CN201655110U - Transparent module type power electronic comprehensive experimental and practical training platform - Google Patents
Transparent module type power electronic comprehensive experimental and practical training platform Download PDFInfo
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- CN201655110U CN201655110U CN2010201105968U CN201020110596U CN201655110U CN 201655110 U CN201655110 U CN 201655110U CN 2010201105968 U CN2010201105968 U CN 2010201105968U CN 201020110596 U CN201020110596 U CN 201020110596U CN 201655110 U CN201655110 U CN 201655110U
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Abstract
The utility model discloses a transparent module type power electronic comprehensive experimental and practical training platform. The platform comprises various transparent circuit modules and a plurality of independent circuit connecting wires; the various transparent circuit modules comprise nine types of circuit modules, namely power modules, control modules, switching device modules, resistor modules, inductor modules, capacitor modules, voltage measuring modules, current measuring modules and load modules, and the number of each type of circuit module is larger than one; and the circuit modules in the nine types of circuit modules are connected with each other through the circuit connecting wires, and can be connected in various combinational connection manners and correspondingly form various types of power electronic experimental circuits. The platform has the advantages of reasonable design, convenient assembly and wire connection, five-face transparent structure of each circuit module, high practical value and comprehensive function, increases the operating ability of students, improves the experimental effect, and simultaneously provides an experimental platform which the students can comprehensively utilizes various knowledge in the current major or subject to build with own hands.
Description
Technical field
The utility model relates to a kind of experimental real-training platform, especially relates to a kind of transparent modular power electronics Comprehensive Experiment real training platform.
Background technology
Traditional Power Electronic Experimentation device is a kind ofly to divide the experiment porch of module with experimental project, and module adopts hermetically sealed opaque packing forms, has the advantage that is easy to finish experiment.But, in the actual use, mainly there is following drawback in above-mentioned traditional Power Electronic Experimentation device: 1) press the module that experimental project is divided, the student only need get final product by the wiring of description of test book, experimental project is easy to finish, but do not consider during the Most students wiring what circuit is, experiment effect is bad.2) experiment module is hermetic opaque encapsulation, and the student does experiment and the time can't see practical devices and circuit, causes the concept of image not strong, thereby Most students does not know still what employed device and circuit structure be on earth after finishing experiment.3) the integrated encapsulation of former experiment porch can only be carried out the performance verification of intrinsic circuit, can't carry out the comprehensive Design experiment.
In recent years, along with the requirement to undergraduate's ability of practice improves constantly, the status that the comprehensive Design experiment accounts in teaching is more and more important.Ministry of Education's teaching evaluation stipulates that must there be a certain proportion of comprehensive Design experiment in colleges and universities in requiring, this will realisticly test the performance verification that platform can not only carry out intrinsic circuit, also require student's can do it yourself as required to build flexibly circuit of various personalizations, carry out the experiment of comprehensive Design type.And existing traditional experiment platform can't satisfy this requirement, can't carry out the experiment of specialty or branch of learning comprehensive; And existing traditional experiment platform is every subject one a cover experiment porch, can't satisfy student's professional knowledge of applying in a flexible way and carry out the requirement of Comprehensive Experiment in the specialty, more can't finish the branch of learning comprehensive experiment.
The utility model content
Technical problem to be solved in the utility model is at above-mentioned deficiency of the prior art, a kind of transparent modular power electronics Comprehensive Experiment real training platform is provided, it is reasonable in design, assembling and easy-to-connect, each circuit module all are set to five transparent configurations and practical value height, complete function, can simple and convenient this specialty of realization or subject in Comprehensive Experiment.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of transparent modular power electronics Comprehensive Experiment real training platform is characterized in that: comprise independently circuit connecting wire of multiple transparent mode circuit module and Duo Gen; It is a plurality of that described multiple transparent mode circuit module comprises that the quantity of power module, control module, switching device module, resistive module, inductance module, capacitance module, voltage measurement module, current measurement module and nine kinds of circuit modules of load blocks and described nine kinds of circuit modules is, described transparent mode circuit module by transparent outer cover, be laid in transparent outer cover inner and its be provided with the electronic circuit board of corresponding electronic circuit and be installed in the transparent outer cover outside and form with a plurality of connection terminals that the electronic circuit that is arranged on the described electronic circuit board joins; Connect by circuit connecting wire between the connection terminal of a plurality of circuit modules in described nine kinds of circuit modules, and described nine kinds of circuit modules can connect and corresponding composition polytype Power Electronic Experimentation circuit with multiple combination connecting mode.
