公开(公告)号：EP2359215A1

公开(公告)日：2011-08-24

申请号：EP09756490.0

申请日：2009-11-20

申请人： Endress + Hauser Process Solutions AG

发明人： FIEDLER, Marc

IPC分类号： G06F1/30 ,  H02J7/00

CPC分类号： G06F1/305 ,  G06F1/30

摘要： The invention relates to a field device for determining and/or monitoring a physical or chemical process parameter in automation technology, having at least one microcontroller (6), having a supply unit (2) having restricted capacity as the primary power supply and having a detection circuit (1) that signals a failure of the supply unit (2) to the microcontroller (6) by means of a detection signal early enough so that there is sufficient time to undertake appropriate security measures to prevent a loss of data, wherein the detection circuit (1) is designed such that a reference voltage required for the detection of a voltage drop in the supply unit (2) has a nearly constant offset to the supply voltage of the supply unit (2) and remains adapted to the supply voltage until the detection circuit (1) puts a detection signal through to the microcontroller (6) in the case of an erratic exceeding of the reference voltage or of an erratic voltage drop in the supply voltage.

公开(公告)号：EP2241897A2

公开(公告)日：2010-10-20

申请号：EP10250472.7

申请日：2010-03-12

申请人： Hamilton Sundstrand Corporation

发明人： Vandergrift, Adrian E.

IPC分类号： G01R19/165

CPC分类号： G01R19/16576 ,  G01R15/22 ,  G06F1/305

摘要： A voltage detection circuit (20;80) comprises a tap (21) to be connected to a positive line (22) and a return tap (74) to be connected to a return line (24) on a power supply. The potential difference between the positive line and the return line is the input line voltage. A scaling resistor network scales down the input line voltage to be indicative of a voltage on the input line. The scaled voltage is connected to an input for a comparator (33). A reference voltage is supplied to the comparator. The reference voltage supplied to the comparator is indicative of a threshold voltage at which an output of the circuit changes states. An output of the comparator communicates a signal to an optical isolation device (60) when the input line voltage is below the threshold voltage to turn the optical isolation device on and send a signal to an output of the optical isolation device. The optical isolation device (60) is not turned on if the input line voltage exceeds the threshold voltage. A DC power bus incorporating the voltage detection circuit (20;80), along with an aircraft electrical system incorporating the DC power bus are also disclosed and claimed.

摘要翻译： 电压检测电路（20; 80）包括要连接到正极线（22）的抽头（21）和要连接到电源上的返回线（24）的返回分接头（74）。 正极线和返回线之间的电位差是输入线电压。 缩放电阻网络将输入线电压缩小以表示输入线上的电压。 缩放电压连接到比较器（33）的输入端。 参考电压被提供给比较器。 提供给比较器的参考电压指示电路的输出改变状态的阈值电压。 当输入线电压低于阈值电压时，比较器的输出将信号传送到光隔离装置（60），以打开光隔离装置，并将信号发送到光隔离装置的输出端。 如果输入线路电压超过阈值电压，则光隔离器件（60）不会导通。 包括电压检测电路（20; 80）的直流电源总线以及结合有直流电源总线的飞机电气系统也被公开并要求保护。

公开(公告)号：EP1747474A1

公开(公告)日：2007-01-31

申请号：EP04752476.4

申请日：2004-05-18

申请人： Thomson Licensing

发明人： WITTMAN, Brian, Albert

IPC分类号： G01R19/165

CPC分类号： G06F1/305 ,  G01R19/16547 ,  G01R19/2513

摘要： A method and apparatus are disclosed for detecting disturbances in an alternating current (AC) supply. A method includes a step of indicating a relationship between supplied AC voltage and a threshold voltage for at least a portion of each cycle of the supplied AC voltage. A circuit for detecting disturbances in supplied alternating current (AC) is provided. The circuit includes a threshold detector coupled to a source of supplied AC. The threshold detector provides a signal indicating a relationship of the supplied AC levels to a threshold level for at least a portion of each cycle of the supplied AC.

