KR970005571Y1 - Surface Mount Impedance Matching Transformer - Google Patents
Surface Mount Impedance Matching Transformer Download PDFInfo
- Publication number
- KR970005571Y1 KR970005571Y1 KR2019940013537U KR19940013537U KR970005571Y1 KR 970005571 Y1 KR970005571 Y1 KR 970005571Y1 KR 2019940013537 U KR2019940013537 U KR 2019940013537U KR 19940013537 U KR19940013537 U KR 19940013537U KR 970005571 Y1 KR970005571 Y1 KR 970005571Y1
- Authority
- KR
- South Korea
- Prior art keywords
- primary
- impedance matching
- matching transformer
- surface mount
- lead
- Prior art date
Links
- 229910000859 α-Fe Inorganic materials 0.000 claims description 11
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- 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
- H01F27/2847—Sheets; Strips
-
- 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
- H01F27/2804—Printed windings
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
요약없음No summary
Description
제1도는 선행기술에 의해 제작된 임피던스 정합트랜스를 나타낸 도면1 is a diagram showing an impedance matching transformer manufactured by the prior art.
제2도는 본 고안에 따른 면실장용 임피던스 정합트랜스를 나타낸 도면2 is a diagram showing an impedance matching transformer for a surface mount according to the present invention
*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *
10 : 페라이트코어20 : 평판코일10: ferrite core 20: flat coil
21 : 1차측 리드25 : 공통리드21: Primary lead 25: Common lead
29 : 2차측 리드23 : 1차측 코일29: secondary lead 23: primary coil
27 : 2차측 코일27: secondary coil
본 고안은 면실장용 임피던스 정합트랜스에 관한 것으로서, 보다 상세하게는 인덕터용 펑판코일을 페라이트 코어에 성형시켜 칩(Chip)화 하여 회로기판상에 면실장할 수 있는 임피던스 정합트랜스에 관한 것이다.The present invention relates to an impedance matching transformer for a surface mount, and more particularly, to an impedance matching transformer that can be mounted on a circuit board by chipping an inductor funnel coil into a ferrite core.
선행기술에 의해 제작되어 신호의 흐름을 스위칭하는 임피던스 정합트랜는 제1도에 도시된 바와 같이 원통형 페라이트코어의 길이 방향으로 관통된 통공부(a)(b)를 따라, 1, 2차측 코일(2)(3)을 서로 반대로 권회시킨 후 일측단자를 접지시켜 공통단자(4)로 형성하여 구성되어 있다.Impedance matching transformer fabricated by the prior art to switch the flow of the signal is shown in Figure 1 along the through-hole (a) (b) through the longitudinal direction of the cylindrical ferrite core, the secondary coil 2 (3) is wound to be opposite to each other, and then one terminal is grounded to form a common terminal (4).
이와 같이 구성된 종래의 임피던스 정합트랜스는 1, 2차측 코일(2)(3)을 페라이트코어(1)에 형성된 통공부(a)(b)에 권회시키는 작업이 어려워 공수의 수율이 떠러어지는 결점과, 각 단작간의 간격이 일정하지 않으면 인쇄회로기판에 삽입시 단자가 휘어지므로 자동 실장이 어려운 문제점이 있었다.In the conventional impedance matching transformer configured as described above, it is difficult to wind the primary and secondary coils (2) and (3) to the through-holes (a) and (b) formed in the ferrite core 1, and the yield of the airborne floats. If the spacing between the individual pieces is not constant, automatic mounting is difficult because the terminals are bent when inserted into the printed circuit board.
따라서, 본 고안은 상기와 같은 제반결점을 해소하기 위하여 안출한 것으로서, 본 고안의 목적은 3개의 리드를 갖는 평판코일을 소정형상의 페라이트코어에 실장하여 칩화 함으로서 인쇄호로기판에 면실장할 수 있는 면실장용 임피던스 정합트랜스를 제공하는데 있다.Therefore, the present invention has been devised to solve the above-mentioned shortcomings, and an object of the present invention is to mount a flat coil having three leads on a ferrite core of a predetermined shape and chip the surface into a printed arc board. To provide a surface mount impedance matching transformer.
