| 摘要 |
An electric cleaner (100) has an electric blower (18) for producing sucking force, a sensor (36) for detecting that at least either a temperature or a pressure is at a set value, and a control circuit for controlling the operation of the electric blower. The control circuit has a drive portion (20) for supplying AC power to the electric blower in accordance with a control signal, a charging/discharging circuit (22) for charging and discharging a capacitor and outputting a control signal to the drive portion (20) when a charge voltage is equal to or more than a predetermined value, and a resistor body (30) with a resistance value. The control circuit switches, in accordance with detection by detecting means, between the conduction and cutout of photo-couplers (26, 28) for electrically connecting one end and the other end of the resistor body (30).
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