Described transparent outer cover is a rectangular shape.
Described transparent outer cover comprises by 5 transparent panels and forming and the transparent shell and the opaque panel of spiral-lock on transparent shell of upper opening.
Be printed with the electronic-circuit diagram of set electronic circuit on the described electronic circuit board on the upper surface of described opaque panel, described a plurality of connection terminal is installed on the opaque panel, described electronic-circuit diagram is provided with a plurality of wiring points, and on the described a plurality of wiring points of the corresponding installation of described a plurality of connection terminal.
The full control device control module that described control module comprises half control device control module that the switching device module of being made up of half control type device is controlled, control the switching device module of being made up of the full-control type device and copped wave and three types of control modules of switch control module that chopper circuit and switching power circuit are controlled.
Set electronic circuit comprises that controller and the mode of operation selector switch of joining with controller respectively, trigger angle adjust potentiometer and digital display tube on the electronic circuit board of described control module.
Described switching device module comprises thyristor single-phase semi-bridge module, IGBT single-phase semi-bridge module, IGBT single tube module, MOSFET single-phase semi-bridge module, MOSFET single tube module, diode single-phase semi-bridge module and diode single tube module; Set electronic circuit is the single-phase semi-bridge circuit of being made up of two thyristors on the electronic circuit board of described thyristor single-phase semi-bridge module, set electronic circuit is the single-phase semi-bridge circuit of being made up of two IGBT modules on the electronic circuit board of described IGBT single-phase semi-bridge module, set electronic circuit is by an IGBT module on the electronic circuit board of IGBT single tube module, set electronic circuit is the single-phase semi-bridge circuit of being made up of two MOSFET pipes on the electronic circuit board of MOSFET single-phase semi-bridge module, set electronic circuit is a MOSFET pipe on the electronic circuit board of MOSFET single tube module, set electronic circuit is the single-phase semi-bridge circuit of being made up of two diodes on the electronic circuit board of diode single-phase semi-bridge module, and set electronic circuit is a diode on the electronic circuit board of diode single tube module.
Described connection terminal is a binding post, and the two ends of described circuit connecting wire are provided with the wiring joint that is used with binding post.
The utility model compared with prior art has the following advantages:
1, rationally novel in design, general design idea of the present utility model is that experimental circuit is decomposed into multiple basic unit module by basic function, specifically is to be divided into 14 kinds of experiment circuit modules, and the student finishes experiment by building basic unit module voluntarily.
2, the basic unit module design is flexibly succinct, can satisfy the demand of student's each experiment undergraduate stage, and can give full play to student's positive property, and the circuit that builds various personalizations comes out.The experiment module outer package adopts transparent design simultaneously, and the student can see the shape of practical devices, the bigger enjoyment that has excited student's study.
3, the alternative traditional experiment platform of this experimental provision also can complement one another with the traditional experiment platform, satisfies the needs of student's novelty, the experiment of comprehensive and designability.
4, each circuit module all makes five transparent and opaque structures of one side, transparent part is convenient to the true form of the various devices of observation of students, opaque one side is installed various connection terminals, and is printed with schematic block circuit diagram and other informations, is convenient to the student and grasps and operate.
5, practical value height, circuit and system must do it yourself when the division of basic unit module makes the student do experiment to build, in the process of building, promptly be familiar with and grasped circuit structure and system architecture, strengthened the effect of experiment, the cultivation that has improved students ' practical ability.
6, design comprehensively, the experiment porch circuit is resolved into basic unit module by device, both can make the student conveniently finish experiment, give full play to student's positive property again, build various personalized circuit according to oneself idea and come out, taken into full account the requirement of " easily finishing " and " dirigibility " two aspects.
7, basic unit module is the structure of each circuit module, makes each experiment all finish by being connected of different circuit modules, and the experiment of different courses also can be combined by increase part basic unit module and finish.Like this, this experimental system is combined and can be finished the comprehensive or branch of learning comprehensive experiment of specialty, and decomposing comes also can be used as the experiment porch of independent a branch of instruction in school.Thereby the utility model has strengthened the dirigibility of experiment, provides a platform that can fully utilize various knowledge in this specialty or the subject to the student.
