CN108566073A - A kind of transient response circuit of switching regulator - Google Patents
A kind of transient response circuit of switching regulator Download PDFInfo
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- CN108566073A CN108566073A CN201711377937.0A CN201711377937A CN108566073A CN 108566073 A CN108566073 A CN 108566073A CN 201711377937 A CN201711377937 A CN 201711377937A CN 108566073 A CN108566073 A CN 108566073A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0009—Devices or circuits for detecting current in a converter
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
The present invention relates to power electronics field more particularly to a kind of transient response circuits of switching regulator, including：Voltage reduction module；First acquisition module；Second acquisition module；Third acquisition module；Comparison module；The superposed signal of ramp signal and feedback signal is compared by comparison module with acquisition signal, and exports a comparison signal by comparing output end；Pulse width modulation module；Wherein, for third acquisition module when the operating current on collected main circuit is more than a preset value, the ratio of the operating current in the feedback signal and main circuit of output is equal to 1；For third acquisition module when the operating current on collected main circuit is less than preset value, the ratio of the operating current in the feedback signal and main circuit of output is less than 1；The ability for the transient response having is strong, and reaction speed is fast, and reliability is high.
Description
Technical field
The present invention relates to power electronics field more particularly to a kind of transient response circuits of switching regulator.
Background technology
With the fast development of microelectric technique, switching regulator is since circuit structure is simple, easy to adjust, reliability is high
The advantages that, in various occasion extensive applications, switching regulator usually uses PWM (Pulse Width Modulation) to control
Mode processed has good noise reduction advantage.
However, traditional switching regulator controlled using PWM technologies, affected by a load larger, transient response
Ability is poor, can not provide sufficiently stable power supply for load, cause the probability of electrical problems larger, reliability is not high.
Invention content
In view of the above-mentioned problems, the present invention proposes a kind of transient response circuit of switching regulator, wherein including：
Voltage reduction module, including：
A signal input part for receiving input signal and the signal output end for output signal output；
Main circuit is series between the signal input part and the signal output end；
One first metal-oxide-semiconductor and one second metal-oxide-semiconductor, the conducting for controlling the main circuit；
First acquisition module connects the signal output end, to acquire the output signal of the signal output end, and
According to one acquisition signal of output signal output；
Second acquisition module connects the signal output end, to acquire the output signal of the signal output end, and
Ramp signal is exported according to the output signal；
Third acquisition module, for acquiring the operating current on main circuit described in the voltage reduction module and exporting a feedback
Signal；
Comparison module, including：
One normal phase input end is connect with first acquisition module, for receiving the acquisition signal；
One first inverting input is connect with second acquisition module, for receiving the ramp signal；
One second inverting input is connect with the third acquisition module, for receiving the feedback signal；
One compares output end；
The comparison module carries out the superposed signal of the ramp signal and the feedback signal and the acquisition signal
Compare, and a comparison signal is exported by the relatively output end；
Pulse width modulation module is separately connected relatively output end, first metal-oxide-semiconductor and second metal-oxide-semiconductor, to connect
It receives and the control signal for generating duty ratio corresponding according to the comparison signal controls first metal-oxide-semiconductor and second metal-oxide-semiconductor；
Wherein, the third acquisition module in the operating current on the collected main circuit be more than a preset value when,
The feedback signal of output and the ratio of the operating current on the main circuit are equal to 1；The third acquisition module is in acquisition
To the main circuit on operating current be less than the preset value when, the feedback signal of output on the main circuit
The ratio of operating current is less than 1.
Above-mentioned transient response circuit, wherein the preset value is the rated value of the operating current on the main circuit
25%~95%.
Above-mentioned transient response circuit, wherein the preset value is the rated value of the operating current on the main circuit
50%.
Above-mentioned transient response circuit, wherein first acquisition module includes an error amplifying unit, for that will adopt
The output signal of collection is amplified after being compared with a preset reference signal.
Above-mentioned transient response circuit, wherein further include a voltage regulation unit in first acquisition module, the voltage stabilizing list
First delivery outlet with the error amplifying unit is connect, and is carried out with the amplified signal generated to the error amplifying unit steady
Swaging is at the acquisition signal.
Above-mentioned transient response circuit, wherein the voltage regulation unit includes the first compensating electric capacity, the second compensating electric capacity and benefit
Repay resistance；
First compensating electric capacity is in parallel with second compensating electric capacity after connecting with the compensation resistance.
