公开(公告)号：US09166393B2

公开(公告)日：2015-10-20

申请号：US13938401

申请日：2013-07-10

申请人： Rohm Co., Ltd.

发明人： Shinji Kawata

IPC分类号： H02H3/093 ,  H03K17/082 ,  G09G3/36

CPC分类号： H02H3/0935 ,  G09G3/3674 ,  G09G2330/00 ,  H03K17/0822

摘要： A driver circuit includes: a first transistor connected between a line of first voltage and an output terminal; a first overcurrent detector configured to output a first signal when overcurrent flows into the first transistor; a first control unit configured to turn on and off the first transistor at a predetermined period and turn off the first transistor when the first signal is output from the first overcurrent detector; and a counter configured to count the number of times by which the first signal is output from the first overcurrent detector within a predetermined time interval, and to output a shut-down signal to stop an operation of the driver circuit as a value of the count reaches a predetermined value of equal to or more than 2.

摘要翻译： 驱动电路包括：连接在第一电压线与输出端之间的第一晶体管; 第一过电流检测器，被配置为当过电流流入第一晶体管时输出第一信号; 第一控制单元，被配置为以预定周期接通和断开第一晶体管，并且当从第一过电流检测器输出第一信号时，关闭第一晶体管; 以及计数器，被配置为在预定时间间隔内对从第一过电流检测器输出第一信号的次数进行计数，并且输出关闭信号以将驱动器电路的操作停止为计数值 达到等于或大于2的预定值。

公开(公告)号：US09112353B2

公开(公告)日：2015-08-18

申请号：US13402808

申请日：2012-02-22

申请人： Jung Chul Gong ,  Hwan Cho

发明人： Jung Chul Gong ,  Hwan Cho

IPC分类号： H02H9/02 ,  H02H3/093 ,  H02H3/027 ,  H02M1/32

CPC分类号： H02H3/093 ,  H02H3/027 ,  H02M1/32

摘要： Disclosed herein is a power supply device. The power supply device includes a conversion unit converting an applied voltage into a predetermined level, a switching unit performing an opening operation or a closing operation to control a current flowing in the conversion unit, a sensing unit sensing an occurrence of overcurrent when a voltage applied to the switching unit is equal to or larger than a reference voltage set in advance, and a control unit performing a protection operation when the overcurrent is sensed again within a protection time set in advance after a predetermined time is delayed from the time at which the overcurrent is sensed, so that malfunction due to noise is prevented.

摘要翻译： 这里公开了电源装置。 电源装置包括将施加的电压转换为预定电平的转换单元，执行打开操作或闭合操作以控制在转换单元中流动的电流的开关单元;感测单元，其感测当施加的电压时发生过电流 切换单元等于或大于预先设定的参考电压，以及控制单元，当在预定时间之后预先设定的保护时间内再次检测到过电流时，执行保护动作，该预定时间从 感测到过电流，从而防止由于噪声引起的故障。

公开(公告)号：US20150137618A1

公开(公告)日：2015-05-21

申请号：US14085378

申请日：2013-11-20

申请人： NOKIA CORPORATION

发明人： Kristian Mikael Vaajala ,  Markus Antti Tapio Aaltonen ,  Kimmo Samuel Valo

IPC分类号： H02H3/093 ,  H02H7/18

CPC分类号： H02H3/0935 ,  G06F1/206 ,  H01M10/425 ,  H01M10/44 ,  H02H7/18 ,  H02J7/0029 ,  H02J7/0083 ,  H02J7/025 ,  H02J50/20 ,  H02J2007/0039 ,  Y10T307/766

摘要： Methods and apparatuses, including computer program code are disclosed herein that provide adaptive battery protection. A method includes disabling a timer, when a current drawn by a battery-powered device from a battery is less than or equal to a lower current threshold. When the timer is disabled, the battery may remain connected to the battery-powered device. The method further includes enabling the timer when the current drawn from the battery is greater than the lower current threshold and less than an extended current threshold. When the timer is enabled, the timer may allow the battery to remain connected to the battery-powered device until the timer expires. The method further includes disconnecting the battery when the timer expires or when the current drawn from the battery exceeds the extended current threshold.

