| 摘要 |
PROBLEM TO BE SOLVED: To provide a detection circuit capable of avoiding erroneous detection immediately after turning on a power supply.SOLUTION: A detection circuit includes an output transistor provided between a voltage input terminal and a voltage output terminal, and a load open-circuit detection circuit configured to detect an open-circuit of a load connected to the voltage output terminal. An output circuit of the load open-circuit detection circuit comprises a first transistor and a second transistor connected in series, where the first transistor has a gate connected in common with a gate of the output transistor, and a second transistor has a gate to which a load open-circuit detection signal is fed. The detection circuit is configured such that the first transistor turns off when the output transistor is off.SELECTED DRAWING: Figure 1 |
