CN206533296U - A kind of Sofe Switch rectification charging multiplex circuit of pair of boost structure - Google Patents
A kind of Sofe Switch rectification charging multiplex circuit of pair of boost structure Download PDFInfo
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- CN206533296U CN206533296U CN201720288749.XU CN201720288749U CN206533296U CN 206533296 U CN206533296 U CN 206533296U CN 201720288749 U CN201720288749 U CN 201720288749U CN 206533296 U CN206533296 U CN 206533296U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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Abstract
The Sofe Switch rectification charging multiplex circuit of a kind of pair of boost structure, including transistor Q1, transistor Q2, transistor Q5, diode D1, diode D2, diode D5, diode D7, diode D8, electric capacity C1, electric capacity C3 and inductance L3；Transistor Q1, transistor Q2 and electric capacity C1 loops in series, the branch circuit parallel connection that inductance L3, transistor Q5 connect with diode D7 and diode D8 is in the transistor Q1, transistor Q2 and electric capacity C1 loops in series；Diode D1 is parallel to transistor Q1 two ends, and diode D2 is parallel to transistor Q2 two ends, and diode D5 is parallel to transistor Q5 two ends；Electric capacity C3 is parallel to the two ends that inductance L3 and diode D7 constitutes branch road.The utility model proposes the Sofe Switch rectification multiplex circuit of a kind of pair of boost structure, city's electric boost, battery booster, and battery charging are realized, the hardware complexity of complete machine is greatly reduced, improves reliability, reduce cost.
Description
Technical field
The utility model is related to boost circuit support circuits field, more particularly to the Sofe Switch of a kind of pair of boost structure is whole
Current charge multiplex circuit.
Background technology
BOOST circuits are a kind of switch DC booster circuits, and it is mainly used in Power Electronic Technique, Switching Power Supply skill
The fields such as art, new energy technology.Current BOOST circuits are used first to being released to the energy that inductance is stored after induction charging substantially
The scheme of electric capacity is to realize the lifting of voltage, but because the loss of switching device is high, and caloric value is larger, causes circuit conversion
Efficiency is low, and circuit lifetime is short.
Sofe Switch：" soft switching ", that is, by rational circuit design, make switching device to Sofe Switch English name
Opening and shutdown moment, in no-voltage/zero current turning-on/off state, the loss of switching device is reduced with this, improving
System effectiveness, meets with stresses while reducing devices switch transient state, increases system reliability.
Transistor is more and more extensive in electronic product instantly as applying for switching device, meanwhile, with Science and Technology Day
The different change of crescent and the development of human civilization, energy-conserving and environment-protective have been the inexorable trends under entire society's environmental development.Make
Various " Sofe Switch " circuits of key technology in terms of for power electronics, because with higher efficiency, switch stress is smaller, temperature rise is more
Small the advantages of, used in many transistor switching circuits.It is more existing for BOOST booster circuit architecture designs
" Sofe Switch " is realized generally by the way of auxiliary transistor circuit, and this " Sofe Switch " circuit is due to increase aid crystal
Pipe, it is necessary to have drive circuit, and take the I/O interfaces of control chip, while the difficulty of control is added, when I/O interfaces
It may be needed when not enough from the higher chip of cost, with certain limitation, implementation is more complicated.
Utility model content
The purpose of this utility model is to be directed to drawbacks described above, the Sofe Switch rectification charging of a kind of pair of boost structure of proposition
Multiplex circuit.
In order to reach this purpose, the utility model uses following technical scheme：
The Sofe Switch rectification charging multiplex circuit of a kind of pair of boost structure, including transistor Q1, transistor Q2, transistor
Q5, diode D1, diode D2, diode D5, diode D7, diode D8, electric capacity C1, electric capacity C3 and inductance L3；
The transistor Q1, transistor Q2 and electric capacity C1 loops in series, inductance L3, transistor Q5 and diode D7 and
The branch circuit parallel connection of diode D8 series connection is in the transistor Q1, transistor Q2 and electric capacity C1 loops in series；
The diode D1 is parallel to transistor Q1 two ends, and diode D2 is parallel to transistor Q2 two ends, diode
D5 is parallel to transistor Q5 two ends；
The electric capacity C3 is parallel to the two ends that inductance L3 and diode D7 constitutes branch road；
Also include transistor Q3, transistor Q6, transistor Q4, diode D3, diode D6, diode D4, diode D9,
Diode D10, electric capacity C2, electric capacity C4 and inductance L4；
The transistor Q3, transistor Q4 and electric capacity C2 loops in series, inductance L4, transistor Q6 and diode D9 and
The branch circuit parallel connection of diode D10 series connection is in the transistor Q3, transistor Q4 and electric capacity C2 loops in series；
The diode D3 is parallel to transistor Q3 two ends, and diode D4 is parallel to transistor Q4 two ends, diode
D6 is parallel to transistor Q6 two ends；
The electric capacity C4 is parallel to the two ends that inductance L4 and diode D9 constitutes branch road；
Also include IGCT SCR3, IGCT SCR4, IGCT SCR5, IGCT SCR6, positive battery group PBat, negative battery
Group NBat, inductance L1 and inductance L2；
One end after the IGCT SCR3 and IGCT SCR4 are in parallel is connected with positive battery group PBat, IGCT SCR5 with
Connected with negative battery group NBat one end after IGCT SCR6 is in parallel；
The other end after the IGCT SCR3 and IGCT SCR4 are in parallel is connected with inductance L1, IGCT SCR5 and brilliant lock
The other end after pipe SCR6 is in parallel is connected with inductance L2.
More excellent, in addition to civil power, IGCT SCR1, IGCT SCR2, the positive pole and IGCT of the live wire of the civil power
SCR1 one end is connected, and the IGCT SCR1 other end is connected to inductance L1 positive pole；
The negative pole of the live wire of the civil power is connected with IGCT SCR2 one end, and the IGCT SCR2 other end is connected to electricity
Feel L2 positive pole；
The zero line N of civil power one end is connected to positive battery group PBat negative pole, and the zero line N other end is connected to negative electricity
Pond group NBat positive pole.
More excellent, the transistor Q1, transistor Q2, transistor Q3, transistor Q4, transistor Q5 and transistor Q6 are exhausted
Edge grid bipolar transistor IGBT.
The purpose of this utility model is the Sofe Switch rectification multiplex circuit for proposing a kind of pair of boost structure, by this electricity
Line structure, realizes city's electric boost, battery booster, and battery charging, greatly reduces the hardware complexity of complete machine, improve
Reliability, reduces cost.By auxiliary switch and resonant network, IGBT zero current turning-ons, zero when realizing boosting work
Voltage is turned off, and is reduced and is opened turn-off power loss.Commutation diode realizes soft switching, reduces reverse recovery loss.Greatly
Improve overall efficiency.
Brief description of the drawings
Fig. 1 is the schematic diagram of the utility model embodiment.
Embodiment
Further illustrate the technical solution of the utility model below in conjunction with the accompanying drawings and by specific embodiment mode.
The Sofe Switch rectification charging multiplex circuit of a kind of pair of boost structure, including transistor Q1, transistor Q2, transistor
Q5, diode D1, diode D2, diode D5, diode D7, diode D8, electric capacity C1, electric capacity C3 and inductance L3；The crystalline substance
Body pipe Q1, transistor Q2 and electric capacity C1 loops in series, inductance L3, transistor Q5 connect with diode D7 and diode D8
Branch circuit parallel connection is in the transistor Q1, transistor Q2 and electric capacity C1 loops in series；The diode D1 is parallel to crystal
Pipe Q1 two ends, diode D2 is parallel to transistor Q2 two ends, and diode D5 is parallel to transistor Q5 two ends；The electric capacity
C3 is parallel to the two ends that inductance L3 and diode D7 constitutes branch road；Also include transistor Q3, transistor Q6, transistor Q4, two poles
Pipe D3, diode D6, diode D4, diode D9, diode D10, electric capacity C2, electric capacity C4 and inductance L4；The transistor Q3,
Transistor Q4 and electric capacity C2 loops in series, the branch road that inductance L4, transistor Q6 connect with diode D9 and diode D10 is simultaneously
It is coupled to the transistor Q3, transistor Q4 and electric capacity C2 loops in series；The diode D3 is parallel to transistor Q3's
Two ends, diode D4 is parallel to transistor Q4 two ends, and diode D6 is parallel to transistor Q6 two ends；The electric capacity C4 is in parallel
The two ends of branch road are constituted in inductance L4 and diode D9；Also include IGCT SCR3, IGCT SCR4, IGCT SCR5, brilliant lock
Pipe SCR6, positive battery group PBat, negative battery group NBat, inductance L1 and inductance L2；The IGCT SCR3 and IGCT SCR4 are simultaneously
One end after connection is connected with positive battery group PBat, one end and negative battery group NBat after IGCT SCR5 and IGCT SCR6 are in parallel
Series connection；The other end after the IGCT SCR3 and IGCT SCR4 are in parallel is connected with inductance L1, IGCT SCR5 and IGCT
The other end after SCR6 is in parallel is connected with inductance L2.
Further description, in addition to civil power, IGCT SCR1, IGCT SCR2, the positive pole of the live wire of the civil power
It is connected with IGCT SCR1 one end, the IGCT SCR1 other end is connected to inductance L1 positive pole；The live wire of the civil power
Negative pole is connected with IGCT SCR2 one end, and the IGCT SCR2 other end is connected to inductance L2 positive pole；The zero of the civil power
Line N one end is connected to positive battery group PBat negative pole, and the zero line N other end is connected to negative battery group NBat positive pole.
Further description, the transistor Q1, transistor Q2, transistor Q3, transistor Q4, transistor Q5 and crystal
Pipe Q6 is insulated gate bipolar transistor IGBT.
Operation principle：
1st, the positive half cycle of civil power, IGCT SCR1 conductings, IGCT SCR3/4 cut-offs.IGBT Q1 carry out PWM, IGBT
Q2 ends.When Q1 is turned on, civil power live wire passes through SCR1-inductance L1-Q1-civil power center lines N formation loop, inductance L1 electric currents
Increase, inductance L1 energy storage.When Q1 ends, civil power passes through SCR1-inductance L1-D2-C1-civil power center lines N formation loop, electricity
Feel L1 electric currents to reduce, inductance L1 releases energy, electric capacity C1 is electrically charged.AC/DC is realized in this process.Auxiliary switch Q5 is led prior to Q1
Logical, after Q1 is turned on, Q5 is closed, and its course of work is as follows：When Q1 ends, Q5 conductings, the increase of resonant inductance L3 electric currents, two
Electric current is reduced in pole pipe D2, and when electric current increases to big as electric current in L1 in L3, diode D2 electric current is reduced to 0, two
Pole pipe is ended, and because its electric current is to gradually decrease, its reverse recovery loss greatly reduces.Hereafter civil power passes through SCR1-inductance
L1-resonant inductance L3-Q5-civil power center lines N formation loop, now opens Q1 again, and because L3 inductance value is much smaller than L1, Q1 is opened
It is logical to belong to no-voltage, zero current turning-on.Turn off in Q5, L3 that electric current is by D7 and C3 resonance again after Q1 is opened, due to depositing for C3
Q5 belongs to zero voltage turn-off.Energy in L3 is transferred to C3.When Q1 is turned off, the electric current stored due to C3 in voltage, L1 is first
C3 is discharged, the energy in C3 is transferred to C1 by D8, and Q1 belongs to zero voltage turn-off, finished when C3 energy is all shifted, inductance
Electric current in L1 continues to charge to C1 by D2.So, Q1/Q5 realizes zero current turning-on, zero voltage turn-off.Diode D2 is real
Show soft switching, reduce reverse recovery loss.
2nd, the positive half cycle of civil power, IGCT SCR2 cut-offs, IGCT SCR5 conductings.IGBT Q3 end, and IGBTQ4 carries out PWM
Modulation.When Q4 conductings, C2-civil power center line N-negative battery group NBat-SCR5-inductance L2-Q4 formation loop, inductance L2 electricity
Stream increase, inductance L2 energy storage.When Q4 is closed, negative battery group NBat-SCR5-inductance L2-D3-civil power center lines N forms loop,
The electric current of inductance 2 is reduced, and inductance L2 releases energy.In the opening of Q4, turn off during all realize the charging to negative battery group.
