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31. 发明申请

US20170187319A1 OVERCURRENT PROTECTION CIRCUIT 有权
公开(公告)号：US20170187319A1
公开(公告)日：2017-06-29
申请号：US15382768
申请日：2016-12-19
申请人： ANDEN CO., LTD , TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Kazunori OZAWA , Fukuo ISHIKAWA , Shinji OSHITA , Kenichi TAKAYOSHI
IPC分类号： H02P29/40 , H02H3/06 , H02H3/093
CPC分类号： H02H3/066 , H02H3/087 , H02H3/093 , H02H3/0935 , H02H3/16 , H02H3/202 , H02H3/207 , H02H3/243 , H02H3/247 , H02H5/041 , H02H7/1213
摘要： An overcurrent protection circuit includes a load drive portion that drives a load based on a power supply voltage; a wire that connects the load and the load drive portion; a current detection portion that detects a load current showing a value of a current flowing through the load; a voltage detection portion; and a controller that controls the load drive portion to control a drive of the load, the controller determining an addition-and-subtraction value, controlling the load drive portion to cut off the load current, and stopping driving the load to protect a protection target from an overcurrent. The controller subtracts the integration value based on an elapsed time after cutoff of the load current. The controller controls the load drive portion to again start to drive the load, and also calculates a post-correction integration value lower than a pre-correction integration value by correcting the pre-correction integration value.

32. 发明申请

US20170142795A1 A PHASE CONTROL DIMMER CIRCUIT WITH SHORT-CIRCUIT PROTECTION 有权
公开(公告)号：US20170142795A1
公开(公告)日：2017-05-18
申请号：US15313073
申请日：2015-05-20
申请人： GERARD LIGHTING HOLDINGS PTY LTD
发明人： James Vanderzon
IPC分类号： H05B33/08 , H02H3/093 , H02H3/02 , H05B37/02 , H02M1/08
CPC分类号： H05B33/0845 , H02H3/021 , H02H3/093 , H02M1/08 , H02M2001/0058 , H05B37/02 , H05B39/044 , Y02B20/146
摘要： A trailing edge phase control dimmer circuit for controlling alternating current (AC) power to a load with short-circuit protection, wherein a switching control circuit includes a zero-crossing detection circuit configured to detect zero crossings of the AC and to detect crossings of a first threshold value and a second threshold value of the rectified dimmer voltage, and wherein the zero-crossing detection circuit is further configured to initiate the switching circuit to commence one of the conduction periods when the rectified dimmer voltage crosses below the first threshold value and to initiate the switching circuit to prematurely terminate one of the conduction periods when the rectified dimmer voltage crosses above the second threshold value to provide short-circuit protection for the trailing edge phase control dimmer circuit.

33. 发明授权

US09620951B2 Overcurrent protection device and method of operating a power switch 有权
公开(公告)号：US09620951B2
公开(公告)日：2017-04-11
申请号：US13985887
申请日：2011-02-18
申请人： Vasily Alekseyevich Syngaevskiy , Laurent Guillot , Philippe Rosado , Denis Sergeevich Shuvalov , Alexander Petrovich Soldatov
发明人： Vasily Alekseyevich Syngaevskiy , Laurent Guillot , Philippe Rosado , Denis Sergeevich Shuvalov , Alexander Petrovich Soldatov
IPC分类号： H02H3/00 , H02H3/093 , H03K17/082
CPC分类号： H02H3/093 , H03K17/082
摘要： An overcurrent protection device comprises a maximum-allowed-current unit and a power switch. The maximum-allowed-current unit determines a maximum allowed current in real-time. The maximum allowed current is determined at least partially on an instantaneous level of a load voltage. The load voltage is a voltage across a load to be powered. The power switch is connectable with a switch input to a voltage supply and with a switch output to the load, for providing power to said load. The power switch has a conductive state and a nonconductive state, and is arranged to assume the nonconductive state in response to an indication that a current through the power switch is exceeding the maximum allowed current. A method of operating a power switch is also described.

34. 发明授权

US09608430B2 Battery circuit fault protection in uninterruptable power sources 有权
公开(公告)号：US09608430B2
公开(公告)日：2017-03-28
申请号：US13860977
申请日：2013-04-11
申请人： International Business Machines Corporation
发明人： Jiwu Duan , John C. Elliott , Dennis W. Fried , Steven M. Groff , Trung Le
IPC分类号： H02H3/00 , H02H3/087 , H02H7/18 , H02H3/02 , H02H3/093
CPC分类号： H02H3/087 , H02H3/025 , H02H3/093 , H02H7/18
摘要： A power system which includes a battery (or string of batteries) as well as a preemptive fuse driver, PFD, system. The PFD protection system reliably protects circuits that could be damaged by long term fault currents. More specifically, the PFD protection system includes a sensor and a controller as well as a controlled switch. The controller includes a PFD control module which allows protection to be tuned specifically to the source and load characteristics.

