发明名称 |
DYNAMIC FREQUENCY SCALING OF A SWITCHED MODE POWER SUPPLY |
摘要 |
System(s) and method(s) are provided for dynamically scaling switching frequencies and clock sources of switched mode power supplies (SMPSs) in a mobile station. Switching frequency is scaled to an optimal value in response to at least one of (i) a change in mode of operation for wireless communication employed by the mobile station, an additional mode of operation is triggered, (ii) a change in operation conditions of a set of loads associated with functionality of the mobile is determined, or (iii) an LO spur set-off by a SMPS in the presence of an interference signal with a frequency splitting from an operational band that matches the SMPS frequency or at least one of its harmonics. Switching frequencies can be selected from a lookup table, or through an analysis of switching frequencies available to the mobile and operational criteria. A set of clock sources can provide an ensemble of switching frequencies. |
申请公布号 |
CA2720062(A1) |
申请公布日期 |
2009.10.08 |
申请号 |
CA20092720062 |
申请日期 |
2009.03.30 |
申请人 |
QUALCOMM INCORPORATED |
发明人 |
SAHA, JUHI;SHEN, CHING CHANG;PALS, TIMOTHY PAUL;LAU, SOON-SENG |
分类号 |
H04B15/04 |
主分类号 |
H04B15/04 |
代理机构 |
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地址 |
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