| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a differential amplifying circuit improving the loading current capability without increasing the idling current of an output stage. <P>SOLUTION: In an idle base current canceling unit 102 to cancel the base currents of a first transistor 1 and a tenth transistor 10, the collector current of the tenth transistor 10 as an excessive current is supplied to the base of the seventh transistor 7 by the action of a supplementary current feed unit 104 to improve an output current capacity when a sink current flows through the seventh transistor 7 of a push-pull output stage 106 composed of a sixth transistor 6 and the seventh transistor 7. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
