FIELD: radio engineering and communications.
SUBSTANCE: invention relates to radio engineering and communications and can be used as a device for extracting a given signal spectrum, for example, during its further processing by analog-to-digital converters of various modifications. An active RC high-pass filter of the Sallen-Key family based on voltage followers contains an input (1) and an output (2) of the device, the first (3) and second (4) frequency-setting capacitors, the first (5) and second (6) frequency-setting resistors, output voltage follower (7), the output of which is connected to the output (2) of the device. The output of the output voltage follower (7) is connected to a common power supply bus through the first (8) and second (9) additional resistors connected in series, the common node of which is connected to the input of the output voltage follower (7) through the second (6) frequency-setting resistor, the output of the output voltage follower (7) is connected to the common power supply bus through the third (10) and fourth (11) additional resistors connected in series, the input (1) of the device is connected to the input of the first (12) additional voltage follower through the first (3) frequency-setting capacitor, and the output of the first (12) additional voltage follower is connected to the input of the output voltage follower (7) through the second (4) frequency setting capacitor, the common node of the third (10) and fourth (11) additional resistors is connected to the input of the second (13) additional voltage follower, output which is connected to the input of the first (12) additional voltage follower through the first (5) part pull-out resistor.
EFFECT: creation of conditions under which a high-pass filter of the Sallen-Key family is implemented with the possibility of independent adjustment by different resistors of the pole frequency, the quality factor of the pole and the transmission coefficient.
1 cl, 5 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| TWO-CHANNEL SALLEN-KEY FAMILY LOW-PASS FILTER WITH TUNABLE UPPER CUT-OFF FREQUENCY | 2022 |
|
RU2790610C1 |
| ACTIVE RC LOW-PASS FILTER OF THE SALLEN-KI SUBCLASS BASED ON VOLTAGE REPEATERS | 2022 |
|
RU2786942C1 |
| SALLEN-KEY SUBCLASS LOW-PASS FILTER WITH INDEPENDENT TUNING OF MAIN PARAMETERS | 2022 |
|
RU2784375C1 |
| HIGH-PASS FILTER OF THE SALLEN-KEY FAMILY WITH INDEPENDENT TUNING OF MAIN PARAMETERS | 2021 |
|
RU2772314C1 |
| SALLEN-KEY SUBCLASS ACTIVE RC HIGH PASS FILTER BASED ON VOLTAGE FOLLOWERS | 2022 |
|
RU2788186C1 |
| SALLEN-KI CLASS REJECTOR FILTER | 2022 |
|
RU2779632C1 |
| ACTIVE SALLEN-KEY CLASS RC FILTER WITH TUNABLE BAND | 2022 |
|
RU2786944C1 |
| BAND FILTER OF THE SALLEN-KEY FAMILY | 2021 |
|
RU2774806C1 |
| SALLEN-KEY FAMILY BAND-PASS FILTER WITH INDEPENDENT TUNING OF MAIN PARAMETERS | 2021 |
|
RU2772316C1 |
| SALLEN-KEY CLASS BAND FILTER WITH INDEPENDENT TUNING OF MAIN PARAMETERS | 2021 |
|
RU2771979C1 |
