{"id":"circuit-diagram","no":394,"name":"Circuit Diagram","ja":"回路図","era":"1890s–","family":"図解表現","kind":"スタイル","collection":"Dictionary expansion 21","addedAt":"2026-08-18","source":{"title":"The Institution of Engineering and Technology","url":"https://www.theiet.org/"},"reference":{"status":"verified","pageUrl":"https://www.theiet.org/","credit":"The Institution of Engineering and Technology","gallery":[{"imageUrl":"https://commons.wikimedia.org/wiki/Special:FilePath/Heterodyne%20radio%20receiver%20circuit%201920.png?width=640","pageUrl":"https://commons.wikimedia.org/wiki/File:Heterodyne%20radio%20receiver%20circuit%201920.png","credit":"ラジオ受信機の回路図 1920 — Wikimedia Commons / Public domain"},{"imageUrl":"https://commons.wikimedia.org/wiki/Special:FilePath/Schematic%20diagram%20on%20the%20general%20class%20amateur%20radio%20test.JPG?width=640","pageUrl":"https://commons.wikimedia.org/wiki/File:Schematic%20diagram%20on%20the%20general%20class%20amateur%20radio%20test.JPG","credit":"アマチュア無線の回路図 — Wikimedia Commons / Public domain"},{"imageUrl":"https://commons.wikimedia.org/wiki/Special:FilePath/NIE%201905%20Telephone%20-%20simple%20switchboard%20circuit.jpg?width=640","pageUrl":"https://commons.wikimedia.org/wiki/File:NIE%201905%20Telephone%20-%20simple%20switchboard%20circuit.jpg","credit":"電話交換機の回路図（New International Encyclopedia） 1905 — Wikimedia Commons / Public domain"}]},"essence":"電気回路を規格化された記号と直交する線で描く工学の言語。物理的配置を捨てて接続関係だけを写す抽象化は、路線図にも先行する「トポロジーの図法」だった。","cues":["規格化された素子記号","直交する配線","接続点のドット","物理配置からの抽象"],"intents":["技術","信頼","静けさ"],"works":["実装ではなく接続の意図を、他人が引き継げる形で残すとき","装置の説明書や教材で、動作を系統として説明したいとき"],"recipe":{"type":"素子記号は一つの規格に統一し、値と型番を記号の脇へ添える","layout":"信号は左から右、電源は上、接地は下に流し、交差を減らす","material":"接続点は必ず黒丸で示し、交差は跨がずに直角のまま通す"},"avoid":"基板の物理配置に合わせて線を引くと信号の流れが読めず、抽象化という回路図の利点を自ら捨てることになる","colors":["#ffffff","#5e5e5e","#000000"],"motif":"notation","pair":["blueprint","flowchart"],"study":["IEC 60617の記号規格","回路図の読図教育","PCBレイアウトとの分業"],"en":{"essence":"An engineering language that draws circuits with standardized symbols and orthogonal lines. Discarding physical placement to record only connection, it arrived at a topological way of drawing well before the transit map did.","cues":["Standardized component symbols","Orthogonal wiring","Junction dots","Abstraction from physical layout"],"works":["Recording connection intent in a form another engineer can inherit","Explaining how a device works as a system in a manual or course"],"recipe":{"type":"One symbol standard throughout, values and part numbers alongside","layout":"Signal left to right, supply at the top, ground at the bottom","material":"Junctions always shown by a dot, crossings passing straight"},"avoid":"Routing the drawing to match the physical board hides the flow of signal and throws away the abstraction that made the diagram useful.","study":["the IEC 60617 symbols","learning to read schematics","the division of labor with PCB layout"]},"links":{"page":"https://indexstyle.org/styles/circuit-diagram","json":"https://indexstyle.org/api/styles/circuit-diagram","designSpec":"https://indexstyle.org/styles/circuit-diagram/design.md","imagePrompt":"https://indexstyle.org/styles/circuit-diagram/prompt.txt"},"usage":{"license":"CC-BY-4.0","licenseName":"Creative Commons Attribution 4.0 International","licenseUrl":"https://creativecommons.org/licenses/by/4.0/","attribution":"IndexStyle — https://indexstyle.org","attributionUrl":"https://indexstyle.org","scope":"Original IndexStyle text and structured data. Reference images, quoted works, and third-party material are excluded and retain their own rights."}}