Above-mentioned transient response circuit, wherein the voltage reduction module includes the induced electricity being connected in the main circuit
Resistance；
The third acquisition module acquires the induced voltage on the inductive reactance, and the induced voltage is multiplied by one instead
The feedback signal is generated after feedforward coefficient.
Above-mentioned transient response circuit, wherein first metal-oxide-semiconductor and second metal-oxide-semiconductor are NMOS tube.
Advantageous effect：A kind of transient response circuit of switching regulator proposed by the present invention, the energy for the transient response having
Power is strong, and reaction speed is fast, and reliability is high.
Description of the drawings
Fig. 1 is the structural schematic diagram of the transient response circuit of switching regulator in one embodiment of the invention；
Fig. 2 is the circuit theory of the first acquisition module in the transient response circuit of switching regulator in one embodiment of the invention
Figure；
Fig. 3 is the circuit diagram of main circuit in the transient response circuit of switching regulator in one embodiment of the invention；
Fig. 4 is the oscillogram of superposed signal in the transient response circuit of switching regulator in one embodiment of the invention；
Fig. 5 is the output waveform and arteries and veins of comparison module in the transient response circuit of switching regulator in one embodiment of the invention
Rush the oscillogram of signal.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art obtained under the premise of not making creative work it is all its
His embodiment, shall fall within the protection scope of the present invention.
As shown in Figure 1, in a preferred embodiment, it is proposed that a kind of transient response circuit of switching regulator,
In, may include：
Voltage reduction module 10, including：
A signal input part INT for the receiving input signal and signal output end OUT for output signal output；
Main circuit 11 is series between signal input part INT and signal output end OUT；
One first metal-oxide-semiconductor M1 and one second metal-oxide-semiconductor M2, the conducting for controlling main circuit 11；
First acquisition module 21, connection signal output end to acquire the output signal of signal output end, and are believed according to output
Number output one acquisition signal；
Second acquisition module 22, connection signal output end OUT, to acquire the output signal of signal output end OUT, and according to
Output signal exports ramp signal；
Third acquisition module 23, for acquiring the operating current in voltage reduction module 10 on main circuit 11 and exporting a feedback letter
Number；
Comparison module 30, including：
One normal phase input end is connect with the first acquisition module 21, for receiving acquisition signal；
One first inverting input is connect with the second acquisition module 22, for receiving ramp signal；
One second inverting input, connect with third acquisition module 23, for receiving feedback signal；
One compares output end Cout；
The superposed signal of ramp signal and feedback signal is compared by comparison module 30 with acquisition signal, and by comparing
Output end Cout exports a comparison signal；
Pulse width modulation module 40 is separately connected and compares output end Cout, the first metal-oxide-semiconductor and M1 the second metal-oxide-semiconductor M2, to receive
And the control signal that duty ratio corresponding is generated according to comparison signal controls the first metal-oxide-semiconductor M1 and the second metal-oxide-semiconductor M2；
Wherein, third acquisition module 23 is when the operating current on collected main circuit 11 is more than a preset value, output
Feedback signal and main circuit 11 on the ratio of operating current be equal to 1；Third acquisition module 23 is in collected main circuit 11
On operating current when being less than preset value, the feedback signal of output and the ratio of the operating current on main circuit 11 are less than 1.
In above-mentioned technical proposal, the first metal-oxide-semiconductor M1 and the second metal-oxide-semiconductor M2 can respectively be connect with main circuit 11, to
It is connected under control of the control signal, to control the conducting of main circuit 11, control signal is with a particular duty cycle
Pulse signal, enable to the first metal-oxide-semiconductor M1 and the second metal-oxide-semiconductor M2 to be sequentially turned within each time cycle, to pass through
The current/voltage of different Duty ratio control main circuits, but this is the conventional techniques of those skilled in the art, herein no longer
It repeats.
In a preferred embodiment, preset value be main circuit 11 on operating current rated value 25%~
95%.
In above-mentioned technical proposal, for example, preset value can be 35% of the rated value of operating current on main circuit 11,
Or 40% or 45% or 55% or 60% or 65% etc..
In above-described embodiment, it is preferable that preset value is the 50% of the rated value of the operating current on main circuit.
