Drive circuit and inverter for voltage driving type semiconductor device

摘要

A drive circuit (1) for driving a semiconductor element (M1) is equipped with: a first switch (SW1) connected to a positive side of a DC power supply (Vdd); a second switch (SW2) connected to the other terminal of the first switch (SW1) and to a negative side of the DC power supply (Vdd); a third switch (SW3) connected to the positive side of the DC power supply (Vdd); a fourth switch (SW4) connected to the other terminal of the third switch (SW3); a fifth switch (SW5) connected to the other terminal of the fourth switch (SW4) and to the negative side of the DC power supply; and a capacitor (Cin) connected to the other terminal of the first switch (SW1) and to the other terminal of the fourth switch (SW4). In the drive circuit (1), a gate of the semiconductor element (M1) is connected to the other terminal of said third switch (SW3); and a source of the semiconductor element (M1) is connected to the negative side of the DC power supply (Vdd).