发明名称 Conserving power of a system on a chip using an alternate power source
摘要 A method for conversing battery power for a battery-optimized system-on-a-chip begins by sensing for presence of an alternate power source. The processing continues, when the presence of the alternate power source is detected, a first control loop of a first DC-to-DC converter is disabled and a second control loop of a second DC-to-DC converter is enabled to produce a supply voltage for the system-on-a-chip. The first DC-to-DC converter, when enabled, converts a battery voltage into a supply voltage and the second DC-to-DC converter, when enabled, converts voltage from the alternate power source into the supply voltage.
申请公布号 US7259480(B2) 申请公布日期 2007.08.21
申请号 US20030607948 申请日期 2003.06.27
申请人 SIGMATEL, INC. 发明人 MAY MARCUS W.
分类号 H02J1/00;H02J1/08;H02J7/00;H02M1/10 主分类号 H02J1/00
代理机构 代理人
主权项
地址