摘要翻译： 本文公开了提供自适应电池保护的方法和装置，包括计算机程序代码。 一种方法包括当由电池供电的电池从电池吸取的电流小于或等于较低的电流阈值时禁用定时器。 当定时器被禁用时，电池可能会保持连接到电池供电的设备。 该方法还包括当从电池抽取的电流大于低电流阈值并小于扩展电流阈值时启用定时器。 当定时器使能时，定时器可能允许电池保持连接到电池供电的设备，直到定时器到期。 该方法还包括当定时器期满时或当从电池抽出的电流超过扩展电流阈值时断开电池。

公开(公告)号：US20130114176A1

公开(公告)日：2013-05-09

申请号：US13695464

申请日：2011-05-10

申请人： Jean Marmonier

发明人： Jean Marmonier

IPC分类号： H02H3/093

CPC分类号： H01H47/002 ,  H02H7/222

摘要： A protection device is to be associated in an electrical circuit (3) with a current-breaker device (20) including at least one pair (2) of contacts. The protection device includes a measuring device (1.1) for detecting a fault in the electrical circuit, at least one pair (6) of trigger contacts adapted to assume a closed or open position and to energize a coil for operating the pair (2) of contacts of the current-breaker device (20), and a control device (1.2) for commanding closing the pair (6) of trigger contacts in the event of detecting a fault, launching a time-delay and opening the pair of trigger contacts in the event of disappearance of the fault at the end of the time-delay, and barring opening pending operator intervention if the fault persists at the end of the time-delay.

摘要翻译： 保护装置将与包括至少一对（2）触点的断路器装置（20）连接在电路（3）中。 保护装置包括用于检测电路中的故障的测量装置（1.1），适于呈现闭合或打开位置的至少一对触发触点（6），并且为线圈供电以操作该对（2）的一对 断路器装置（20）的触点和控制装置（1.2），用于在检测到故障的情况下指示关闭触发触点对（6），发出延时并打开一对触发触点 在延时结束时故障消失的情况，如果故障在延时结束时仍然存在，则禁止开启待机操作员干预。

公开(公告)号：US20120162841A1

公开(公告)日：2012-06-28

申请号：US13331430

申请日：2011-12-20

申请人： Xiao-Ming Duan ,  Ronald Chang

发明人： Xiao-Ming Duan ,  Ronald Chang

IPC分类号： H02H3/26 ,  H02H3/093

CPC分类号： H02H3/093 ,  H02H3/025

摘要： The present invention provides a protection circuit. The protection circuit includes an output stage circuit and a feedback unit that generates a first current. Under a first condition that the first current is one of currents larger than and equal to a rated current and the first condition remains for a first period, the feedback unit controls the output stage circuit to restrict the first current. Under a second condition that the first current is one of currents larger than and equal to a restriction current and the second condition remains for a second period, the feedback unit controls the output stage circuit to terminate the first current.

摘要翻译： 本发明提供一种保护电路。 保护电路包括产生第一电流的输出级电路和反馈单元。 在第一条件下，第一电流是大于等于额定电流的电流之一，第一条件保持第一周期，反馈单元控制输出级电路以限制第一电流。 在第一个电流是大于等于限制电流的电流之一，第二个条件保持第二个周期的第二个条件下，反馈单元控制输出级电路以终止第一个电流。

公开(公告)号：US20050162796A1

公开(公告)日：2005-07-28

申请号：US10507283

申请日：2003-03-08

申请人： Bernd Arenz ,  Wolfgaang Schwarz

发明人： Bernd Arenz ,  Wolfgaang Schwarz

IPC分类号： H02H3/00 ,  H02H3/05 ,  H02H3/093

CPC分类号： H02H3/006 ,  H02H3/05 ,  H02H3/0935

摘要： A circuit breaker includes current detectors, a microprocessor-controlled tripping device, and a bypass circuit that interacts with a watchdog circuit that monitors the proper functioning of the microprocessor. A switchable reference voltage is made available to the bypass circuit as a function of the momentary supply voltage. During short circuits, the bypass circuit, immediately upon being switched on, responds to very high limit current values, whereas after the switch-on phase, it already responds at moderately high limit current values.

