CN101388276A - Inverter transformer - Google Patents
Inverter transformer Download PDFInfo
- Publication number
- CN101388276A CN101388276A CNA2008101360973A CN200810136097A CN101388276A CN 101388276 A CN101388276 A CN 101388276A CN A2008101360973 A CNA2008101360973 A CN A2008101360973A CN 200810136097 A CN200810136097 A CN 200810136097A CN 101388276 A CN101388276 A CN 101388276A
- Authority
- CN
- China
- Prior art keywords
- core part
- secondary coil
- inverter transformer
- primary winding
- iron core
- 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.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/08—High-leakage transformers or inductances
- H01F38/10—Ballasts, e.g. for discharge lamps
-
- 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
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
- H01F27/326—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures specifically adapted for discharge lamp ballasts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F3/00—Cores, Yokes, or armatures
- H01F3/10—Composite arrangements of magnetic circuits
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Inverter Devices (AREA)
Abstract
A magnetic body iron core (4) is composed of two I-shaped iron cores (41, 42) and an E-shaped iron core (43), which comprises: a first iron core part (44), penetrating a primary coil (1); a second iron core part (45), penetrating a first secondary coil (2); a third iron core part (46), penetrating a second secondary coil (3); and an end side connecting iron core part (47), connected to the end part of one end side of the first to the third iron core parts (44-46). The two I-shaped iron cores (41, 42) are configurated in a way that one end part (41a, 42a) clamps an axis (C1) and is opposite over a preset interval, and contracts with one end part of the first iron core part (44), to separate two magnetic circuits (M1, M2). Accordingly, two straight tubes are driven through in-phase lighting, and an inverter transformer in two-to-one horizontal shape having a miniature structure smaller than the setting area of a substrate is provided.
Description
Technical field
The present invention relates to a kind of in being used in DC/AC (AC/DC) inverter circuit that discharges/light a lamp with cold cathode discharge tube (CCFL) backlight of the various display floaters of mobile computer or LCD TV etc. for example employed inverter transformer (inverter transformer).
Background technology
Known in the past have a kind of inverter transformer (hereinafter referred to as " two pairs one horizontally-arranged types (two-in-onerow type) "), for two secondary coils are given electromagnetic coupled to a primary winding, the mode of being arranged under state parallel to each other with the axis of each coil disposes the 1st secondary coil, primary winding and the 2nd secondary coil successively and constitutes.(annotate: the core of transformer is commonly referred to as iron core, and this paper promptly is called iron core)
For example open and recorded a kind of inverter transformer in the 2005-39050 communique the Japan Patent spy, be in toward each other to the middle foot coiling primary winding of two E cores of configuration, and foot's the 1st and the 2nd secondary coil of reeling respectively constitute outside each of each E core both sides.
Open in the inverter transformer that the 2005-39050 communique put down in writing above-mentioned Japan Patent spy, though utilize two E cores to form by the 1st magnetic circuit in primary winding and each coil of the 1st secondary coil and by the 2nd magnetic circuit in primary winding and each coil of the 2nd secondary coil, the part of the 1st and the 2nd magnetic circuit all is formed in the middle foot of two E cores.So, the iron core component (core member) that forms two magnetic circuits is given local sharing, for substrate advantage such as area is set and the miniaturization that can seek transformer integral body is arranged and can reduce.
Yet, when as the above-mentioned iron core component that will form each magnetic circuit give when local shared, can produce and be difficult to two magnetic circuits separated from one anotherly, and cause two secondary coils electro permanent magnetic coupling problems each other.Therefore, the inverter transformer of this pattern was used in specially and will drives a U font pipe or similar U font pipe to light a lamp from each voltage output of two secondary coils will be inverting each other in the past, drove two straight tubes and be difficult to be used in light a lamp with homophase.
