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公开(公告)号:US20090309552A1
公开(公告)日:2009-12-17
申请号:US12543236
申请日:2009-08-18
申请人: Christoph H. Krah , Ronil Patel
发明人: Christoph H. Krah , Ronil Patel
IPC分类号: H02J7/04
摘要: An apparatus for switching from a first power supply to a second power supply. Such an apparatus may determine which of the first and second power supplies has a greater voltage, and may power a device from the power supply having the greater voltage or charge. A single boost converter may be used regardless of which power supply is providing power.
摘要翻译: 一种用于从第一电源切换到第二电源的装置。 这样的装置可以确定第一和第二电源中的哪一个具有更大的电压,并且可以从具有较大电压或电荷的电源为设备供电。 可以使用单个升压转换器,而不管哪个电源提供电力。
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公开(公告)号:US07852046B2
公开(公告)日:2010-12-14
申请号:US12543236
申请日:2009-08-18
申请人: Christoph H. Krah , Ronil Patel
发明人: Christoph H. Krah , Ronil Patel
摘要: An apparatus for switching from a first power supply to a second power supply. Such an apparatus may determine which of the first and second power supplies has a greater voltage, and may power a device from the power supply having the greater voltage or charge. A single boost converter may be used regardless of which power supply is providing power.
摘要翻译: 一种用于从第一电源切换到第二电源的装置。 这样的装置可以确定第一和第二电源中的哪一个具有更大的电压,并且可以从具有较大电压或电荷的电源为设备供电。 可以使用单个升压转换器,而不管哪个电源提供电力。
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公开(公告)号:US07598711B2
公开(公告)日:2009-10-06
申请号:US11286523
申请日:2005-11-23
申请人: Christoph H. Krah , Ronil Patel
发明人: Christoph H. Krah , Ronil Patel
摘要: An apparatus for switching from a first power supply to a second power supply. The embodiment may detect the charge or voltage of both the first and second power supply, and power a device from the power supply having the greatest voltage or charge. A single boost converter is used regardless of which power supply is providing power.
摘要翻译: 一种用于从第一电源切换到第二电源的装置。 该实施例可以检测第一和第二电源两者的电荷或电压,并且从具有最大电压或电荷的电源供电设备。 使用单个升压转换器,而不管哪个电源供电。
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公开(公告)号:US20070114968A1
公开(公告)日:2007-05-24
申请号:US11286523
申请日:2005-11-23
申请人: Christoph Krah , Ronil Patel
发明人: Christoph Krah , Ronil Patel
IPC分类号: H02J7/00
摘要: An apparatus for switching from a first power supply to a second power supply. The embodiment may detect the charge or voltage of both the first and second power supply, and power a device from the power supply having the greatest voltage or charge. A single boost converter is used regardless of which power supply is providing power.
摘要翻译: 一种用于从第一电源切换到第二电源的装置。 该实施例可以检测第一和第二电源两者的电荷或电压,并且从具有最大电压或电荷的电源供电设备。 使用单个升压转换器,而不管哪个电源供电。
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公开(公告)号:US20070019442A1
公开(公告)日:2007-01-25
申请号:US11188325
申请日:2005-07-25
申请人: Li Li , Ronil Patel
发明人: Li Li , Ronil Patel
IPC分类号: H02J1/00
CPC分类号: H02M3/1588 , H02J1/08 , H02J2001/008 , H02M1/14 , Y02B70/1466 , Y10T307/406 , Y10T307/625
摘要: Systems and techniques for performing power conversion operations in a portable device are used to convert an input voltage to a voltage at an output. The conversion operations use a two-stage conversion to convert the input voltage to a first voltage and to convert the first voltage to a second voltage. A switching frequency is altered with changes in the input voltage. The switching frequency is selected based on the input voltage level and/or to maintain a substantially consistent ripple at the output, which can correspond to the first voltage and/or the second voltage.
摘要翻译: 用于在便携式设备中进行功率转换操作的系统和技术用于将输入电压转换为输出端的电压。 转换操作使用两级转换将输入电压转换为第一电压并将第一电压转换为第二电压。 开关频率随着输入电压的变化而改变。 基于输入电压电平选择开关频率和/或在输出端保持基本一致的纹波,其可对应于第一电压和/或第二电压。
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