| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an inverter control circuit which is small and has a low-cost configuration with high efficiency even in a case where both commercial power supply and a storage battery are used. <P>SOLUTION: An inverter control circuit includes: a diode bridge 3 for full wave rectification which receives a commercial power supply 1 and rectifies an AC voltage; a step-up circuit 6 which is connected to the diode bridge 3 for full wave rectification and steps up a voltage that has been rectified; switching means which includes a storage battery 4 on an input side of the step-up circuit 6, for using one of the commercial power supply 1 and the storage battery 4 as a power supply; an inverter 9 which converts a DC current to an AC current; and control means 12 which controls the inverter 9 to drive a motor 10 by PWM control or PAM control. The control means 12 drives the motor 10 by PWM control in a case where the commercial power supply 1 is used as a power supply, and drives the motor 10 by PAM control in a case where the storage battery 4 is used as a power supply. <P>COPYRIGHT: (C)2013,JPO&INPIT |
