Salt bath furnaces, industrial frequency induction furnaces, quenching furnaces, and molten glass temperature heating control.

Rectifier transformers, power regulators (pure inductive coils), electric furnace transformer primary side, magnetic field boost/demagnetization adjustment, DC motor control.

Voltage, current, power, lighting (High-pressure sodium lamp control must be matched with a stable voltage function and a PID control board) are all adjustable with smooth, infinite regulation.

Single-phase, three-phase welding machine control, electrolytic plating control, etc.