Drive two straight tubes in order to light a lamp with homophase, need constitute respectively in order to the iron core component that forms each magnetic circuit to separate two magnetic circuits fully, perhaps adopt the Japan Patent spy to open the current balance transformer that the 2006-287177 communique is put down in writing, no matter yet adopt above-mentioned which kind of method, all can produce the constituent part number increases and causes maximizing, and increases the problem that area etc. is set for substrate.
Summary of the invention
The present invention grinds wound in view of above-mentioned problem, and its objective is provides a kind of can homophase lighting a lamp to drive two straight tubes, and has the inverter transformer for two couples, the one horizontally-arranged type of the structure that the little miniaturization of area is set of substrate.
Inverter transformer of the present invention disposes the 1st secondary coil, primary winding and the 2nd secondary coil successively in the mode of being arranged under the axis of each coil state parallel to each other, and dispose the magnetic core part, described magnetic core part is used to form by the 1st magnetic circuit in described primary winding and described each coil of the 1st secondary coil and by the 2nd magnetic circuit in described primary winding and described each coil of the 2nd secondary coil; Described magnetic core part possesses and has: the 1st core part is configured on the axis of this primary winding in the mode in described primary winding; The 2nd core part is configured on the axis of the 1st secondary coil in the mode in described the 1st secondary coil; The 3rd core part is configured on the axis of the 2nd secondary coil in the mode in described the 2nd secondary coil; One distolateral binding core part links a distolateral end of described the 1st, the 2nd and the 3rd core part; And another distolateral binding core part, link another distolateral end of described the 1st, the 2nd and the 3rd core part; At least one side of described one distolateral binding core part and described another distolateral binding core part is made of two iron core components; These two iron core components with a square end portion of this iron core component respectively clip described primary winding axis and across predetermined space toward each other to and all contact to the mode of a square end portion of described the 1st core part dispose.
Described magnetic core part preferably constitutes, and as a comparison during face, the sectional area of described the 1st core part is all gone back greatly than the sectional area of respectively this core part of the described the 2nd and the 3rd core part perpendicular to the section of described each axis.
Described magnetic core part preferably is made of two I sections hearts and an E core of constituting described two iron core components.
(invention effect)
In inverter transformer of the present invention, utilize the part of the 1st core part, the 2nd core part, a distolateral binding core part and the part of another distolateral binding core part to form the 1st magnetic circuit, utilize another part of the 1st core part, the 3rd core part, a distolateral binding core part and another part of another distolateral binding core part to form the 2nd magnetic circuit.
Though the 1st is formed in the 1st core part with the 2nd a magnetic circuit part separately, but at least one side of a distolateral binding core part and another distolateral binding core part is made of two iron core components, these two iron core components be with a square end portion of this iron core component respectively clip the 1st core part axis and across predetermined space toward each other to and all contact to the mode of a square end portion of the 1st core part and dispose, prevent the electro permanent magnetic coupling each other of the 1st and the 2nd secondary coil thus, and can separate the 1st and the 2nd magnetic circuit well.Therefore, can homophase light a lamp and drive two straight tubes that are connected to the 1st and the 2nd secondary coil.
In addition, owing to be not fully to separate setting with the iron core component of the 2nd magnetic circuit with forming the 1st, but share the 1st core part, and can dwindle the magnetic core part thus, therefore can be with the whole structure that the little miniaturization of area is set that is paired in substrate of inverter transformer.
Description of drawings
Fig. 1 is a kind of vertical view of inverter transformer of execution mode.
Fig. 2 is the front view of inverter transformer shown in Figure 1.
Fig. 3 is the stereogram (coil is not installed) of Fig. 1 and inverter transformer shown in Figure 2.
Fig. 4 is the vertical view of Fig. 1 to magnetic core part shown in Figure 3.
Fig. 5 is the A-A line profile of magnetic core part shown in Figure 4.
