| 摘要 |
<p>A detection circuit (207) detects exciting current flowing into an excitation winding (102). A control circuit (206) performs gradual-excitation control to restrict increase of drive duty of MOSFET (201) and restricts exciting current flowing into excitation winding when controlling output voltage of generator (1) to adjustment voltage. The control circuit cancels exciting current control if output voltage is lower than setting value which is set lower than adjustment voltage and cancels gradual-excitation control if output voltage is lower than low setting value.</p> |
