Resonant type high frequency power supply device and switching circuit for resonant type high frequency power supply device

A switching circuit for a resonant type high frequency power supply device, said switching circuit including a power semiconductor element that performs a switching operation and being used for the resonant type high frequency power supply device, said switching circuit comprising:

• said power semiconductor element;
• a second power semiconductor element at least one or more element connected in parallel to said power semiconductor element to achieve optimization of parasitic capacitances of said power semiconductor element and said second power semiconductor element itself;
• and
• a high frequency pulse drive circuit that transmits a pulse-shaped voltage signal having a high frequency exceeding 2 MHz to said power semiconductor element and said second power semiconductor element to drive said power semiconductor element and said second power semiconductor element.

A switching circuit for a resonant type high frequency power supply device, said switching circuit including a power semiconductor element that performs a switching operation and being used for the resonant type high frequency power supply device, said switching circuit comprising:

• said power semiconductor element;
• at least one diode or more connected in parallel to said power semiconductor element to achieve optimization of parasitic capacitances of said power semiconductor element and said diode itself;
• and
• a high frequency pulse drive circuit that transmits a pulse-shaped voltage signal having a high frequency exceeding 2 MHz to said power semiconductor element to drive said power semiconductor element.