| 摘要 |
<p>A circuit exhibiting the characteristics of a transistor suited for use in a quasi-complementary push-pull amplifier uses input and output transistors of the same conductivity type. The "base" electrode of the composite transistor is at the emitter electrode of the input transistor, operated as a common-base amplifier. The collector electrode of the input transistor is coupled by a current mirror amplifier to the base electrode of the output transistor. The "emitter" electrode of the composite transistor is at the joined base electrode of the input transistor and the collector electrode of the output transistor. The "collector" electrode of the composite transistor is at the emitter electrode of the output transistor. The current gain of the composite transistor can be made to be equal to that of the output transistor, although the apparent conductivity type of the composite device is opposite to that of the input and the output transistors.</p> |
