CN106783103A - One kind switch control variable inductor - Google Patents
One kind switch control variable inductor Download PDFInfo
- Publication number
- CN106783103A CN106783103A CN201611140068.5A CN201611140068A CN106783103A CN 106783103 A CN106783103 A CN 106783103A CN 201611140068 A CN201611140068 A CN 201611140068A CN 106783103 A CN106783103 A CN 106783103A
- Authority
- CN
- China
- Prior art keywords
- magnetic core
- inductance
- variable inductor
- winding
- switch control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
The invention discloses one kind switch control variable inductor, including magnetic core, magnetic core is provided with main inductance winding, control inductor winding is additionally provided with the magnetic core, control inductor winding is connected with the regulation circuit of one or more parallel connections, there is independent switch to control per regulation circuit all the way, by being switched on or switched off corresponding switch, realize the regulation to the equivalent sensibility reciprocal of main inductance input.Adjustable inductance of the invention does not need magnetic core to work in inelastic region, and realizes that the sensibility reciprocal of inductance is adjustable.Adjusting method in the present invention has the advantages of loss is low, and the inductance linearity is good.The shortcomings of overcoming the Adjusted Option complexity of existing variable inductor presence, be lost high.
Description
Technical field
The invention belongs to electronic applications, the present invention relates to one kind switch control variable inductor.
Background technology
Inductor is the critical elements of various electronic power converters, can be used to realize that the functions such as filtering, resonance are needed
Ask.General inductance component, its sensibility reciprocal is fixed after the completion of design, and can not be carried out rationally according to different converter operating modes
Adjustment, realize the optimization of power inverter performance.For example, in radio energy transmission system, with transmission operating mode not
Together, it may occur that the failure of resonance loop.Therefore, by dynamic adjustment inductance value, it is possible to achieve resonance type wireless electric energy is passed
The performance of defeated system is optimized.
In order to realize the controllable of inductance value, prior art generally realizes the tune of sensibility reciprocal using the nonlinear characteristic of magnetic core
It is whole.Accordingly, it would be desirable to magnetic bias is carried out to magnetic core, so as to change inductance value.Controllable impedance in such as CN 1301390A, by using
Two serial or parallel connections of inductor winding, the exchange flux for producing inductor winding is offset on magnetic bias winding, so as to avoid
The coupling of inductor winding and magnetic bias winding.This scheme is only suitable for d. c. reactor and carrys out increment of adjustment inductance value, and uncomfortable
Exchange (amplitude) inductance value is adjusted for varindor.Further, since the magnetic flux that its inductance coil is produced is not by inclined
Magnetic circuit where magnetic winding so that the magnetic core utilization rate of the program is low.
Variable inductor scheme in the A of CN 102306533 controls bolt to adjust the size of magnetic core air gap using sensibility reciprocal
To change the sensibility reciprocal of inductor.Due to can not dynamically adjust sensibility reciprocal by electrical parameter, therefore substantially determine inductance value inductance with tradition
It is identical.
The adjustable inductance also having at present, makes inductance coil spatially mutual with the magnetic circuit of inductance value control coil just
Hand over, so that both magnetic fluxs are mutually orthogonal, electricity is changed indirectly by changing the size of DC current on control coil
The degree of saturation of magnetic core is felt, so as to change inductance value.Program control method is comparatively laborious, needs also exist for using the non-thread of magnetic core
Property characteristic, magnetic core utilization rate is low, and inductance value control range is smaller.
In sum, the variable inductor generally existing magnetic core utilization rate of prior art is low, volume is relatively large, inductance value
The relatively small, shortcoming that inductance value excursion is small.
The content of the invention
It is an object of the invention to the equivalent sensibility reciprocal using switch adjustment inductor, the dynamic adjustment of inductance value is realized.
For achieving the above object, the technical scheme is that：
One kind switch control variable inductor, including magnetic core, magnetic core are provided with main inductance winding, are additionally provided with the magnetic core
Control inductor winding, control inductor winding is connected with the regulation circuit of one or more parallel connections, has independence per regulation circuit all the way
Switch control, by being switched on or switched off corresponding switch, realize the regulation to the equivalent sensibility reciprocal of main inductance input.