[primary clustering symbol description]
1 primary winding
2 the 1st secondary coils
3 the 2nd secondary coils
4 magnetic core part
5 first siding ring frame terminal boards
6 the 1st second siding ring frame terminal boards
7 the 2nd second siding ring frame terminal boards
41, the 42 I sections hearts
41a, 42a (the I sections heart) square end portion
41b, 42b (the I sections heart) the opposing party end
43 E cores
44 the 1st core part
45 the 2nd core part
46 the 3rd core part
47 1 distolateral binding core part
48 another distolateral binding core part
51A, 51B, 61A, 61B, 71A, 71B end edge portion
52 primary side coiling portions
53 primary side terminal maintaining parts
54A, 54B primary side terminal
62,72 secondary side coiling portions
63,73 secondary side terminal maintaining parts
64A, 64B, 64C secondary side terminal
66A to 66F, 76A to 76F separate embolium
67,77 notch parts
M
1The 1st magnetic circuit
M
2The 2nd magnetic circuit
C
1To C
3Axis
Embodiment
Below, the execution mode of the inverter transformer that present invention will be described in detail with reference to the accompanying.
Fig. 1 is the vertical view of the inverter transformer of one embodiment of the present invention; Fig. 2 is the front view of inverter transformer; Fig. 3 is the stereogram (state when showing the non-winding line circle) of inverter transformer.Fig. 4 is the vertical view of magnetic core part; Fig. 5 is the profile (along the profile of the A-A line of Fig. 4) of magnetic core part.
The inverter transformer of present embodiment be a kind of in being used in the DC/AC inverter circuit that discharges/light a lamp with cold cathode discharge tube (CCFL) backlight of the various display floaters of mobile computer or LCD TV etc. for example employed inverter transformer, as shown in Figure 1, inverter transformer possesses has: primary winding 1; The 1st secondary coil 2 and the 2nd secondary coil 3 are separately with described primary winding 1 coupling; Magnetic core part 4 is made of the magnetic material of magnetic oxide (ferrite), Alperm (permalloy) or sendust (sendust) etc.; First siding ring frame terminal board 5, reeling keeps primary winding 1; The 1st second siding ring frame terminal board 6, reeling keeps the 1st secondary coil 2; And the 2nd second siding ring frame terminal board 7, reeling keeps the 2nd secondary coil 3.In addition, in Fig. 1, omit the part diagram of primary winding the 1, the 1st secondary coil 2 and the 2nd secondary coil 3.
In addition, this inverter transformer is with the axis C of this coil respectively with the 1st secondary coil 2, primary winding 1 and the 2nd secondary coil 3
2, C
1, C
3Under the state that state parallel to each other is arranged, the left side disposes and the inverter transformer of two couples, the one horizontally-arranged type that constitutes successively from figure, and magnetic core part 4 is to form by the 1st magnetic circuit M in primary winding 1 and the 1st secondary coil 2 each coil
1, and by the 2nd interior magnetic circuit M of primary winding 1 and the 2nd secondary coil 3 each coil
2Mode constitute (details of magnetic core part 4 will in hereinafter describe in detail).
Described first siding ring frame terminal board 5 possesses and following member is arranged and constitutes: the primary side coiling portion 52 of hollow has end edge portion 51A, 51B at both ends; Primary side terminal maintaining part 53, integrally formed with described primary side coiling portion 52; And primary side terminal 54A, 54B, kept by described primary side terminal maintaining part 53.In addition, described primary winding 1 is wound in described primary side coiling portion 52, and the both ends of first siding ring 1 are connected to described primary side terminal 54A, 54B respectively.
Described the 1st second siding ring frame terminal board 6 possesses and following member is arranged and constitutes: the secondary side coiling portion 62 of hollow has end edge portion (end flange) 61A, 61B at both ends; Secondary side terminal maintaining part 63, integrally formed with described secondary side coiling portion 62; And secondary side terminal 64A, 64B, 64C, kept by described secondary side terminal maintaining part 63.Described secondary side coiling portion 62 utilizes described end edge portion 61A, 61B and multi-disc (being six in the present embodiment) to separate embolium 66A to 66F and is divided into a plurality of (being seven in the present embodiment) winding area, and described the 1st secondary coil 2 of reeling in each winding area.In addition, form notch part 67 (clipped symbol) at the described embolium 66A to 66F that separates, this notch part 67 is in order to striding the winding area of being located at adjacency with described the 1st secondary coil 2, and the both ends that are wound in the 1st secondary coil 2 of described secondary side coiling portion 62 are connected to any two secondary side terminals among described secondary side terminal 64A, 64B, the 64C respectively.
