Frequency filter of first or higher order - has circuit structure of analog components and delay of seperational amplifiers of constant group transition time

摘要

The frequency filter transmission function and circuit structure are given by dimensioning for digital filters. The amplitude valued signal components are added by a chain-linked delay with different time valuation, the signal components formed by multiplication, corresp. to filter coeffts. The circuit structure is formed by analog components, and the delays are formed by operational amplifiers of constant group transit time. The signal component multiplication is carried out by ohmic resistors, rated in accordance with the filter coeffts. The addition of different amplitude and time valued components takes place in the resistor nodal points. USE/ADVANTAGE - For low, high, band, and all pass filters. High precision design.