| 摘要 |
<p>A load-connection-state detection circuit (100) having a current limiting circuit (10) includes a PNP first transistor (1) having an emitter connected to a power terminal (22) and a collector connected to a connector (21), an NPN second transistor (2) having an emitter connected to the power terminal (22), a collector connected to the base of the first transistor (1), and a base connected to the collector of the first transistor (1), and a first resistance (11) connected between the emitter and the collector of the first transistor (1). The load-connection-state detection circuit (100) further includes a switching element (3) having one end (drain) connected to the base of the second transistor (2), the other end (source) connected to the ground, and a control end (gate) connected to the collector of the second transistor (2).</p> |