In above-mentioned technical proposal, if the operating current on 23 collected main circuit 11 of third acquisition module is more than rated value
50% when, then it is assumed that needed in main circuit 11 carry out overcurrent protection, for the operating current of continuous decrease, feedback signal and master
The ratio of operating current on circuit 11 is less than 1, i.e. feedback signal also can be reduced constantly, so that pulse signal accounts for
Sky is than increasing, so that the speed of transient response improves；After operating current tends towards stability, then by feedback signal and main circuit
The ratio of operating current on 11 reverts to 1.
It is specific to compare when feedback signal and the ratio of the operating current on main circuit 11 are less than greatly in above-mentioned technical proposal
Value can be less than a 1 fixed coefficient value, can also be the coefficient value of an ever-increasing variation.
As shown in Fig. 2, in a preferred embodiment, the first acquisition module 21 includes an error amplifying unit gm,
For amplifying after being compared the output signal of acquisition with a preset reference signal Vref.
In above-mentioned technical proposal, the output signal of acquisition enters from input port In1；Output signal can also pass through after entering
One partial pressure unit forms the voltage Veain into the inverting input of error amplifying unit gm；Partial pressure unit in Fig. 2 is by connecting
Resistance R1 and resistance R2 composition, resistance R2 can be parallel with capacitance C2, one end that resistance R1 is not connected with resistance R2 can be grounded.
In above-described embodiment, it is preferable that can also include a voltage regulation unit, voltage regulation unit and mistake in the first acquisition module 21
The delivery outlet of poor amplifying unit gm connects, and carrying out voltage stabilizing with the amplified signal generated to error amplifying unit 21 forms acquisition
Signal.
In above-mentioned technical proposal, the acquisition signal generated after voltage stabilizing is exported from delivery outlet Ou1.
In above-described embodiment, it is preferable that voltage regulation unit includes the first compensating electric capacity Cth, the second compensating electric capacity Cthp and benefit
Repay resistance Rth；
First compensating electric capacity Cth is in parallel with the second compensating electric capacity Cthp after connecting with compensation resistance Rth.
In above-mentioned technical proposal, the capacitance of the first compensating electric capacity Cth and the second compensating electric capacity Cthp can be different；
The voltage regulation unit can also include the resistance R0 of one end ground connection.
As shown in figure 3, in a preferred embodiment, voltage reduction module 10 includes the induction being connected in main circuit 11
Resistance Rsense；
Third acquisition module 23 acquires the induced voltage on inductive reactance Rsense, and induced voltage is multiplied by a feedback system
Feedback signal is generated after number.
In above-mentioned technical proposal, the input signal that is inputted from signal input part INT by after the first metal-oxide-semiconductor M1 from main circuit
11 input port In2 enters main circuit 11, is exported from delivery outlet Ou2 after inductor rectifier L；Inductive reactance Rsense can be with
It is connected on behind inductor rectifier L.
In a preferred embodiment, the first metal-oxide-semiconductor M1 and the second metal-oxide-semiconductor can be NMOS tube M2, but this is
A kind of preferred situation, can also both the case where being PMOS or one of them be PMOS another be NMOS.
Specifically, as shown in figure 4, VCS indicates that the waveform of ramp signal, Vcomp indicate the wave of feedback signal in the Fig. 4
The amplitude of shape, the feedback signal is in zooming trend, the duty ratio of pulse signal can be made to increase, to ensure transient state
The process of response it is rapid, effective；As shown in figure 5, VEAO indicates the wave for the comparison signal that comparison module 30 exports in the Fig. 5
Shape, Vlx indicates the waveform of the duty ratio of pulse signal, since duty ratio persistently rises, the comparison signal of the output of comparison module 30
Value continue and rapid increase.
In conclusion a kind of transient response circuit of switching regulator proposed by the present invention, including：Voltage reduction module；First
Acquisition module；Second acquisition module；Third acquisition module；Comparison module；Comparison module is by the folded of feedback signal and ramp signal
Plus signal is compared with acquisition signal, and exports a comparison signal by comparing output end；Pulse width modulation module；Wherein,
Three acquisition modules are when the operating current on collected main circuit is more than a preset value, in the feedback signal and main circuit of output
Operating current ratio be equal to 1；Third acquisition module is defeated when the operating current on collected main circuit is less than preset value
The ratio of the operating current in feedback signal and main circuit gone out is less than 1；The ability for the transient response having is strong, reaction speed
Soon, reliability is high.
By description and accompanying drawings, the exemplary embodiments of the specific structure of specific implementation mode are given, based on present invention essence
God can also make other conversions.Although foregoing invention proposes existing preferred embodiment, however, these contents are not intended as
Limitation.
