公开(公告)号：US06621676B2

公开(公告)日：2003-09-16

申请号：US10020057

申请日：2001-10-30

申请人： E. Lewis Barton ,  Charles R. Headrick

发明人： E. Lewis Barton ,  Charles R. Headrick

IPC分类号： H02H902

CPC分类号： B41J2/0451 ,  B41J2/04541 ,  B41J2/04543 ,  B41J2/0458

摘要： An apparatus and method of use opposes a short circuit failure mode in a printer having a printhead controller circuit driving an address bus connected to two or more printheads. A failure protection circuit associates one resistor group with each address line within the address bus that extends into at least two printheads. In particular, one address line resistor is placed in series between the address lead extending from a head driver IC within the printhead controller circuit and each printhead into which the address line extends. Where an address line shorts, the associated address line resistor protects the head driver IC from the short, allowing it to control the voltage potential of that address line in any printhead that has not failed. The user is then able to identify and replace the non-functioning printhead.

摘要翻译： 一种使用的装置和方法在具有打印头控制器电路驱动连接到两个或更多个打印头的地址总线的打印机中与短路故障模式相反。 故障保护电路将一个电阻组与地址总线中延伸至少两个打印头的每个地址线相关联。 特别地，一个地址线电阻串联放置在从打印头控制器电路内的头驱动器IC和地址线延伸的每个打印头延伸的地址引线之间。 在地址线短路的情况下，相关的地址线电阻器保护头驱动器IC免于短路，从而允许其控制任何未失效的任何打印头中该地址线的电压。 用户然后能够识别和更换不起作用的打印头。

公开(公告)号：US06483684B2

公开(公告)日：2002-11-19

申请号：US09725985

申请日：2000-11-29

申请人： Yoshihiro Isobe

发明人： Yoshihiro Isobe

IPC分类号： H02H902

CPC分类号： G01R31/26 ,  B29C66/71 ,  B29K2027/12 ,  B29K2027/18 ,  G05F1/10 ,  H02H7/10 ,  H02H9/02 ,  H03L5/00

摘要： In the current limiting circuit, which is provided with: the D/A converter 2A to output the voltage signal to supply the power source onto the load 11; reversal amplifier circuit to amplify the voltage signal; capacitor 10 to absorb the fluctuation of the power source supplied onto the load 11; operational amplifier 4B to set the amplification factor of the reversal amplifier circuit; transistor 5; and resistor 3E, the current detection circuit 7 detects the current value to be inputted into the load 11, and according to the detected current value, calculates the voltage at the current detection position, and the CPU 1 sets the predetermined voltage, the comparing circuit 8 compares the setting voltage value to the calculated voltage value, and according to the comparison result, by ON/OFF-controlling the switch 9, the setting of the amplification factor of the reversal amplifier is changed.

摘要翻译： 在限流电路中设置有：D / A转换器2A，用于输出电压信号以将电源提供给负载11; 反相放大电路放大电压信号; 电容器10，用于吸收供给到负载11上的电源的波动; 运算放大器4B来设置反相放大器电路的放大系数; 晶体管5; 和电阻器3E，电流检测电路7检测要输入到负载11的电流值，并且根据检测到的电流值，计算当前检测位置处的电压，并且CPU 1设定预定电压，比较电路 8将设定电压值与计算出的电压值进行比较，根据比较结果，通过对开关9进行ON / OFF控制，改变反转放大器的放大系数的设定。

公开(公告)号：US06650523B1

公开(公告)日：2003-11-18

申请号：US10069287

申请日：2002-02-25

申请人： Manfred Kleemeier ,  Gerald Lehner ,  Reinhard Schmid

发明人： Manfred Kleemeier ,  Gerald Lehner ,  Reinhard Schmid

IPC分类号： H02H902

CPC分类号： H02H3/33

摘要： Two detection systems are provided for a protective device, in particular an FI protective device, having a core balance transformer whose secondary winding is followed by a tripping relay for operating a switching mechanism, which switches a conductor network. In this case, a first detection system carries out the tripping function for fault currents at a fault current frequency below a changeover frequency. The second detection system carries out the tripping function for fault currents above the changeover frequency. The changeover frequency is in this case preferably not less than 1 kHz.

