CN103442538A - Passive element integration method in PFC circuit - Google Patents

Passive element integration method in PFC circuit Download PDF

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Publication number
CN103442538A
CN103442538A CN2013103733654A CN201310373365A CN103442538A CN 103442538 A CN103442538 A CN 103442538A CN 2013103733654 A CN2013103733654 A CN 2013103733654A CN 201310373365 A CN201310373365 A CN 201310373365A CN 103442538 A CN103442538 A CN 103442538A
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China
Prior art keywords
pfc circuit
winding
integrated
inductance
circuit
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CN2013103733654A
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Chinese (zh)
Inventor
邓成
邹娟
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Xiangtan University
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Xiangtan University
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Priority to CN2013103733654A priority Critical patent/CN103442538A/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10Technologies 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 invention discloses a passive element integration method in a PFC circuit. According to the integration method, a Boost inductor, an EMI filter inductor and an EMI filter capacitor in the PFC circuit are all integrated in an E-I-E-type magnetic core structure by adopting a flexible PCB, the size of the circuit is effectively controlled, the circuit can be moved, bent, and twisted without damaging characteristics of wires, accord with different shapes and special packaging sizes, and bear millions of times of dynamic bending, space waste caused by discrete elements in the PFC circuit is avoided, and the size of the PFC circuit is reduced. The passive element integration method in the PFC circuit ensures that the PFC circuit is simple in structure, is strong in practicability and has high popularization and application value.

Description

The integrated approach of passive component in a kind of pfc circuit
Technical field
The invention belongs to the pfc circuit technical field, relate in particular to the integrated approach of passive component in a kind of pfc circuit.
Background technology
In existing pfc circuit, usually add an inductance (suitably choosing inductance value) between rectifier bridge stack and filter capacitor, utilize characteristic that on inductance, electric current can not suddenly change to carry out the fluctuation of smoothing capacity charging hard pulse, improve the distortion of supply line's current waveform, and the characteristic of utilizing voltage leading current on inductance is the characteristic of compensation filter capacitance current leading voltage also, and power factor, electromagnetic compatibility and electromagnetic interference are improved.
Simultaneously because existing pfc circuit passes through the discrete connection of ordinary circuit board, the shared volume of the Boost inductance in pfc circuit, EMI filter inductance and EMI filter capacitor is larger, can not meet the demand of some special occasions.
Summary of the invention
The invention provides the integrated approach of passive component in a kind of pfc circuit, be intended to solve due to existing pfc circuit by the discrete connection of ordinary circuit board, the shared volume of Boost inductance in pfc circuit, EMI filter inductance and EMI filter capacitor is larger, can not meet the problem of the demand of some special occasions.
The object of the present invention is to provide the integrated approach of passive component in a kind of pfc circuit, this integrated approach adopts flexible PCB that the Boost inductance in pfc circuit, EMI filter inductance and EMI filter capacitor all are integrated in an E-I-E type core structure.
The integrated approach of passive component in pfc circuit provided by the invention, this integrated approach adopts flexible PCB by the Boost inductance in pfc circuit, EMI filter inductance and EMI filter capacitor all are integrated in an E-I-E type core structure, effectively realize the control to the circuit volume, removable, crooked, reverse and can not damage the characteristic of wire, can defer to difformity and special package dimension, can bear the dynamic bending of millions of times simultaneously, avoided the discrete space waste caused of each element in the pfc circuit, reduced the volume of pfc circuit, simple in structure, practical, having stronger propagation and employment is worth.
The accompanying drawing explanation
Fig. 1 is passive component integrated morphology graphics in the pfc circuit that provides of the embodiment of the present invention;
Fig. 2 is the winding W that the embodiment of the present invention provides 1~W 6the flexible PCB structural representation that uses;
Fig. 3 is the winding W that the embodiment of the present invention provides 7~W 8the flexible PCB structural representation that uses;
Fig. 4 is the passive component integrated morphology X-Y scheme that the embodiment of the present invention provides;
Fig. 5 is the integrated morphology equivalent circuit diagram that the embodiment of the present invention provides.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is described in further detail.Should be appreciated that specific embodiment described herein is only in order to explain the present invention, and be not used in the restriction invention.
Fig. 1 shows Boost inductance that the embodiment of the present invention provides and the integrated structure of electromagnetic interface filter.For convenience of explanation, only show part related to the present invention.
The object of the present invention is to provide the integrated approach of passive component in a kind of pfc circuit, this integrated approach adopts flexible PCB that the Boost inductance in pfc circuit, EMI filter inductance and EMI filter capacitor all are integrated in an E-I-E type core structure.
Below in conjunction with drawings and the specific embodiments, application principle of the present invention is further described.
As Figure 1-Figure 5, winding W 1~W 8all by flexible PCB, formed winding W 1~W 6the flexible PCB structure of using comprises: insulating tape 1, the first Copper Foil 2, electric Jie's film 3 and the second Copper Foil 4 form; Winding W 7~W 8the flexible PCB structure of using comprises: insulating tape 1 and the 3rd Copper Foil 4; Winding W 1~W 4be wound on the side column of E type magnetic core winding W 5~W 6be wound on the center pillar of E type magnetic core winding W 7~W 8be wound on I type magnetic core, wherein, winding W 1the end that enters with civil power, be connected, W then 2~W 4priority and W 1series connection, W 4two-way output, one and W 5be connected, another and W 6be connected, W 5and W 6an output jointly receive the earth or casing, W 5and W 6another output receive the interchange end of rectifier bridge stack.W 7with W 8series connection, be connected between rectifier bridge stack and switching tube winding W 1~W 4for forming common mode inductance and differential mode capacitor, winding W 1~W 4for forming differential mode inductance and common mode capacitance, winding W 1~W 4for forming the Boost inductance.
The present invention is by adopting flexible PCB that inductance and electric capacity are integrated in to the same space, can meet complex circuit, process many signals or special electricity or mechanical property requirements are arranged, flexible circuit is a kind of design alternative preferably, flexible circuit can be realized the control to the circuit volume effectively, removable, crooked, reverse and can not damage the characteristic of wire, can defer to difformity and special package dimension, owing to can bearing millions of time dynamic bendings, flexible circuit can be applicable to well continuous motion or regularly motion in link in system.
The present invention, by adopting flexible PCB that inductance and electric capacity are integrated in to the same space, all is integrated in the Boost inductance in pfc circuit, EMI filter inductance and EMI filter capacitor in an E-I-E type core structure.The present invention has avoided the discrete space waste caused of each element of pfc circuit, has reduced the volume of pfc circuit, under optimal situation, can reduce 20%.
The integrated approach of passive component in the pfc circuit that the embodiment of the present invention provides, this integrated approach adopts flexible PCB by the Boost inductance in pfc circuit, EMI filter inductance and EMI filter capacitor all are integrated in an E-I-E type core structure, effectively realize the control to the circuit volume, removable, crooked, reverse and can not damage the characteristic of wire, can defer to difformity and special package dimension, can bear the dynamic bending of millions of times simultaneously, avoided the discrete space waste caused of each element in the pfc circuit, reduced the volume of pfc circuit, simple in structure, practical, having stronger propagation and employment is worth.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.

