CN205921539U - Adopt voltage stabilizing circuit who utilizes rectification of bridge type rectifier circuit of LC pi type filtering - Google Patents
Adopt voltage stabilizing circuit who utilizes rectification of bridge type rectifier circuit of LC pi type filtering Download PDFInfo
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Abstract
The utility model discloses an adopt voltage stabilizing circuit who utilizes rectification of bridge type rectifier circuit of LC pi type filtering is provided with bridge type rectifier circuit, filter circuit and has controllable accurate voltage stabilizing function's steady voltage system, is provided with diode D2, diode D3, diode D4 and diode D5 in the bridge type rectifier circuit, filter circuit includes electric capacity C3, electric capacity C4, inductance L, and electric capacity C4's first end is connected with diode D3's negative pole and inductance L's first end, and electric capacity C4's second end is connected with the anodal of diode D2 and electric capacity C3's second end, and inductance L's second end is connected with electric capacity C3's first end, and electric capacity C3 is parallelly connected with the input of steady voltage system, when solving prior art and adopting the bridge rectifier, when adopting single capacitance filtering behind the rectified output, ripple voltage is too big, too much influence the weak point of follow -up circuit, and the head section filtering that utilizes LC pi -type filter to carry on behind the rectified output is handled, can effectually fall the low ripple coefficient.
Description
Technical field
This utility model is related to voltage stabilizing technique field, specifically, is the utilization bridge rectifier using the filtering of lc π type
The mu balanced circuit of rectification.
Background technology
Power supply is the device providing power to electronic equipment, and also referred to as power supply unit can be converted into electricity other forms
The device of energy is called power supply.Generating function converts mechanical energy into electric energy, and aneroid battery can be converted into electric energy chemical energy.Generate electricity
Machine, aneroid battery etc. are called power supply.By transformator and commutator, alternating current is become galvanic device and is called rectifier power source.
It is provided that the electronic equipment of signal is called signal source.Crystal triode can be amplified the signal above sent, and amplification
Signal be sent in circuit below.Crystal triode is for circuit below it is also possible to regard signal source as.Whole
Stream power supply, signal source are sometimes referred to as power supply.Using being exactly that a power supply is broken for popular, another backup battery replaces
Its power supply.Can be by being the availability that node and disk offer battery reinforcement strengthen hardware.Develop rapidly in electronic technology
Today, Power Electronic Technique is increasingly subject to people's attention, and the update of wherein power technology has more promoted phase
Close the development of electronic equipment and components and parts.Whether daily life or hyundai electronicses war, power-supply system is as it
Power source, its status and importance are self-evident.And the quality of China's power supply product, it is whether military or civilian,
Obvious gap is all there is with same kind of products at abroad.Therefore, using international advanced standard, learning overseas advanced technology, as early as possible
So that the quality of power supply product is caught up with and surpass the international high standards, be all to be engaged in power supply development and engineers and technicians' justice of production is not allowed
The responsibility of diction.Daily production and life in, power supply be a kind of have a large capacity and a wide range, the electronic product of highly versatile, be almost engaged in
Electronics science research, all departments producing, imparting knowledge to students will use power supply, in other industry-by-industries and daily life, power supply
It is widely used.Therefore, understand that China is about the recension processed of power standard at present, the system playing an active part in standard is repaiied
Order work, for the development promoting Chinese power technology, improve the product quality of power supply, strengthen the product of each power supply manufacturer
Between comparability, provide the user a science, weigh the good and bad unified standard of power quality and be very important.With
When, the formulation of standard is also unified and specification power supply market provides a valid file of tool.In input voltage, bear
Load, ambient temperature, circuit parameter etc. remain to when changing keep the constant circuit of output voltage.This circuit is provided that stable
DC source, widely various electronic equipments adopted.
Utility model content
The purpose of this utility model is to provide the voltage stabilizing electricity of the utilization bridge rectifier rectification using the filtering of lc π type
Road, when solving prior art using bridge rectifier, using during single capacitor filtering after rectification output, ripple voltage is excessive, excessive shadow
Ring the weak point of subsequent conditioning circuit, carry out the cephalomere Filtering Processing after rectification output using lc pi type filter, can effectively drop
Low-ripple coefficient, provides high reliability voltage for subsequent treatment, and using the benchmark voltage stabilizing technique design based on controllable accurate degree
Voltage-stabilizing system carry out voltage stabilizing process.
