
Electronic Devices for Power Switching 1-11
connect the gate drive to the IGCT. e drive circuit printed circuit board (PCB) is integrated into the
package of the device. e drive circuit surrounds the device and a large circular conductor attaching to
the edge of the IGCT die is used. e large contact area and short distance reduces both the inductance
and resistance of the connection.
e IGCT’s much shorter turn-o times compared with GTO thyristors allows it to operate at higher
frequencies. Up to several kilohertz for very short periods of time are possible. However, because of high
switching losses, typical operating frequencies are up to ...