Claims (4)

1. the integrated approach of passive component in a pfc circuit, is characterized in that, this integrated approach adopts flexible PCB that the Boost inductance in pfc circuit, EMI filter inductance and EMI filter capacitor all are integrated in an E-I-E type core structure.
2. the integrated approach of passive component in pfc circuit as claimed in claim 1, is characterized in that winding W 1~W 4be wound on respectively the side column of E type magnetic core, winding W 5~W 6be wound on respectively the center pillar of E type magnetic core, winding W 7~W 8be wound on respectively on I type magnetic core.
3. the integrated approach of passive component in pfc circuit as claimed in claim 1, is characterized in that winding W 1the end 01 that enters with 02, with civil power, be connected, winding W 1~W 4go out end and enter the numbering of end by 03-05-07 and 02-04-08 and be connected in proper order, winding W 4go out end 10 and W 5with being connected, go out end 09 and W 6with being connected, winding W 5and W 6one go out end 13 and jointly receive the earth, casing, both ends 11 and 12 that goes out are received rectifier bridge stack and are exchanged end.Winding W 5and W 6after series connection, be connected between rectifier bridge stack output high-pressure side 14 and switch pipe end 16.
4. the integrated approach of passive component in pfc circuit as claimed in claim 1, is characterized in that winding W 1~W 4for integrated common mode inductance and differential mode capacitor, winding W 5~W 6for integrated differential mode inductance and common mode capacitance, winding W 7~W 8for integrated Boost inductance.
CN2013103733654A 2013-08-23 2013-08-23 Passive element integration method in PFC circuit Pending CN103442538A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013103733654A CN103442538A (en) 2013-08-23 2013-08-23 Passive element integration method in PFC circuit

