| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent breakage of a circuit element due to regeneration, concerning such a matter that the circuit element is broken by regeneration when the capacitor of an inverter controller for motor drive is made into smaller capacity. <P>SOLUTION: A second capacitor 10 is connected in parallel with a first capacitor 8 for smoothing via a second rectifying circuit 9, and load 11 is connected in parallel with a second capacitor 9, so regenerative energy is absorbed in the first capacitor 8 and the second capacitor 9, and the energy is consumed in the load 11 before the voltage gets over breakdown voltage, therefore it can prevent the breakage of the circuit element. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