In sum, the utility model is reasonable in design, assembling and easy-to-connect, each circuit module all are set to five transparent configurations and practical value height, complete function, when improving students ' practical ability and strengthening experiment effect, provide one to the student and can fully utilize the experiment porch that various knowledge take action on one's own to build in this specialty or the subject, can simple and convenient this specialty of realization or the interior Comprehensive Experiment of subject.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 concerns synoptic diagram for the utility model power supply wiring and control and each circuit module wiring of measuring after wiring is finished.
Fig. 2 is the theory diagram of the set electronic circuit of the utility model control module.
Fig. 3 is the structural representation of the utility model circuit module.
Description of reference numerals:
The 1-power module; The 2-control module; The 2-1-controller;
The 2-2-mode of operation is selected to open the 2-3-trigger angle and is adjusted potentiometer; The digital display tube of 2-4-; Close;
3-switching device module; The 4-resistive module; 5-inductance module;
The 6-capacitance module; The 7-voltage measurement module; The 8-current measurement module;
The 9-binding post; The 10-circuit connecting wire; The 11-1-transparent shell;
The opaque panel of 11-2-; The 12-electronic-circuit diagram; The 13-load blocks.
Embodiment
As shown in Figure 1, the utility model comprises independently circuit connecting wire 10 of multiple transparent mode circuit module and Duo Gen.Described multiple transparent mode circuit module comprises that the quantity of power module 1, control module 2, switching device module 3, resistive module 4, inductance module 5, capacitance module 6, voltage measurement module 7, current measurement module 8 and 13 9 kinds of circuit modules of load blocks and described nine kinds of circuit modules is a plurality of.Described transparent mode circuit module by transparent outer cover 11, be laid in transparent outer cover 11 inner and its be provided with the electronic circuit board of corresponding electronic circuit and be installed in transparent outer cover 11 outsides and form with a plurality of connection terminals that the electronic circuit that is arranged on the described electronic circuit board joins.Connect by circuit connecting wire 10 between the connection terminal of a plurality of circuit modules in described nine kinds of circuit modules, and described nine kinds of circuit modules can connect and corresponding composition polytype Power Electronic Experimentation circuit with multiple combination connecting mode.In the present embodiment, described connection terminal is a binding post 9, and the two ends of described circuit connecting wire 10 are provided with the wiring joint that is used with binding post 9.
In conjunction with Fig. 3, in the present embodiment, described transparent outer cover 11 is a rectangular shape.Described transparent outer cover 11 comprises by 5 transparent panels and forming and the transparent shell 11-1 and the opaque panel 11-2 of spiral-lock on transparent shell 11-1 of upper opening.Be printed with electronic circuit Figure 12 of set electronic circuit on the described electronic circuit board on the upper surface of described opaque panel 11-2, described a plurality of connection terminal is installed on the opaque panel 11-2, described electronic circuit Figure 12 is provided with a plurality of wiring points, and on the described a plurality of wiring points of the corresponding installation of described a plurality of connection terminal.
Particularly, described power module 1 provides experiment required power supply, is input as the three-phase alternating current civil power and has three tunnel outputs, wherein one the tunnel is output as interchange 50V, and three-phase and four-line uses for the occasion that needs AC power in the experiment; One the tunnel is direct current 50V, uses for the occasion that needs direct supply in the experiment; Another road is direct current 15V, uses for control module 2, and the tap that the while transformer is drawn an A phase 5V is also supplied with and used for control module 3 synchronously.All be serially connected with pilot lamp in every road output circuit of described power module 1 and indicate whether to have voltage output, and be provided with the reliable protection circuit, be used for ensureing the safety of the person and device.
As shown in Figure 2, set electronic circuit comprises that controller 2-1 and the mode of operation selector switch 2-2 that joins with controller 2-1 respectively, trigger angle adjust potentiometer 2-3 and digital display tube 2-4 on the electronic circuit board of described control module 2.The full control device control module that in the present embodiment, described control module 2 comprises half control device control module that the switching device module of being made up of half control type device 3 is controlled, control the switching device module of being made up of the full-control type device 3 and copped wave and three types of control modules of switch control module that chopper circuit and switching power circuit are controlled.
