be used in vacuum environment realizing the switching of microwave path
Waveguide switch.Solve vacuum static seal, vacuum dynamic seal, linear the shift position accurately technical barrier such as control, ensure true
The Automated condtrol that microwave path is smooth under Altitude, reliably switches；By rationally designing microwave channel components interior tooth form knot
Structure, microwave power loss is effectively reduced, ensure that waveguide switch can stablize transmission long pulse, high power, wide-band millimeter
Ripple.
Technical scheme is as described below：
A kind of great-power electronic cyclotron resonance heating system waveguide switch, including 1 four port vacuum sealed box, ripple
Line straight wave guide, ripple straight wave guide, ripple straight wave guide, it is true to lead directly to waveguide segment, commutation waveguide and linear movement mechanism, four port
The a port of empty seal box is microwave input port, and two ports are microwave output port and microwave output port；Four end
The microwave input port of mouth vacuum sealed box is connected with ripple straight wave guide, and microwave output port is connected with ripple straight wave guide, and ripple is straight
Waveguide is connected with microwave output port.
A kind of great-power electronic cyclotron resonance heating system waveguide switch, the straight wave guide, ripple straight wave guide and ripple
The length of line straight wave guide is 250mm.
A kind of great-power electronic cyclotron resonance heating system waveguide switch, the straight-through waveguide segment connect with commutation waveguide
After connecing, a microwave path changeover module is formed in vacuum sealed box, the microwave path changeover module is arranged on 1 set linearly
On motion；Plane mirror is provided with the commutation waveguide.
A kind of great-power electronic cyclotron resonance heating system waveguide switch, after the plane silo microwave reflection,
Transmission path switch to from ripple straight wave guide reach commutation waveguide reach ripple straight wave guide again.
A kind of great-power electronic cyclotron resonance heating system waveguide switch, it is close that described commutation waveguide is moved to vacuum
During the joint sealing leftmost side, the microwave input of straight-through waveguide segment and output port dock with ripple straight wave guide and ripple straight wave guide respectively,
Microwave transmission path reaches straight-through waveguide segment for ripple straight wave guide and reaches line straight wave guide again；When straight-through waveguide segment, to be moved to vacuum close
During the joint sealing rightmost side, the microwave for the waveguide that commutates inputs and output port with ripple straight wave guide and ripple straight wave guide with docking respectively,
After plane mirror reflection of the microwave through being fixed in commutation waveguide, transmission path switches to from ripple straight wave guide and reaches commutation ripple
Lead and reach ripple straight wave guide again.
A kind of great-power electronic cyclotron resonance heating system waveguide switch, the ripple straight wave guide are that microwave input is logical
Road, ripple straight wave guide are that microwave leads directly to output channel, and ripple straight wave guide is 90 degree of commutation output channels of microwave.
A kind of great-power electronic cyclotron resonance heating system waveguide switch, described vacuum sealed box are internally provided with
Guide link, guide link one end are connected with microwave path changeover module in vacuum sealed box, are fixed in commutation waveguide, are oriented to
The other end of connecting rod is connected with the link flange being placed in outside vacuum sealed box；At the 4th end of adpting flange and vacuum sealed box
Vacuum dynamic seal is done by vacuum corrugated pipe between mouthful.
A kind of great-power electronic cyclotron resonance heating system waveguide switch, it is provided with outside described vacuum sealed box
Motor lead screw, one end of the motor lead screw are connected with adpting flange, and the other end is connected with stepper motor.
A kind of great-power electronic cyclotron resonance heating system waveguide switch, the motor pass through 1 set of motor control system
System realizes its parameter setting and rotates control, and realizes the communication with electron cyclotron master control system by Ethernet.
