Audio transformer and audio circuit

Abstract

The invention discloses an audio transformer and an audio circuit, and belongs to the technical field of transformers. The invention solves the technical problems that the conventional audio transformer has large volume and high materials consumption, the leakage magnetic flux is larger to cause poor coupling between windings, and the performance and efficiency of the audio transformer are poor. The audio transformer comprises an R-shape iron core, a structure, a primary coil and a secondary coil, wherein the primary coil and the secondary coil are respectively wound on two opposite arms of the R-shape iron core; and the structure is made of an insulating material, and is positioned between one arm of the two opposite arms of the R-shape iron core and the primary coil and / or between the other arm of the two opposite arms of the R-shape iron core and the secondary coil. The audio transformer is applied to audio circuits.

Description

technical field [0001] The invention belongs to the technical field of transformers, and in particular relates to an audio transformer and an audio circuit provided with the audio transformer. Background technique [0002] Audio transformers are transformers that work in the audio range, and the operating frequency range of audio transformers is generally between 10 and 20,000 Hz. [0003] Audio transformers are often used to transform voltage or transform the impedance of a load. It is used as a component of voltage amplification, power output and other circuits in radio communication, radio and television, and automatic control. The frequency response of the audio transformer is uniform in the working frequency band, the lowest frequency of the passband is determined by the inductance of the primary winding, and the highest frequency is determined by the leakage inductance of the transformer. To ensure that the transformer has sufficient passband, the primary winding ind...

AI Technical Summary

Problems solved by technology

[0014] The embodiment of the present invention provides an audio transformer and an audio circuit equipped with the audio transformer, which solves the problems of the existing audio transformers, which are large in size, consume a lot of materials, and have large leakage magnetic flux, which leads to poor coupling between windings and audio transformers. Technical issues with poor performance and efficiency

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