During actual the use, described control module 2 provides various control signals for experimental circuit, mainly is the signal that turns on and off of switching device, that is to say mainly to switch device blocks 3.Control.Described control module 2 is a core with single-chip microcomputer and DSP, can constitute open-loop control system, also can with voltage measurement module 7 and current measurement module 8 constituent ratio ring control system.The control interface of described controller 2-1 is a general-purpose interface, and the user can freely select to use control chips such as C8051F040, MSP430, TMS320F2812; The DLL (dynamic link library) of controller 2-1 is open to the user, so the student can oneself write various algorithms, carries out various novelties experiments.For dwindling the pressure of control module,, control module is divided into half control device control module, controls three types of three types of control modules of device control module and copped wave and switch control module entirely according to the difference of experiment apparatus.
Described half control device control module is rectification and the inversion (active inversion to being made up of thyristor mainly, the inversion of passive electrical flow pattern) circuit is controlled, and 2-2 can select to be operated in single phase half wave rectification by the mode of operation selector switch, the single-phase full wave rectification, the single-phase bridge full-controlled rectifier, the rectification of single-phase bridge half control, the inversion of single-phase bridge current mode, three phase half wave rectification, the three phase full bridge rectification, the three-phase semi-controlled bridge type rectification, the inversion of three-phase bridge current mode, AC power switch, the single phase ac regulation device, three phase ac controller, 13 kinds of mode of operations such as one-way communication power regulating eqiupment; Adjust potentiometer 2-3 by the knob trigger angle, can adjust the size of thyristor trigger angle.
Described full control device control module is mainly controlled the Power Electronic Circuit of being made up of full-control type devices such as IGBT module and MOSFET pipes, can select to be operated in eight kinds of mode of operations such as single-phase semi-bridge PWM rectification, unidirectional bridge-type PWM rectification, three-phase bridge PWM rectification, chopping AC regulator, the inversion of single-phase semi-bridge voltage-type, the inversion of unidirectional full-bridge voltage-type, the inversion of three-phase bridge voltage-type, tri-level inversion circuit by mode of operation selector switch 2-2; Adjust potentiometer 2-3 by the knob trigger angle, can adjust the size of dutycycle.
Described copped wave and switch control module are mainly controlled chopper circuit and switching power circuit, can select to be operated in 11 kinds of mode of operations such as buck chopper, boost chopper, buck copped wave, cuk copped wave, sepic copped wave, zeta copped wave, current reversibility copped wave, the reversible copped wave of bridge-type, the triple buck choppers of three-phase, semi-bridge type switching power supply, the experiment of Current Control pwm switch stabilized voltage supply by mode of operation selector switch 2-2; By expansion interface, can also there be the student to build other switching power circuits voluntarily; Adjust potentiometer 2-3 by the knob trigger angle, can adjust the size of dutycycle.
Described switching device module 3 comprises thyristor single-phase semi-bridge module, IGBT single-phase semi-bridge module, IGBT single tube module, MOSFET single-phase semi-bridge module, MOSFET single tube module, diode single-phase semi-bridge module and diode single tube module.Set electronic circuit is the single-phase semi-bridge circuit of being made up of two thyristors on the electronic circuit board of described thyristor single-phase semi-bridge module, set electronic circuit is the single-phase semi-bridge circuit of being made up of two IGBT modules on the electronic circuit board of described IGBT single-phase semi-bridge module, set electronic circuit is by an IGBT module on the electronic circuit board of IGBT single tube module, set electronic circuit is the single-phase semi-bridge circuit of being made up of two MOSFET pipes on the electronic circuit board of MOSFET single-phase semi-bridge module, set electronic circuit is a MOSFET pipe on the electronic circuit board of MOSFET single tube module, set electronic circuit is the single-phase semi-bridge circuit of being made up of two diodes on the electronic circuit board of diode single-phase semi-bridge module, and set electronic circuit is a diode on the electronic circuit board of diode single tube module.
Driving circuit and buffering that described thyristor single-phase semi-bridge inside modules also comprises two thyristors absorb circuit, for the ease of the gate electrode drive signals of observation of students thyristor, also leave test point in the gate pole position in addition.Driving circuit and buffering that described IGBT single-phase semi-bridge inside modules also comprises two thyristors absorb circuit; For the ease of the gate electrode drive signals of observation of students thyristor, also leave test point in addition in the gate pole position.MOSFET single-phase semi-bridge inside modules also comprises driving circuit and buffering absorbs circuit; For the ease of the observation of students gate electrode drive signals, also leave test point in addition in the gate pole position.
Described resistive module 4 can be set nine kinds of resistances such as 33 Europe, 40 Europe, 50 Europe, 100 Europe, 150 Europe, 200 Europe, 250 Europe, 300 Europe, 350 Europe, the switching of resistance rotates to diverse location by waver and sets, and the student can not cut off the power supply in experiment and changes resistance easily.Described inductance module 5 can be set 6 kinds of inductance value such as 0.33mH, 0.5mH, 1mH, 1.5mH, 2mH, 3mH, and the switching of inductance sense value rotates to diverse location by waver and sets, and the student can not cut off the power supply in experiment and changes inductance value easily.Described capacitance module 6 can be selected 667uF, 1000uF, 2000uF and four kinds of appearance values of 3000uF by waver.
The main effect of described voltage measurement module 7 and current measurement module 8 is combined-voltage and the ac and dc currents in the testing circuit, is convenient to make up various closed-loop control systems.
Described load blocks 13 comprises polytype loads such as multiple motor, bulb, resistance wire.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection domain of technical solutions of the utility model according to the utility model technical spirit.
Claims (8)
1. a transparent modular power electronics Comprehensive Experiment real training platform is characterized in that: comprise independently circuit connecting wire (10) of multiple transparent mode circuit module and Duo Gen; Described multiple transparent mode circuit module comprises power module (1), control module (2), switching device module (3), resistive module (4), inductance module (5), capacitance module (6), voltage measurement module (7), the quantity of current measurement module (8) and (13) nine kinds of circuit modules of load blocks and described nine kinds of circuit modules is a plurality of, and described transparent mode circuit module is by transparent outer cover (11), be laid in transparent outer cover (11) inner and its be provided with the electronic circuit board of corresponding electronic circuit and be installed in transparent outer cover (11) outside and form with a plurality of connection terminals that the electronic circuit that is arranged on the described electronic circuit board joins; Connect by circuit connecting wire (10) between the connection terminal of a plurality of circuit modules in described nine kinds of circuit modules, and described nine kinds of circuit modules can connect and corresponding composition polytype Power Electronic Experimentation circuit with multiple combination connecting mode.
2. according to the described transparent modular power electronics Comprehensive Experiment real training platform of claim 1, it is characterized in that: described transparent outer cover (11) is a rectangular shape.
3. according to the described transparent modular power electronics Comprehensive Experiment real training platform of claim 2, it is characterized in that: described transparent outer cover (11) comprises by 5 transparent panels and forming and the transparent shell (11-1) and the opaque panel (11-2) of spiral-lock on transparent shell (11-1) of upper opening.
4. according to the described transparent modular power electronics Comprehensive Experiment real training platform of claim 3, it is characterized in that: the electronic-circuit diagram (12) that is printed with set electronic circuit on the described electronic circuit board on the upper surface of described opaque panel (11-2), described a plurality of connection terminal is installed on the opaque panel (11-2), described electronic-circuit diagram (12) is provided with a plurality of wiring points, and on the described a plurality of wiring points of the corresponding installation of described a plurality of connection terminal.
5. according to the described transparent modular power electronics Comprehensive Experiment real training platform of each claim in the claim 1 to 4, it is characterized in that: the full control device control module that described control module (2) comprises half control device control module that the switching device module of being made up of half control type device (3) is controlled, control the switching device module of being made up of the full-control type device (3) and copped wave and three types of control modules of switch control module that chopper circuit and switching power circuit are controlled.
6. according to the described transparent modular power electronics Comprehensive Experiment real training platform of each claim in the claim 1 to 4, it is characterized in that: set electronic circuit comprises that controller (2-1) and the mode of operation selector switch (2-2) of joining with controller (2-1) respectively, trigger angle adjust potentiometer (2-3) and digital display tube (2-4) on the electronic circuit board of described control module (2).