Beneficial effects of the present invention are：The invention mainly relates to the automation control of the switching of the microwave path under vacuum environment
System, main body mechanism are placed in closed vacuum chamber, and power source is placed in outside vacuum chamber, and rational static and dynamic sealing structure, which combines, ensures height
Vacuum, while low cost solves two problems of vacuum sealing and linear position precision, simple for structure, easy access and dimension
Shield.Electron Cyclotron Resonance Heating system waveguide switch microwave transmission suitable for high power millimeter wave transmission line of the present invention
The switching in path, the switching of microwave path is smooth and reliable under vacuum, and positioning precision is high, and microwave power loss is small.
Brief description of the drawings
Fig. 1 is Electron Cyclotron Resonance Heating system waveguide switch structural representation of the present invention；
Fig. 2 is that electronics of the present invention plays back resonant heating system waveguide switch monnolithic case schematic diagram；
In figure, 1- vacuum sealed box；2- ripple straight wave guides；3- ripple straight wave guides；4- ripple straight wave guides；5- leads directly to waveguide
Section；6- commutation waveguides；7- plane mirrors；8- linear movement mechanisms；9- guide links；10- vacuum corrugated pipes；11- links method
It is blue；12- motor lead screws；13- stepper motors；22- microwave input ports；33- microwave output ports；44- microwave output ports；55-
The 4th port of vacuum sealed box.
Embodiment
The Electron Cyclotron Resonance Heating system waveguide switch of the present invention is carried out in detail with reference to the accompanying drawings and examples
Describe in detail bright.
A kind of primary structure of Electron Cyclotron Resonance Heating system waveguide switch includes：1 four port vacuum sealing
Case 1, three ports in four port vacuum sealed box 1 pass through ripple straight wave guide 2, ripple straight wave guide 3, ripple straight wave guide 4, respectively
It is connected with the transmission line of Transmission system, the length of the ripple straight wave guide 2, ripple straight wave guide 3 and ripple straight wave guide 4 is 250mm；
The a port of four port vacuum sealed box 1 is microwave input port 22, and two ports are microwave output port 33 and microwave
Output port 44；The microwave input port 22 of four port vacuum sealed box 1 is connected with ripple straight wave guide 2, microwave output port
33 are connected with ripple straight wave guide 3, and ripple straight wave guide 4 is connected with microwave output port 44.
After one section of straight-through waveguide segment 5 is closely connected with commutation waveguide 6, a microwave path changeover module is formed, it is described micro-
Ripple path changeover module is arranged on 1 set of linear movement mechanism 8, realizes it in vacuum sealed box by 1 set of linear movement mechanism 8
Linear reciprocal movement in 1；Plane mirror 7 is fixed in commutation waveguide 6, for microwave reflection to be inputted to perpendicular to microwave
The path in direction；Guide link 9 is placed in 1 in vacuum sealed box, and the one end of guide link 9 is cut with microwave path in vacuum sealed box 1
Component connection is changed, is fixed in commutation waveguide 6, the other end of guide link 9 and the link flange for being placed in the outside of vacuum sealed box 1
11 connections；One end of motor lead screw 12 outside vacuum sealed box is connected with adpting flange 11, and the other end is connected with stepper motor 13,
Vacuum dynamic seal is done by vacuum corrugated pipe 10 between the 4th port 55 of adpting flange 11 and vacuum sealed box 1, and by vacuum
Linear motion outside seal box 1 is delivered in vacuum sealed box 1；1 set of electric machine control system realizes the parameter to stepper motor 13
Control is set and rotated, and the communication with electron cyclotron master control system is realized by Ethernet.
In the present embodiment, Electron Cyclotron Resonance Heating system waveguide switch switches microwave transmission by following methods and led to
Road：Ripple straight wave guide 2 is microwave input channel, and ripple straight wave guide 3 is that microwave leads directly to output channel, and ripple straight wave guide 4 is microwave
90 degree of commutation output channels；When the commutation waveguide 6 in vacuum sealed box 1 is moved to 1 leftmost side of vacuum sealed box, waveguide is led directly to
The microwave input of section 5 and output port dock with ripple straight wave guide 2 and ripple straight wave guide 3 respectively, and microwave transmission path is ripple
Straight wave guide 2 reaches straight-through waveguide segment 5 and reaches line straight wave guide 3 again；When the straight-through waveguide segment 5 in vacuum sealed box 1 is moved to vacuum
During 1 rightmost side of seal box, commutation waveguide 6 microwave input and output port with respectively with ripple straight wave guide 2 and ripple straight wave guide 4
Docking, after plane mirror 7 of the microwave through being fixed in commutation waveguide 6 reflects, transmission path switches to be passed from ripple straight wave guide 2
Ripple straight wave guide 4 is reached again to commutation waveguide 6.
