VR2R-0407_r1

VR2R-0407

① SA Source

• Source: 開啟完整 SA 文章
• Section: Compute Tray: Power Delivery
• Line hint: 338

Context Before

As the Strata board draws around 4800W of power (equivalent to the TDP of half a general server rack) versus Bianca at 3000W, it is necessary to deliver power to the board at a higher voltage.

Evidence

The benefit of moving 50VDC-12VDC conversion closer is to the reduce current and increase transmission efficiency.

Context After

96 Amps at 50V has 17x lower power loss than 400A at 12V due to the quadratic relationship between power loss and current.

② Atomic Claim

把 50VDC→12VDC conversion 移得更靠近負載，可降低 current 並提高 transmission efficiency。

• Epistemic Mode: ASSERTED
• Mapping Status: PARTIAL

③ Semantic Frame

{
  "frame_type": "CLAIM_ONLY",
  "qualifiers": {
    "condition_text": null,
    "numeric_mentions": [
      "50VDC",
      "12VDC"
    ],
    "temporal_mentions": []
  },
  "reason": "POWER_CONVERSION_STAGE_NOT_CANONICALIZED_IN_SOURCE_CLAIM",
  "statement": "moving 50VDC-to-12VDC conversion closer reduces current and improves transmission efficiency."
}

④ Canonical Entity Mapping

Role	Surface Label	Canonical Target
—	—	—

⑤ Human Review

請在 Properties 逐項確認：

• 原文 → Atomic Claim 是否忠實
• Atomic Claim → Semantic Frame 是否忠實
• Canonical Entity mapping 是否正確
• Epistemic mode 是否保留原文語氣
• 最後選擇 review_action

Review state

Markdown 內文不是正式 approval。只有 Apply bridge 寫入的 Decision Ledger event 才是正式決策。