This utility model is achieved through the following technical solutions: the utilization bridge rectifier rectification being filtered using lc π type
Mu balanced circuit, the voltage-stabilizing system being provided with bridge rectifier, filter circuit and there is controllable accurate voltage stabilizing function, bridge rectifier
It is provided with diode d2, diode d3, diode d4 and diode d5, the positive pole of diode d2 is with diode d4 just in circuit
Pole is connected, and the negative pole of diode d3 is connected with the negative pole of diode d5, the positive pole of the negative pole of diode d2 and diode d3
It is connected, the negative pole of diode d4 is connected with the positive pole of diode d5；Filter circuit includes electric capacity c3, electric capacity c4, inductance l,
The first end of electric capacity c4 is connected with the negative pole of diode d3 and the first end of inductance l, second end of electric capacity c4 and diode d2
Positive pole be connected with second end of electric capacity c3, second end of inductance l is connected with the first end of electric capacity c3, electric capacity c3 and voltage stabilizing
The input of system is in parallel.
Further is preferably to realize this utility model, especially adopts following setting structures: set in described voltage-stabilizing system
It is equipped with controllable accurate voltage stabilizing origin system, comparison circuit, sample circuit and output filter circuit, described controllable accurate voltage stabilizing origin system
In parallel with electric capacity c3, described controllable accurate voltage stabilizing origin system is connected with comparison circuit, described comparison circuit and sample circuit phase
Connect, described sample circuit is connected with output filter circuit, and described output filter circuit is connected with source circuit to be powered.
Further is preferably to realize this utility model, especially adopts following setting structures: set in described comparison circuit
It is equipped with audion q1, audion q2, integrated transporting discharging u1 and electric capacity c1, the colelctor electrode of described audion q1 and the first end of electric capacity c3
It is connected, the base stage of audion q1 is connected with the outfan of integrated transporting discharging u1, the emitter stage of audion q1 is with audion q2's
Base stage is connected, and the colelctor electrode of audion q2 is connected with the first end of electric capacity c3, the emitter stage of audion q2 and sample circuit
It is connected, the inverting input of integrated transporting discharging u1 is connected with controllable accurate voltage stabilizing origin system, the anti-phase input of integrated transporting discharging u1
End is connected with the emitter stage of audion q2 by electric capacity c1, and the inverting input of integrated transporting discharging u1 is also connected with sample circuit
Connect.
Further is preferably to realize this utility model, especially adopts following setting structures: described controllable accurate voltage stabilizing
It is provided with controllable accurate source of stable pressure d1 and resistance r1, the first end first end with electric capacity c3 respectively of described resistance r1 in origin system
It is connected with the colelctor electrode of audion q2, second end of described resistance r1 is connected with the negative electrode of controllable accurate source of stable pressure d1, can
The anode of control precision voltage regulator d1 is connected with second end of electric capacity c3 and the in-phase input end of integrated transporting discharging u1 respectively.
Further is preferably to realize this utility model, especially adopts following setting structures: set in described sample circuit
It is equipped with resistance r2, resistance r3 and potentiometer w1, first end emitter stage and the output filter with audion q2 respectively of described resistance r2
Wave circuit is connected, and second end of described resistance r2 is connected with a fixing end of potentiometer w1, and described potentiometer w1's is another
One fixing end is connected with the first end of resistance r3, the second end negative pole end with externally fed circuit respectively of described resistance r3
It is connected with output filter circuit, the adjustable end of described potentiometer w1 connects the inverting input of integrated transporting discharging u1.
Further is preferably to realize this utility model, especially adopts following setting structures: described output filter circuit
Inside be provided with electric capacity c2, the first end of described electric capacity c2 respectively with the emitter stage of audion q2 and the positive terminal of source circuit to be powered
It is connected, second end of described electric capacity c2 is connected with second end of electric capacity c3 and the negative pole end of source circuit to be powered respectively.
Further is preferably to realize this utility model, especially adopts following setting structures: described electric capacity c2 is using electricity
Solve electric capacity, and the positive terminal of electric capacity c2 is connected with the emitter stage of audion q2.