摘要翻译： 断路器包括电流检测器，微处理器控制的跳闸装置和与监视微处理器正常功能的看门狗电路相互作用的旁路电路。 作为瞬时电源电压的函数，旁路电路可以提供可切换的参考电压。 在短路期间，旁路电路在接通时立即响应非常高的极限电流值，而在接通阶段之后，它已经以适度的高限电流值作出响应。

公开(公告)号：US6141197A

公开(公告)日：2000-10-31

申请号：US37689

申请日：1998-03-10

申请人： Edward E. Kim ,  John J. Dougherty ,  Esteban Santos ,  David Arnold ,  Richard E. Saunders ,  Ronald D. Ciarcia ,  James I. Smith ,  Richard A. Menelly

发明人： Edward E. Kim ,  John J. Dougherty ,  Esteban Santos ,  David Arnold ,  Richard E. Saunders ,  Ronald D. Ciarcia ,  James I. Smith ,  Richard A. Menelly

IPC分类号： H02H3/08 ,  G01R15/20 ,  H01H71/12 ,  H01H71/74 ,  H01H73/00 ,  H01H83/02 ,  H02H1/00 ,  H02H1/06 ,  H02H3/093 ,  H02H5/04 ,  H02H3/00

CPC分类号： H02H1/063 ,  H02H1/0015 ,  H01H2083/201 ,  H01H71/123 ,  H01H71/7409 ,  H02H3/093 ,  H02H5/04

摘要： A circuit interrupter of the type including an electronic trip unit for overcurrent determination includes a separate circuit to power the trip unit along with a Hall Effect or GMR Device to sense the current flow within the protected circuit. A removable option plug electrically interconnects with the trip unit to enable ground fault and arcing fault protection.

摘要翻译： 包括用于过电流确定的电子跳闸单元的类型的电路断路器包括单独的电路，用于向霍尔效应或GMR设备供电跳闸单元以感测受保护电路内的电流。 可拆卸的选件插头与跳闸单元电气互连，以实现接地故障和电弧故障保护。

公开(公告)号：US5994790A

公开(公告)日：1999-11-30

申请号：US53764

申请日：1998-04-02

申请人： Yoshikazu Nagashima ,  Kaoru Kurita ,  Yukihiko Umeda

发明人： Yoshikazu Nagashima ,  Kaoru Kurita ,  Yukihiko Umeda

IPC分类号： G01R19/00 ,  B60R16/02 ,  G01R19/165 ,  H02H3/087 ,  H02H3/093 ,  H02H5/04 ,  H02H3/08

CPC分类号： H02H3/087 ,  H02H3/0935 ,  H02H5/041 ,  H02H5/044 ,  Y10T307/406 ,  Y10T307/865

摘要： A method of detecting an abnormal electric current in a vehicle to detect passage of an abnormal electric current through an electric wire for establishing the connection between a load to which electric power is supplied and a power source, the method of detecting an abnormal electric current in a vehicle comprising the steps of: (a) detecting values of electric currents which pass through the electric wire at predetermined sampling intervals; (b) counting the number of times in a unit detection period that a sampled electric current having a value larger than a predetermined value is detected and determining passage of an abnormal electric current through the electric wire when the number of counts is larger than a first number of times; and (c) counting the number of times that a sampled electric current having a value larger than the predetermined value is detected in a unit detection period after the unit detection period in terms of time in a case where the number of counts is smaller than the first number of times and except for zero and determining passage of an abnormal electric current through the electric wire when the number of counts is larger than a second number of times.

摘要翻译： 一种检测车辆中的异常电流的方法，用于检测通过用于建立供给电力的负载与电源之间的连接的电线的异常电流的通过，检测异常电流的方法 一种车辆，包括以下步骤：（a）以预定的采样间隔检测通过电线的电流值; （b）对单位检测期间的次数进行计数，检测出具有大于预定值的值的采样电流，并且当计数数大于第一个时，确定通过电线的异常电流的通过 次数; 以及（c）计数在单位检测期间内的单位检测期间中，在计数次数小于所述单位检测期间的时间内，检测出具有比规定值大的取样电流的次数 第一次，除了零，并且当计数数量大于第二次数时，确定通过电线的异常电流的通过。

