Analog and Digital Circuits for Electronic Control System Applications

Analog system designers many times in the past avoided the use of electronics for their system functions
because electronic circuits could not provide the dynamic range of the signal without severe nonlinearity, or
because the circuits drifted or became unstable with temperature, or because the computations using analog
signals were quite inaccurate. As a result, the design shifted to other disciplines, for example, mechanical.
Today, young engineers requested by their superiors to design an analog control system, have an entirely
new technique available to them to help them design the system and overcome the “old” problems. The design
technique is this: sense the analog signals and convert them to electrical signals; condition the signals
so they are in a range of inputs to assure accurate processing; convert the analog signals to digital; make the
necessary computations using the very high-speed IC digital processors available with their high accuracy;
convert the digital signals back to analog signals; and output the analog signals to perform the task at hand.

Từ khóa: Digital Circuits, Electronic Control, system designers, thiết kế hệ thống, hệ thống điều khiển, điều khiển điện tử