公开(公告)号：EP1667056A1

公开(公告)日：2006-06-07

申请号：EP04787633.9

申请日：2004-09-06

申请人： SHARP KABUSHIKI KAISHA

发明人： MAMBA, Osamu ,  FUKUSAKI, Megumi

IPC分类号： G06K19/07 ,  G06F1/26 ,  H04M1/02 ,  H02J17/00

CPC分类号： G06K19/0723 ,  G06F1/26 ,  G06F1/305 ,  G06K19/07 ,  G06K19/0705 ,  G06K19/0707 ,  G06K19/0712 ,  G06K19/07758 ,  H01Q1/22 ,  H01Q1/242 ,  H02J17/00 ,  H02J50/10

摘要： A non-contact IC system 1 is mounted within the casing of a mobile telephone 100 and it includes: an antenna coil 11; an IC module 12 for receiving power and communication information via radio waves received by the antenna coil 11; a central arithmetic processing unit 13 for controlling the entire system and controlling drive power supply to the IC module 12; a regulator 14 for providing drive power to the IC module 12; a voltage detection circuit 15 for detecting the power supplied via the antenna coil 11; a battery 16; a bus 17; and a switch 18. The central arithmetic processing unit 13 controls the drive power supply to the IC module 12 in accordance with the result of detection of power supplied via the antenna coil 11 and the communication state of the IC module 12.

摘要翻译： 非接触式IC系统1安装在移动电话机100的壳体内，它包括：天线线圈11; 用于经由天线线圈11接收的无线电波接收电力和通信信息的IC模块12; 用于控制整个系统并控制对IC模块12的驱动电力供应的中央运算处理单元13; 用于向IC模块12提供驱动电力的调节器14; 电压检测电路15，用于检测通过天线线圈11供电的电力; 电池16; 一辆公共汽车17; 以及开关18.中央运算处理单元13根据通过天线线圈11提供的电力的检测结果和IC模块12的通信状况来控制对IC模块12的驱动电力供应。

公开(公告)号：EP1579556A1

公开(公告)日：2005-09-28

申请号：EP03814853.2

申请日：2003-12-18

申请人： INTEL CORPORATION

发明人： NGUYEN, Don ,  WAIZMAN, Alex

IPC分类号： H02M1/00

CPC分类号： H02M3/158 ,  G06F1/305

摘要： Methods and systems of providing power to a central processing unit (CPU) provide for enhanced surge protection during CPU current consumption going from high current to low current consumption. In one approach, a circuit as a power output stage with an output node, and a controller circuit coupled to the power output stage. The controller circuit selectively switches the power output stage into a current ramp down mode based on detection of a voltage surge at the output node. The power output stage has an associated current ramp down rate. The CPU is coupled to the output node and a surge notification input of the power output stage, where the power output stage accelerates the current ramp down based on a notification signal from the CPU for a duration proportional to the change in CPU current consumption from high to low current consumption.

公开(公告)号：EP1416381A1

公开(公告)日：2004-05-06

申请号：EP03023262.3

申请日：2003-10-14

申请人： MICROSOFT CORPORATION

发明人： Westerinen, William J. ,  Anderson, Jason M. ,  Marshall, Allen ,  Pierce, Tony D.

IPC分类号： G06F11/14 ,  G06F1/30

CPC分类号： G06F1/305 ,  G06F1/30 ,  Y10T307/625

摘要： A mechanism is provided for a personal computer to preserve user and system state data in the event of an AC power failure when the computer is in a standby state. When the AC power failure occurs, a switchover circuit connects a rechargeable energy storage medium, such as a rechargeable battery, to the power supply of the computer for powering components of computer, and the computer is awaken. A critical battery alarm is then issued to trigger the operating system of the computer to perform a transition into a hibernation state, during which the state data of the computer are persistently stored. The energy storage medium is disconnected from the power supply after the computer system has entered hibernation.

