| 摘要 |
PROBLEM TO BE SOLVED: To suppress the reduction of an amplification factor caused by a connector current or a source current in a push-pull amplifier. SOLUTION: In a push-pull amplifier comprising at least one transistor pair, each of transistors comprising the transistor pair comprises a control terminal, a first terminal and a second terminal and is controlled in a current flowing between the first terminal and the second terminal in accordance with a signal applied to the control terminal. In such a push-pull amplifier, a high frequency component of the signal inputted to the control terminal of one of the transistor pair is amplified when the amount of the current flowing between the first terminal and the second terminal of the one or another transistor of the transistor pair is within a predetermined range, in comparison with the case where the amount of the current is out of the predetermined range. COPYRIGHT: (C)2006,JPO&NCIPI
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