Patent ID: 9680380
Date: 2017-06-13
CPC Classifications: H02M,H03K

Claim:
1. A semiconductor device used in a power conversion device that includes a first switch element of which a drain is connected to a first power source voltage and a second switch element of which a source is connected to a second power source voltage, a source of the first switch element and a drain of the second switch element being electrically connected, comprising: a first drive circuit that drives the first switch element; a second drive circuit that drives the second switch element; a first level shift circuit; and a second level shift circuit, wherein the first drive circuit is connected to a third power source voltage which is higher by a predetermined potential with respect to a source potential of the first switch element, and is also connected to the source potential, wherein the second drive circuit is connected to a fourth power source voltage which is higher by a predetermined potential with respect to the second power source voltage, and is also connected to the second power source voltage, wherein the first level shift circuit is configured to convert an input voltage and to output a voltage level different from said input voltage to the first drive circuit, wherein the second level shift circuit converts an input signal and outputs a voltage level different from said input signal to the second drive circuit, and wherein power source voltages input to the first level shift circuit and the second level shift circuit are the third power source voltage and the second power source voltage.