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A circuit requires two fundamental parts in its most elementary state. Which is a source of energy and a load that will convert the energy in to work.

But not all applications with electricity would require work to be done. In the field of digital systems there are a use for electricity to automate the process of decision making and data management. This type of electrical circuits require:

*Input source of data or signal often as part of a HMI (Human Machine Interface).

*Output of data or signal often as part of a HMI.

*Source of electrical energy.

*Logical process.

*Storage of data.

These types of circuits called digital circuits can be combined with other types of electrical circuits to perform tasks for industrial automation, communication, data processing like with computers and calculators.

Most of consumer electronics are made from carefully designed circuits that consist of resistors, capacitors, transistors, integrated circuits, diodes, switches, transducers, Transformers and pre-manufactured modules. The complex structures that these devices are applied to, can result in precise and very useful functions for the benefit of humans and nature.

In the design of electrical circuits, the great challenge is to create a perfect and reliable electrical function from imperfect and fragile components.

The design of basic electrical circuits should always challenge features that improve safety, functionality, reliability, economy and energy efficiency.

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14y ago

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