| 摘要 |
<p>A current comparison circuit for comparing the value of an input current with a reference current value includes a constant current source which is arranged to produce a constant current of the reference current value and is connected to an input terminal to which the input current is allowed to flow, and a pair of PNP and NPN transistors which are arranged to have a constant voltage applied to their bases and to have their emitters interconnected. The emitters of the pair of PNP and NPN transistors are connected to a node between the input terminal and the constant current source.</p> |