Claims (9)
- A kind of 1. great-power electronic cyclotron resonance heating system waveguide switch, it is characterised in that：1 four port vacuum sealing Case (1), ripple straight wave guide (2), ripple straight wave guide (3), ripple straight wave guide (4), lead directly to waveguide segment (5), commutation waveguide (6) and line Property motion (8), it is characterised in that：The a port of four port vacuum sealed box (1) is microwave input port (22), two Individual port is microwave output port (33) and microwave output port (44)；The microwave input of four port vacuum sealed box (1) Mouthful (22) are connected with ripple straight wave guide (2), and microwave output port (33) is connected with ripple straight wave guide (3), ripple straight wave guide (4) and Microwave output port (44) is connected.
- A kind of 2. great-power electronic cyclotron resonance heating system waveguide switch as claimed in claim 1, it is characterised in that： The length of the straight wave guide (2), ripple straight wave guide (3) and ripple straight wave guide (4) is 250mm.
- A kind of 3. great-power electronic cyclotron resonance heating system waveguide switch as claimed in claim 1, it is characterised in that： After the straight-through waveguide segment (5) is connected with commutation waveguide (6), a microwave path switch groups are formed in vacuum sealed box (1) Part, the microwave path changeover module are arranged on 1 set of linear movement mechanism (8)；Plane is provided with the commutation waveguide (6) Speculum (7).
- A kind of 4. great-power electronic cyclotron resonance heating system waveguide switch as claimed in claim 3, it is characterised in that： After plane silo (7) microwave reflection, transmission path switch to from ripple straight wave guide (2) reach commutation waveguide (6) pass again To ripple straight wave guide (4).
- A kind of 5. great-power electronic cyclotron resonance heating system waveguide switch as claimed in claim 1, it is characterised in that： When described commutation waveguide (6) is moved to vacuum sealed box (1) leftmost side, microwave input and the output end of waveguide segment (5) are led directly to Mouth docks with ripple straight wave guide (2) and ripple straight wave guide (3) respectively, and microwave transmission path reaches straight-through for ripple straight wave guide (2) Waveguide segment (5) reaches line straight wave guide (3) again；When straight-through waveguide segment (5) is moved to vacuum sealed box (1) rightmost side, commutate ripple Lead (6) microwave input and output port with being docked respectively with ripple straight wave guide (2) and ripple straight wave guide (4), microwave is through fixation After plane mirror (7) reflection in commutation waveguide (6), transmission path switches to from ripple straight wave guide (2) and reaches commutation ripple Lead (6) and reach ripple straight wave guide (4) again.
- A kind of 6. great-power electronic cyclotron resonance heating system waveguide switch as claimed in claim 1, it is characterised in that： The ripple straight wave guide (2) is microwave input channel, and ripple straight wave guide (3) is that microwave leads directly to output channel, ripple straight wave guide (4) For 90 degree of commutation output channels of microwave.
- A kind of 7. great-power electronic cyclotron resonance heating system waveguide switch as claimed in claim 1, it is characterised in that： Described vacuum sealed box (1) is internally provided with guide link (9), guide link (9) one end and vacuum sealed box (1) interior microwave Path changeover module connects, and is fixed in commutation waveguide (6), and the other end of guide link (9) is with being placed in vacuum sealed box (1) outside Link flange (11) connection in face；Pass through vacuum between the 4th port (55) of adpting flange (11) and vacuum sealed box (1) Bellows (10) does vacuum dynamic seal.
