The Difference Between Constant Voltage Transformer And Constant Current Transformer

The main differences between Constant Voltage Transformer(CVT) and constant current transformers are their output characteristics, application scenarios, and design and manufacturing differences.

‌Output characteristics‌:

Constant current transformer: When the input voltage remains unchanged, the output current is kept constant by controlling the number of turns of the winding in the transformer. This type of transformer adjusts the self-inductance potential to maintain the stability of the output current when the input voltage changes.

Constant voltage transformer: During operation, the transformer monitors the output voltage and controls the stability of the output voltage through the corresponding control circuit to ensure that the output voltage remains constant.

‌Application scenarios‌:

Constant current transformer: Mainly used in occasions where constant current output is required, such as arc welding, electrochemical processing, electroplating and other industrial applications. In these applications, the stability of current is crucial to processing quality and efficiency.

Constant voltage transformer: It is widely used in industries such as power distribution and communication power supply. These fields require stable power supply voltage to ensure the normal operation of the equipment and the quality of communication.

‌Design and manufacturing differences‌:

Constant current transformer: The design focuses more on controlling current, so its winding structure, control circuit, etc. will be optimized around how to keep the current constant.
Constant voltage transformer: It focuses more on maintaining the stability of the output voltage. Its design will focus on how to monitor and adjust the output voltage to ensure that a stable power supply voltage can be provided under various load conditions. In summary, constant voltage transformers and constant current transformers have obvious differences in output characteristics, application scenarios, design and manufacturing. The choice of which type of transformer depends on the specific application requirements and working environment.