Further is preferably to realize this utility model, especially adopts following setting structures: also include transformator t, institute
The secondary stating transformator t is connected with the negative pole of diode d2 and the negative pole of diode d4 respectively.
Further is preferably to realize this utility model, especially adopts following setting structures: described transformator t is using band
The transformator of magnetic core.
Further is preferably to realize this utility model, especially adopts following setting structures: described electric capacity c1 is using electricity
The first end of solution electric capacity and c1 is positive terminal.
This utility model compared with prior art, has advantages below and a beneficial effect:
When this utility model solves prior art using bridge rectifier, when being filtered using single capacitor after rectification output, ripple
Voltage is excessive, the weak point of excessive impact subsequent conditioning circuit, is carried out at the cephalomere filtering after rectification output using lc pi type filter
Reason, can effectively reduce ripple factor, provide high reliability voltage for subsequent treatment, and using the base based on controllable accurate degree
The voltage-stabilizing system of quasi- voltage stabilizing technique design carries out voltage stabilizing process.
This utility model effectively solving prior art is designed using the full-wave rectifying circuit that double half-wave rectification circuit is constituted
When, transformator needs centre cap, makes trouble, and commutation diode is subjected to the high weak point of backward voltage, using bridge
So that single diode bears backward voltage reduction, the electric current flowing through every diode also reduces formula rectification circuit design structure,
And also effective guarantee output voltage, enable to output voltage when loading resistive load or inductive load for transformator
Level 0.9 times of RMS voltage, output voltage load during capacitive load for transformer secondary output RMS voltage times, after rectification
Further it is filtered processing.
This utility model can obtain required voltage regulation result using simple circuit structure, solves existing regulated power supply electricity
The circuit structure on road is complicated, and consumptive material is many, and the drawbacks of cost input is big, total has design science, using rational characteristic.
This utility model adopts controllable accurate source of stable pressure as reference power supply, can accurately adjust required reference power supply,
Make the voltage that mu balanced circuit is exported more stable.
Used by this utility model, element is few, but can reach required voltage regulation result, actually while reduces cost puts into
Ensure voltage regulation result.
This utility model replaces Darlington to be compared using single-transistor, same effectively compare and enlarge
When, play the purpose of reduces cost input.
Brief description
Fig. 1 is fundamental diagram of the present utility model.
Specific embodiment
With reference to embodiment, this utility model is described in further detail, but embodiment of the present utility model is not
It is limited to this.
Embodiment 1:
Using the mu balanced circuit of the utilization bridge rectifier rectification of lc π type filtering, solve prior art and adopt bridge-type whole
During stream, using during single capacitor filtering, ripple voltage is excessive, the weak point of excessive impact subsequent conditioning circuit after rectification output, utilize
Lc pi type filter carries out the cephalomere Filtering Processing after rectification output, can effectively reduce ripple factor, provides for subsequent treatment
High reliability voltage, and carry out voltage stabilizing process using the voltage-stabilizing system of the benchmark voltage stabilizing technique design based on controllable accurate degree, such as
Shown in Fig. 1, it is specifically arranged to following structures: be provided with bridge rectifier, filter circuit and there is controllable accurate voltage stabilizing function
Voltage-stabilizing system, be provided with diode d2, diode d3, diode d4 and diode d5, diode d2 in bridge rectifier
Positive pole be connected with the positive pole of diode d4, the negative pole of diode d3 is connected with the negative pole of diode d5, diode d2's
Negative pole is connected with the positive pole of diode d3, and the negative pole of diode d4 is connected with the positive pole of diode d5；Filter circuit includes
Electric capacity c3, electric capacity c4, inductance l, the first end of electric capacity c4 is connected with the negative pole of diode d3 and the first end of inductance l, electric capacity
Second end of c4 is connected with the second end of the positive pole of diode d2 and electric capacity c3, second end of inductance l and the first of electric capacity c3
End is connected, and electric capacity c3 is in parallel with the input of voltage-stabilizing system, and institute electric capacity c3 and electric capacity c4 all adopts electrochemical capacitor, and electric capacity c3
It is connected with inductance l with the positive terminal of electric capacity c4, inductance l is using the inductance with magnetic core.
