| 摘要 |
PURPOSE:To notify whether a load is energized or not by providing an energization detecting transistor circuit at the output terminal of a DC power source generator and emitting a light from a light emitting element by this operation. CONSTITUTION:A load is connected to an output terminal DC.OUT, and when a load current is flowed, a current ID flows through a diode 11 and a resistor 12, with the result that a voltage drop occurs between the connecting points A and B. Thus, a transistor 14 is conducted, a current is supplied to the collector, thereby allowing an LED16 to light. In this manner, the operation of the load can be notified by the lighting of the LED16. |
