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In electrical and electronic industry, a schematic diagram is often used to describe the design of equipment. Schematic diagrams are often used for the maintenance and repair of electronic and electromechanical systems. While schematics were traditionally drawn by hand, using standardized templates
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diagram combines some of the abstraction of a purely schematic diagram with other elements displayed as realistically as possible, for various reasons. It is a compromise between a purely abstract diagram (e.g. the schematic of the
Washington Metro) and an exclusively realistic representation (e.g.
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For example, a subway map intended for passengers may represent a subway station with a dot. The dot is not intended to resemble the actual station at all but aims to give the viewer information without unnecessary visual clutter. A schematic diagram of a chemical process uses symbols in place of
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rather than realistic pictures. A schematic usually omits all details that are not relevant to the key information the schematic is intended to convey, and may include oversimplified elements in order to make this essential meaning easier to grasp, as well as additional organization of the
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detailed representations of the vessels, piping, valves, pumps, and other equipment that compose the system, thus emphasizing the functions of the individual elements and the interconnections among them and suppresses their physical details. In an electronic
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Schematic diagrams are used extensively in repair manuals to help users understand the interconnections of parts, and to provide graphical instruction to assist in dismantling and rebuilding mechanical assemblies. Many automotive and motorcycle
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In electronic design automation, until the 1980s schematics were virtually the only formal representation for circuits. More recently, with the progress of computer technology, other representations were introduced and specialized
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tools. These tools go beyond simple drawing of devices and connections. Usually they are integrated into the whole design flow and linked to other EDA tools for verification and simulation of the circuit under design.
360:. While roads and features appear as abstract representations without resemblance to reality, their locations, orientations, and distances are as accurate as possible to make the map practical.
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were developed, since with the explosive growth of the complexity of electronic circuits, traditional schematics are becoming less practical. For example,
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463:, distribution systems or even whole electrical power grids. These diagrams simplify and compress the details that would be repeated on each phase of a
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can be obtained. If all of the parameters are represented as impedances and voltage sources, the equivalent per-phase schematic diagram is called an
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system, showing only one element instead of three. Electrical diagrams for switchgear often have common device functions designate by
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509:) can be applied. In this way, from the one-line diagram, three different per-phase schematic diagrams are obtained, known as
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For analysis purposes of a power system, from the one-line diagram, if the system is balanced, an
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Schematics for electronic circuits are prepared by designers using EDA (
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manuals devote a significant number of pages to schematic diagrams.
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This article is about technical illustrations. For other uses, see
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Comparison of pictorial and schematic styles of circuit diagrams
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In electric power systems design, a schematic drawing called a
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Engineering
Drawing and Graphic Technology, Eleventh Edition
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Representation of a system using abstract graphic symbols
471:. Another type of diagram used for power systems is a
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184:, is a designed representation of the elements of a
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405:software (EDA or "electrical CAD") is often used.
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344:the corresponding aerial view of Washington).
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501:If the power system is unbalanced, but it is
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127:Learn how and when to remove this message
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401:or pre-printed adhesive symbols, today
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65:adding citations to reliable sources
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224:and other types of diagrams, e.g.,
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169:Schematic diagram of the same.
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1311:Christopher R. Johnson
863:Technical illustration
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507:symmetrical components
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523:zero sequence diagram
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1043:Howard G. Funkhouser
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952:Francis Amasa Walker
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770:Volume visualization
745:Social visualization
599:Open-source hardware
480:equivalent per-phase
358:Tabula Peutingeriana
272:Chemical engineering
61:improve this article
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1428:in computer science
1220:Sheelagh Carpendale
1155:George G. Robertson
992:Karl Wilhelm Pohlke
927:André-Michel Guerry
803:Graph of a function
798:Engineering drawing
392:circuit driving an
329:engineering drawing
294:counter, a type of
1505:Volume cartography
1269:Early 21st century
1165:Catherine Plaisant
1160:Bruce H. McCormick
1114:Mary Eleanor Spear
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488:schematic diagram
430:schematic capture
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16:(Redirected from
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1490:Spatial analysis
1470:Misleading graph
1321:David McCandless
1296:Gordon Kindlmann
1260:Alfred Inselberg
1255:Leland Wilkinson
1190:Michael Friendly
1124:Howard T. Fisher
1087:Mid 20th century
1028:W. E. B. Du Bois
932:William Playfair
922:Adolphe Quetelet
896:Joseph Priestley
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1551:Infographics
1475:Neuroimaging
1435:CPK coloring
1418:Color coding
1356:Hans Rosling
1336:Miriah Meyer
1301:Aaron Koblin
1286:Jeffrey Heer
1180:Edward Tufte
1175:Pat Hanrahan
1145:Nigel Holmes
1023:Otto Neurath
962:Oliver Byrne
910:19th century
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59:Please help
54:verification
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1408:Cartography
1346:Ade Olufeko
1316:Manuel Lima
1245:Kwan-Liu Ma
1170:Stuart Card
1140:Borden Dent
1078:Erwin Raisz
1033:Henry Gantt
594:Transit map
465:three-phase
461:substations
390:joule thief
311:drive train
286:Electrical
243:Transit map
76:"Schematic"
1530:Categories
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1109:John Tukey
1073:Harry Beck
1068:Fritz Kahn
818:Photograph
605:References
222:Schematics
87:newspapers
1413:Chartjunk
1381:Bang Wong
1276:Polo Chau
982:John Snow
957:John Venn
838:Schematic
823:Pictogram
432:tools or
274:schematic
178:schematic
1536:Diagrams
1399:Related
808:Ideogram
542:See also
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421:design.
327:of a 3D-
1281:Ben Fry
793:Diagram
574:Diagram
456:diagram
190:symbols
153:of the
101:scholar
1401:topics
872:People
779:Image
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624:
536:repair
521:, and
503:linear
186:system
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96:
89:
82:
74:
32:Schema
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569:Chart
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482:(or
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80:news
813:Map
394:LED
292:TTL
63:by
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517:,
513::
498:.
486:)
475:.
447:.
339:A
176:A
657:e
650:t
643:v
396:.
157:.
130:)
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115:(
105:·
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91:·
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57:.
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