| 摘要 |
A push-pull amplifier includes a voltage inversion circuit 9 that uses an output of the differential amplifier 1 as an input signal, and includes a set of resistors 7a, 7b, and a differential amplifier 8 for inverting the polarity of the input signal, a level shifting circuit 3 that shifts the level of an output signal of the voltage inversion circuit 9 to a prescribed level, while inverting the polarity of the output signal, and an output amplifier circuit 4 that includes complementary transistors which are different from each other in polarity. The transistors are inputted with the above-mentioned input signal and the output signal of the level shifting circuit 3, respectively for carrying out push-pull amplification.
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