Patent ID: 9100019
Filing Date: 2015-08-04
Classification: H01L,H02M,H03K

Abstract:
1. A power conversion device comprising: a first transistor switch inserted between a first power supply voltage and an output node; a second transistor switch inserted between a second power supply voltage higher than the first power supply voltage and the output node; and a first driver circuit for controlling turning ON/OFF of the first transistor switch, and, when the first transistor switch is controlled to be turned OFF, the first driver circuit applying a first voltage between a gate and a source of the first transistor switch, and, when the second transistor switch is shifted from the turning OFF to the turning ON at a first timing in a state that the first voltage is applied, the first driver circuit applying a second voltage lower than the first voltage between the gate and the source of the first transistor switch during a first period which crosses over the first timing, and the first driver circuit returning to apply the first voltage after passing the first period.