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Characteristics, Applications, and Selection of Linear Transformers

Article Source：Kinri Energy | Author：Kinri Energy | Issuing Time：2024.05.25
A linear transformer is an electronic component that operates based on the law of electromagnetic induction and the characteristics of magnetic materials. It consists of primary and secondary coils as well as an iron core, which changes the voltage or current in the secondary coil by changing the current in the primary coil. Linear transformers play a role in voltage conversion, current conversion, impedance conversion, and phase conversion in circuits, and are widely used in audio equipment, communication equipment, measurement instruments, and other fields.


linear transformer

The main characteristics of linear transformers include:

1. High efficiency: Linear transformers do not generate additional power consumption and noise when converting voltage or current like switching power supplies, so their efficiency is very high, usually reaching over 90%.

2. Pure output voltage: Due to the lack of switching action during operation, linear transformers do not generate additional harmonic components, resulting in very pure output voltage or current.
3. Good shielding effect: Linear transformers usually have good shielding effect, which can effectively prevent the influence of external electromagnetic interference on internal circuits.

4. Small size and light weight: With the development of technology, the volume and weight of modern linear transformers are becoming smaller and smaller, making it convenient for equipment integration and portability.

5. High reliability: Due to the simple working principle and stable structure of linear transformers, their reliability is very high and their service life is long.

In audio equipment, the function of a linear transformer is to appropriately increase or decrease the voltage of the audio signal to meet the requirements of the subsequent circuit. Due to the high demand for signal quality in audio signals, linear transformers are widely used in the audio field. In addition, in linear power sources, linear transformers also play an important role in converting high-voltage AC power into low-voltage DC power, providing stable power supply for equipment.

In addition to its applications in audio equipment and power supply, linear transformers are also widely used in fields such as communication equipment and measuring instruments. For example, in communication equipment, linear transformers can play an impedance matching role, improving the quality and efficiency of signal transmission. Under the action of a linear transformer, measuring instruments can obtain more accurate and reliable measurement results.

Choosing a suitable linear transformer is crucial for achieving better performance. Firstly, it is necessary to select appropriate models and specifications based on actual needs to ensure that they can meet the requirements of the circuit. Secondly, it is necessary to pay attention to the quality and reliability of linear transformers, and choose brands and manufacturers with quality assurance. Finally, attention should be paid to maintenance and upkeep during use to ensure its long-term stable working condition.

In summary, linear transformers, as an important electronic component, have been widely used in various fields. Its high efficiency, pure output voltage, good shielding effect, small size, light weight, and high reliability make it an indispensable part in many fields.
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