Improving the Emitter Turn-Off Thyristor for Parallel Operation

A new series of ETO device is proposed to improve the device parallel operation performance. The main concept of this device is to decouple the storage time dependency from the load current. By increasing the dynamic voltage pulse during the gate current commutation phase, the gate commutation time is significant reduced, thus reducing the dependency on the load current, and improving the device parallel operation performance. Hence, a better dynamic current sharing can be obtained regardless of the static current sharing.