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
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申请号: EP08833765.4申请日: 2008-09-24
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公开(公告)号: EP2193598A1公开(公告)日: 2010-06-09
- 发明人: MOK, Ken Tsz Kin , GAGNE, 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
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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