Abstract: A circuit can be analyzed in almost as many ways as there are electronic engineers, and if the equations are written correctly, all methods yield the same answer. There are some simple ways to analyze the circuit without completing unnecessary calculations, and these methods are illustrated in this chapter. Ohm's law is stated, and it is fundamental to all electronics. Ohm's law can be applied to a single component, to any group of components, or to a complete circuit. When the current flowing through any portion of a circuit is known, the voltage dropped across that portion of the circuit is obtained by multiplying the current times the resistance. Additionally, at times, it is advantageous to isolate a part of the circuit to simplify the analysis of the isolated part of the circuit rather than write loop or node equations for the complete circuit and solve them simultaneously. Thevenin's theorem enables to isolate the part of the circuit one interested in. Then the remaining circuit is replaced with a simple series equivalent circuit, thus Thevenin's theorem simplifies the analysis. Further, the amplifier is an analog circuit, and the calculations, plus the points that must be considered during the design, are more complicated than for a saturated circuit. This extra complication leads people to say that analog design is harder than digital design (the saturated transistor is digital, i.e., on or off). Analog design is harder than digital design because the designer must account for all states in analog, whereas only two states must be accounted for in digital.
Publication Year: 1944
Publication Date: 1944-07-01
Language: en
Type: article
Indexed In: ['crossref']
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