Described the 2nd second siding ring frame terminal board 7 is identical with described the 1st second siding ring frame terminal board 6, and possessing has following member and constitute: the secondary side coiling portion 72 of hollow has end edge portion 71A, 71B at both ends; Secondary side terminal maintaining part 73, integrally formed with described secondary side coiling portion 72; And secondary side terminal 74A, 74B, 74C, kept by described secondary side terminal maintaining part 73.Described secondary side coiling portion 72 utilizes described end edge portion 71A, 71B and multi-disc (being six in the present embodiment) to separate embolium 76A to 76F and is divided into a plurality of (being seven in the present embodiment) winding area, and described the 2nd secondary coil 3 of reeling in each winding area.In addition, form notch part 77 (clipped symbol) at the described embolium 76A to 76F that separates, this notch part 77 is in order to striding the winding area of being located at adjacency with described the 2nd secondary coil 3, and the both ends that are wound in the 2nd secondary coil 3 of described secondary side coiling portion 72 are any two secondary side terminals that are connected to respectively among described secondary side terminal 74A, 74B, the 74C.
On the 2nd second siding ring frame terminal board 7 with below four location of each self-forming of each edge part with recess 78 (staggering a little each other with following position above as shown in Figure 3).Similarly, first siding ring frame terminal board 5 and the 1st second siding ring frame terminal board 6 respectively this above terminal board and below also be formed with four location separately with recesses 58 and 68.These recesses 58,68,78 form in the mode that becomes 5 to 7 o'clock positioning index of each bobbin estrade platform of combination with one another.
As shown in Figure 4, described magnetic core part 4 is made of 41,42 and E cores 43 of two I sections hearts.
Described E core 43 is integrally formed by following member: the 1st core part 44 (middle foot), and to be disposed at the axis C of described primary winding through described primary winding 1 interior mode
1On; The 2nd core part 45 (the 1st outer foot) is to be disposed at the axis C of described the 1st secondary coil 2 through described the 1st secondary coil 2 interior modes
2On; The 3rd core part 46 (the 2nd outer foot) is to be disposed at the axis C of described the 2nd secondary coil 3 through described the 2nd secondary coil 3 interior modes
3On; And a distolateral binding core part 47 (base portion), link these the 1st, the 2nd and the 3rd core part 44,45,46 one distolateral (downside among the figure) the end each other.
In addition, this E core 43 constitutes, (each axis C in perpendicular to Fig. 1 relatively along each section of A-A line shown in Figure 4 the time
1, C
2, C
3Each section in the face), as shown in Figure 5, the sectional area of the 1st core part 44 than the 2nd core part 45 and the 3rd core part 46 respectively the sectional area of this core part all go back greatly (being about twice in the present embodiment).
On the other hand, as shown in Figure 4, end another distolateral binding core part 48 each other that described two I sections hearts 41,42 constitute in order to link described the 1st, the 2nd and the 3rd core part another distolateral (upside of Fig. 4), respectively a 41a of square end portion, the 42a of this core part are to clip the axis C of primary winding 1
1(with reference to Fig. 1) and across predetermined space (for example 0.5mm to 1.5mm) toward each other to and the mode that all contacts a square end portion (end of upside among the figure) of the 1st core part 44 dispose (in the present embodiment, for the contact area of each I sections heart of the 1st core part 44 for equating), and other end end 41b, the 42b of each I sections heart dispose in the mode that contacts the 2nd and the 3rd core part 45,46 a square end portion (end of upside among the figure) separately respectively.