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Application Number Priority Date Filing Date Title
CN2013103733654A CN103442538A (en) 2013-08-23 2013-08-23 Passive element integration method in PFC circuit

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104410257A (en) * 2014-12-23 2015-03-11 湘潭大学 Passive component integrated device of LCL filter
CN104467398B (en) * 2014-12-23 2017-04-12 湘潭大学 Integrating device of EMI filter and boost inductor in bridgeless PFC circuit
CN106972753A (en) * 2017-05-22 2017-07-21 湘潭大学 A kind of Boost controlled resonant converters passive element integrating device
CN107086792A (en) * 2017-06-13 2017-08-22 湘潭大学 A kind of passive element integrating device of crisscross parallel Sepic circuits
CN107682975A (en) * 2017-11-15 2018-02-09 湘潭大学 A kind of passive element integrating device of current balance circuit
CN108233680A (en) * 2018-01-30 2018-06-29 湘潭大学 A kind of passive element integrating device applied to CLCL controlled resonant converters
CN112332653A (en) * 2020-10-28 2021-02-05 西安电子科技大学 3D integrated EMI filter based on multistage CL circuit

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2784788A1 (en) * 1998-10-19 2000-04-21 Univ Nantes Optimized transformer metallic sheet construction having E-shape sections and outer I-shape section same sheet formed and with optimized E-shape dimensions.
CN101593606A (en) * 2009-03-30 2009-12-02 浙江大学 Full-integrated EMI filter based on flexible multi-layer tapes
US20100271164A1 (en) * 2009-04-28 2010-10-28 Tdk Corporation Choke coil for interleaved pfc circuit
CN102208242A (en) * 2011-03-18 2011-10-05 华为技术有限公司 Magnetic integration inductor and manufacturing method thereof, and bridgeless power factor correct (PFC) circuit
CN102938608A (en) * 2012-11-07 2013-02-20 浙江大学 Passive component integrated device of power-factor correction circuit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2784788A1 (en) * 1998-10-19 2000-04-21 Univ Nantes Optimized transformer metallic sheet construction having E-shape sections and outer I-shape section same sheet formed and with optimized E-shape dimensions.
CN101593606A (en) * 2009-03-30 2009-12-02 浙江大学 Full-integrated EMI filter based on flexible multi-layer tapes
US20100271164A1 (en) * 2009-04-28 2010-10-28 Tdk Corporation Choke coil for interleaved pfc circuit
CN102208242A (en) * 2011-03-18 2011-10-05 华为技术有限公司 Magnetic integration inductor and manufacturing method thereof, and bridgeless power factor correct (PFC) circuit
CN102938608A (en) * 2012-11-07 2013-02-20 浙江大学 Passive component integrated device of power-factor correction circuit

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104410257A (en) * 2014-12-23 2015-03-11 湘潭大学 Passive component integrated device of LCL filter
CN104467398B (en) * 2014-12-23 2017-04-12 湘潭大学 Integrating device of EMI filter and boost inductor in bridgeless PFC circuit
CN106972753A (en) * 2017-05-22 2017-07-21 湘潭大学 A kind of Boost controlled resonant converters passive element integrating device
CN106972753B (en) * 2017-05-22 2019-05-14 湘潭大学 A kind of Boost controlled resonant converter passive element integrating device
CN107086792A (en) * 2017-06-13 2017-08-22 湘潭大学 A kind of passive element integrating device of crisscross parallel Sepic circuits
CN107086792B (en) * 2017-06-13 2019-08-06 湘潭大学 A kind of passive element integrating device of crisscross parallel Sepic circuit
CN107682975A (en) * 2017-11-15 2018-02-09 湘潭大学 A kind of passive element integrating device of current balance circuit
CN108233680A (en) * 2018-01-30 2018-06-29 湘潭大学 A kind of passive element integrating device applied to CLCL controlled resonant converters
CN108233680B (en) * 2018-01-30 2020-04-21 湘潭大学 Passive element integrated device applied to CLCL resonant converter
CN112332653A (en) * 2020-10-28 2021-02-05 西安电子科技大学 3D integrated EMI filter based on multistage CL circuit

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Application publication date: 20131211