Output circuit for a semiconductor amplifier element
AssigneeKoninklijke Philips Electronics N.V.
InventorsIgor Ivanovich Blednov, Alle Kornelis Vennema
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Abstract
An output circuit for a semiconductor amplifier element having an output capacitance (20, 42) that is to be cancelled by a first LC circuit having a first inductance (22, 44) and a first capacitance (24, 46), said output circuit comprising an additional inductance circuit with an additional inductance (30, 52) and an additional capacitance (32, 54), said first inductance circuit and said additional inductance circuit compensating for the output capacitance (20, 42) of the semiconductor amplifier element, while the first inductance (22, 44) and the first capacitance (24, 46) cancel out the second harmonics within the output signal of the semiconductor amplifier element.
Claims10
An output circuit for a semiconductor amplifier element having an output capacitance (20, 42) that is to be cancelled out by a first LC circuit having a first inductance (22,44) and a first capacitance (24, 46), said output circuit comprising an additional inductance circuit comprising an additional inductance (30, 52) and an additional capacitance (32, 54), said first inductance circuit and said additional inductance circuit compensating for the output capacitance (20, 42) of the semiconductor amplifier element, while the first inductance (22,44) and the first capacitance (24, 46) suppress the second harmonics within the output signal of the semiconductor amplifier element, wherein the additional inductance is connected to a node between the first inductance and the first capacitance.
Dependencies are inferred from the claim text.