ACTIVE RC LOW-PASS FILTER OF THE SALLEN-KI SUBCLASS BASED ON VOLTAGE REPEATERS Russian patent published in 2022 - IPC H03H11/12 

Abstract RU 2786942 C1

FIELD: radio engineering.

SUBSTANCE: invention relates to radio engineering and can be used as an anti-aliasing filter to limit a given signal spectrum. An active RC low-pass filter of the Sallen-Key subclass based on voltage repeaters contains the first and second frequency-setting capacitors, the first and second frequency-setting resistors, and an output voltage repeater. An additional capacitor, the first, second and third additional voltage repeaters are introduced into the circuit, the output of the device is connected to the common bus of the power supply through the first and second additional resistors, the common node of which is connected to the first additional voltage repeater, the output of the device is connected to the common bus of the power supply through the third and fourth additional resistors, the common node of which is connected to the second additional voltage repeater, the output of which is connected to the third additional voltage repeater.

EFFECT: invention enables to create a low-pass filter of the Sallen-Key family on voltage repeaters (or buffer amplifiers with a voltage transmission coefficient close to one), which provides for the possibility of independent adjustment by different resistors of the pole frequency, pole quality factor and transmission coefficient.

1 cl, 5 dwg

Similar patents RU2786942C1

Title Year Author Number
SALLEN-KEY SUBCLASS LOW-PASS FILTER WITH INDEPENDENT TUNING OF MAIN PARAMETERS 2022
  • Denisenko Daria Iurevna
  • Prokopenko Nikolai Nikolaevich
  • Bugakova Anna Vitalevna
  • Budiakov Petr Sergeevich
RU2784375C1
TWO-CHANNEL SALLEN-KEY FAMILY LOW-PASS FILTER WITH TUNABLE UPPER CUT-OFF FREQUENCY 2022
  • Denisenko Daria Iurevna
  • Prokopenko Nikolai Nikolaevich
  • Butyrlagin Nikolai Vladimirovich
RU2790610C1
SALLEN-KEY SUBCLASS ACTIVE RC HIGH PASS FILTER BASED ON VOLTAGE FOLLOWERS 2022
  • Denisenko Daria Iurevna
  • Prokopenko Nikolai Nikolaevich
  • Ivanov Iurii Ivanovich
RU2788186C1
LOW-PASS FILTER OF THE SALLEN-KEY FAMILY WITH INDEPENDENT TUNING OF MAIN PARAMETERS 2021
  • Denisenko Daria Iurevna
  • Prokopenko Nikolai Nikolaevich
  • Titov Aleksei Evgenevich
RU2771980C1
ACTIVE SALLEN-KEY CLASS RC FILTER WITH TUNABLE BAND 2022
  • Denisenko Daria Iurevna
  • Prokopenko Nikolai Nikolaevich
  • Ivanov Iurii Ivanovich
RU2786944C1
SALLEN-KEY ANTI-ALIZING LOW-PASS FILTER WITH A LOW ZERO BIAS VOLTAGE FOR OPERATION WITH HIGH-SPEED ANALOGUE-TO-DIGITAL CONVERTERS 2022
  • Prokopenko Nikolai Nikolaevich
  • Kleimenkin Dmitrii Vladimirovich
  • Chumakov Vladislav Evgenevich
  • Titov Aleksei Evgenevich
RU2782454C1
LOW PASS FILTER 2023
  • Denisenko Daria Iurevna
  • Prokopenko Nikolai Nikolaevich
  • Pakhomov Ilia Viktorovich
RU2800970C1
LOW-PASS FILTER BASED ON A MULTI-DIFFERENTIAL OPERATIONAL AMPLIFIER 2023
  • Denisenko Daria Iurevna
  • Prokopenko Nikolai Nikolaevich
  • Titov Aleksei Evgenevich
RU2797040C1
ACTIVE RC-HIGH FREQUENCY FILTER OF THE SALLEN-KEY FAMILY BASED ON VOLTAGE FOLLOWERS 2022
  • Denisenko Daria Iurevna
  • Prokopenko Nikolai Nikolaevich
  • Butyrlagin Nikolai Vladimirovich
  • Titov Aleksei Evgenevich
RU2783043C1
RLC LOW PASS FILTER ON VOLTAGE FOLLOWERS 2022
  • Denisenko Daria Iurevna
  • Prokopenko Nikolai Nikolaevich
  • Bugakova Anna Vitalevna
  • Butyrlagin Nikolai Vladimirovich
RU2786421C1

RU 2 786 942 C1

Authors

Denisenko Daria Iurevna

Prokopenko Nikolai Nikolaevich

Titov Aleksei Evgenevich

Dates

2022-12-26Published

2022-09-29Filed