- A kind of 8. great-power electronic cyclotron resonance heating system waveguide switch as claimed in claim 1, it is characterised in that： Motor lead screw (12), one end of the motor lead screw (12) and adpting flange are provided with outside described vacuum sealed box (1) (11) connect, the other end is connected with stepper motor (13).
- A kind of 9. great-power electronic cyclotron resonance heating system waveguide switch as claimed in claim 8, it is characterised in that： The motor (13) is realized its parameter setting and rotated and controlled by 1 set of electric machine control system, and is realized and electricity by Ethernet The communication of son convolution master control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610677368.0A CN107770943A (en) | 2016-08-17 | 2016-08-17 | A kind of great-power electronic cyclotron resonance heating system waveguide switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610677368.0A CN107770943A (en) | 2016-08-17 | 2016-08-17 | A kind of great-power electronic cyclotron resonance heating system waveguide switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107770943A true CN107770943A (en) | 2018-03-06 |
Family
ID=61261176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610677368.0A Pending CN107770943A (en) | 2016-08-17 | 2016-08-17 | A kind of great-power electronic cyclotron resonance heating system waveguide switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107770943A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112928405A (en) * | 2019-12-05 | 2021-06-08 | 核工业西南物理研究院 | Water-cooling type megawatt-level high-power long-second-stroke millimeter wave transmission waveguide change-over switch |
| CN114439957A (en) * | 2020-11-06 | 2022-05-06 | 新奥科技发展有限公司 | Gate valve, microwave transmission device with same and microwave heating system |
| CN114597613A (en) * | 2020-12-03 | 2022-06-07 | 新奥科技发展有限公司 | Waveguide switch and microwave heating system |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB710204A (en) * | 1952-02-14 | 1954-06-09 | Decca Record Co Ltd | Improvements in or relating to wave guide switches |
| GB8616018D0 (en) * | 1986-07-01 | 1986-08-06 | English Electric Valve Co Ltd | Microwave switch/limiter |
| US4687895A (en) * | 1984-07-30 | 1987-08-18 | Superwave Technology, Inc. | Conveyorized microwave heating system |
| US5451918A (en) * | 1994-05-04 | 1995-09-19 | Teledyne Industries, Inc. | Microwave multi-port transfer switch |
| JPH11195483A (en) * | 1998-01-06 | 1999-07-21 | Mitsubishi Electric Corp | Microwave heating device and wave-guiding channel change-over device |
| CN101083869A (en) * | 2006-05-31 | 2007-12-05 | 中国科学院高能物理研究所 | Large power waveguide vacuum valve |
| CN103260837A (en) * | 2010-12-23 | 2013-08-21 | 伊士曼化工公司 | Wood heater with enhanced microwave launching system |
| WO2014056203A1 (en) * | 2012-10-12 | 2014-04-17 | 美的集团股份有限公司 | Door body interlock switch and microwave cooking device utilizing the door body interlock switch |
| CN206181533U (en) * | 2016-08-17 | 2017-05-17 | 核工业西南物理研究院 | Waveguide change over switch of power electronic cyclotron resonance heating system |
-
2016
- 2016-08-17 CN CN201610677368.0A patent/CN107770943A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB710204A (en) * | 1952-02-14 | 1954-06-09 | Decca Record Co Ltd | Improvements in or relating to wave guide switches |
| US4687895A (en) * | 1984-07-30 | 1987-08-18 | Superwave Technology, Inc. | Conveyorized microwave heating system |
| GB8616018D0 (en) * | 1986-07-01 | 1986-08-06 | English Electric Valve Co Ltd | Microwave switch/limiter |
| US5451918A (en) * | 1994-05-04 | 1995-09-19 | Teledyne Industries, Inc. | Microwave multi-port transfer switch |
| JPH11195483A (en) * | 1998-01-06 | 1999-07-21 | Mitsubishi Electric Corp | Microwave heating device and wave-guiding channel change-over device |
