| abstract |
The trench type power transistor includes a source, a drain, a first gate, a second gate, a body diode, and a body region contact diode, and the body diode and the body region contact diode are connected in series, and the first gate is connected through a gate voltage. Turning on and off of the first current channel is controlled, and the second gate is connected to a source to control turn on and off of the second current channel by the source voltage. |