Coupling transformer

A technology of coupling transformers and coils, applied in the field of coupling transformers, can solve the problems of large size, inappropriate product miniaturization, and inability to use high-frequency transformers, etc., and achieves the effects of small size, simple structure, and reduced interference.

Inactive Publication Date: 2010-11-10
GUIZHOU SPACE APPLIANCE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current frequency of transformers is generally 50Hz, and their materials are generally metal materials, which cannot be used for high-frequency transformers.
And adopt the common transformer structure, the volume is often relatively large, not suitable for the miniaturization of the product

Method used

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Embodiment Construction

[0018] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0019] Such as figure 1 As shown, the coupling transformer 4 of the present invention is composed of an insulating sheath 1, a coil 2 and a magnetic ring 3. The coil 2 includes a primary coil 9 and a secondary coil 10. The material of the magnetic ring 3 is manganese zinc ferrite, and its size specification It is T6×3×3 (that is, the outer diameter of the magnetic ring is 6mm, the inner diameter is 3mm, and the height is 3mm). The coil 2 is formed by winding the primary coil 9 and the secondary coil 10 in parallel, and the two sets of coils are alternately wound and evenly distributed on the 3 circles of the magnetic ring, and the initial

[0020] The taps of the primary and secondary coils are distributed on the same side, the diameter of the coil enameled wire is 0.10mm, the turns ratio of the primary and secondary coils is 1:1.41±3%, and the resistance is less tha...

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Abstract

The invention discloses a coupling transformer, which consists of an insulating sheath, coils and a magnetic ring, wherein the magnetic ring is made of manganese zinc ferrite; the coils are formed by winding two groups of enameled wire coils, namely a primary coil and a secondary coil in parallel, and are uniformly distributed on the periphery of the magnetic ring; and the insulating sheath is sleeved outside the magnetic ring and the coils. The coupling transformer has a simple and reliable structure and a small volume, both input signals and output signals are 1MHz pulse signals, the rise and fall times of the signals are 300ns, and the coupling transformer improves the coupling capability between the coils, reduces the loss and is used for coupling 1553B buses.

Description

technical field [0001] The invention relates to a coupling transformer, which is suitable for 1553B bus transmission. Background technique [0002] In the bus communication (transmission) link, in order to realize the flexible connection between different modules, devices and systems, there must be a device capable of bus expansion and transmission, in order to achieve and complete the predetermined or expected purpose and requirements, and can The device that realizes this function is called a bus coupler. The bus coupler is divided into two types: direct coupling and transformer coupling. Since the sub-line extension distance of direct coupling is relatively short, and there is mutual interference between the sub-lines, it is not common in the actual bus expansion application. Currently, the coupler is widely used A bus coupler for transformer coupling. However, the operating frequency of transformers is generally 50Hz at present, and their materials are generally metal ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/24H01F1/34H01F27/28
Inventor 黄浩
Owner GUIZHOU SPACE APPLIANCE CO LTD
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