摘要翻译： 一个关键的电池警报发出触发所述计算机的操作系统，当使用电池电源来执行过渡计算机进入休眠状态。 计算机的状态数据在休眠状态的计算机过渡，afterwhich电池从电源断开期间被持久地存储。 因此独立claimsoft包括用于保存计算机的状态数据上的交流运行的方法。

公开(公告)号：EP0713169B1

公开(公告)日：2001-09-26

申请号：EP95117906.8

申请日：1995-11-14

申请人： SUN MICROSYSTEMS, INC.

发明人： Bauer, Robert M. ,  Ng, Wah Kang

IPC分类号： G06F1/26 ,  G06F1/32

CPC分类号： G06F1/305

公开(公告)号：EP0952512A4

公开(公告)日：2000-09-13

申请号：EP97919654

申请日：1997-04-23

申请人： CITIZEN WATCH CO LTD

发明人： YAMAGUCHI SHIZUO

IPC分类号： G06F1/30 ,  G06K19/07 ,  G06F1/26 ,  G06F1/28

CPC分类号： G06K19/07 ,  G06F1/305 ,  Y10T307/615 ,  Y10T307/625 ,  Y10T307/729

摘要： A voltage obtained by dividing a voltage supplied from an external power source (101) by means of resistors (108 and 109) is supplied to the gate of a first FET (107) interposed between two built-in batteries (103 and 104) connected in series. When a voltage higher than a prescribed level is supplied from the power source (101), not only the first FET (107) but also a second FET (110) provided between the batteries (103 and 104) and a load (113) are disconnected so that the voltage from the power source (101) only can be supplied to the load (113).

公开(公告)号：EP0910884A4

公开(公告)日：2000-05-03

申请号：EP97932536

申请日：1997-07-08

申请人： FORCE COMPUTERS INC

发明人： BAUMANN JUERGEN ,  VADASZ ISTVAN

IPC分类号： G06F1/26 ,  G06F1/18 ,  G06F1/30 ,  G06F3/00 ,  G11C5/14 ,  H02J1/14 ,  H02J9/06 ,  H02J1/00 ,  G06F1/00 ,  G11C8/00 ,  H02H7/122 ,  H02J1/10 ,  H02J3/00

CPC分类号： G11C5/143 ,  G06F1/305 ,  H02J1/14 ,  H02J9/061 ,  Y10T307/615

摘要： In a computer system (10), which comprises a plurality of system components (12, 14, 16, 18), typically in the form of circuit card units, and a common power bus (20) for interconnecting the circuit card units, there are provided a main power supply (26), an auxiliary power supply (28) and control switches (MPS1-MPS2, APS1-APS4) on the power supplying rails (22, 24) for selectively activating and deactivating circuit elements on the system components (in the form of circuit cards) so that as cards are added or removed, the power can be carefully controlled. According to an insertion method of the invention, undesired disruption of power is prevented by proper sequential deactivation and activation of the power lines (34-37) from the main power supply (26) and the auxiliary power supply (28), both of which are for providing power to multiple card units simultaneously. A live remove method also prevents undesired power disturbances. The power control switches and portions of the switch control logic may reside in the removable portion of the system architectures or on the system backplane or in the power supply.

公开(公告)号：EP0895150A3

公开(公告)日：2000-01-05

申请号：EP98114300.1

申请日：1998-07-30

申请人： PITNEY BOWES INC.

发明人： Schoonmaker, Richard A. ,  Chen, Wei C. ,  Degroot-Thomas, Johanna ,  Naclerio, Edward

IPC分类号： G06F1/24

CPC分类号： G06F1/24 ,  G06F1/305

摘要： A power-down circuit includes a power-on reset circuit that determines whether the supplied power falls below a prescribed level and, in response, outputs a reset signal for at least a prescribed period of time. A power supply latching circuit is responsive to the power-on reset circuit for switching on a power supply switching circuit to supply power from a power supply when the reset signal is not output. A power-down shutdown circuit, preferably under software control, and a power cutoff circuit, may be coupled to the power supply latching circuit, or alternatively the power-on reset circuit, for shutting down the power supplied from the power supply.