| 摘要 |
PROBLEM TO BE SOLVED: To provide a faucet device capable of reducing no-load consumption power and performing stable power supply.SOLUTION: A faucet device 1 includes: a power supply circuit 4 for converting an electric power from a commercial power supply 15 into a low voltage; a lithium ion capacitor 7 for storing output from the power supply circuit 4; an electromagnetic valve 2 for performing the discharge/cut-off of water; an electromagnetic valve drive circuit 5 for driving the electromagnetic valve 2 by the stored power of the lithium ion capacitor 7 or the output of the power supply circuit 4; and a control circuit 6 for controlling operations of the electromagnetic valve drive circuit 5 and the power supply circuit 4. When the accumulated voltage of the lithium ion capacitor 7 is higher than a predetermined upper limit value, the control circuit 6 stops the operation of the power supply circuit 4. When the accumulated voltage of the lithium ion capacitor 7 is lower than the predetermined lower limit value, the control circuit 6 operates the power supply circuit 4 and charges the lithium ion capacitor 7 until the accumulated voltage becomes the upper limit value. |