For a person skilled in the art, after reading above description, various changes and modifications undoubtedly will be evident.
Therefore, appended claims should regard the whole variations and modifications for covering the true intention and range of the present invention as.It is weighing
The range and content of any and all equivalences within the scope of sharp claim, are all considered as still belonging to the intent and scope of the invention.
Claims (8)
1. a kind of transient response circuit of switching regulator, which is characterized in that including：
Voltage reduction module, including：
A signal input part for receiving input signal and the signal output end for output signal output；
Main circuit is series between the signal input part and the signal output end；
One first metal-oxide-semiconductor and one second metal-oxide-semiconductor, the conducting for controlling the main circuit；
First acquisition module connects the signal output end, to acquire the output signal of the signal output end, and according to
One acquisition signal of the output signal output；
Second acquisition module connects the signal output end, to acquire the output signal of the signal output end, and according to
The output signal exports ramp signal；
Third acquisition module, for acquiring the operating current on main circuit described in the voltage reduction module and exporting a feedback letter
Number；
Comparison module, including：
One normal phase input end is connect with first acquisition module, for receiving the acquisition signal；
One first inverting input is connect with second acquisition module, for receiving the ramp signal；
One second inverting input is connect with the third acquisition module, for receiving the feedback signal；
One compares output end；
The superposed signal of the ramp signal and the feedback signal is compared by the comparison module with the acquisition signal,
And a comparison signal is exported by the relatively output end；
Pulse width modulation module is separately connected relatively output end, first metal-oxide-semiconductor and second metal-oxide-semiconductor, to receive simultaneously
The control signal that duty ratio corresponding is generated according to the comparison signal controls first metal-oxide-semiconductor and second metal-oxide-semiconductor；
Wherein, the third acquisition module is when the operating current on the collected main circuit is more than a preset value, output
The feedback signal and the main circuit on the ratio of operating current be equal to 1；The third acquisition module is in collected
When operating current on the main circuit is less than the preset value, the feedback signal and the work on the main circuit of output
The ratio of electric current is less than 1.
2. transient response circuit according to claim 1, the preset value is the volume of the operating current on the main circuit
The 25%~95% of definite value.
3. transient response circuit according to claim 2, which is characterized in that the preset value is the work on the main circuit
Make the 50% of the rated value of electric current.
4. transient response circuit according to claim 1, which is characterized in that first acquisition module includes an error
Amplifying unit, for amplifying after being compared the output signal of acquisition with a preset reference signal.
5. transient response circuit according to claim 4, which is characterized in that further include one steady in first acquisition module
Unit is pressed, the voltage regulation unit is connect with the delivery outlet of the error amplifying unit, with what is generated to the error amplifying unit
Amplified signal carries out voltage stabilizing and forms the acquisition signal.
6. transient response circuit according to claim 5, which is characterized in that the voltage regulation unit includes the first compensation electricity
Appearance, the second compensating electric capacity and compensation resistance；
First compensating electric capacity is in parallel with second compensating electric capacity after connecting with the compensation resistance.
7. transient response circuit according to claim 1, which is characterized in that the voltage reduction module include be connected on it is described
Inductive reactance in main circuit；
The third acquisition module acquires the induced voltage on the inductive reactance, and the induced voltage is multiplied by a feedback system
The feedback signal is generated after number.
