| 摘要 |
<p>PURPOSE:To suppress fluctuation in the detection of power generated from alternator of automobile and to reduce capacitance of smoothing capacitor in power generation detecting circuit. CONSTITUTION:A first rising value (1.0V) of generation detection voltage obtained from an alternator is detected by means of a comparator 35 and delivered as a reset signal to a flip-flop 27. A second value (3V) higher than the first value is then detected by means of a comparator 41 and delivered as a set signal to the flip-flop 27. Output from the flip-flop 27 is smoothed by a filter 30 to be employed in the control of a transistor 3.</p> |