The lc π type being formed using electric capacity c3, electric capacity c4 and inductance l is filtered by the voltage after bridge rectifier rectification
Device carries out ripple and filters process, is then delivered in the voltage-stabilizing system with controllable accurate voltage stabilizing function and carries out voltage stabilizing process, defeated
Go out required regulated power supply.
Embodiment 2:
The present embodiment is to optimize further on the basis of above-described embodiment, and further is preferably to realize this practicality newly
Type, as shown in figure 1, especially adopt following setting structures: be provided with controllable accurate voltage stabilizing origin system in described voltage-stabilizing system, compare
Circuit, sample circuit and output filter circuit, described controllable accurate voltage stabilizing origin system is in parallel with electric capacity c3, and described controllable accurate is steady
Power system is connected with comparison circuit, and described comparison circuit is connected with sample circuit, and described sample circuit is filtered with output
Circuit is connected, and described output filter circuit is connected with source circuit to be powered.
When design uses, controllable accurate voltage stabilizing origin system is in parallel with electric capacity c3, and this utility model passes through a controlled essence
The reference voltage of close regulation, the benchmark electricity that sample circuit institute power taking pressure and controllable accurate voltage stabilizing origin system are provided by comparison circuit
Pressure is compared, and through output filter circuit after exporting, output obtains required regulated power supply, and described sample circuit is used for carrying out
Voltage sampling is to be compared in comparison circuit.
Embodiment 3:
The present embodiment is to optimize further on the basis of any of the above-described embodiment, as shown in figure 1, being further more preferable
Realize this utility model, the benchmark electricity that voltage that sample circuit is sampled and controllable accurate voltage stabilizing origin system can be provided
Pressure is compared, thus adjusting the regulated power supply that output filter circuit is exported further, obtains required DC voltage-stabilizing output,
Especially adopt following setting structures: in described comparison circuit, be provided with audion q1, audion q2, integrated transporting discharging u1 and electric capacity
C1, the colelctor electrode of described audion q1 is connected with the first end of electric capacity c3, and the base stage of audion q1 is defeated with integrated transporting discharging u1's
Go out end to be connected, the emitter stage of audion q1 is connected with the base stage of audion q2, the colelctor electrode of audion q2 is with electric capacity c3's
First end is connected, and the emitter stage of audion q2 is connected with sample circuit, the inverting input of integrated transporting discharging u1 and controlled essence
Close voltage stabilizing origin system is connected, and the inverting input of integrated transporting discharging u1 is connected with the emitter stage of audion q2 by electric capacity c1,
And the inverting input of integrated transporting discharging u1 is also connected with sample circuit, described integrated transporting discharging u1 adopts lm358, and uses
Any one operational amplification circuit of lm358.
Embodiment 4:
The present embodiment is to optimize further on the basis of any of the above-described embodiment, as shown in figure 1, being further more preferable
Realize this utility model, by required reference voltage, and reference voltage can be enable accurate adjustable, especially using under
State setting structure: in described controllable accurate voltage stabilizing origin system, be provided with controllable accurate source of stable pressure d1 and resistance r1, described resistance r1
First end be connected with the first end of electric capacity c3 and the colelctor electrode of audion q2 respectively, second end of described resistance r1 with controlled
The negative electrode of precision voltage regulator d1 is connected, anode the second end and the integrated transporting discharging with electric capacity c3 respectively of controllable accurate source of stable pressure d1
The in-phase input end of u1 is connected；Described controllable accurate source of stable pressure d1 adopts tl431.
Embodiment 5:
The present embodiment is to optimize further on the basis of any of the above-described embodiment, as shown in figure 1, being further more preferable
Realize this utility model, DC voltage-stabilizing output can be sampled, especially adopt following setting structures: described sample circuit
Inside be provided with resistance r2, resistance r3 and potentiometer w1, the first end of described resistance r2 respectively with the emitter stage of audion q2 and defeated
Go out filter circuit to be connected, second end of described resistance r2 is connected with a fixing end of potentiometer w1, described potentiometer w1
Another fixing end be connected with the first end of resistance r3, second end of described resistance r3 is negative with externally fed circuit respectively
Extremely it is connected with output filter circuit, the adjustable end of described potentiometer w1 connects the inverting input of integrated transporting discharging u1.