35. 发明授权

US09489026B2 Selective event reaction processing in power control 有权
标题翻译：功率控制中的选择性事件反应处理
公开(公告)号：US09489026B2
公开(公告)日：2016-11-08
申请号：US14540117
申请日：2014-11-13
申请人： Electronic Systems Protection, Inc.
发明人： Robert A. Dawley
IPC分类号： G06F1/26 , G06F1/30 , H02H3/00 , H02H3/093 , H02H3/20
CPC分类号： G06F1/30 , H02H3/006 , H02H3/093 , H02H3/207
摘要： A reaction mode is selected through a user interface from a plurality of reaction modes that includes a fast reaction mode, by which each of a plurality of values assigned to a process variable over time are individually evaluated in an event decision that asserts an occurrence of a power event. The reaction modes also include a slow reaction mode by which none of the values assigned to the process variable over time are individually evaluated in the event decision. Measurements of a signal monitored by a power controller are assigned to the process variable as its values. The event decision evaluates the process variable values against an event boundary in accordance with the selected reaction mode. A transition between conducting and non-conducting states in a switch circuit is compelled in response to the occurrence of the power event as determined from the event decision.
摘要翻译：通过用户界面从多个反应模式中选择反应模式，所述反应模式包括快速反应模式，通过该快速反应模式，分配给过程变量的多个值中的每个值被分别评估为确定发生电力事件。反应模式还包括缓慢的反应模式，通过该模式，在事件决定中不分别评估分配给过程变量的值。由功率控制器监测的信号的测量值分配给过程变量作为其值。事件决定根据所选择的反应模式根据事件边界来评估过程变量值。响应于从事件判定确定的功率事件的发生，迫使开关电路中的导通状态和非导通状态之间的转变。

36. 发明授权

US09385617B2 Overcurrent protection circuit for a switching power supply apparatus 有权
标题翻译：开关电源装置的过电流保护电路
公开(公告)号：US09385617B2
公开(公告)日：2016-07-05
申请号：US14480998
申请日：2014-09-09
申请人： Murata Manufacturing Co., Ltd.
发明人： Tatsuya Hosotani , Naoki Yamaguchi
IPC分类号： H02M3/335 , H02H3/093 , H02M1/32 , H02M1/36 , H02H3/08 , H02M1/00
CPC分类号： H02M3/33546 , H02H3/093 , H02M1/32 , H02M1/36 , H02M3/33507 , H02M2001/0058 , Y02B70/1491
摘要： In a switching power supply apparatus, when it is detected at time t1 that a voltage Vis has exceeded a first threshold Vth1, a timer counting a period of time T1 is started, and the number times the input voltage Vis does not exceed Vth1 is started to be counted. When the timer expires before the count reaches a predetermined number, a first overcurrent protection operation is performed. When it is detected at time t2 that Vis has exceeded a second threshold Vth2, a second overcurrent protection operation is immediately performed. As a result, appropriate overcurrent protection is performed in accordance with the operating state of a load.
摘要翻译：在开关电源装置中，当在时间t1检测到电压Vis已经超过第一阈值Vth1时，开始计时一段时间T1的定时器，并且开始输入电压Vis不超过Vth1的次数要算当定时器在计数达到预定数量之前到期时，执行第一过电流保护操作。当在时间t2检测到Vis已经超过第二阈值Vth2时，立即执行第二过电流保护操作。结果，根据负载的工作状态进行适当的过电流保护。

37. 发明申请

US20160181785A1 DELAY CIRCUIT FOR CIRCUIT INTERRUPTING DEVICE 有权
标题翻译：电路中断装置的延迟电路
公开(公告)号：US20160181785A1
公开(公告)日：2016-06-23
申请号：US14577164
申请日：2014-12-19
申请人： Hubbell Incorporated
发明人： Stephen Paul Simonin
IPC分类号： H02H3/093
CPC分类号： H02H3/335
摘要： A circuit interrupting device that includes a line conductor, a load conductor, an interrupting device, a delay circuit, and a fault detection circuit. The interrupting device disconnects the line conductor from the load conductor when the circuit interrupting device is in a tripped condition. The delay circuit includes a first switch, a second switch, and a third switch, and delays the disconnecting of the line conductor from the load conductor. The fault detection circuit detects a fault condition and generates a fault detection signal when the fault condition is detected. The fault detection circuit provides the fault detection signal to the first switch to trigger the first switch, and the delay circuit delays the triggering of the second switch and the third switch. After an amount of time has elapsed, the second switch and the third switch are triggered to place the circuit interrupting device in the tripped condition.
摘要翻译：一种电路中断装置，包括线路导体，负载导体，中断装置，延迟电路和故障检测电路。当电路中断装置处于跳闸状态时，中断装置将线路导体与负载导体断开。延迟电路包括第一开关，第二开关和第三开关，并且延迟线路导体与负载导体的断开。故障检测电路检测到故障状态，并在检测到故障状态时产生故障检测信号。故障检测电路向第一开关提供故障检测信号以触发第一开关，并且延迟电路延迟第二开关和第三开关的触发。经过一段时间后，触发第二开关和第三开关使电路中断装置处于跳闸状态。

