| 摘要 |
PROBLEM TO BE SOLVED: To provide a brushless motor driving device and a hot water feeding device constituted to save electric power. SOLUTION: This brushless motor driving device is provided with a driving control means (a PWM driving circuit 8) for generating rotatory-driving signals, a control power source 18 for generating control voltage, and feed control means (a switch 20, an on-off control circuit 22 and a control device 14) for programming and applying control voltage applied to the driving control means from the control power source 18. Electric power is saved by programming action and feed to the driving control means.
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