| CN101083869A (en) * | 2006-05-31 | 2007-12-05 | 中国科学院高能物理研究所 | Large power waveguide vacuum valve |
| CN103260837A (en) * | 2010-12-23 | 2013-08-21 | 伊士曼化工公司 | Wood heater with enhanced microwave launching system |
| WO2014056203A1 (en) * | 2012-10-12 | 2014-04-17 | 美的集团股份有限公司 | Door body interlock switch and microwave cooking device utilizing the door body interlock switch |
| CN206181533U (en) * | 2016-08-17 | 2017-05-17 | 核工业西南物理研究院 | Waveguide change over switch of power electronic cyclotron resonance heating system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112928405A (en) * | 2019-12-05 | 2021-06-08 | 核工业西南物理研究院 | Water-cooling type megawatt-level high-power long-second-stroke millimeter wave transmission waveguide change-over switch |
| CN114439957A (en) * | 2020-11-06 | 2022-05-06 | 新奥科技发展有限公司 | Gate valve, microwave transmission device with same and microwave heating system |
| CN114439957B (en) * | 2020-11-06 | 2024-04-09 | 新奥科技发展有限公司 | Gate valve, microwave transmission device with same and microwave heating system |
| CN114597613A (en) * | 2020-12-03 | 2022-06-07 | 新奥科技发展有限公司 | Waveguide switch and microwave heating system |
| CN114597613B (en) * | 2020-12-03 | 2024-01-30 | 新奥科技发展有限公司 | Waveguide switch and microwave heating system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107770943A (en) | A kind of great-power electronic cyclotron resonance heating system waveguide switch | |
| CN206181533U (en) | Waveguide change over switch of power electronic cyclotron resonance heating system | |
| Celanovic et al. | A new distributed digital controller for the next generation of power electronics building blocks | |
| EP3371636A1 (en) | Fiber-optic feedthroughs for superconducting systems | |
| CN109686636B (en) | Magnetron structure with modularization characteristic | |
| CN104184108A (en) | DC circuit breaker and control method thereof | |
| CN108093550A (en) | A kind of new quick rotation high power electronic cyclotron wave transmitting antenna | |
| CN101309066A (en) | One-master-driving-two system of industrial frequency transformer realized on basis of digital signal processor (DSP) | |
| CN211125928U (en) | Water-cooling type megawatt-level high-power long-second-stroke millimeter wave transmission waveguide change-over switch | |
| CN101262171A (en) | Voltage adjusting circuit for cycle time division control power | |
| CN114002979A (en) | Control system of lightweight accelerator | |
| CN204616188U (en) | Wave ekctrinl inear accelerator | |
| Belomestnykh | Overview of input power coupler developments, pulsed and CW | |
| CN208804306U (en) | A kind of grouping centralized-control type valve control case that the operated pneumatic valve for engineering of water treatment controls | |
| CN112928405A (en) | Water-cooling type megawatt-level high-power long-second-stroke millimeter wave transmission waveguide change-over switch | |
| CN208055460U (en) | A kind of vacuum coating equipment | |
| CN102263490A (en) | High-voltage frequency converter power unit drive-pulse transmission and communication system | |
| CN102933019B (en) | Simulation target system in a kind of cyclotron target chamber | |
| CN108239764B (en) | Vacuum coating machine | |
| CN105840899A (en) | Control cabinet for split type electric actuating mechanism | |
| CN110398661A (en) | A kind of multi-channel high-accuracy SiC power module gate pole leakage tests system | |
| CN211088211U (en) | Appearance inspection device for producing high-power semiconductor device | |
| CN110266179A (en) | A kind of layout method and SiC MOSFET current transformer of SiC MOSFET current transformer | |
| CN203882142U (en) | 64 emitter following output driving module circuit | |
| CN204089576U (en) | The IGBT drive circuit of two optical fiber interface |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |