CN208723783U - A kind of high efficiency interleaved parallel PFC converter - Google Patents
A kind of high efficiency interleaved parallel PFC converter Download PDFInfo
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- CN208723783U CN208723783U CN201820608218.9U CN201820608218U CN208723783U CN 208723783 U CN208723783 U CN 208723783U CN 201820608218 U CN201820608218 U CN 201820608218U CN 208723783 U CN208723783 U CN 208723783U
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- diode
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
Abstract
The utility model provides a kind of high efficiency interleaved parallel PFC converter.The utility model includes alternating current input power supplying (Vin), first diode (VD1), the second diode (VD2), third diode (VD3), the 4th diode (VD4), the 5th diode (VD5), the 6th diode (VD6), the 7th diode (VD7), the first inductance (L1), the second inductance (L2), third inductance (L3), first switch tube (S1), second switch (S2), third switching tube (S3), output filter capacitor (CO) load.The utility model circuit can be formed in parallel by traditional Boost pfc converter and double diode formula non-bridge PFC converter, two diodes are shared, the cost of system is reduced, simultaneously because containing non-bridge PFC converter all the way, the efficiency of system is also improved.
Description
Technical field
The utility model relates to PFC fields, and in particular to a kind of high efficiency interleaved parallel PFC converter.
Background technique
Interleaving technique can effectively reduce input and output electric current ripple, reduce EMI, simplify setting for electromagnetic interface filter
Meter difficulty improves efficiency and power density.With the development of switch power technology, circuit of power factor correction becomes Switching Power Supply
In an indispensable part, and the volume requirement of Switching Power Supply is smaller and smaller, efficiency requirements are higher and higher, is saved with this
The energy.And traditional crisscross parallel Boost pfc converter efficiency is lower, therefore how to improve interleaved parallel PFC converter
Efficiency becomes industry personnels' problem to be solved.
Utility model content
The purpose of the utility model is to overcome above-mentioned the deficiencies in the prior art, propose a kind of high efficiency interleaved parallel PFC
Converter.It is specifically included in the utility model circuit and includes alternating current input power supplying Vin, tradition Boost pfc converter and double diode
Formula non-bridge PFC converter, output filter capacitor and load.
The purpose of this utility model is achieved through the following technical solutions.
A kind of high efficiency interleaved parallel PFC converter comprising alternating current input power supplying, tradition Boost pfc converter, double
Diode-type non-bridge PFC converter, output filter capacitor and load；The tradition Boost pfc converter and double diode formula
Non-bridge PFC converter is in parallel, and output filter capacitor is connected in parallel on the output end of double diode formula non-bridge PFC converter with load；It hands over
Flow input power both ends respectively with the second inductance of double diode formula non-bridge PFC converter, third inductance connection.
Further, Boost pfc converter includes first diode, the second diode, third diode, the four or two pole
Pipe, the first inductance, first switch tube and the 5th diode, the both ends and the after first diode, the connection of the second Diode series
Both ends after three diodes, the connection of the 4th Diode series are in parallel, both ends and third after the first inductance, first switch tube series connection
Both ends after diode, the connection of the 4th Diode series are in parallel, and the anode of five diodes is connected to the first inductance, first switch tube
Between.
Further, the wherein double diode formula non-bridge PFC converter include the second diode, the 4th diode,
6th diode, the 7th diode, the second inductance, third inductance, second switch, third switching tube, the second diode, the 4th
Diode and the Boost pfc converter share, the both ends and the seven or two pole after the 6th diode, second switch series connection
Both ends after pipe, the series connection of third switching tube are in parallel；One end of second inductance is connected between the 6th diode, second switch,
The connection of one end of the other end and alternating current input power supplying；One end of third inductance is connected between the 7th diode, third switching tube,
The connection of the other end of the other end and alternating current input power supplying.
