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1. CN101454848 - Layered type balloon transformer

Office China
Application Number 200780018943.5
Application Date 19.04.2007
Publication Number 101454848
Publication Date 10.06.2009
Grant Number 101454848
Grant Date 09.05.2012
Publication Kind B
IPC
H01F 19/06
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
19Fixed transformers or mutual inductances of the signal type
04Transformers or mutual inductances suitable for handling frequencies considerably beyond the audio range
06Broad-band transformers, e.g. suitable for handling frequencies well down into the audio range
H01F 17/00
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
17Fixed inductances of the signal type
H01F 27/29
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
27Details of transformers or inductances, in general
28Coils; Windings; Conductive connections
29Terminals; Tapping arrangements
CPC
H01F 27/2804
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
27Details of transformers or inductances, in general
28Coils; Windings; Conductive connections
2804Printed windings
H03H 7/42
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
7Multiple-port networks comprising only passive electrical elements as network components
42Balance/unbalance networks
Applicants Murata Manufacturing Co.
株式会社村田制作所
Inventors Ishida Kosuke
石田康介
Agents zhang xin
上海专利商标事务所有限公司 31100
Priority Data 153210/2006 01.06.2006 JP
Title
(EN) Layered type balloon transformer
(ZH) 层叠型平衡-不平衡变压器
Abstract
(EN)
A laminated balun transformer that may be applied to the lines having various impedances is provided. The laminated balun transformer includes a magnetic substrate 1, a laminated body 2, a magnetic substrate 3, and external electrodes 4-1 to 4-6. The laminated body 2 includes a first transformer 5, a second transformer 6, and an insulator 7 that covers the first and second transformers 5 and 6 from the outside. The first transformer 5 is formed of a primary coil 5-1 and a secondary coil 5-2. The second transformer 6 is formed of a primary coil 6-1 and a secondary coil 6-2. Then, the line width of the primary coil 5-1 of the first transformer 5 is set so as to decrease from the side of the internal electrode 52a toward the side of the internal electrode 51a. The line width of the secondary coil 6-2 of the second transformer 6 is also set so as to decrease from the side of the internal electrode 62a toward the side of the internal electrode 61a.

(ZH)

本发明提供可适用于具有各种阻抗的线路的层叠型平衡-不平衡变压器。层叠型平衡—不平衡变压器包括:磁性体基板(1)、层叠体(2)、磁性体基板(3)、外部电极(4-1)~(4-6)。层叠体(2)具有:第一变压器(5)、第二变压器(6)、从外侧覆盖第一及第二变压器(5)、(6)的绝缘体(7)。第一变压器(5)由1次侧及2次侧绕组(5-1)、(5-2)构成,第二变压器(6)由1次侧及2次侧绕组(6-1)、(6-2)构成。而且,设定第一变压器(5)的1次侧绕组(5-1)的线宽度使其从内部电极(52a)侧向内部电极(51a)侧减少,设定第二变压器(6)的2次侧绕组(6-2)的线宽度也使其从内部电极(62a)侧向内部电极(61a)侧减少。