{
  "node": {
    "id": "term:smbus",
    "type": "Term",
    "label": "SMBus",
    "properties": {
      "id": "smbus",
      "name": "SMBus",
      "aka": [
        "System Management Bus",
        "smart battery"
      ],
      "section": "topic-pack",
      "definition": "The two-wire bus, derived from I²C, over which a laptop or tool battery reports its charge, health and limits to the host and charger. The Smart Battery Data specification defines the register set, so any compliant charger can read it.",
      "related": [
        "bms",
        "fuel-gauge",
        "consumer-electronics",
        "charger"
      ],
      "url": "https://lemonergy.com/learn/glossary/smbus/",
      "mentions": []
    }
  },
  "edges": [
    {
      "id": "edge:3026",
      "source": "term:smbus",
      "target": "topic:topic-pack",
      "type": "belongsTo",
      "properties": {
        "sourceFile": "terms.json"
      }
    },
    {
      "id": "edge:3027",
      "source": "term:smbus",
      "target": "term:bms",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    },
    {
      "id": "edge:3028",
      "source": "term:smbus",
      "target": "term:fuel-gauge",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    },
    {
      "id": "edge:3029",
      "source": "term:smbus",
      "target": "term:consumer-electronics",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    },
    {
      "id": "edge:3030",
      "source": "term:smbus",
      "target": "term:charger",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    }
  ],
  "neighbors": [
    {
      "id": "topic:topic-pack",
      "type": "Topic",
      "label": "Modules, packs and battery management",
      "properties": {
        "id": "topic-pack",
        "name": "Modules, packs and battery management",
        "lede": "From a single cell to a working battery system, and the electronics that keep it safe.",
        "context": "Make series/parallel architecture explicit.",
        "example": "Twelve 3.6 V, 5 Ah cells in 6s2p give 21.6 V, 10 Ah and 216 Wh nominally before other restrictions.",
        "lesson_url": "https://lemonergy.com/learn/fundamentals/cell-architecture/",
        "lesson_label": "Open cell architecture"
      }
    },
    {
      "id": "term:bms",
      "type": "Term",
      "label": "Battery management system",
      "properties": {
        "id": "bms",
        "name": "Battery management system",
        "abbr": "BMS",
        "section": "topic-pack",
        "definition": "The electronics and software that keep a battery inside its safe window: measuring every cell voltage and many temperatures, estimating SOC and SOH, balancing cells, computing current limits, controlling the contactors and reporting over the vehicle network.",
        "related": [
          "state-of-charge",
          "cell-balancing",
          "state-of-power",
          "cell-supervision-circuit",
          "contactor",
          "can-bus"
        ],
        "lesson": "fundamentals/battery-basics/#cell-module-pack",
        "url": "https://lemonergy.com/learn/glossary/bms/",
        "mentions": [
          "state-of-health",
          "cell-voltage"
        ]
      }
    },
    {
      "id": "term:fuel-gauge",
      "type": "Term",
      "label": "Fuel gauge",
      "properties": {
        "id": "fuel-gauge",
        "name": "Fuel gauge",
        "aka": [
          "gas gauge"
        ],
        "section": "topic-pack",
        "definition": "The single chip in a phone, laptop or power tool that does the BMS’s state-estimation job for one or a few cells: coulomb counting corrected by an OCV model, with impedance tracking in better parts. It reports remaining capacity over SMBus or I²C.",
        "related": [
          "coulomb-counting",
          "state-of-charge",
          "smbus",
          "consumer-electronics",
          "afe"
        ],
        "url": "https://lemonergy.com/learn/glossary/fuel-gauge/",
        "mentions": [
          "coulomb",
          "impedance",
          "open-circuit-voltage",
          "bms"
        ]
      }
    },
    {
      "id": "term:consumer-electronics",
      "type": "Term",
      "label": "Consumer electronics",
      "properties": {
        "id": "consumer-electronics",
        "name": "Consumer electronics",
        "section": "topic-applications",
        "definition": "Phones, laptops, wearables and tools: the first mass market for lithium-ion and still the one that pays for the highest energy density. It favours pouch cells with LCO or high-nickel positives and silicon-blended negatives.",
        "related": [
          "lco",
          "pouch-cell",
          "fuel-gauge",
          "smbus",
          "iec-62133"
        ],
        "url": "https://lemonergy.com/learn/glossary/consumer-electronics/",
        "mentions": [
          "energy-density"
        ]
      }
    },
    {
      "id": "term:charger",
      "type": "Term",
      "label": "Charger",
      "properties": {
        "id": "charger",
        "name": "Charger",
        "section": "topic-charging",
        "definition": "The power electronics that convert mains or DC supply into the controlled current and voltage a battery needs. For lithium-ion it runs the CC-CV profile within the limits the BMS communicates, and stops rather than floats when the cell is full.",
        "related": [
          "cc-cv-charging",
          "bms",
          "onboard-charger",
          "dc-fast-charging"
        ],
        "url": "https://lemonergy.com/learn/glossary/charger/",
        "mentions": []
      }
    }
  ]
}