



A Gate Turn-off Thyristor (GTO) is a type of thyristor, a semiconductor device used for controlling electric power and current. GTOs are similar to conventional thyristors (also known as Silicon Controlled Rectifiers or SCRs) in their basic structure and operation but offer an important advantage: they can be turned off using a negative gate signal.
GTOs have three terminals: anode, cathode, and gate. The anode and cathode are the main terminals that carry the primary current, while the gate terminal controls the device’s switching behavior.
Applying a positive gate signal turns the GTO on, allowing current to flow from anode to cathode. Applying a negative gate signal turns the GTO off, stopping the current flow.
High Power Gate Turn-off Thyristor
Medium Power Gate Turn-off Thyristor
Low Power Gate Turn-off Thyristor
High Voltage Direct Current (HVDC) Transmission
Flexible Alternating Current Transmission Systems (FACTS)
Motor Drives
Wind Power Converters
Traction
Induction Heating
Power Supplies
Others