Further to improve, the regulation circuit includes spiral coil inductive, and magnetic core is inserted with spiral coil inductive.
Further to improve, the regulation circuit includes capacitor.
Further to improve, the switch is semiconductor switch pipe.
Further to improve, the magnetic core is provided with 2 or more than 2 controling windings.
Further to improve, the magnetic core is provided with the main inductance winding of 2 or more than 2.
Further to improve, the magnetic core is ferrocart core or ferrite.
The beneficial effects of the invention are as follows：
Adjustable inductance of the invention does not need magnetic core to work in inelastic region, and realizes that the sensibility reciprocal of inductance is adjustable.This hair
Adjusting method in bright has the advantages of loss is low, and the inductance linearity is good.Overcome the adjustment side that existing variable inductor is present
The shortcomings of case is complicated, loss is high.
Brief description of the drawings
Fig. 1 is principle schematic of the invention；
Fig. 2 is the connection diagram of embodiment 1.
Specific embodiment
Below in conjunction with accompanying drawing to the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described.
Embodiment 1
Principle of the invention is as shown in figure 1, wherein L0It is main inductor winding, LcIt is control inductance, L1~LnIt is regulation electricity
Road, L0The equivalent inductance L of input0eqInductance value regulation by corresponding controlling switch S1~SnRealize, regulation process is not
Need extra magnetic bias driving source, it is only necessary to maintain being turned on or off for switch.
As the inductance L of certain regulation circuitnDuring access, L0The equivalent inductance L of input0eqFor：
Wherein, QnTo control the Q values of conductive loop, it is defined as inductance LcPlus LnImpedance and control loop equivalent series
The ratio of resistance.
knIt is L0With the equivalent coupled coefficient of master control inductance, it is defined as：
As can be seen here, the regulation of inductance value only with main inductance L0With the coefficient of coup and L of control inductance LcnSize phase
Close.Therefore, control inductance need not be very big energy storage inductor, it is only necessary to the distribution of appropriate adjustment coiling, you can realize coupling
The regulation of coefficient.By corresponding switch motion, the equivalent inductance adjustment of main inductance input is realized.
If by LnReplace with capacitor, it is also possible to realize the purpose of sensibility reciprocal adjustment, its capacitor element can be equivalent to LnIt is negative
Value.The adjustment principle of sensibility reciprocal is identical.
Fig. 2 is connection diagram of the invention.Main inductance L0On the toroidal core being wound on control inductance Lc, annular magnetic
Core has the effect of energy storage and coupling.L in regulation circuit1, L2, L3Rod core is inserted with, L is adjusted1, L2, L3Bar-shaped magnetic
Core specification and position, you can realize to knAdjustment.
According to different applications, S1、S2、S3Can be opened or multiple open-minded with single, so as to adjust the equivalent coefficient of coup
kn.When multiple switch is turned on, knL in calculating formulanCorresponding shunt inductance value should be replaced with.Switch can be opened using semiconductor
Guan Guan.
According to different applications, toroidal core, the material of rod core can be ferrocart core, ferrite etc..Main inductance and
Controlling the number of inductance also can on demand be set to multiple.
Described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on the present invention
In embodiment, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of protection of the invention.
Claims (7)
1. a kind of switch control variable inductor, including magnetic core, magnetic core is provided with main inductance winding, it is characterised in that the magnetic
Control inductor winding is additionally provided with core, control inductor winding is connected with the regulation circuit of one or more parallel connections, per regulation electricity all the way
The switch control of Lu Junyou independences, by being switched on or switched off corresponding switch, realizes the tune to the equivalent sensibility reciprocal of main inductance input
Section.
2. according to claim 1 a kind of switch control variable inductor, it is characterised in that the regulation circuit includes helical
Circle inductance, is inserted with magnetic core in spiral coil inductive.
