Audio transformer

Abstract

The invention relates to the technical field of audio transformers, and discloses an audio transformer which comprises a U-shaped plate, wherein sliding grooves are formed in the left side and the right side of the interior of the U-shaped plate, limiting strips which are evenly distributed are slidably connected to the inner sides of the two sliding grooves, iron cores which are evenly distributed are arranged on the inner side of the U-shaped plate, the two ends of the iron core are fixedly connected with the limiting strips, and a copper wire is connected to the iron core in a wound mode. According to the invention, a primary coil is divided into a plurality of sections of average structures, secondary coils composed of copper wires, iron cores and limiting strips are divided into a plurality of groups and embedded into the primary coil, and the high-frequency surface transmission capability is improved through a high-frequency skin effect of an electronic circuit, that is, the higher the frequency is, the more concentrated the current is on the surface , so that the coupling capability of an output coil is improved, a multi-group parallel connection mode is adopted after output, the number of turns of windings at the input end of the transformer is increased, the inductance value of the input end is increased, and the low-frequency output extension range is improved.

Description

technical field [0001] The invention relates to the technical field of audio transformers, in particular to an audio transformer. Background technique [0002] The sound system is a kind of audio-visual equipment that restores the scene. In the existing sound system, the power amplifier is the most important link in the whole system. It provides power output for the whole system and drives the speaker to produce beautiful sound. Amplifiers are roughly divided into two categories, transistor power amplifiers and tube power amplifiers. Among them, the tube power amplifier has the most beautiful sound. [0003] Inside the electronic tube power amplifier equipment, the electronic tube (vacuum tube) will be used as the power amplifier output. In the circuit, the electronic tube (vacuum tube) is a high-impedance electronic device and cannot directly drive the speaker. Impedance conversion to low impedance, while working in the frequency range that can be heard by the human ear (...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies in the prior art, the present invention provides an audio transformer, which has the advantages of improving the extension range of low-frequency output and facilitating adjustment, and solves the problem that traditional electronic transformers all work at 50Hz or 60Hz (single frequency). It cannot meet the technical requirements of this line, and the specifications are fixed, it is inconvenient to adjust, and the problem of poor practicability

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