| 摘要 |
PROBLEM TO BE SOLVED: To improve response of a moving body when receiving a pilot pressure, and to suppress power consumption during operation. SOLUTION: A spool is provided for switching communication between a plurality of ports. One end of the spool is impressed with a pilot pressure when a first solenoid valve 35 is turned on, while the other end of the spool is impressed with the pilot pressure when a second solenoid valve 36 is turned on. A first drive circuit 41 turns on the first solenoid valve 35 based on activation in the pilot type switching valve, and turns off after a prescribed period. A second drive circuit 42 turns on the second solenoid valve 36 based on activation and turns off after a prescribed period. A switching circuit 43 activates/deactivates in complementary manner the first drive circuit 41 and the second drive circuit 42 based on a single drive signal. COPYRIGHT: (C)2005,JPO&NCIPI
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