| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a compact and low-noise motor drive controller. <P>SOLUTION: The motor drive control unit is equipped with a rectifying circuit 2 which inputs AC power source 1, and an inverter circuit 4 which is connected between the outputs of the rectifying circuit 2 and drives the motor connected to at least two or more small-capacity film capacitors (31, 32) and the output of the rectifying circuit 2, wherein n-pieces (n is an integer of two or more) of the film capacitors connected between the outputs of the rectifying circuit 2 are used to reduce the noises caused by the current voltage pulsation of the inverter generated by the film capacitors (31, 32), thereby the compact and low-noise motor drive control unit can be obtained without using a cover or the like for a noise countermeasure. <P>COPYRIGHT: (C)2007,JPO&INPIT |