7. according to the described transparent modular power electronics Comprehensive Experiment real training platform of each claim in the claim 1 to 4, it is characterized in that: described switching device module (3) comprises thyristor single-phase semi-bridge module, IGBT single-phase semi-bridge module, IGBT single tube module, MOSFET single-phase semi-bridge module, MOSFET single tube module, diode single-phase semi-bridge module and diode single tube module; Set electronic circuit is the single-phase semi-bridge circuit of being made up of two thyristors on the electronic circuit board of described thyristor single-phase semi-bridge module, set electronic circuit is the single-phase semi-bridge circuit of being made up of two IGBT modules on the electronic circuit board of described IGBT single-phase semi-bridge module, set electronic circuit is by an IGBT module on the electronic circuit board of IGBT single tube module, set electronic circuit is the single-phase semi-bridge circuit of being made up of two MOSFET pipes on the electronic circuit board of MOSFET single-phase semi-bridge module, set electronic circuit is a MOSFET pipe on the electronic circuit board of MOSFET single tube module, set electronic circuit is the single-phase semi-bridge circuit of being made up of two diodes on the electronic circuit board of diode single-phase semi-bridge module, and set electronic circuit is a diode on the electronic circuit board of diode single tube module.
8. according to the described transparent modular power electronics Comprehensive Experiment real training platform of each claim in the claim 1 to 4, it is characterized in that: described connection terminal is binding post (9), and the two ends of described circuit connecting wire (10) are provided with the wiring joint that is used with binding post (9).
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| CN2010201105968U CN201655110U (en) | 2010-02-08 | 2010-02-08 | Transparent module type power electronic comprehensive experimental and practical training platform |
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| CN2010201105968U CN201655110U (en) | 2010-02-08 | 2010-02-08 | Transparent module type power electronic comprehensive experimental and practical training platform |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102708740A (en) * | 2012-06-15 | 2012-10-03 | 黑龙江大学 | Manual input ocular demonstration bridge chopping and inverting experimental circuit |
| CN103337212A (en) * | 2013-07-05 | 2013-10-02 | 无锡商业职业技术学院 | Automatic switching value control practical training device |
| CN103778814A (en) * | 2014-01-13 | 2014-05-07 | 重庆市树德科技有限公司 | Skill examination scoring system |
| CN104730959A (en) * | 2015-03-20 | 2015-06-24 | 佛山市华材职业技术学校 | Intelligent instrument and power electronic practical training device and control method thereof |
| CN104952330A (en) * | 2014-03-31 | 2015-09-30 | 南京化工职业技术学院 | Novel light dimming lamp practical training device |
| CN106373448A (en) * | 2016-10-08 | 2017-02-01 | 深圳国泰安教育技术股份有限公司 | Automotive electronic wiring experimental device and method |
| CN109192019A (en) * | 2018-10-26 | 2019-01-11 | 山东远大朗威教育科技股份有限公司 | The changeable Experiment of Electrical Circuits system of DIS |
| CN110930836A (en) * | 2019-11-18 | 2020-03-27 | 湖北工程学院 | Power electronic technology teaching experimental instrument |
-
2010
- 2010-02-08 CN CN2010201105968U patent/CN201655110U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102708740A (en) * | 2012-06-15 | 2012-10-03 | 黑龙江大学 | Manual input ocular demonstration bridge chopping and inverting experimental circuit |
| CN102708740B (en) * | 2012-06-15 | 2014-04-02 | 黑龙江大学 | Manual input ocular demonstration bridge chopping and inverting experimental circuit |
| CN103337212A (en) * | 2013-07-05 | 2013-10-02 | 无锡商业职业技术学院 | Automatic switching value control practical training device |
| CN103778814A (en) * | 2014-01-13 | 2014-05-07 | 重庆市树德科技有限公司 | Skill examination scoring system |
| CN104952330A (en) * | 2014-03-31 | 2015-09-30 | 南京化工职业技术学院 | Novel light dimming lamp practical training device |
| CN104730959A (en) * | 2015-03-20 | 2015-06-24 | 佛山市华材职业技术学校 | Intelligent instrument and power electronic practical training device and control method thereof |
| CN106373448A (en) * | 2016-10-08 | 2017-02-01 | 深圳国泰安教育技术股份有限公司 | Automotive electronic wiring experimental device and method |
| CN109192019A (en) * | 2018-10-26 | 2019-01-11 | 山东远大朗威教育科技股份有限公司 | The changeable Experiment of Electrical Circuits system of DIS |
| CN110930836A (en) * | 2019-11-18 | 2020-03-27 | 湖北工程学院 | Power electronic technology teaching experimental instrument |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20110208 |