8. transient response circuit according to claim 1, which is characterized in that first metal-oxide-semiconductor and second metal-oxide-semiconductor
It is NMOS tube.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711377937.0A CN108566073B (en) | 2017-12-19 | 2017-12-19 | Transient response circuit of switching regulator |
| PCT/CN2018/115060 WO2019120006A1 (en) | 2017-12-19 | 2018-11-12 | Transient response circuit of switching regulator |
| US16/342,081 US11218075B2 (en) | 2017-12-19 | 2018-11-12 | Transient response circuit of switching regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711377937.0A CN108566073B (en) | 2017-12-19 | 2017-12-19 | Transient response circuit of switching regulator |
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| CN108566073A true CN108566073A (en) | 2018-09-21 |
| CN108566073B CN108566073B (en) | 2020-10-09 |
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| CN201711377937.0A Active CN108566073B (en) | 2017-12-19 | 2017-12-19 | Transient response circuit of switching regulator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019120006A1 (en) * | 2017-12-19 | 2019-06-27 | 晶晨半导体(上海)股份有限公司 | Transient response circuit of switching regulator |
| CN112600523A (en) * | 2020-12-30 | 2021-04-02 | 北京纬百科技有限公司 | Voltage adjusting circuit, electric signal processing method and microcontroller |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050007167A1 (en) * | 2003-07-10 | 2005-01-13 | Yoshihisa Tange | PWM switching regulator control circuit |
| US6933710B2 (en) * | 2002-02-19 | 2005-08-23 | Fairchild Semiconductor Corporation | Soft start techniques for control loops that regulate DC/DC converters |
| CN1897440A (en) * | 2006-06-30 | 2007-01-17 | 北京中星微电子有限公司 | Circuit for controlling switch power supply |
| CN101689805A (en) * | 2007-05-29 | 2010-03-31 | 凌特公司 | The improved Controlled in Current Mode and Based of switching regulaor |
| CN203827178U (en) * | 2014-04-28 | 2014-09-10 | 贾增元 | Switching power supply device |
| CN104052281A (en) * | 2013-03-13 | 2014-09-17 | 万国半导体股份有限公司 | Switching regulator with adaptive pwm/pfm modulator |
| US20140306680A1 (en) * | 2013-04-15 | 2014-10-16 | Virginia Tech Intellectual Properties, Inc. | External Ramp Autotuning for Current Mode Control of Switching Converter |
| CN104167924A (en) * | 2014-08-13 | 2014-11-26 | 南京创佳通讯电源设备厂 | Double-current control circuit of switching power supply |
| CN105334900A (en) * | 2015-11-19 | 2016-02-17 | 成都华微电子科技有限公司 | Fast transient response low-dropout linear voltage regulator |
| CN106612070A (en) * | 2015-10-22 | 2017-05-03 | 深圳市中兴微电子技术有限公司 | Load transient response enhancement method and system for voltage-mode buck converter |
| CN106911251A (en) * | 2015-12-22 | 2017-06-30 | 上海贝岭股份有限公司 | Boost power converter |
-
2017
- 2017-12-19 CN CN201711377937.0A patent/CN108566073B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6933710B2 (en) * | 2002-02-19 | 2005-08-23 | Fairchild Semiconductor Corporation | Soft start techniques for control loops that regulate DC/DC converters |
| US20050007167A1 (en) * | 2003-07-10 | 2005-01-13 | Yoshihisa Tange | PWM switching regulator control circuit |
| CN1897440A (en) * | 2006-06-30 | 2007-01-17 | 北京中星微电子有限公司 | Circuit for controlling switch power supply |
| CN101689805A (en) * | 2007-05-29 | 2010-03-31 | 凌特公司 | The improved Controlled in Current Mode and Based of switching regulaor |
| CN104052281A (en) * | 2013-03-13 | 2014-09-17 | 万国半导体股份有限公司 | Switching regulator with adaptive pwm/pfm modulator |
| US20140306680A1 (en) * | 2013-04-15 | 2014-10-16 | Virginia Tech Intellectual Properties, Inc. | External Ramp Autotuning for Current Mode Control of Switching Converter |
| CN203827178U (en) * | 2014-04-28 | 2014-09-10 | 贾增元 | Switching power supply device |
| CN104167924A (en) * | 2014-08-13 | 2014-11-26 | 南京创佳通讯电源设备厂 | Double-current control circuit of switching power supply |
| CN106612070A (en) * | 2015-10-22 | 2017-05-03 | 深圳市中兴微电子技术有限公司 | Load transient response enhancement method and system for voltage-mode buck converter |
| CN105334900A (en) * | 2015-11-19 | 2016-02-17 | 成都华微电子科技有限公司 | Fast transient response low-dropout linear voltage regulator |
| CN106911251A (en) * | 2015-12-22 | 2017-06-30 | 上海贝岭股份有限公司 | Boost power converter |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019120006A1 (en) * | 2017-12-19 | 2019-06-27 | 晶晨半导体(上海)股份有限公司 | Transient response circuit of switching regulator |
| US11218075B2 (en) | 2017-12-19 | 2022-01-04 | Amlogic (Shanghai) Co., Ltd. | Transient response circuit of switching regulator |
| CN112600523A (en) * | 2020-12-30 | 2021-04-02 | 北京纬百科技有限公司 | Voltage adjusting circuit, electric signal processing method and microcontroller |
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| Publication number | Publication date |
|---|---|
| CN108566073B (en) | 2020-10-09 |
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