38. 发明授权

US09350158B2 Over-current protection circuit and pulse width modulator having the same 有权
标题翻译：过流保护电路和具有相同的脉宽调制器
公开(公告)号：US09350158B2
公开(公告)日：2016-05-24
申请号：US14318625
申请日：2014-06-28
申请人： ANPEC ELECTRONICS CORPORATION
发明人： Chih-Yuan Chen , Hsiang-Chung Chang
IPC分类号： H02H3/093 , H02H7/12
CPC分类号： H02H3/0935 , H02H7/1213 , H02M1/08 , H02M1/32 , H02M3/157 , H03K17/0822
摘要： An over-current protection circuit and a pulse width modulator having the same are provided. The pulse width module includes a high-side switch, a low-side switch, and a driving module. The driving module controls the high-side switch and the low-side switch according to a set signal and a reset signal periodically to adjust an inductive current flowing through the high-side switch and the low-side switch. When inductive current is the overcurrent during the minimum on time of the high-side switch, the over-current protection circuit turns off the high-side switch in a predefined time to decrease the inductive current continuously, so that the average current of the inductive current does not become too high to damage the pulse width module.
摘要翻译：提供了一种过电流保护电路和具有该过流保护电路的脉宽调制器。脉冲宽度模块包括高侧开关，低侧开关和驱动模块。驱动模块周期性地根据设定信号和复位信号控制高侧开关和低侧开关，以调节流经高侧开关和低侧开关的感应电流。当感应电流是高侧开关的最小导通时间内的过电流时，过电流保护电路在预定时间内关断高侧开关，以连续降低感应电流，使感应电流的平均电流电流不会变得太高，无法损坏脉冲宽度模块。

39. 发明申请

US20150311692A1 DRIVE PROTECTION CIRCUIT, SEMICONDUCTOR MODULE, AND AUTOMOBILE 有权
标题翻译：驱动保护电路，半导体模块和汽车
公开(公告)号：US20150311692A1
公开(公告)日：2015-10-29
申请号：US14650541
申请日：2012-12-21
申请人： Mitsubishi Electric Corporation
发明人： Kazuaki HIYAMA
IPC分类号： H02H3/093
CPC分类号： H02H3/093 , H02M1/08 , H02M1/32 , H03K17/0828 , H03K17/166 , H03K17/168
摘要： It is an object of the present invention to provide a technology capable of reliably suppressing a surge voltage even in a case where noise having a small pulse width is generated. A drive protection circuit that drives and protects a switching element includes a gate driving circuit that drives the switching element in response to a gate driving signal and an overcurrent protection circuit that operates a soft cutoff circuit upon an overcurrent of the switching element, the soft cutoff circuit causing the switching element to transition from ON to OFF at a switching speed slower than that of the gate driving circuit. In the drive protection circuit, in a case where a pulse width of ON of the gate driving signal is less than or equal to a response time of the overcurrent protection circuit, the drive protection circuit operates the soft cutoff circuit to cause the switching element to transition from ON to OFF, regardless of the overcurrent.
摘要翻译：本发明的目的是提供即使在产生具有较小脉冲宽度的噪声的情况下能够可靠地抑制浪涌电压的技术。驱动和保护开关元件的驱动保护电路包括门驱动电路，其响应于栅极驱动信号驱动开关元件，以及过电流保护电路，其在开关元件的过电流时操作软断路电路，软断路器使得开关元件以比栅极驱动电路的开关速度慢的开关速度从导通切换到断开。在驱动保护电路中，在栅极驱动信号的ON的脉冲宽度小于或等于过电流保护电路的响应时间的情况下，驱动保护电路操作软断开电路，使开关元件从ON转换到OFF，不管过电流。

40. 发明授权

US09166393B2 Driver circuit and television set using the same 有权
标题翻译：驱动电路和电视机使用相同
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。

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