-
公开(公告)号：US08513920B2
公开(公告)日：2013-08-20
申请号：US12384188
申请日：2009-04-01
IPC分类号： H02J7/00
CPC分类号： H02M3/158 , H02J7/0052 , H02J2007/0059 , Y02B40/90
摘要： Circuits and methods for a switched power converter providing charge power for at least one battery and at the same time delivering current to operate an electronic device, wherein the converter is enabled to operate out of current limit mode, for the maximum possible range of system load requirements, have been achieved. The input current of the power converter is measured within each cycle-by-cycle, i.e. within each cycle of an external clock reference and the charge current is reduced if the input current exceeds a defined portion, e.g. 80% of the maximum allowable input current. The power converter may only enter current limited operation after the charge current has been already reduced to zero. Operating out of current limit mode ensures a maximum efficiency of the converter, maximize the current deliverable to a given load and minimizes subharmonics in the output current and voltage, thereby minimizing interference with other system component.
摘要翻译： 用于为至少一个电池提供充电电力并且同时传送电流以操作电子设备的开关电力转换器的电路和方法，其中所述转换器能够在限流模式下操作，以实现系统负载的最大可能范围 要求已经实现。 功率转换器的输入电流在逐周期内，即在外部时钟参考的每个周期内测量，并且如果输入电流超过限定部分，则充电电流减小。 80％的最大允许输入电流。 功率转换器只能在充电电流已经降到零之后才进入电流限制运行。 超出电流限制模式的运行确保了转换器的最大效率，最大限度地提高给定负载的电流，并最大限度地减少输出电流和电压中的次谐波，从而最大限度地减少与其他系统组件的干扰。
-
公开(公告)号：US20120319484A1
公开(公告)日：2012-12-20
申请号：US13135159
申请日：2011-06-27
IPC分类号： H02J1/00
CPC分类号： H02J1/10 , H02M1/10 , H02M3/156 , Y10T307/549 , Y10T307/696
摘要： Circuits and methods for current limited DC-to-DC converters having multiple power sources have been disclosed. One of multiple power sources is activated by a multiplexer. A current sensing unit, deployed close to the multiplexer, detects if an input current to the DC-to-DC converter has reached a current limit. In case the current limit is reached a signal is sent to the DC-to-DC converter to reduce the current drawn the DC-to-DC converter.
摘要翻译： 已经公开了具有多个电源的电流限制DC-DC转换器的电路和方法。 多个电源中的一个被多路复用器激活。 在多路复用器附近部署的电流检测单元检测到DC-DC转换器的输入电流是否达到电流限制。 在达到电流限制的情况下，信号被发送到DC-DC转换器，以减少DC-DC转换器的电流。
-
公开(公告)号：US08937403B2
公开(公告)日：2015-01-20
申请号：US13135159
申请日：2011-06-27
CPC分类号： H02J1/10 , H02M1/10 , H02M3/156 , Y10T307/549 , Y10T307/696
摘要： Circuits and methods for current limited DC-to-DC converters having multiple power sources have been disclosed. One of multiple power sources is activated by a multiplexer. A current sensing unit, deployed close to the multiplexer, detects if an input current to the DC-to-DC converter has reached a current limit. In case the current limit is reached a signal is sent to the DC-to-DC converter to reduce the current drawn the DC-to-DC converter.
摘要翻译： 已经公开了具有多个电源的电流限制DC-DC转换器的电路和方法。 多个电源中的一个被多路复用器激活。 在多路复用器附近部署的电流检测单元检测到DC-DC转换器的输入电流是否达到电流限制。 在达到电流限制的情况下，信号被发送到DC-DC转换器，以减少DC-DC转换器的电流。
-
公开(公告)号：US08564273B2
公开(公告)日：2013-10-22
申请号：US13068634
申请日：2011-05-16
CPC分类号： H02M3/156
摘要： Circuits and methods for dynamic adjustment of the current limit of a power management unit to avoid unwanted automatic interruption of the power flow have been disclosed. The invention can be applied to switched and linear DC-to-DC converters. The power management unit is automatically adjusted to the output resistance of a power source (including interconnect resistance). The invention maximizes the time and hence the power transferred from a power management unit to the system (including the battery, in case of battery operated systems). The input current is reduced, thus increasing the input voltage in case of a high voltage drop across the internal resistance including interconnections between power source and power management unit.
