Importance

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Abstract

An amplifier stage for use with low-resistance AC voltage sources has first and second complimentary transistors, each having a control terminal, a current input terminal and a current output terminal. The transistors are connected together at a first junction point, a current terminal of the second complementary transistor being connected at the first junction point to a corresponding current terminal of the first complimentary transistor. The respective other corresponding current terminals of the transistors are connected to respective opposite poles of a direct current supply, so that the first transistor, the second transistor, and the direct current supply form a series connection providing a common quiescent current to the transistors. The transistors are each provided with a respective separate direct current operating voltage at a respective control terminal. The transistors are connected to receive an input AC voltage at respective corresponding current input terminals, thereby receiving the input AC voltage in parallel.

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First Claim