Patent ID: 9190947
Filing Date: 2015-11-17
Classification: B25F,H02P

Abstract:
1. An electric power tool comprising: a tool main body; an induction motor configured to generate a power of the electric power tool; a power supply unit configured to rectify an alternating-current voltage supplied from an external alternating-current power source and generate a drive voltage for driving the induction motor; and an inverter configured to receive supply of the drive voltage from the power supply unit and drive the induction motor, wherein the power supply unit and the inverter are integrally incorporated in the tool main body together with the induction motor, wherein the induction motor includes at least one phase winding, wherein the power supply unit includes a rectifier circuit configured to perform full-wave rectification of the alternating-current voltage and output a full-wave rectified voltage as an output voltage, wherein the inverter includes: