| 摘要 |
<p>A power supply potential rising detection circuit includes a first and a second power supply terminal; a load element (R3); a transistor (T1) having a control gate (CG) and a floating gate (FG), the transistor (T1) being connected in series with the load element (R3) between the first and second power supply terminals. The circuit also includes means for supplying a first potential to the control gate (CG), the first potential being dependent on the power supply potential (Vcc) at the first power supply terminal and a switching element (T2) operatively connected to the floating gate (FG) and controlled by a second potential which is dependent on the power supply potential (Vcc), for reducing the potential of the floating gate (FG) and turning off the transistor (T1) when the power supply potential reaches a predetermined value. An output (Vout) from power supply potential rising detection circuit being taken from a connecting point between the load element (R3) and the transistor (T1). This circuit provides a reliable stable output with a low power consumption.</p> |