摘要翻译： 已经公开了用于动态调整功率管理单元的电流限制以避免不必要的电力流的自动中断的电路和方法。 本发明可以应用于开关和线性DC-DC转换器。 电源管理单元自动调整为电源的输出电阻（包括互连电阻）。 本发明最大限度地延长了从电力管理单元传送到系统（包括电池，在电池供电系统的情况下）的时间，从而使电力最大化。 输入电流减小，从而在包括电源和电源管理单元之间的互连的内部电阻上的高压降的情况下增加输入电压。
-
公开(公告)号：US20120268094A1
公开(公告)日：2012-10-25
申请号：US13068634
申请日：2011-05-16
IPC分类号： G05F1/571
CPC分类号： H02M3/156
摘要： Circuits and methods for dynamic adjustment of the current limit of a power management unit to avoid unwanted automatic interruption of the power flow have been disclosed. The invention can be applied to switched and linear DC-to-DC converters. The power management unit is automatically adjusted to the output resistance of a power source (including interconnect resistance). The invention maximizes the time and hence the power transferred from a power management unit to the system (including the battery, in case of battery operated systems). The input current is reduced, thus increasing the input voltage in case of a high voltage drop across the internal resistance including interconnections between power source and power management unit.
摘要翻译： 已经公开了用于动态调整功率管理单元的电流限制以避免不必要的电力流的自动中断的电路和方法。 本发明可以应用于开关和线性DC-DC转换器。 电源管理单元自动调整为电源的输出电阻（包括互连电阻）。 本发明最大限度地延长了从电力管理单元传送到系统（包括电池，在电池供电系统的情况下）的时间，从而使电力最大化。 输入电流减小，从而在包括电源和电源管理单元之间的互连的内部电阻上的高压降的情况下增加输入电压。
-
公开(公告)号：US20110121801A1
公开(公告)日：2011-05-26
申请号：US12800846
申请日：2010-05-24
摘要： Circuits and methods for dynamic adjustment of the current limit of a power management unit to avoid unwanted automatic interruption of the power flow have been disclosed. The power management unit is automatically adjusted to the output resistance of a power source (including interconnect resistance). The invention maximizes the time and hence the power transferred from a power management unit to the system (including the battery, in case of battery operated systems). The input current is reduced thus increasing the input voltage in case of a high voltage drop across the internal resistance including interconnections between power source and power management unit.
摘要翻译： 已经公开了用于动态调整功率管理单元的电流限制以避免不必要的电力流的自动中断的电路和方法。 电源管理单元自动调整为电源的输出电阻（包括互连电阻）。 本发明最大限度地延长了从电力管理单元传送到系统（包括电池，在电池供电系统的情况下）的时间，从而使电力最大化。 输入电流减小，从而在包括电源和电源管理单元之间的互连的内部电阻上的高压降的情况下增加输入电压。
-
公开(公告)号：US08410764B2
公开(公告)日：2013-04-02
申请号：US12800846
申请日：2010-05-24
IPC分类号： G05F1/00
摘要： Circuits and methods for dynamic adjustment of the current limit of a power management unit to avoid unwanted automatic interruption of the power flow have been disclosed. The power management unit is automatically adjusted to the output resistance of a power source (including interconnect resistance). The invention maximizes the time and hence the power transferred from a power management unit to the system (including the battery, in case of battery operated systems). The input current is reduced thus increasing the input voltage in case of a high voltage drop across the internal resistance including interconnections between power source and power management unit.