According to the inverter transformer of present embodiment, as mentioned above since in order to two I sections hearts 41,42 41a of square end portion, 42a separately of constituting another distolateral binding core part 48 to clip the axis C of primary winding 1
1And across predetermined space relatively to and the mode that all contacts a square end portion of the 1st core part 44 constitute, therefore can prevent the coupling of the 1st and the 2nd secondary coil 2,3 electro permanent magnetic, and separate the 1st and the 2nd magnetic circuit M well
1, M
2Therefore, can respectively straight tube be connected in the 1st and the 2nd secondary coil 2,3, and light a lamp with homophase and to drive these two straight tubes.
In addition, because magnetic core part 4 is made of 41,42 and E cores 43 of two I sections hearts, and the 1st core part 44 of E core 43 is with as in order to form the 1st and the 2nd magnetic circuit M
1, M
2Iron core component and shared mode constitutes, so can globality ground dwindle magnetic core part 4, so inverter transformer integral body can be paired in the formation that the little miniaturization of area is set of substrate.
And, because the sectional area of the 1st core part 44 is to constitute in the mode of all going back greatly (approximately twice) than the 2nd core part 45 and the 3rd core part 46 sectional area separately, therefore can not limit each magnetic flux that the 1st and the 2nd secondary coil 2,3 is produced, and can pass through the 1st core part 44.
Below explanation gives the action effect of the inverter transformer of the action effect of the inverter transformer of above-mentioned execution mode and alternate manner the result of comparatively validate.Under tabulate and 1 show this comparatively validate result with table 2.
In table 1 and table 2, embodiment is the formation identical with the inverter transformer of above-mentioned execution mode, and comparative example is that another distolateral binding core part is formed by an I type heart and constitutes in the inverter transformer of above-mentioned execution mode.
In addition, the Ns1 ' in the table 1 is the leakage inductance value of the state that is illustrated in the 2nd secondary coil short circuit the 1st secondary coil of (driving frequency is 1KHz) when down driving inverter transformer, and K represents the 1st secondary coil and the coupled systemes numerical value of the 2nd secondary coil this moment.
Similarly, the Ns2 ' in the table 2 is the leakage inductance value of the state that is illustrated in the 1st secondary coil short circuit the 2nd secondary coil of (driving frequency is 1KHz) when down driving inverter transformer, and K is the coupled systemes numerical value of expression the 1st secondary coil this moment and the 2nd secondary coil.
[table 1]
| Ns1′(μH) | K | |
| Embodiment | 26.9 | 0.000 |
| Comparative example | 30.2 | 0.026 |
[table 2]
| Ns2′(μH) | K | |
| Embodiment | 22.6 | 0.000 |
| Comparative example | 22.5 | 0.026 |
Shown in above-mentioned table 1 and table 2, in the inverter transformer of comparative example, the coupled systemes numerical value of the 1st secondary coil and the 2nd secondary coil is 0.026, and in the inverter transformer of embodiment, the coupled systemes numerical value of the 1st secondary coil and the 2nd secondary coil is 0.000.Therefore, according to the inverter transformer of embodiment, can roughly fully separate two magnetic circuits.
More than, though the execution mode of bright inverter transformer of the present invention, the present invention is not defined in above-mentioned execution mode, and can constitute the inverter transformer of various forms.
For example, in the above-described embodiment, though magnetic core part 4 is made of 41,42 and E cores 43 of two I sections hearts, but also can utilize following member to constitute this magnetic core part 4:T sections heart (not shown), it is integrally formed with above-mentioned one distolateral binding core part 47 to be above-mentioned the 1st core part 44; The 1L sections heart (not shown) is that the above-mentioned I sections heart 41 is integrally formed with above-mentioned the 2nd core part 45; And the 2L sections heart (not shown), be that the above-mentioned I sections heart 42 is integrally formed with above-mentioned the 3rd core part 46.
