Indexing scheme relating to differential 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 differential amplifiers

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• H03F 2203/45002 the addition of two signals being made by addition of two currents by coupling the outputs of two current mirrors in parallel
• H03F 2203/45004 the addition of two signals being made by addition of two currents by coupling two current sources in parallel
• H03F 2203/45006 the addition of two signals being made by two emitter or source coupled followers
• H03F 2203/45008 the addition of two signals being made by a resistor addition circuit for producing the common mode signal
• H03F 2203/45011 the addition of two signals being made in a source degeneration circuit of a current mirror for producing the common mode signal
• H03F 2203/45012 the addition of two signals being made in a switched capacitor circuit for producing the common mode signal
• H03F 2203/45014 the addition of two signals being made in the tail circuit of a differential amplifier for producing the common mode signal
• H03F 2203/45016 the addition of two signals being made by paralleling two triode biased transistors for producing the common mode signal
• H03F 2203/45018 the differential amplifier amplifying transistors have added cross couplings
• H03F 2203/45021 One or more added diodes to the amplifying transistors in the differential amplifier
• H03F 2203/45022 One or more added resistors to the amplifying transistors in the differential amplifier
• H03F 2203/45024 the differential amplifier amplifying transistors are cascode coupled transistors
• H03F 2203/45026 One or more current sources are added to the amplifying transistors in the differential amplifier
• H03F 2203/45028 the differential amplifier amplifying transistors are folded cascode coupled transistors
• H03F 2203/45031 the differential amplifier amplifying transistors are compositions of multiple transistors
• H03F 2203/45032 the differential amplifier amplifying transistors are multiple paralleled transistors
• H03F 2203/45034 One or more added reactive elements, capacitive or inductive elements, to the amplifying transistors in the differential amplifier
• H03F 2203/45036 the differential amplifier amplifying transistors are single transistors
• H03F 2203/45038 One or more current sources are added or changed as balancing means to reduce the offset of the dif amp
• H03F 2203/45041 Fuses are blown to balance the dif amp to reduce the offset of the dif amp
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