发明公开
EP2193598A1 SWITCH MODE POWER SUPPLY (SMPS) AND METHODS THEREOF 审中-公开
SCHALTNETZTEIL UND VERFAHRENDAFÜR

  • 专利标题: SWITCH MODE POWER SUPPLY (SMPS) AND METHODS THEREOF
  • 专利标题(中): SCHALTNETZTEIL UND VERFAHRENDAFÜR
  • 申请号: EP08833765.4
    申请日: 2008-09-24
  • 公开(公告)号: EP2193598A1
    公开(公告)日: 2010-06-09
  • 发明人: MOK, Ken Tsz KinGAGNE, Justin Joseph Rosen
  • 申请人: QUALCOMM Incorporated
  • 申请人地址: Attn: International IP Administration 5775 Morehouse Drive San Diego, California 92121-1714 US
  • 专利权人: QUALCOMM Incorporated
  • 当前专利权人: QUALCOMM Incorporated
  • 当前专利权人地址: Attn: International IP Administration 5775 Morehouse Drive San Diego, California 92121-1714 US
  • 代理机构: Catesby, Olivia Joanne
  • 优先权: US862044 20070926
  • 国际公布: WO2009042704 20090402
  • 主分类号: H02M3/157
  • IPC分类号: H02M3/157
SWITCH MODE POWER SUPPLY (SMPS) AND METHODS THEREOF
摘要:
Embodiments of the present invention are directed to switched-mode power supply (SMPS) circuits and methods thereof. The SMPS circuit receives information related to a future load change. For example, the information may be received at a decoder (e.g., a serial bus interface (SBI) decoder) from a microprocessor or microcontroller, such as a mobile station modem (MSM). The SMPS circuit may include an analog-to-digital converter configured to sample an output voltage of the SMPS circuit to determine a time when the future load change occurs. The SMPS circuit may further include a transient recovery circuit (TRC) for stabilizing the output voltage based on the received information when the future load change occurs. For example, the TRC calculates a duty cycle used to transition states of switches of the SMPS circuit to compensate for the future load change.
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