In addition, can also constitute above-mentioned one distolateral binding core part 47 by two iron core components in the same manner with the I sections heart 41,42.
Claims (8)
1. inverter transformer, the 1st secondary coil, primary winding and the 2nd secondary coil are disposed successively in the mode of being arranged under the axis of each coil state parallel to each other, and dispose the magnetic core part, described magnetic core part is used to form by the 1st magnetic circuit in described primary winding and described each coil of the 1st secondary coil and by the 2nd magnetic circuit in described primary winding and described each coil of the 2nd secondary coil;
Described magnetic core part possesses and has:
The 1st core part is configured on the axis of this primary winding in the mode in described primary winding;
The 2nd core part is configured on the axis of the 1st secondary coil in the mode in described the 1st secondary coil;
The 3rd core part is configured on the axis of the 2nd secondary coil in the mode in described the 2nd secondary coil;
One distolateral binding core part links a distolateral end of described the 1st, the 2nd and the 3rd core part; And
Another distolateral binding core part links another distolateral end of described the 1st, the 2nd and the 3rd core part;
At least one side of described one distolateral binding core part and described another distolateral binding core part is made of two iron core components;
These two iron core components with a square end portion of this iron core component respectively clip described primary winding axis and across predetermined space toward each other to and all contact to the mode of a square end portion of described the 1st core part dispose.
2. inverter transformer according to claim 1, wherein, in the described magnetic core part, as a comparison during face, the sectional area of described the 1st core part is greater than each sectional area of the described the 2nd and the 3rd core part perpendicular to the section of described each axis.
3. inverter transformer according to claim 1, wherein, described magnetic core part is made of two I sections hearts and an E core of constituting described two iron core components.
4. inverter transformer according to claim 3, wherein, a described E core constitutes after forming one by described the 1st, the 2nd and the 3rd core part and described one distolateral binding core part.
5. inverter transformer according to claim 1 wherein, also possesses:
First siding ring frame terminal board, reeling keeps described primary winding;
The 1st second siding ring frame terminal board, reeling keeps described the 1st secondary coil; And
The 2nd second siding ring frame terminal board, reeling keeps described the 2nd secondary coil.
6. inverter transformer according to claim 5, wherein, described first siding ring frame terminal board possesses and following member is arranged and constitutes:
The primary side coiling portion of hollow has end edge portion at both ends;
Primary side terminal maintaining part, integrally formed with described primary side coiling portion; And
The primary side terminal is kept by described primary side terminal maintaining part.
7. inverter transformer according to claim 5, wherein, the described the 1st and the 2nd secondary coil frame terminal board possesses and following member is arranged and constitutes:
The secondary side coiling portion of hollow has end edge portion at both ends;
Secondary side terminal maintaining part, integrally formed with described secondary side coiling portion; And
The secondary side terminal is kept by described secondary side terminal maintaining part.
