| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a motor power supply apparatus which can reduce a product size and a manufacturing cost. <P>SOLUTION: The motor power supply apparatus includes a resistor arranged in a first attached line, an overvoltage protective diode disposed in parallel with the resistor, an overvoltage protective switching element connected to the other end of a capacitor, a dynamic braking resistor disposed at a second attached line, a first switching unit for connecting one end of a capacitor selectively to any one of the resistors disposed at the (+) power supply terminal of a rectifier and disposed at the first attached line, a second switching unit for connecting the connecting terminal of an inverter selectively to any one of dynamic braking resistors disposed at the the power supply line and disposed at the second attached line, and a controller for controlling the first and second switching units. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
