PHONO-CORRECTOR WITH FOLLOW-UP SUPPLY OF PASSIVE CORRECTION CIRCUIT Russian patent published in 2019 - IPC H03F3/181 

Abstract RU 2691835 C1

FIELD: radio equipment.

SUBSTANCE: device comprises an amplifier of a current source, the non-inverting input of which is connected to the common wire, and the inverting input has connections to a resistor, the other output of which is supplied with a signal from the pickup, and with a RIAA correction circuit, other terminal of which is connected to first terminal of resistor, which second output is connected to common wire, and resistor is connected between first output of resistor and output of current source amplifier, resistor is connected between the inverting input of the current source amplifier and the first resistor output, between which the RIAA standard correction circuit is connected between the resistor and the output of the current amplifier.

EFFECT: technical result consists in reduction of distortions of current feeding circuit of passive correction.

3 cl, 10 dwg

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RU 2 691 835 C1

Authors

Shukov Igor Alekseevich

Dates

2019-06-18Published

2018-08-30Filed