发明名称 |
BOOST CONVERTER TOPOLOGY FOR HIGH EFFICIENCY AND LOW BATTERY VOLTAGE SUPPORT |
摘要 |
A method and apparatus for a boost converter topology for low battery voltage support. In the method, an input voltage is boosted by closing first through third switches and then opening a fourth switch to charge a capacitor. The first and second switches are then opened. The voltage is then doubled by closing the third and fourth switches to discharge the first capacitor into a second capacitor and charging a third capacitor. A further embodiment provides an additional method for selectively boosting an input voltage to an electronic device. The method first characterizes the efficiency of a circuit, and then determines a crossover point for a ratio of output voltage to input voltage, and then enabling or disabling a voltage boost converter based on the crossover point. |
申请公布号 |
WO2014116823(A3) |
申请公布日期 |
2015.04.16 |
申请号 |
WO2014US12744 |
申请日期 |
2014.01.23 |
申请人 |
QUALCOMM INCORPORATED |
发明人 |
MEHTA, NARENDRA S;DHAR, SANDEEP CHAMAN;SUTTON, TODD R. |
分类号 |
H02M3/158 |
主分类号 |
H02M3/158 |
代理机构 |
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代理人 |
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地址 |
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