{
  "$type": "site.standard.document",
  "description": "A Factorized Power Architecture (\"FPA\") method and apparatus for supplying power to highly transient loads such as microprocessors includes a front end power regulator (\"PRM) which provides a controlled DC bus voltage which is converted to the desired load voltage using a DC voltage transformation…",
  "path": "/patents/1088275",
  "publishedAt": "2004-04-07T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02J1/102",
    "VLT CORP [US]"
  ],
  "textContent": "A Factorized Power Architecture (\"FPA\") method and apparatus for supplying power to highly transient loads such as microprocessors includes a front end power regulator (\"PRM) which provides a controlled DC bus voltage which is converted to the desired load voltage using a DC voltage transformation module (\"VTM\") at the point of load. The VTM converts the DC bus voltage to the DC voltage required by the load using a fixed transformation ratio K=Vout/Vin where Vin > Vout and with a low output resistance. The response time of the VTM, TVTM is less than the response time of the PRM, TPRM. A first capacitance, C1, across the load is made large enough to support the microprocessor current requirement within a time scale, T1, which is preferably greater than or equal to the characteristic open-loop response time of the VTM by itself, TVTM. A second capacitance, C2, at the input of the VTM is made large enough to support the microprocessor current requirement within a time scale, T2, which is preferably greater than or equal to the closed-loop response time of the front end power regulator, TPRM. Feedback may be provided from a feedback controller at the point of load to the front end or to upstream, on-board power regulator modules (\"PRMs\") to achieve precise regulation. The VTM may convert power bidirectionally to return power to the bus during a \"load dump.\" Energy storage at the input to the VTM is greater than energy storage at the load.",
  "title": "Power supply"
}