摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hybrid type working machine which suppresses dispersion in controllability of a load, damage to a driver of the load by an overcurrent, and the like by stabilizing a DC bus voltage value. <P>SOLUTION: The hybrid type working machine includes: a plurality of inverters for driving a plurality of motor-driven working elements; a capacitor which transfers electric power between a plurality of the inverters; a DC bus connected to a plurality of the inverters; and a step-up/step-down converter arranged between the DC bus and the accumulator. <P>COPYRIGHT: (C)2010,JPO&INPIT |