{"schemaVersion":1,"slug":"active-front-end-rectifier","name":"Active front-end rectifier","kind":"symbol","abbreviation":"AFE","aliases":["active rectifier","PWM rectifier","bidirectional AC DC front end"],"category":"microgrid-systems","drawingTypes":["Schematic","SLD"],"referenceFamilies":["Manufacturer"],"summary":"An actively switched AC/DC stage using a documented current-control and DC-link regulation arrangement.","description":["An actively switched AC/DC stage using a documented current-control and DC-link regulation arrangement.","On a schematic, identify the AC connection, coupling inductors/filter and active switching bridge and trace the DC-link energy path and front-end control interfaces. Keep the component tag and signal/reference names consistent across the control drawing, terminal schedule and device documentation.","An AFE differs from a passive diode bridge; bidirectional operation and power-factor behaviour depend on the actual system/control implementation.","The preview is a conceptual topology reference rather than a complete power-stage circuit. Switching sequences, magnetic design, component selection and control/protection details belong in the equipment design documentation."],"readingNotes":["Identify the AC connection, coupling inductors/filter and active switching bridge.","Trace the DC-link energy path and front-end control interfaces."],"drawingChecklist":["Label the AC connection, coupling inductors/filter and active switching bridge.","Cross-reference the DC-link energy path and front-end control interfaces.","Add the selected device or circuit documentation revision, power/reference connections and project signal convention."],"distinction":"An AFE differs from a passive diode bridge; bidirectional operation and power-factor behaviour depend on the actual system/control implementation.","facts":[{"label":"Common schematic mnemonic","value":"AFE — descriptive only; project/device documentation defines reference designations."},{"label":"Terminal / interface focus","value":"The AC connection, coupling inductors/filter and active switching bridge"},{"label":"Artwork scope","value":"Original conceptual topology block; not a complete switch-level circuit."}],"references":[{"sourceId":"pub-electronics-infineon-inverter","relevance":"Public primary manufacturer documentation establishes the component function or circuit/topology relationship. Preview geometry and drafting explanations are independently authored."}],"related":["three-phase-bridge-rectifier","power-converter"],"artwork":"electronics-power-afe","publishedOn":"2026-10-14","updatedOn":"2026-10-14","provenance":"independent-public-research","url":"https://eloragrid.ai/symbols/active-front-end-rectifier","illustration":{"url":"https://eloragrid.ai/library/illustrations/active-front-end-rectifier.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"pub-electronics-infineon-inverter","title":"Bidirectional three-/single-phase AC/DC PFC and inverter application note","publisher":"Infineon Technologies","url":"https://www.infineon.com/assets/row/public/documents/24/42/infineon-ac-dc-pfc-11-kw-high-efficiency-high-density-bidirectional-three-single-phase-inverter-applicationnotes-en.pdf","type":"manufacturer","scope":"Public application context for actively switched AC/DC and inverter stages. Independent miniature topology illustrations have no copied product-specific values, wiring layouts or control implementation.","checkedOn":"2026-10-14","reuse":"link-only","relevance":"Public primary manufacturer documentation establishes the component function or circuit/topology relationship. Preview geometry and drafting explanations are independently authored."}]}