| 摘要 |
<p>PURPOSE:To prevent the sudden lowering of output voltage from an AC generator at the time of the overheat control operation of the AC generator by changing the condition rate of a power transistor in a voltage regulator in response to a deviation between the detecting temperature of the AC generator and triangular wave-shaped voltage. CONSTITUTION:A voltage regulator 3 intermittently controls a transistor 304, a power transistor 305, in response to the result of the comparison of output voltage from an AC generator 1 and a reference voltage. On the other hand, a comparator 407 in a temperature controller 4 alters the conduction rate of the power transistor 305 according to the result of the comparison of triangular wave-shaped voltage output from a triangular wave generating circuit 420 and the temperature of the AC generator 1 detected by a temperature detecting element 411. Accordingly, the change of the lowering of output voltage from the AC generator can be reduced even at the time of the overheat control of the AC generator.</p> |
