公开(公告)号：EP2511791A1

公开(公告)日：2012-10-17

申请号：EP11368016.9

申请日：2011-04-13

申请人： Dialog Semiconductor GmbH

发明人： Nikolov, Ludmil ,  Calisto, Carlos

IPC分类号： G06F1/30

CPC分类号： H02J9/061 ,  G06F1/30 ,  H02J9/04 ,  H02J9/06 ,  Y10T307/344 ,  Y10T307/615 ,  Y10T307/625

摘要： Circuits and methods providing a electronic power supply applicable to any dual supply rail systems, which require a smooth and uninterrupted output supply and a replica power path and autonomous mode of operation from the system power supply are disclosed. In a preferred embodiment of the invention the power supply is applied to a real time clock. An Innovative Replica Power Path concept and circuit implementation ensures the smooth and uninterrupted transfer of power from one input source to the other. The circuit features a Latched Supply Comparator that guarantees the commutation to the Replica Power Path only happens after the voltage is settled. Zero power consumption from the back-up energy source is achieved in the presence of an alternative higher voltage source. The generated RTC supply voltage does not suffer from abrupt changes when the voltage level of the main system power source (battery or charger) is connected or disconnected. The invention allows for maximum utilization of the energy left in the main battery, thus extending the life of the lower capacity backup battery/super-cap.

摘要翻译： 电路和方法提供适用于任何双电源轨系统中的电子电源，这需要从系统电源的平滑和不间断电源输出和副本功率路径和操作的自主模式是游离缺失盘。 在本发明的优选实施例的电源被施加到一个实时时钟。 一个创新的副本电源路径概念和电路实现确保从一个输入源功率的光滑且无间断转移到另一个。 该电路的特点，锁定电源比较没保障减刑到副本Power Path的只有电压结算后会发生。 从备用能量源零功率消耗在可替换的更高电压源的存在下实现的。 当主系统电源（电池或充电器）的电压电平被连接或断开所产生的RTC电源电压没有从突然变化受到影响。 本发明允许留在主电池的能量的最大利用率，从而延长了低容量备用电池/超盖的寿命。

公开(公告)号：EP2498162B1

公开(公告)日：2014-04-30

申请号：EP11368007.8

申请日：2011-03-07

申请人： Dialog Semiconductor GmbH

发明人： Nikolov, Ludmil ,  Calisto, Carlos

IPC分类号： G05F3/24

CPC分类号： G05F3/242

公开(公告)号：EP2511791B1

公开(公告)日：2018-06-06

申请号：EP11368016.9

申请日：2011-04-13

申请人： Dialog Semiconductor GmbH

发明人： Nikolov, Ludmil ,  Calisto, Carlos

IPC分类号： G06F1/30

CPC分类号： H02J9/061 ,  G06F1/30 ,  H02J9/04 ,  H02J9/06 ,  Y10T307/344 ,  Y10T307/615 ,  Y10T307/625

摘要： Circuits and methods providing a electronic power supply applicable to any dual supply rail systems, which require a smooth and uninterrupted output supply and a replica power path and autonomous mode of operation from the system power supply are disclosed. In a preferred embodiment of the invention the power supply is applied to a real time clock. An Innovative Replica Power Path concept and circuit implementation ensures the smooth and uninterrupted transfer of power from one input source to the other. The circuit features a Latched Supply Comparator that guarantees the commutation to the Replica Power Path only happens after the voltage is settled. Zero power consumption from the back-up energy source is achieved in the presence of an alternative higher voltage source. The generated RTC supply voltage does not suffer from abrupt changes when the voltage level of the main system power source (battery or charger) is connected or disconnected. The invention allows for maximum utilization of the energy left in the main battery, thus extending the life of the lower capacity backup battery/super-cap.

公开(公告)号：EP2498162A1

公开(公告)日：2012-09-12

申请号：EP11368007.8

申请日：2011-03-07

申请人： Dialog Semiconductor GmbH

发明人： Nikolov, Ludmil ,  Calisto, Carlos

IPC分类号： G05F3/24

CPC分类号： G05F3/242

摘要： A self-biased reference circuit device (100) includes a first cascode current mirror (116), a second cascode current mirror (118), and a startup circuit (108). The first cascode current mirror (116) is capable to generate a first bias voltage (136) and a second bias voltage (140) in response to a first current and to generate a second current in response to the first and second bias voltages. The second cascode current mirror (118) is capable to generate a third bias voltage (164) in response to the second current, to generate a fourth bias voltage (168) in response to a third current, and to generate the first current in response to the third and fourth bias voltages. The startup circuit includes a first switch (188) and a second switch (196). The first switch (188) is capable to connect the first bias voltage (136) and fourth bias voltage (168) during startup. The second switch (196) is capable to connect the third bias voltage (164) and an inner drain-source connection (130) in the output stage of the first cascode current mirror (116) during startup.

摘要翻译： 自偏置参考电路装置（100）包括第一共源共栅电流镜（116），第二共源共栅电流镜（118）和启动电路（108）。 第一级联电流镜（116）能够响应于第一电流产生第一偏置电压（136）和第二偏置电压（140），并且响应于第一和第二偏置电压产生第二电流。 第二共源共栅电流镜（118）能够响应于第二电流产生第三偏置电压（164），以响应于第三电流产生第四偏置电压（168），并且响应于产生第一电流 到第三和第四偏置电压。 启动电路包括第一开关（188）和第二开关（196）。 第一开关（188）能够在启动期间连接第一偏置电压（136）和第四偏置电压（168）。 第二开关（196）能够在启动期间连接第一共源共栅电流镜（116）的输出级中的第三偏置电压（164）和内部漏极 - 源极连接（130）。