A new algorithm for the tuning of analog filters
Abstract
An algorithm is proposed for the tuning of analog filters. Tellegen's theorem and the adjoint network concept are used to relate large changes in a set of tuning elements to desired voltage changes in the manufactured filter. The component values in the manufactured circuit are measured and the deviation of the voltages in the manufactured circuit from the corresponding voltages in the nominal circuit design are computed at a set of critical frequencies. A set of tuning resistors is chosen and this information is entered into the large change sensitivity expression. The changes in the tuning elements needed to reduce these voltages deviations to zero are computed by solving a set of linear algebraic equations whose rank is equal to the number of tuning elements plus one. It is shown that the method converges much faster to the desired solution than first order sensitivity and optimization methods.
 Publication:

Ph.D. Thesis
 Pub Date:
 February 1979
 Bibcode:
 1979PhDT........47A
 Keywords:

 Electric Filters;
 Resistors;
 Tuning;
 Algorithms;
 Critical Frequencies;
 Linear Equations;
 Transfer Functions;
 Electronics and Electrical Engineering