FIELD: radio engineering, automatic control, and telemechanics. SUBSTANCE: filter has series-connected resistive input-signal voltage divider, integrating amplifier using operational amplifier, and summing amplifier using operational amplifier with negative feedback circuit between them, scaling amplifier built around operational amplifier and capacitor series-connected between respective tap of resistive input-signal voltage divider and summing amplifier using operational amplifier; noninverting input of scaling amplifier using operational amplifier is connected to second lead of ninth resistor and via ninth newly introduced resistor it is connected to common bus. EFFECT: provision for independent pole attenuation control. 1 dwg
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Authors
Dates
1997-11-20—Published
1995-06-26—Filed