Semiconductor device

A semiconductor device, comprising a semiconductor unit and a power source section, wherein

• said semiconductor unit includes:
• a parallel connection structure in which a main switching element and a first diode are connected in parallel between a first node and a second node;
• a first snubber device having a clamp level that does not exceed the breakdown voltage of said main switching element;
• and
• a second snubber device having a clamp level that is the same as or higher than the output voltage of said power source section for supplying electric power to a drive circuit for driving said main switching element,
• one terminal of said first snubber device is connected through said first node to one end of said parallel connection structure, the opposite terminal of said first snubber device is connected through a third node to one terminal of said second snubber device, and the opposite terminal of said second snubber device is connected through said second node to the opposite end of said parallel connection structure, and
• electric power is fed back to said power source section through said second and third nodes.