Embodiment 6:
The present embodiment is to optimize further on the basis of any of the above-described embodiment, as shown in figure 1, being further more preferable
Realize this utility model, required D.C. regulated power supply can be exported, and its interior ripple is filtered, it is to avoid ripple electricity
Pressure impact subsequent conditioning circuit, especially adopts following setting structures: be provided with electric capacity c2, described electric capacity c2 in described output filter circuit
First end be connected with the emitter stage of audion q2 and the positive terminal of source circuit to be powered respectively, second end of described electric capacity c2
It is connected with second end of electric capacity c3 and the negative pole end of source circuit to be powered respectively.
Embodiment 7:
The present embodiment is to optimize further on the basis of any of the above-described embodiment, as shown in figure 1, being further more preferable
Realize this utility model, especially adopt following setting structures: described electric capacity c2 adopts electrochemical capacitor, and the positive terminal of electric capacity c2
It is connected with the emitter stage of audion q2.
Embodiment 8:
The present embodiment is to optimize further on the basis of any of the above-described embodiment, as shown in figure 1, being further more preferable
Realize this utility model, especially adopt following setting structures: further is preferably to realize this utility model, especially adopts
Following setting structures: also include transformator t, the secondary of described transformator t respectively with the negative pole of diode d2 and diode d4
Negative pole is connected.
Embodiment 9:
The present embodiment is to optimize further on the basis of any of the above-described embodiment, as shown in figure 1, being further more preferable
Realize this utility model, especially adopt following setting structures: it is just that described electric capacity c1 adopts the first end of electrochemical capacitor and c1
Extremely.
The above, be only preferred embodiment of the present utility model, and not this utility model is done with any pro forma limit
System, every any simple modification above example made according to technical spirit of the present utility model, equivalent variations, each fall within
Within protection domain of the present utility model.
Claims (9)
1. adopt lc π type filtering utilization bridge rectifier rectification mu balanced circuit it is characterised in that: be provided with bridge rectifier
Circuit, filter circuit and the voltage-stabilizing system with controllable accurate voltage stabilizing function, be provided with bridge rectifier diode d2, two
Pole pipe d3, diode d4 and diode d5, the positive pole of diode d2 is connected with the positive pole of diode d4, the negative pole of diode d3
Be connected with the negative pole of diode d5, the negative pole of diode d2 is connected with the positive pole of diode d3, the negative pole of diode d4 with
The positive pole of diode d5 is connected；Filter circuit includes electric capacity c3, electric capacity c4, inductance l, the first end of electric capacity c4 and diode d3
Negative pole be connected with the first end of inductance l, the second end phase of second end of electric capacity c4 and the positive pole of diode d2 and electric capacity c3
Connect, second end of inductance l is connected with the first end of electric capacity c3, and electric capacity c3 is in parallel with the input of voltage-stabilizing system.
2. the mu balanced circuit of the utilization bridge rectifier rectification of employing lc π type filtering according to claim 1, its feature
It is: it is provided with controllable accurate voltage stabilizing origin system, comparison circuit, sample circuit and output filter circuit in described voltage-stabilizing system,
Described controllable accurate voltage stabilizing origin system is in parallel with electric capacity c3, and described controllable accurate voltage stabilizing origin system is connected with comparison circuit, institute
State comparison circuit to be connected with sample circuit, described sample circuit is connected with output filter circuit, described output filter circuit
It is connected with source circuit to be powered.
3. the mu balanced circuit of the utilization bridge rectifier rectification of employing lc π type filtering according to claim 2, its feature
It is: it is provided with audion q1, audion q2, integrated transporting discharging u1 and electric capacity c1 in described comparison circuit, described audion q1's
Colelctor electrode is connected with the first end of electric capacity c3, and the base stage of audion q1 is connected with the outfan of integrated transporting discharging u1, audion
The emitter stage of q1 is connected with the base stage of audion q2, and the colelctor electrode of audion q2 is connected with the first end of electric capacity c3, three poles
The emitter stage of pipe q2 is connected with sample circuit, and the inverting input of integrated transporting discharging u1 is connected with controllable accurate voltage stabilizing origin system
Connect, the inverting input of integrated transporting discharging u1 is connected with the emitter stage of audion q2 by electric capacity c1, and integrated transporting discharging u1's is anti-
Phase input is also connected with sample circuit.
