"A logic gate is an idealized or physical device implementing a Boolean function, that is, it performs a logical operation on one or more logical inputs, and produces a single logical output. Depending on the context, the term may refer to an ideal logic gate, one that has for instance zero rise time and unlimited fan-out, or it may refer to a non-ideal physical device...
Logic gates are primarily implemented using diodes or transistors acting as electronic switches, but can also be constructed using electromagnetic relays (relay logic), fluidic logic, pneumatic logic, optics, molecules, or even mechanical elements. With amplification, logic gates can be cascaded in the same way that Boolean functions can be composed, allowing the construction of a physical model of all of Boolean logic, and therefore, all of the algorithms and mathematics that can be described with Boolean logic.
Logic circuits include such devices as multiplexers, registers, arithmetic logic units (ALUs), and computer memory, all the way up through complete microprocessors, which may contain more than 100 million gates. In practice, the gates are made from field-effect transistors (FETs), particularly MOSFETs (metal–oxide–semiconductor field-effect transistors).
Compound logic gates AND-OR-Invert (AOI) and OR-AND-Invert (OAI) are often employed in circuit design because their construction using MOSFETs is simpler and more efficient than the sum of the individual gates.
In reversible logic, Toffoli gates are used." [Logic gate. Wikipedia]
The logic gate diagram template for the ConceptDraw PRO diagramming and vector drawing software is included in the Electrical Engineering solution from the Engineering area of ConceptDraw Solution Park.
www.conceptdraw.com/ solution-park/ engineering-electrical
Logic gates are primarily implemented using diodes or transistors acting as electronic switches, but can also be constructed using electromagnetic relays (relay logic), fluidic logic, pneumatic logic, optics, molecules, or even mechanical elements. With amplification, logic gates can be cascaded in the same way that Boolean functions can be composed, allowing the construction of a physical model of all of Boolean logic, and therefore, all of the algorithms and mathematics that can be described with Boolean logic.
Logic circuits include such devices as multiplexers, registers, arithmetic logic units (ALUs), and computer memory, all the way up through complete microprocessors, which may contain more than 100 million gates. In practice, the gates are made from field-effect transistors (FETs), particularly MOSFETs (metal–oxide–semiconductor field-effect transistors).
Compound logic gates AND-OR-Invert (AOI) and OR-AND-Invert (OAI) are often employed in circuit design because their construction using MOSFETs is simpler and more efficient than the sum of the individual gates.
In reversible logic, Toffoli gates are used." [Logic gate. Wikipedia]
The logic gate diagram template for the ConceptDraw PRO diagramming and vector drawing software is included in the Electrical Engineering solution from the Engineering area of ConceptDraw Solution Park.
www.conceptdraw.com/ solution-park/ engineering-electrical
Engineering
This solution extends ConceptDraw PRO v9.4 with the ability to visualize industrial systems in electronics, electrical, chemical, process, and mechanical engineering.
"Fault tree analysis (FTA) ... can be used to:
(1) understand the logic leading to the top event / undesired state.
(2) show compliance with the (input) system safety / reliability requirements.
(3) prioritize the contributors leading to the top event - Creating the Critical Equipment/ Parts/ Events lists for different importance measures.
(4) monitor and control the safety performance of the complex system (e.g., is a particular aircraft safe to fly when fuel valve x malfunctions? For how long is it allowed to fly with the valve malfunction?).
(5) minimize and optimize resources.
(6) assist in designing a system. The FTA can be used as a design tool that helps to create (output / lower level) requirements.
(7) function as a diagnostic tool to identify and correct causes of the top event. It can help with the creation of diagnostic manuals / processes." [Fault tree analysis. Wikipedia]
The fault tree analysis diagram template for the ConceptDraw PRO diagramming and vector drawing software is included in the Fault Tree Analysis Diagrams solution from the Engineering area of ConceptDraw Solution Park.
www.conceptdraw.com/ solution-park/ engineering-fault-tree-analysis-diagrams
(1) understand the logic leading to the top event / undesired state.
(2) show compliance with the (input) system safety / reliability requirements.
(3) prioritize the contributors leading to the top event - Creating the Critical Equipment/ Parts/ Events lists for different importance measures.
(4) monitor and control the safety performance of the complex system (e.g., is a particular aircraft safe to fly when fuel valve x malfunctions? For how long is it allowed to fly with the valve malfunction?).
(5) minimize and optimize resources.
(6) assist in designing a system. The FTA can be used as a design tool that helps to create (output / lower level) requirements.
(7) function as a diagnostic tool to identify and correct causes of the top event. It can help with the creation of diagnostic manuals / processes." [Fault tree analysis. Wikipedia]
The fault tree analysis diagram template for the ConceptDraw PRO diagramming and vector drawing software is included in the Fault Tree Analysis Diagrams solution from the Engineering area of ConceptDraw Solution Park.
www.conceptdraw.com/ solution-park/ engineering-fault-tree-analysis-diagrams
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