The utility model circuit has the advantage that are as follows: compared to traditional crisscross parallel Boost pfc converter, this is practical
New-type circuit can be formed in parallel by traditional Boost pfc converter and double diode formula non-bridge PFC converter, share two
Diode, reduces the cost of system, simultaneously because containing non-bridge PFC converter all the way, the efficiency of system is also mentioned
It is high.
Detailed description of the invention
Fig. 1 is a kind of high efficiency interleaved parallel PFC transformer configuration figure.
Fig. 2 a~Fig. 2 h is circuit modal graph in input voltage positive-negative half-cycle.
Specific embodiment
Specific implementation for the content and feature that the utility model is further described, below in conjunction with attached drawing to the utility model
Scheme is specifically described.
For the Basic Topological of this example as shown in Figure 1, for easy analysis, the device in circuit structure is accordingly to be regarded as ideal
Device.Wherein first switch tube S1With second switch S2With third switching tube S3Driving signal differs 180 degree, second switch
S2It works in alternating current input power supplying positive half cycle, third switching tube S3It works in alternating current input power supplying negative half period.
(1) in the positive half cycle of input voltage, first diode VD1, the 4th diode VD4Conducting, mould of the circuit in this stage
State figure is as shown in Figure 2 a, first switch tube S1Conducting, second switch S2Conducting, alternating current input power supplying VinThe first inductance is given respectively
L1With the second inductance L2Charging, output filter capacitor COPowering load.
(2) first switch tube S1Conducting, second switch S2Shutdown, circuit is as shown in Figure 2 b in the modal graph in this stage, hands over
Flow input power VinTo the first inductance L1Charging, alternating current input power supplying VinWith the second inductance L2It connects and gives output filter capacitor COIt fills
Electricity while powering load.
(3) first switch tube S1Shutdown, second switch S2Shutdown, circuit is as shown in Figure 2 c in the modal graph in this stage, hands over
Flow input power VinWith the first inductance L1It connects and gives output filter capacitor COCharging while powering load.Alternating current input power supplying Vin
With the second inductance L2It connects and gives output filter capacitor COCharging while powering load.
(4) first switch tube S1Shutdown, second switch S2Conducting, circuit is as shown in Figure 2 d in the modal graph in this stage, hands over
Flow input power VinWith the first inductance L1It connects and gives output filter capacitor COCharging while powering load.Alternating current input power supplying is given
Secondth inductance L2Charging.
(5) in the negative half period of input voltage, the second pole pipe VD2, third diode VD3Conducting, mode of the circuit in this stage
As shown in Figure 2 e, circuit is as shown in Figure 2 a in the modal graph in this stage, first switch tube S for figure1Conducting, third switching tube S3Conducting,
Alternating current input power supplying VinThe first inductance L is given respectively1With third inductance L3Charging, output filter capacitor COPowering load.
(6) first switch tube S1Conducting, third switching tube S3Shutdown, circuit this stage modal graph as shown in figure 2f, hand over
Flow input power VinTo the first inductance L1Charging, alternating current input power supplying VinWith third inductance L3It connects and gives output filter capacitor COIt fills
Electricity while powering load.
(7) first switch tube S1Shutdown, third switching tube S3Shutdown, circuit is as shown in Figure 2 g in the modal graph in this stage, hands over
Flow input power VinWith the first inductance L1It connects and gives output filter capacitor COCharging while powering load.Alternating current input power supplying Vin
With third inductance L3It connects and gives output filter capacitor COCharging while powering load.
(8) first switch tube S1Shutdown, third switching tube S3Conducting, circuit this stage modal graph as shown in fig. 2h, hand over
Flow input power VinWith the second inductance L2It connects and gives output filter capacitor COCharging while powering load.Alternating current input power supplying is given
Third inductance L3Charging.
(9) control circuit uses twin nuclei, outer voltage current inner loop, wherein first switch tube S1With second switch
S2With third switching tube S3Driving signal differs 180 degree, second switch S2It works in alternating current input power supplying positive half cycle, third is opened
Close pipe S3It works in alternating current input power supplying negative half period.
