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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。
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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。
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公开(公告)号：US20050250557A1
公开(公告)日：2005-11-10
申请号：US10846414
申请日：2004-05-14
CPC分类号： G06F1/3203 , Y10T307/729
摘要： Novel power-management chips (PMCS) and a related method to increase the flexibility of power-management chips and to disburden a main controller of mobile electronic devices, such as e.g. a mobile phone, have been achieved. Key of the invention is to implement a microprocessor system on a power-management chip. This microprocessor, having a flash-memory and a RAM has either no or minimum interaction with a main controller of the mobile electronic device since the microprocessor on the PMC is controlling all power supply requirements of the mobile electronic device. The novel PMC is more flexible; since it is free programmable and customers can adapt their PMC more efficiently to the specific purposes of their application.
摘要翻译： 新型电源管理芯片（PMCS）和相关方法来增加电源管理芯片的灵活性，并且将移动电子设备的主控制器（例如， 手机已经实现。 本发明的关键是在电源管理芯片上实现微处理器系统。 具有闪速存储器和RAM的微处理器与移动电子设备的主控制器没有或最小的相互作用，因为PMC上的微处理器正在控制移动电子设备的所有电源需求。 小说PMC更灵活; 因为它是免费的可编程的，客户可以更有效地调整他们的PMC到其应用的具体目的。
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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。
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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。
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公开(公告)号：US20050127888A1
公开(公告)日：2005-06-16
申请号：US10751795
申请日：2004-01-05
申请人： Eric Marschalkowski , John Malcolm
发明人： Eric Marschalkowski , John Malcolm
CPC分类号： G01R19/0092 , H02M3/156 , H02M2001/0009
摘要： A circuit and a related method to sense the inductor current of CD/DC buck converters have been achieved. The inductor current is sensed by generation of a voltage drop across a fully integrated sense resistor. The voltage drop is proportional to the inductor current in the pass device by supplying a fraction of the inductor current out of a source-follower, which matches to the pass device. The source of said source-follower is connected to a sense-resistor that is connected to the same supply as the pass device. The current, which is needed to generate the voltage drop, is fed back into the inductor current minimizing therefore the efficiency loss. Mirroring, amplification and offset correction of the voltage drop across the sense-resistor is performed by using a single matching pair of source-follower, which is supplied by a current tracking the internal reference voltage and the process variations of the resistors.
摘要翻译： 已经实现了用于感测CD / DC降压转换器的电感电流的电路和相关方法。 通过在完全集成的检测电阻上产生电压降来感测电感电流。 通过从源极跟随器中提供一部分电感器电流，使其与通过器件匹配，电压降与通过器件中的电感器电流成比例。 所述源极跟随器的源极连接到与通过器件相同的电源连接的感测电阻器。 产生电压降所需的电流被反馈到电感器电流中，从而使效率损失最小化。 通过使用由跟踪内部参考电压的电流和电阻器的工艺变化提供的源匹配的一对匹配对来执行感测电阻两端的压降的镜像，放大和偏移校正。
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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。
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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。
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公开(公告)号：US06992473B2
公开(公告)日：2006-01-31
申请号：US10751795
申请日：2004-01-05
申请人： Eric Marschalkowski , John Malcolm
发明人： Eric Marschalkowski , John Malcolm
CPC分类号： G01R19/0092 , H02M3/156 , H02M2001/0009
摘要： A circuit and a related method to sense the inductor current of CD/DC buck converters have been achieved. The inductor current is sensed by generation of a voltage drop across a fully integrated sense resistor. The voltage drop is proportional to the inductor current in the pass device by supplying a fraction of the inductor current out of a source-follower, which matches to the pass device. The source of said source-follower is connected to a sense-resistor that is connected to the same supply as the pass device. The current, which is needed to generate the voltage drop, is fed back into the inductor current minimizing therefore the efficiency loss. Mirroring, amplification and offset correction of the voltage drop across the sense-resistor is performed by using a single matching pair of source-follower, which is supplied by a current tracking the internal reference voltage and the process variations of the resistors.
摘要翻译： 已经实现了用于感测CD / DC降压转换器的电感电流的电路和相关方法。 通过在完全集成的检测电阻上产生电压降来感测电感电流。 通过从源极跟随器中提供一部分电感器电流，使其与通过器件匹配，电压降与通过器件中的电感器电流成比例。 所述源极跟随器的源极连接到与通过器件相同的电源连接的感测电阻器。 产生电压降所需的电流被反馈到电感器电流中，从而使效率损失最小化。 通过使用由跟踪内部参考电压的电流和电阻器的工艺变化提供的源匹配的一对匹配对来执行感测电阻两端的压降的镜像，放大和偏移校正。
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公开(公告)号：US06847237B2
公开(公告)日：2005-01-25
申请号：US10613600
申请日：2003-07-03
IPC分类号： H02H11/00 , H03K17/06 , H03K17/687 , H03B1/00
CPC分类号： H02H11/003 , H03K17/063 , H03K17/6871
摘要： A motor bridge driver interface, implemented in an ASIC using cost-efficient CMOS technology, is designed to control four external MOS power transistors in a H-bridge configuration for DC-motor driving to achieve accurate and fast switching. Main components of the -interface are comprising a charge pump for generating the control voltage for the high-side N-channel MOS transistors, high-side (HSD) circuits, low-side (LSD) circuits and a complex digital interface for supplying the control signals in a programmable timing scheme. A “strong” charge pump is used to realize a simple CMOS switch to steer the output to the high-side transistors of said H-bridge. The motor bridge is connected to the battery supply by an additional N-channel MOS transistor to implement a reverse supply protection.
摘要翻译： 在ASIC中使用经济高效的CMOS技术实现的电机桥驱动器接口被设计为控制用于DC电机驱动的H桥配置中的四个外部MOS功率晶体管，以实现准确和快速的切换。 接口的主要部件包括用于产生用于高侧N沟道MOS晶体管，高侧（HSD）电路，低侧（LSD）电路和复数数字接口的控制电压的电荷泵，用于提供 控制信号在可编程定时方案。 使用“强”电荷泵来实现简单的CMOS开关以将输出转向所述H桥的高侧晶体管。 马达桥通过附加的N沟道MOS晶体管连接到电池电源，以实现反向电源保护。
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