Indexing scheme relating to amplifiers

185 direct subcodes

Child Classifications

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H03F 2200/03 the amplifier being designed for audio applications
H03F 2200/06 A balun, i.e. balanced to or from unbalanced converter, being present at the input of an amplifier
H03F 2200/09 A balun, i.e. balanced to or from unbalanced converter, being present at the output of an amplifier
H03F 2200/102 A non-specified detector of a signal envelope being used in an amplifying circuit
H03F 2200/105 A non-specified detector of the power of a signal being used in an amplifying circuit
H03F 2200/108 A coil being added in the drain circuit of a FET amplifier stage, e.g. for noise reducing purposes
H03F 2200/111 the amplifier being a dual or triple band amplifier, e.g. 900 and 1800 MHz, e.g. switched or not switched, simultaneously or not
H03F 2200/114 the amplifier comprising means for electro-magnetic interference [EMI] protection
H03F 2200/117 A coil being coupled in a feedback path of an amplifier stage
H03F 2200/12 A bias circuit for some stages being shown using transmission lines
H03F 2200/121 A transistor in common gate configuration being used in a feedback circuit of an amplifier stage
H03F 2200/123 A difference signal between an output and an input signal of an amplifier being coupled back at the input of the amplifier
H03F 2200/126 A diode being coupled in a feedback path of an amplifier stage, e.g. active or passive diode
H03F 2200/129 there being a feedback over the complete amplifier
H03F 2200/132 Hybrid coupler placed in a feedback circuit of an amplifier
H03F 2200/135 there being a feedback over one or more internal stages in the global amplifier
H03F 2200/138 the feedback circuit comprising a parallel resonance circuit
H03F 2200/141 the feedback circuit of the amplifier stage comprising a resistor and a capacitor in series, at least one of them being an active one
H03F 2200/144 the feedback circuit of the amplifier stage comprising a passive resistor and passive capacitor
H03F 2200/147 the feedback circuit comprising a series resonance circuit