3rd, civil power negative half period, IGCT SCR2 conductings, IGCT SCR5/6 cut-offs.IGBT Q3 carry out PWM, IGBT
Q4 ends.When Q3 is turned on, civil power center line N passes through Q3-inductance L2-SCR2-civil power live wires formation loop, inductance L2 electric currents
Increase, inductance L2 energy storage.When Q3 ends, civil power center line N is formed back by C2-D4-inductance L2-SCR2-civil power live wires
Road, inductance L2 electric currents are reduced, and inductance L2 releases energy, and electric capacity C2 is electrically charged.AC/DC is realized in this process.Auxiliary switch Q6 is first
In Q3 conductings, after Q3 is turned on, Q6 is closed, and its course of work is as follows：When Q3 ends, Q6 conductings, resonant inductance L4 electric currents
Electric current is reduced in increase, diode D4, when electric current increases to big as electric current in L2 in L4, and diode D4 electric current is reduced
To 0, diode ends, and because its electric current is to gradually decrease, its reverse recovery loss greatly reduces.Hereafter civil power center line N passes through
Q6-resonant inductance L4-inductance L2-SCR2-civil power live wires formation loop, now opens Q3, because L4 inductance value is far small again
In L2, Q3, which is opened, belongs to no-voltage, zero current turning-on.Electric current is turned off in Q6, L4 again after Q3 is opened by D9 and C4 resonance, by
In C4 presence, Q6 belongs to zero voltage turn-off.Energy in L4 is transferred to C4.When Q3 is turned off, because C4 is stored in voltage, L2
Electric current first C4 is discharged, the energy in C4 is transferred to C2 by D10, and Q3 belongs to zero voltage turn-off, when C4 energy is all shifted
Finish, the electric current in inductance L2 continues to charge to C2 by D4.So, Q3/Q6 realizes zero current turning-on, zero voltage turn-off.
Diode D4 realizes soft switching, reduces reverse recovery loss.
4th, civil power negative half period, IGCT SCR1 cut-offs, IGCT SCR3 conductings.IGBT Q1 end, and IGBTQ2 carries out PWM
Modulation.When Q2 conductings, C1-Q2-L1-SCR3-positive battery group PBat-civil power center line N formation loop, inductance L1 electric currents increase
Plus, inductance L1 energy storage.When Q2 is closed, positive battery group PBat-civil power center line N-D1-inductance L1-SCR3 forms loop, inductance
L1 electric currents are reduced, and inductance L1 releases energy.In the opening of Q2, turn off during all realize the charging for aligning battery pack.
5th, when city's electrical anomaly, SCR1/2 is closed.SCR4/6 is turned on, and IGBT Q1/3 carry out PWM, and IGBT Q2/4 are cut
Only.When Q1 is turned on, positive battery group PBat is increased by SCR4-L1-Q1-civil power center line N formation loop, inductance L1 electric currents,
Inductance L1 energy storage.When Q1 ends, positive battery group PBat passes through SCR4-L1-D2-C1-civil power center line N formation loop, electricity
Feel L1 electric currents to reduce, inductance L1 releases energy, electric capacity C1 is electrically charged, and realizes battery mode boost function.Auxiliary switch Q5 prior to
Q1 is turned on, after Q1 is turned on, and Q5 is closed, and its course of work is as follows：When Q1 ends, Q5 conductings, resonant inductance L3 electric currents increase
Plus, electric current is reduced in diode D2, and when electric current increases to big as electric current in L1 in L3, diode D2 electric current is reduced to
0, diode cut-off, because its electric current is to gradually decrease, its reverse recovery loss greatly reduces.Hereafter positive battery group PBat passes through
SCR4-inductance L1-resonant inductance L3-Q5-civil power center lines N formation loop, now opens Q1, because L3 inductance value is far small again
In L1, Q1, which is opened, belongs to no-voltage, zero current turning-on.Electric current is turned off in Q5, L3 again after Q1 is opened by D7 and C3 resonance, by
In C3 presence, Q5 belongs to zero voltage turn-off.Energy in L3 is transferred to C3.When Q1 is turned off, because C3 is stored in voltage, L1
Electric current first C3 is discharged, the energy in C3 is transferred to C1 by D8, and Q1 belongs to zero voltage turn-off, when C3 energy has all been shifted
Finish, the electric current in inductance L1 continues to charge to C1 by D2.So, Q1/Q5 realizes zero current turning-on, zero voltage turn-off.Two
Pole pipe D2 realizes soft switching, reduces reverse recovery loss.
