using a combination of several amplifiers

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Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00 > Indexing scheme relating to power amplifiers, e.g. Class B amplifiers, Class C amplifiers > with semiconductor devices only > using a combination of several amplifiers

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• H03F 2203/21103 An impedance adaptation circuit being added at the input of a power amplifier stage
• H03F 2203/21106 An input signal being distributed in parallel over the inputs of a plurality of power amplifiers
• H03F 2203/21109 An input signal being distributed by switching to a plurality of paralleled power amplifiers
• H03F 2203/21112 A filter circuit being added at the input of a power amplifier stage
• H03F 2203/21115 An input signal dependant signal being measured by current measuring at the input of a power amplifier
• H03F 2203/21118 An input signal dependant signal being measured by power measuring at the input of a power amplifier
• H03F 2203/21121 An input signal dependant signal being measured by voltage measuring at the input of a power amplifier
• H03F 2203/21124 A parallel resonance circuit being coupled at the input of a power amplifier
• H03F 2203/21127 the input bias current of a power amplifier being controlled, e.g. by an active current source or a current mirror
• H03F 2203/21131 the input bias voltage of a power amplifier being controlled, e.g. by a potentiometer or an emitter follower
• H03F 2203/21133 A series resonance circuit being coupled at the input of a power amplifier
• H03F 2203/21136 An input signal of a power amplifier being on/off switched
• H03F 2203/21139 An impedance adaptation circuit being added at the output of a power amplifier stage
• H03F 2203/21142 Output signals of a plurality of power amplifiers are parallel combined to a common output
• H03F 2203/21145 Output signals are combined by switching a plurality of paralleled power amplifiers to a common output
• H03F 2203/21148 An output signal of a power amplifier being controlled by controlling current signal, e.g. by controlled current mirror
• H03F 2203/21151 An output signal of a power amplifier being controlled by controlling power signal, e.g. by an inductive coupler
• H03F 2203/21154 An output signal of a power amplifier being controlled by controlling voltage signal
• H03F 2203/21157 A filter circuit being added at the output of a power amplifier stage
• H03F 2203/21161 An output signal dependant signal being measured by current measuring at the output of a power amplifier
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