公开(公告)号：US5926010A

公开(公告)日：1999-07-20

申请号：US5797

申请日：1998-01-12

申请人： Kiyoshi Hosokawa ,  Nobuhiro Imaizumi

发明人： Kiyoshi Hosokawa ,  Nobuhiro Imaizumi

IPC分类号： B60R16/02 ,  H02H1/04 ,  H02H3/08 ,  H02H3/087 ,  H02H3/093 ,  G05F1/10

CPC分类号： H02H3/087 ,  H02H1/043 ,  Y10S323/908

摘要： An overcurrent breaking circuit includes a semiconductor switch inserted in a main current path; a current detector circuit for detecting a current passing through the main current path; a logic circuit for switching off the semiconductor switch when the current detector circuit detects a current exceeding a set value for an overcurrent level; a first unit for prohibiting the logic circuit from performing an operation for switching off the semiconductor switch even if the current detector circuit detects a current exceeding the set value for a first short time period immediately after the semiconductor switch is switched from a breaking state to a conductive state; and a second unit for prohibiting the logic circuit from performing an operation for switching off the semiconductor switch for a second short time period even if the current detector circuit detects a current exceeding the set value when the semiconductor switch remains in a conductive state.

摘要翻译： 过电流断路电路包括：插入主电流路径的半导体开关; 用于检测通过所述主电流路径的电流的电流检测器电路; 当电流检测器电路检测到超过设定值的电流为过电流电平时，切断半导体开关的逻辑电路; 第一单元，用于禁止逻辑电路执行关闭半导体开关的操作，即使电流检测器电路在半导体开关从断开状态切换到第一短时间段之后的第一短时间段内检测到超过设定值的电流 导电状态; 以及第二单元，用于在半导体开关保持导通状态时，即使电流检测器电路检测到超过设定值的电流，也禁止逻辑电路在第二短时间段内执行关闭半导体开关的操作。

公开(公告)号：US5719732A

公开(公告)日：1998-02-17

申请号：US767346

申请日：1996-12-16

申请人： Tsuneo Nagahama ,  Tatsuya Mizobata

发明人： Tsuneo Nagahama ,  Tatsuya Mizobata

IPC分类号： H02H3/08 ,  H02H3/093 ,  H02H7/00 ,  H02H7/085 ,  H02P29/02 ,  H02H5/04

CPC分类号： H02H7/0855

摘要： An overload protecting device which includes a comparator 11 to which an output voltage V10 in proportion to the current flowing through a motor 5 and a start detecting reference voltage E11 are inputted, and a comparator 13 to which the output voltage V10 and an overload detecting reference voltage E13 are inputted, a starting timer 14 for clocking a first period of time T1 lapsing since the output of a signal from the comparator 11, an overload timer 14 for clocking a second period of time T2, which is shorter than the first period of time T1, lapsing since the output of a signal from the comparator 13, a transient finish detecting circuit 300 for outputting a signal V33 representing a finish of transient of the motor 5 finish based on signal outputted from the comparators 11 and 13, and an overload trip relay 18 for cutting off a motor current to the motor 5 through the logical operation of the signal V33 representing motor transient finish or an output signal V12 from the starting timer 12, with an output signal V14 from the overload timer 14. The driving mechanism driven by the motor 5 is properly protected from the overload.

摘要翻译： 一种过载保护装置，包括比较器11，输入电压V10与流过马达5的电流成比例的输出电压V10和起动检测基准电压E11;比较器13，输出电压V10和过载检测基准 输入电压E13，用于对从比较器11输出的信号输出的第一时间段T1进行计时的起动定时器14，用于计时第二时间段T2的过载定时器14，该过载定时器14比第一时间段T2短 时间T1，从比较器13的信号输出开始，用于根据从比较器11和13输出的信号输出代表电动机5的瞬变结束的信号V33的瞬时完成检测电路300和过载 跳闸继电器18，用于通过表示电动机瞬时完成的信号V33的逻辑操作或者起动的输出信号V12将电动机电流切断到电动机5 定时器12，具有来自过载定时器14的输出信号V14。由电动机5驱动的驱动机构被适当地防止过载。