When Q3 is turned on, negative battery group NBat passes through civil power center line N-Q3-L2-SCR6 formation loop, inductance L2 electric currents
Increase, inductance L2 energy storage.When Q3 ends, negative battery group NBat is formed back by civil power center line N-C2-D4-L2-SCR6
Road, inductance L2 electric currents are reduced, and inductance L2 releases energy, and electric capacity C2 is electrically charged, and realizes battery mode boost function.Auxiliary switch Q6
Prior to Q3 conductings, after Q3 is turned on, Q6 is closed, and its course of work is as follows：When Q3 ends, Q6 conductings, resonant inductance L4 electricity
Electric current is reduced in stream increase, diode D4, and when electric current increases to big as electric current in L2 in L4, diode D4 electric current subtracts
Less to 0, diode cut-off, because its electric current is to gradually decrease, its reverse recovery loss greatly reduces.Hereafter negative battery group NBat
By civil power center line N-Q6-resonant inductances L4-inductance L2-SCR6 formation loop, Q3 is now opened again, due to L4 inductance value
Much smaller than L2, Q3, which is opened, belongs to no-voltage, zero current turning-on.Turn off electric current in Q6, L4 again after Q3 is opened humorous with C4 by D9
Shake, due to C4 presence, Q6 belongs to zero voltage turn-off.Energy in L4 is transferred to C4.When Q3 is turned off, because C4 stores electricity
Electric current in pressure, L2 first discharges C4, and the energy in C4 is transferred to C2 by D10, and Q3 belongs to zero voltage turn-off, when C4 energy is complete
Portion's transfer is finished, and the electric current in inductance L2 continues to charge to C2 by D4.So, Q3/Q6 realizes zero current turning-on, no-voltage
Shut-off.Diode D4 realizes soft switching, reduces reverse recovery loss.
Technical principle of the present utility model is described above in association with specific embodiment.These descriptions are intended merely to explain this reality
With new principle, and the limitation to the utility model protection domain can not be construed in any way.Based on explanation herein,
Those skilled in the art, which would not require any inventive effort, can associate other embodiments of the present utility model,
These modes are fallen within protection domain of the present utility model.
Claims (3)
1. the Sofe Switch rectification charging multiplex circuit of a kind of pair of boost structure, it is characterised in that：Including transistor Q1, transistor
Q2, transistor Q5, diode D1, diode D2, diode D5, diode D7, diode D8, electric capacity C1, electric capacity C3 and inductance
L3；
The transistor Q1, transistor Q2 and electric capacity C1 loops in series, inductance L3, transistor Q5 and diode D7 and two poles
The branch circuit parallel connection of pipe D8 series connection is in the transistor Q1, transistor Q2 and electric capacity C1 loops in series；
The diode D1 is parallel to transistor Q1 two ends, and diode D2 is parallel to transistor Q2 two ends, and diode D5 is simultaneously
It is coupled to transistor Q5 two ends；
The electric capacity C3 is parallel to the two ends that inductance L3 and diode D7 constitutes branch road；
Also include transistor Q3, transistor Q6, transistor Q4, diode D3, diode D6, diode D4, diode D9, two poles
Pipe D10, electric capacity C2, electric capacity C4 and inductance L4；
The transistor Q3, transistor Q4 and electric capacity C2 loops in series, inductance L4, transistor Q6 and diode D9 and two poles
The branch circuit parallel connection of pipe D10 series connection is in the transistor Q3, transistor Q4 and electric capacity C2 loops in series；
The diode D3 is parallel to transistor Q3 two ends, and diode D4 is parallel to transistor Q4 two ends, and diode D6 is simultaneously
It is coupled to transistor Q6 two ends；
The electric capacity C4 is parallel to the two ends that inductance L4 and diode D9 constitutes branch road；
Also include IGCT SCR3, IGCT SCR4, IGCT SCR5, IGCT SCR6, positive battery group PBat, negative battery group
NBat, inductance L1 and inductance L2；
One end after the IGCT SCR3 and IGCT SCR4 are in parallel is connected with positive battery group PBat, IGCT SCR5 and brilliant lock
Connected with negative battery group NBat one end after pipe SCR6 is in parallel；
The other end after the IGCT SCR3 and IGCT SCR4 are in parallel is connected with inductance L1, IGCT SCR5 and IGCT
The other end after SCR6 is in parallel is connected with inductance L2.