4. the mu balanced circuit of the utilization bridge rectifier rectification of employing lc π type filtering according to claim 3, its feature
It is: it is provided with controllable accurate source of stable pressure d1 and resistance r1 in described controllable accurate voltage stabilizing origin system, the first of described resistance r1
End is connected with the first end of electric capacity c3 and the colelctor electrode of audion q2 respectively, and second end of described resistance r1 is steady with controllable accurate
The negative electrode of potential source d1 is connected, and the anode of controllable accurate source of stable pressure d1 is same with second end of electric capacity c3 and integrated transporting discharging u1 respectively
Phase input is connected.
5. the mu balanced circuit of the utilization bridge rectifier rectification of employing lc π type filtering according to claim 3, its feature
Be: be provided with resistance r2, resistance r3 and potentiometer w1 in described sample circuit, the first end of described resistance r2 respectively with three poles
The emitter stage of pipe q2 is connected with output filter circuit, and second end of described resistance r2 is connected with a fixing end of potentiometer w1
Connect, another fixing end of described potentiometer w1 is connected with the first end of resistance r3, second end of described resistance r3 respectively with
The negative pole end of externally fed circuit is connected with output filter circuit, and the adjustable end of described potentiometer w1 connects integrated transporting discharging u1's
Inverting input.
6. the mu balanced circuit of the utilization bridge rectifier rectification of employing lc π type filtering according to claim 5, its feature
It is: in described output filter circuit, be provided with electric capacity c2, the first end emitter stage with audion q2 respectively of described electric capacity c2
It is connected with the positive terminal of source circuit to be powered, the second end the second end and source to be powered with electric capacity c3 respectively of described electric capacity c2
The negative pole end of circuit is connected.
7. the mu balanced circuit of the utilization bridge rectifier rectification of employing lc π type filtering according to claim 6, its feature
It is: described electric capacity c2 adopts electrochemical capacitor, and the positive terminal of electric capacity c2 is connected with the emitter stage of audion q2.
8. the voltage stabilizing electricity of the utilization bridge rectifier rectification of employing lc π type filtering according to any one of claim 1-7
Road it is characterised in that: also include transformator t, the secondary of described transformator t respectively with the negative pole of diode d2 and diode d4
Negative pole is connected.
9. the voltage stabilizing electricity of the utilization bridge rectifier rectification of employing lc π type filtering according to any one of claim 3-7
Road it is characterised in that: it is positive terminal that described electric capacity c1 adopts the first end of electrochemical capacitor and c1.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620744537.3U CN205921539U (en) | 2016-07-14 | 2016-07-14 | Adopt voltage stabilizing circuit who utilizes rectification of bridge type rectifier circuit of LC pi type filtering |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620744537.3U CN205921539U (en) | 2016-07-14 | 2016-07-14 | Adopt voltage stabilizing circuit who utilizes rectification of bridge type rectifier circuit of LC pi type filtering |
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| CN205921539U true CN205921539U (en) | 2017-02-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106026711A (en) * | 2016-07-14 | 2016-10-12 | 成都市思卡利科技有限公司 | Voltage-stabilizing circuit by adopting LCpi-type filter and using bridge rectifier circuit for rectifier |
-
2016
- 2016-07-14 CN CN201620744537.3U patent/CN205921539U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106026711A (en) * | 2016-07-14 | 2016-10-12 | 成都市思卡利科技有限公司 | Voltage-stabilizing circuit by adopting LCpi-type filter and using bridge rectifier circuit for rectifier |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Lin Yiping Inventor before: Jiang Dijiao |
|
| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171226 Address after: 30 A District No. fourth Jimei District of Xiamen City, Fujian province 361024 Hou Xi Zhen Dong Ling Road Patentee after: Xiamen csucces Electrical Equipment Co. Ltd. Address before: Xinjin County of Chengdu City, Sichuan province 611400 Flower Town Zhengtong Street No. 98 No. 24 1 floor Patentee before: Chengdu ideal technology Co., Ltd. |
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| TR01 | Transfer of patent right |