What does the combination of a rectifier and a transformer produce in electrotherapy equipment?

The combination of a rectifier and a transformer in electrotherapy equipment produces direct current. A transformer is responsible for stepping up or stepping down the voltage to the necessary level for the treatment, while a rectifier converts alternating current (AC) into direct current (DC).

In electrotherapy, direct current is essential for various treatments, as it allows for a steady flow of electricity in one direction, which is useful for functions such as iontophoresis, galvanic treatments, and certain therapeutic modalities. The stabilization of the current output provided by the rectifier is essential for the effectiveness and safety of the treatment applications. Thus, the combination of these two components effectively provides a controlled and consistent source of direct current for therapeutic use.