Claims (4)
1. a kind of high efficiency interleaved parallel PFC converter, it is characterised in that including alternating current input power supplying (Vin), tradition Boost
Pfc converter, double diode formula non-bridge PFC converter, output filter capacitor (CO) and load；The tradition Boost PFC becomes
Parallel operation and double diode formula non-bridge PFC converter are in parallel, output filter capacitor (CO) and load be connected in parallel on double diode formula without bridge
The output end of pfc converter；Alternating current input power supplying (Vin) both ends respectively with the second of double diode formula non-bridge PFC converter the electricity
Sense ( 2), third inductance ( 3) connection.
2. a kind of high efficiency interleaved parallel PFC converter according to claim 1, it is characterised in that the tradition Boost
Pfc converter includes first diode (VD1), the second diode (VD2), third diode (VD3), the 4th diode (VD4),
First inductance ( 1), first switch tube (S1) and the 5th diode (VD5), first diode (VD1), the second diode (VD2) string
Both ends and third diode (VD after connection connection3), the 4th diode (VD4) both ends after series connection are in parallel, the first inductance ( 1), first switch tube (S1) both ends after series connection and third diode (VD3), the 4th diode (VD4) after series connection two
End is in parallel, five diode (VD5) anode be connected to the first inductance ( 1), first switch tube (S1) between.
3. a kind of high efficiency interleaved parallel PFC converter according to claim 2, it is characterised in that the double diode formula without
Bridge pfc converter includes the second diode (VD2), the 4th diode (VD4), the 6th diode (VD6), the 7th diode
(VD7), the second inductance ( 2), third inductance ( 3), second switch (S2), third switching tube (S3), the second diode (VD2),
4th diode (VD4) shared with the Boost pfc converter, the 6th diode (VD6), second switch (S2) after series connection
Both ends and the 7th diode (VD7), third switching tube (S3) both ends after series connection are in parallel；Second inductance ( 2) one end connection
In the 6th diode (VD6), second switch (S2) between, the other end and alternating current input power supplying (Vin) one end connection；Third
Inductance ( 3) one end be connected to the 7th diode (VD7), third switching tube (S3) between, the other end and alternating current input power supplying
(Vin) the other end connection.
4. described in any item a kind of high efficiency interleaved parallel PFC converters according to claim 1 ~ 3, it is characterised in that described
Boost pfc converter and double diode formula non-bridge PFC converter have shared the second diode (VD2) and the 4th diode
(VD4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820608218.9U CN208723783U (en) | 2018-04-25 | 2018-04-25 | A kind of high efficiency interleaved parallel PFC converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820608218.9U CN208723783U (en) | 2018-04-25 | 2018-04-25 | A kind of high efficiency interleaved parallel PFC converter |
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| Publication Number | Publication Date |
|---|---|
| CN208723783U true CN208723783U (en) | 2019-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820608218.9U Active CN208723783U (en) | 2018-04-25 | 2018-04-25 | A kind of high efficiency interleaved parallel PFC converter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108400706A (en) * | 2018-04-25 | 2018-08-14 | 华南理工大学 | A kind of high efficiency interleaved parallel PFC converter |
| CN113364264A (en) * | 2021-05-21 | 2021-09-07 | 珠海格力电器股份有限公司 | PFC topological circuit and control method thereof |
-
2018
- 2018-04-25 CN CN201820608218.9U patent/CN208723783U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108400706A (en) * | 2018-04-25 | 2018-08-14 | 华南理工大学 | A kind of high efficiency interleaved parallel PFC converter |
| CN113364264A (en) * | 2021-05-21 | 2021-09-07 | 珠海格力电器股份有限公司 | PFC topological circuit and control method thereof |
| CN113364264B (en) * | 2021-05-21 | 2023-03-24 | 珠海格力电器股份有限公司 | PFC topological circuit and control method thereof |
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