| 摘要 |
PROBLEM TO BE SOLVED: To provide a control circuit capable of reducing a standby power.SOLUTION: According to an embodiment, a control circuit comprises a switch circuit and a constant voltage circuit. The switch circuit is switched from an off state to an on state when an input voltage of a motor drive control signal for controlling drive of a motor becomes larger than a threshold that is preliminarily set. When the switch circuit is in the on state, the constant voltage circuit generates and outputs a constant voltage on the basis of a voltage supplied via the switch circuit.SELECTED DRAWING: Figure 2 |