摘要翻译： 已经公开了用于动态调整功率管理单元的电流限制以避免不必要的电力流的自动中断的电路和方法。 电源管理单元自动调整为电源的输出电阻（包括互连电阻）。 本发明最大限度地延长了从电力管理单元传送到系统（包括电池，在电池供电系统的情况下）的时间，从而使电力最大化。 输入电流减小，从而在包括电源和电源管理单元之间的互连的内部电阻上的高压降的情况下增加输入电压。
-
公开(公告)号：US20100237845A1
公开(公告)日：2010-09-23
申请号：US12384188
申请日：2009-04-01
IPC分类号： G05F5/00
CPC分类号： H02M3/158 , H02J7/0052 , H02J2007/0059 , Y02B40/90
摘要： Circuits and methods for a switched power converter providing charge power for at least one battery and at the same time delivering current to operate an electronic device, wherein the converter is enabled to operate out of current limit mode, for the maximum possible range of system load requirements, have been achieved. The input current of the power converter is measured within each cycle-by-cycle, i.e. within each cycle of an external clock reference and the charge current is reduced if the input current exceeds a defined portion, e.g. 80% of the maximum allowable input current. The power converter may only enter current limited operation after the charge current has been already reduced to zero. Operating out of current limit mode ensures a maximum efficiency of the converter, maximize the current deliverable to a given load and minimizes subharmonics in the output current and voltage, thereby minimizing interference with other system component.
摘要翻译： 用于为至少一个电池提供充电电力并且同时传送电流以操作电子设备的开关电力转换器的电路和方法，其中所述转换器能够在限流模式下操作，以实现系统负载的最大可能范围 要求已经实现。 功率转换器的输入电流在逐周期内，即在外部时钟参考的每个周期内测量，并且如果输入电流超过限定部分，则充电电流减小。 80％的最大允许输入电流。 功率转换器只能在充电电流已经降到零之后才进入电流限制运行。 超出电流限制模式的运行确保了转换器的最大效率，最大限度地提高给定负载的电流，并最大限度地减少输出电流和电压中的次谐波，从而最大限度地减少与其他系统组件的干扰。
-
公开(公告)号：US08796998B2
公开(公告)日：2014-08-05
申请号：US13068205
申请日：2011-05-05
CPC分类号： G01R31/3613 , G01R19/0092
摘要： Method and circuits for sensing a bidirectional current without requiring an external sense resistor are disclosed. In a preferred embodiment the invention is applied for fuel gauging of one or more batteries and comprises a charger/active diode, which can source current into the battery and sink current from the battery to supply a mobile electronic device. The invention can be applied to any other application requiring sensing of bidirectional currents. A regulated cascode forces a voltage drop over a power transistor and a sense transistor to be the same. A feedback current is measured by an ADC. The integration of these current measurements over time is equal to the actual charge of the battery.
摘要翻译： 公开了用于感测双向电流而不需要外部检测电阻器的方法和电路。 在优选实施例中，本发明应用于一个或多个电池的燃料测量，并且包括充电器/有源二极管，其可以将电流流入电池并从电池吸收电流以供应移动电子设备。 本发明可以应用于需要感测双向电流的任何其它应用。 调节共源共栅势必强制功率晶体管和感测晶体管上的电压降相同。 反馈电流由ADC测量。 随着时间的推移，这些电流测量的集成等于电池的实际充电量。
-
公开(公告)号：US20120268075A1
公开(公告)日：2012-10-25
申请号：US13068205
申请日：2011-05-05
IPC分类号： H02J7/04 , G01N27/416 , G01R19/00
CPC分类号： G01R31/3613 , G01R19/0092
摘要： Method and circuits for sensing a bidirectional current without requiring an external sense resistor are disclosed. In a preferred embodiment the invention is applied for fuel gauging of one or more batteries and comprises a charger/active diode, which can source current into the battery and sink current from the battery to supply a mobile electronic device. The invention can be applied to any other application requiring sensing of bidirectional currents. A regulated cascode forces a voltage drop over a power transistor and a sense transistor to be the same. A feedback current is measured by an ADC. The integration of these current measurements over time is equal to the actual charge of the battery.
摘要翻译： 公开了用于感测双向电流而不需要外部检测电阻器的方法和电路。 在优选实施例中，本发明应用于一个或多个电池的燃料测量，并且包括充电器/有源二极管，其可以将电流流入电池并从电池吸收电流以供应移动电子设备。 本发明可以应用于需要感测双向电流的任何其它应用。 调节共源共栅势必强制功率晶体管和感测晶体管上的电压降相同。 反馈电流由ADC测量。 随着时间的推移，这些电流测量的集成等于电池的实际充电量。
-
-
-
-
-
-
-
-
-
搜索结果
50 条记录 (耗时 0.018 秒)
