Software For The Bbc Computer - 4: Analogue Circuit Design

FE 56 March 1987 SOFTWARE FOR THE BBC COMPUTER - 4: ANALOGUE CIRCUIT DESIGN Anyone who has ever designed any kind of electronic circuit knows that this should essen- tially involve the following steps: 1.enumeration and classifi- cation of object circuit func- tions, and the definition of the minimum performance level; 2. finding the appropriate building blocks to realize the set funcitons; 3.make an on-paper design of the interconnected blocks; 4.building a test set-up with various measuring points readily accessible; 5.using measuring equipment to verify the required per- formance, make corrections, and locate the critical sections in the circuit; 6.returning to step 3, or poss- ibly step 2, to re-assess the functioning of the various cir- cuit sections, until the test set- up functions satisfactorily. If only it were that simple! In practice, circuit design involves a rather more complex process, which is one of continuous feedback, re-dimensioning, the replacement of complete ...