The Difference Between Constant Voltage Transformer And Ordinary Transformer

The difference between Constant Voltage Transformer(CVT) and ordinary transformers is mainly reflected in the principle, application range, advantages and disadvantages.

Principle:

An ordinary transformer is a device that can increase or decrease the AC voltage in proportion. It achieves the target power by adjusting the ratio of input voltage to output voltage.

The constant voltage transformer adds a feedback loop and a voltage stabilization circuit on the basis of the ordinary transformer, which can automatically adjust the output voltage and maintain a constant value within a certain range. This transformer can adjust the output voltage and control its fixed value through user feedback of the transformer winding.

Application range:

Ordinary transformers are often used in power systems, electronic equipment and other fields.
Constant voltage transformers are more suitable for occasions requiring high-precision voltage stabilization, such as instruments and equipment, production processes, etc. For example, pharmaceutical factories need to control the solution in the formula at a constant temperature and constant concentration, which requires a constant voltage transformer to ensure the stability of the voltage.

Advantages and disadvantages:

Ordinary transformers have a simple structure and low cost, but their output voltage has a certain fluctuation range, which is suitable for fields with low requirements for power output accuracy.
The advantages of constant voltage transformers are stable output voltage, low noise, easy maintenance, and long life. Since it uses magnetostrictive effect to adjust the output voltage, the noise is relatively low and will not interfere with the surrounding environment. At the same time, its structure is simple and maintenance is convenient, and daily maintenance and repair can be carried out without affecting normal use. In addition, since there are no moving parts, the life of the constant voltage transformer is also relatively long and it is not easy to fail. ‌2. However, the constant voltage transformer may be more expensive than ordinary transformers. This is the price it pays for higher accuracy and stability (this point is a reasonable guess based on the context, and the original text does not mention it directly).
In summary, there are significant differences between constant voltage transformers and ordinary transformers in principle, application scope, advantages and disadvantages. The choice of which type of transformer should be determined according to the specific application scenario and needs.