상기의 목적을 달성하기 위하여 본 고안에 따른 면실장용 임피던스트랜스는, 1, 2차측 리드와 공통리드가 형성된 평판코일을 소정형상을 페라이트코어에 실장하여 구성된 것을 특징으로 한다.In order to achieve the above object, the surface mount impedance transformer according to the present invention is characterized in that a flat coil having a predetermined shape mounted on a ferrite core is formed with a flat coil having a primary lead and a secondary lead.
이하, 예시된 도면을 참조하여 본 고안을 더욱 상세히 설명한다.Hereinafter, the present invention will be described in more detail with reference to the illustrated drawings.
제2도는 본 고안에 따른 면실장용 정합트랜스를 나타낸 도면이다.Figure 2 is a view showing a matching transformer for the surface mount according to the present invention.
동도면에서, 직육면체의 페라이트코어(10)에 실징되는 평판코일(20)은 1, 2차측 리드(21)(29)와 공통리드(25)가 형성되고, 상기 공통리드(25)와 1, 2차측 리드(21)(29)사이에 형성된 1, 2차측 코일(23)(27)은 서로 다른 임피던스 정합트랜스 값을 갖도록 와류나 각 형 또는 원형으로 권회되어 있다.In the same figure, the flat coil 20 mounted on the rectangular parallelepiped ferrite core 10 has primary and secondary leads 21 and 29 and a common lead 25, and the common leads 25 and 1, The primary and secondary coils 23 and 27 formed between the secondary leads 21 and 29 are wound in a vortex, a square, or a circle so as to have different impedance matching transformer values.
그리고, 1, 2차측 리드(21)(29)와 공통리드(25)는 페라이트코어(10) 외부로 돌출되고 절곡된 경사면이 인쇄회로기판과 면접합 되도록 되어 있다.In addition, the primary and secondary leads 21 and 29 and the common lead 25 are protruded to the outside of the ferrite core 10 so that the bent inclined surface is joined to the printed circuit board.
상기한 바와같은 구성을 가진 면실장용 임피던스 정합트랜스는 서로다른 임피던스를 가진 1, 2차측 코일(23)(27)이 형성되고 1, 2차측 리드(21)(29)와 공통리드(25)가 일체화된 평판코일(20)을 페라이트코어(10)에 실장하여 칩(Chip)화 함으로 제조공정이 간단하여 공수의 수율이 향상되고, 정합트랜스의 각 리드가 면접합되도록 절곡되어 있어 인쇄회로기판에 자동으로 면실장할 수 있는 효과가 있다.In the surface mount impedance matching transformer having the configuration as described above, primary and secondary coils 23 and 27 having different impedances are formed, and primary and secondary leads 21 and 29 and common lead 25 are formed. The integrated flat plate coil 20 is mounted on the ferrite core 10 to form a chip, which simplifies the manufacturing process and improves the yield of airborne, and is bent so that each lead of the matching transformer is bonded to the printed circuit board. It has the effect of automatically mounting the face.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019940013537U KR970005571Y1 (en) | 1994-06-10 | 1994-06-10 | Surface Mount Impedance Matching Transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019940013537U KR970005571Y1 (en) | 1994-06-10 | 1994-06-10 | Surface Mount Impedance Matching Transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR960002960U KR960002960U (en) | 1996-01-22 |
| KR970005571Y1 true KR970005571Y1 (en) | 1997-06-07 |
Family
ID=19385372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019940013537U KR970005571Y1 (en) | 1994-06-10 | 1994-06-10 | Surface Mount Impedance Matching Transformer |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR970005571Y1 (en) |
-
1994
- 1994-06-10 KR KR2019940013537U patent/KR970005571Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR960002960U (en) | 1996-01-22 |
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Comment text: Application for Utility Model Registration Patent event code: UA01011R08D Patent event date: 19940610 |
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Patent event code: UG16041S01I Comment text: Decision on Publication of Application Patent event date: 19970515 |
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| UE0701 | Decision of registration |
Patent event date: 19970902 Comment text: Decision to Grant Registration Patent event code: UE07011S01D |
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Patent event date: 19970919 Patent event code: UR07011E01D Comment text: Registration of Establishment |
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