FIELD: radio engineering, automatic control, and telemechanics. SUBSTANCE: active RC filter has series- connected resistive input-signal voltage divider, integrating amplifier built around operational amplifier, and summing amplifier built around operational amplifier with negative feedback circuit applied to them, series-connected scaler built around operational amplifier and capacitor inserted between respective tap of resistive input-signal voltage divider and input of summing amplifier built around operational amplifier; novelty is that noninverting input of operational amplifier of integrating amplifier is connected to inverting input of operational amplifier of scaler. EFFECT: enlarged frequency range and/or improved signal rejection at zero frequency. 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| ACTIVE RC FILTER | 1995 |
|
RU2096910C1 |
| ACTIVE BAND RC FILTER | 1992 |
|
RU2089998C1 |
| ACTIVE RC FILTER | 1996 |
|
RU2108660C1 |
| ADJUSTABLE ARC FILTER | 1995 |
|
RU2110140C1 |
| ACTIVE RC FILTER | 1990 |
|
RU2089041C1 |
| UNIVERSAL ACTIVE RC FILTER | 1999 |
|
RU2149499C1 |
| PROGRAMMABLE ARC FILTER | 2000 |
|
RU2169430C1 |
| BANDPASS ARC FILTER | 1999 |
|
RU2154337C1 |
| ARC BAND FILTER WITH POLE FREQUENCY REDUCTION | 1999 |
|
RU2150782C1 |
| ACTIVE RC PHASE CIRCUIT | 1991 |
|
RU2019027C1 |