2. the Sofe Switch rectification charging multiplex circuit of a kind of pair of boost structure according to claim 1, it is characterised in that：
Also include civil power, IGCT SCR1, IGCT SCR2, the positive pole of the live wire of the civil power is connected with IGCT SCR1 one end,
The IGCT SCR1 other end is connected to inductance L1 positive pole；
The negative pole of the live wire of the civil power is connected with IGCT SCR2 one end, and the IGCT SCR2 other end is connected to inductance L2
Positive pole；
The zero line N of civil power one end is connected to positive battery group PBat negative pole, and the zero line N other end is connected to negative battery group
NBat positive pole.
3. the Sofe Switch rectification charging multiplex circuit of a kind of pair of boost structure according to claim 1, it is characterised in that：
The transistor Q1, transistor Q2, transistor Q3, transistor Q4, transistor Q5 and transistor Q6 are insulated gate bipolar crystal
Pipe IGBT.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720288749.XU CN206533296U (en) | 2017-03-21 | 2017-03-21 | A kind of Sofe Switch rectification charging multiplex circuit of pair of boost structure |
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| CN201720288749.XU CN206533296U (en) | 2017-03-21 | 2017-03-21 | A kind of Sofe Switch rectification charging multiplex circuit of pair of boost structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106877695A (en) * | 2017-03-21 | 2017-06-20 | 佛山市新光宏锐电源设备有限公司 | A kind of pair of Sofe Switch rectification charging multiplex circuit of boost structures |
| CN110011540A (en) * | 2019-04-13 | 2019-07-12 | 西华大学 | Single inductance two-stage type dual input Tri-BOOST converter and control method |
-
2017
- 2017-03-21 CN CN201720288749.XU patent/CN206533296U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106877695A (en) * | 2017-03-21 | 2017-06-20 | 佛山市新光宏锐电源设备有限公司 | A kind of pair of Sofe Switch rectification charging multiplex circuit of boost structures |
| CN110011540A (en) * | 2019-04-13 | 2019-07-12 | 西华大学 | Single inductance two-stage type dual input Tri-BOOST converter and control method |
| CN110011540B (en) * | 2019-04-13 | 2021-04-13 | 西华大学 | Single-inductor two-stage type double-input Tri-BOOST converter and control method |
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Assignee: Foshan Huabao Power Equipment Co., Ltd. Assignor: Sunshine & Cell Power System Equipment Co. Ltd. Contract record no.: 2019440000028 Denomination of utility model: Double-boost-structure soft switching rectification charging multiplex circuit Granted publication date: 20170929 License type: Exclusive License Record date: 20190130 |
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Effective date of registration: 20210513 Address after: 528000 floor 1-5, block 6, 115 Zhangcha 1st Road, Chancheng District, Foshan City, Guangdong Province Patentee after: Foshan Huabao Power Equipment Co.,Ltd. Address before: 528000 block 6, 115 Zhangcha 1st Road, Chancheng District, Foshan City, Guangdong Province Patentee before: SUNSHINE & CELL POWER SYSTEM EQUIPMENT Co.,Ltd. |