| 摘要 |
<p>A load control apparatus is provided in which a circuit of detecting an overcurrent can be correctly operated even if a first capacitor (C1) for noise measures is disposed. Since a second capacitor (C2) is provided between a gate and a drain of an FET (T1), when the voltage (V1) of a point (P1) decreases, a part of the gate current of the FET (T1) bypasses the FET (T1) and flows to the capacitor (C2), and the amount of charge supplied to the gate of the FET (T1) decreases. Therefore, the increase of the drain current of the FET (T1) can be suppressed and a sudden change of the voltage (V1) can be prevented. As a result, the voltage (V1) can be prevented from decreasing to such a degree that the comparator (CMP1) cannot operate, and the comparator (CMP1) can be prevented from malfunctioning.</p> |
