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Linearization device for amplifier with alternating amplification. RU patent 2273949.

FIELD: engineering of communication circuits for adjusting amplification of amplifiers with alternating amplification.

SUBSTANCE: transformed control signal is sent onto first circuit (input cascade fig.8) of linearization device, which generates a set of exponentially connected signals, for example, by means of differential amplifier, collector currents of transistors of which contain exponentially connected signals. Second circuit (output cascade) input linearization device is made on differential amplifier and receives to one of inputs and to its common point the exponentially connected signals of first circuit, and in response generates amplification control signal. By approximate synchronization of second circuit with amplifying cascade of amplifiers with alternating amplification and utilization of amplification control signal, generated by second circuit, transfer amplifier function of amplifiers with alternating amplification approximates appropriate characteristic of exponentially connected signals.

EFFECT: improved linearity in decibel of transferring function of amplification.

9 cl, 12 dwg

IPC classes for russian patent Linearization device for amplifier with alternating amplification. RU patent 2273949. (RU 2273949):

H03G7 - Volume compression or expansion in amplifiers

H03G3/20 - Automatic control (combined with volume compression or expansion H03G0007000000)

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