8. inverter transformer according to claim 5, wherein, when being formed with when these bobbin terminal boards of combination with one another respectively, described first siding ring frame terminal board, described the 1st second siding ring frame terminal board and described the 2nd second siding ring frame terminal board can become the location recess of positioning index.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007185581A JP5052233B2 (en) | 2007-07-17 | 2007-07-17 | Inverter transformer |
| JP2007185581 | 2007-07-17 | ||
| JP2007-185581 | 2007-07-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101388276A true CN101388276A (en) | 2009-03-18 |
| CN101388276B CN101388276B (en) | 2012-05-16 |
Family
ID=40398373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101360973A Expired - Fee Related CN101388276B (en) | 2007-07-17 | 2008-07-15 | Inverter transformer |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP5052233B2 (en) |
| KR (1) | KR101081810B1 (en) |
| CN (1) | CN101388276B (en) |
| TW (1) | TWI369700B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103515047A (en) * | 2012-06-29 | 2014-01-15 | 三星电机株式会社 | Coil component, mounting structure thereof, and electronic device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101372124B1 (en) * | 2012-05-07 | 2014-03-07 | 엘지이노텍 주식회사 | Transformer with PFC |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57139911A (en) * | 1981-02-23 | 1982-08-30 | Top Denshi Kk | Oscillation transformer for high frequency fluorescent lamp |
| JPH0344908A (en) * | 1989-07-13 | 1991-02-26 | Kijima:Kk | High voltage output small-sized transformer |
| JPH0950931A (en) * | 1995-08-04 | 1997-02-18 | Hitachi Metals Ltd | Ferrite core |
| JP2002222722A (en) * | 2001-01-29 | 2002-08-09 | Fukushima Denki Seisakusho:Kk | Ballast iron core and ballast |
| WO2004109722A1 (en) * | 2003-06-09 | 2004-12-16 | Minebea Co.,Ltd. | Inverter trasformer |
| JP4446473B2 (en) * | 2003-07-16 | 2010-04-07 | 株式会社日本自動車部品総合研究所 | DC-DC converter |
| JP2006032660A (en) * | 2004-07-16 | 2006-02-02 | Matsushita Electric Ind Co Ltd | Coil component |
| JP4693037B2 (en) | 2005-05-12 | 2011-06-01 | Ｆｄｋ株式会社 | Current balance transformer |
| JP4840071B2 (en) * | 2006-10-16 | 2011-12-21 | 株式会社豊田自動織機 | DC-DC converter |
-
2007
- 2007-07-17 JP JP2007185581A patent/JP5052233B2/en not_active Expired - Fee Related
-
2008
- 2008-07-15 KR KR1020080068407A patent/KR101081810B1/en active IP Right Grant
- 2008-07-15 CN CN2008101360973A patent/CN101388276B/en not_active Expired - Fee Related
- 2008-07-16 TW TW097126893A patent/TWI369700B/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103515047A (en) * | 2012-06-29 | 2014-01-15 | 三星电机株式会社 | Coil component, mounting structure thereof, and electronic device |
Also Published As
| Publication number | Publication date |
|---|---|
| TW200905702A (en) | 2009-02-01 |
| KR20090008135A (en) | 2009-01-21 |
| JP5052233B2 (en) | 2012-10-17 |
| JP2009026799A (en) | 2009-02-05 |
| CN101388276B (en) | 2012-05-16 |
| KR101081810B1 (en) | 2011-11-09 |
| TWI369700B (en) | 2012-08-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101090036B (en) | Balance transformer | |
| EP1933340B1 (en) | Coil device, composite coil device and transformer device | |
| US7528694B2 (en) | Transformer and core set thereof | |
| EP1672649B1 (en) | High-voltage transformer | |
| CN101128893A (en) | Inverter transformer | |
| JP2005311227A (en) | High-voltage transformer | |
| JP2008205109A (en) | Inverter transformer | |
| JP4547703B2 (en) | High voltage transformer | |
| JP2004214488A (en) | Inverter transformer | |
| KR100724139B1 (en) | Inverter transformer | |
| US20090066459A1 (en) | Transformer Structure | |
| CN101388276B (en) | Inverter transformer | |
| KR20060136016A (en) | Inverter transformer | |
| KR200386286Y1 (en) | High-voltage Transformer | |
| JP2005310980A (en) | Inductor and transformer | |
| JP2001126937A (en) | Inverter transformer and discharge lamp lighting circuit | |
| JP2008004780A (en) | Transformer | |
| WO2006054452A1 (en) | High-tension transformer | |
| KR100808071B1 (en) | Multi output type high voltage transformer | |
| KR100563185B1 (en) | Trans | |
| JP2004111417A (en) | Transformer for inverter | |
| JPH10223459A (en) | High-voltage transformer | |
| JP2002367835A (en) | Inverter transformer | |
| KR200341423Y1 (en) | Trans | |
| KR20050022362A (en) | Low profile transformer and method of manufacturing the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120516 Termination date: 20200715 |