3. according to claim 1 a kind of switch control variable inductor, it is characterised in that the regulation circuit includes electric capacity
Device.
4. a kind of switch according to claim 1 controls variable inductor, it is characterised in that the switch is opened for semiconductor
Guan Guan.
5. according to claim 1 a kind of switch control variable inductor, it is characterised in that the magnetic core is provided with 2 or 2
Individual above controling winding.
6. according to claim 1 a kind of switch control variable inductor, it is characterised in that the magnetic core is provided with 2 or 2
Main inductance winding more than individual.
7. according to claim 1 a kind of switch control variable inductor, it is characterised in that the magnetic core is ferrocart core or iron
Oxysome.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611140068.5A CN106783103A (en) | 2016-12-12 | 2016-12-12 | One kind switch control variable inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611140068.5A CN106783103A (en) | 2016-12-12 | 2016-12-12 | One kind switch control variable inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106783103A true CN106783103A (en) | 2017-05-31 |
Family
ID=58880211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611140068.5A Pending CN106783103A (en) | 2016-12-12 | 2016-12-12 | One kind switch control variable inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106783103A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5319343A (en) * | 1990-08-21 | 1994-06-07 | Powercube Corporation | Integrated magnetic inductor having series and common mode windings |
| CN102857191A (en) * | 2012-08-30 | 2013-01-02 | 电子科技大学 | Inductance-variable resonator |
| CN206322578U (en) * | 2016-12-12 | 2017-07-11 | 福建工程学院 | One kind switch control variable inductor |
-
2016
- 2016-12-12 CN CN201611140068.5A patent/CN106783103A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5319343A (en) * | 1990-08-21 | 1994-06-07 | Powercube Corporation | Integrated magnetic inductor having series and common mode windings |
| CN102857191A (en) * | 2012-08-30 | 2013-01-02 | 电子科技大学 | Inductance-variable resonator |
| CN206322578U (en) * | 2016-12-12 | 2017-07-11 | 福建工程学院 | One kind switch control variable inductor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108736726B (en) | Converter | |
| CN107482793B (en) | Forward and reverse parallel coil design method for suppressing frequency splitting | |
| CN109995121B (en) | Power optimized many-to-many wireless charging device and control method | |
| CN2911906Y (en) | Controllable 3-phase combined reactor | |
| CN206322578U (en) | One kind switch control variable inductor | |
| US10193534B2 (en) | Wireless power system tuning apparatus | |
| CN108667300A (en) | A kind of magnetizing inductance variable L LC resonance transformer | |
| CN107482790A (en) | Efficiently positive wireless power supply system design method in parallel | |
| CN103219141B (en) | The varindor that a kind of inductance value is controlled | |
| CN107404155A (en) | A kind of wireless energy transform device | |
| JP2023508617A (en) | High-order space-time symmetry wireless energy transmission system and method | |
| CN106783103A (en) | One kind switch control variable inductor | |
| CN109787371B (en) | Magnetic integrated differential class E rectifier for wireless power transmission system | |
| CN103997217A (en) | Fixed-frequency series resonant converter based on flat inductor | |
| CN206163305U (en) | Convenient and practical's novel current transformer | |
| CN204810143U (en) | Anti -electromagnetic interference switching power supply | |
| CN209930044U (en) | Magnetic coupling resonant wireless energy transmission system | |
| CN201757867U (en) | High-power circuit with adjustable magnetic saturable transformer | |
| CN210743711U (en) | Common mode inductance structure | |
| CN209402248U (en) | A kind of integrated difference E class rectifier of magnetic | |
| US20190036348A1 (en) | Resonant power transfer | |
| CN211508902U (en) | Magnetic integrated double-frequency converter | |
| CN108987076B (en) | Phase angular advance electricity saver | |
| CN112886821A (en) | Magnetic integrated structure suitable for CLTLC converter | |
| CN208369472U (en) | A kind of dual output power adapter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170531 |
|
| WD01 | Invention patent application deemed withdrawn after publication |