| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a buffer in which a damping force uncontrollable region is not generated even if the rotational angular speed of the rotor increases. <P>SOLUTION: The buffer 1 comprises a mechanism 2 for converting linear motion into rotary motion, a motor M being transmitted with the rotary motion, and a motor drive circuit C wherein the motor drive circuit C is constituted by connecting a plurality of arms A1, A2 and A3 each consisting of a series connection of switching elements S1, S2, S3, S4, S5 and S6 with a power supply, and connecting the switching elements S1, S2, S3, S4, S5 and S6 of each arm A1, A2, A3 with the winding of the motor M. A means 20 for interrupting power supply to the motor drive circuit C is also provided. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