摘要翻译： 提供两个检测系统用于保护装置，特别是FI保护装置，其具有铁芯平衡变压器，其次级绕组之后是用于操作切换导体网络的开关机构的跳闸继电器。 在这种情况下，第一检测系统在低于转换频率的故障电流频率下执行故障电流的跳闸功能。 第二个检测系统对切换频率以上的故障电流进行跳闸功能。 在这种情况下，转换频率优选不小于1kHz。

公开(公告)号：US06538864B2

公开(公告)日：2003-03-25

申请号：US09977617

申请日：2001-10-15

申请人： Thomas Müllner

发明人： Thomas Müllner

IPC分类号： H02H902

CPC分类号： H02H9/001 ,  H02H3/247 ,  H02H11/002 ,  H02H11/006 ,  Y10S323/908

摘要： The protective circuit for an electronic device is located between a DC source (UV) and the circuit voltage input of the device (G). The protective circuit comprises the serial connection of a diode (DV) and a limiting resistor (RV). The series connected diode (DV) and the limiting resistor (RV) are connected and parallel with a control switch (S). A circuit voltage (UB, UA) of the device (G) is connected to a voltage monitoring element (W) which emits a switch signal (S) which closes the switch (S) when a determined minimum value of the circuit voltage (UB) is reached.

摘要翻译： 用于电子设备的保护电路位于DC源（UV）和设备（G）的电路电压输入之间。 保护电路包括二极管（DV）和限流电阻（RV）的串联连接。 串联二极管（DV）和限流电阻（RV）与控制开关（S）并联。 装置（G）的电路电压（UB，UA）连接到电压监视元件（W），该电压监测元件（W）发出在确定的电路电压（UB）的最小值时闭合开关（S）的开关信号 ） 到达了。

公开(公告)号：US06760206B2

公开(公告)日：2004-07-06

申请号：US09809012

申请日：2001-03-16

申请人： Ross S. Daharsh ,  Daniel Schreiber ,  Paul N. Stoving ,  Dan G. Marginean

发明人： Ross S. Daharsh ,  Daniel Schreiber ,  Paul N. Stoving ,  Dan G. Marginean

IPC分类号： H02H902

CPC分类号： H01H33/027 ,  H01F38/30

摘要： An electrical switchgear device includes a conductor, a base, and a current sensor positioned to detect current in the conductor and attached to the base using a support element. The device also includes an apparatus mounted to the base to interrupt current through the conductor when a signal from the current sensor indicates a predetermined condition. A housing positioned on the base encapsulates the current sensor, the support element, the current interrupting apparatus, and a portion of the conductor.

摘要翻译： 电开关装置包括导体，基座和电流传感器，定位成用于检测导体中的电流并使用支撑元件附接到基座。 当来自电流传感器的信号指示预定条件时，该装置还包括安装到基座的装置，以中断通过导体的电流。 定位在基座上的壳体封装电流传感器，支撑元件，电流中断装置和导体的一部分。

公开(公告)号：US06661631B1

公开(公告)日：2003-12-09

申请号：US09658540

申请日：2000-09-09

申请人： James Chester Meador ,  Giovanni Gozzini ,  Marco Sabatini

发明人： James Chester Meador ,  Giovanni Gozzini ,  Marco Sabatini

IPC分类号： H02H902

CPC分类号： G06K9/00013

摘要： Current drawn by the fingerprint sensor subject to electrostatic discharge events not fully dissipated by a pad ring is monitored. Upon detection of an overcurrent (e.g., an increase in the current drawn by approximately an order of magnitude) indicating that a latchup condition has occurred, power is removed from the sensor, together with all inputs to the sensor, until the latchup condition is cleared. If a processor or controller is employed by the sensor, the processor or controller is concurrently reset since a firmware crash may be induced by the latchup condition. If a parallel port or other communications connection is employed by the sensor, the overcurrent signal is employed to directly disconnect power and input signals to the sensor.

摘要翻译： 监测由不受垫圈完全耗散的静电放电事件的指纹传感器所画的电流。 当检测到指示发生闩锁状态的过电流（例如，大约一个数量级的电流的增加）时，与传感器的所有输入一起将功率从传感器移除，直到闭锁状态被清除 。 如果传感器采用处理器或控制器，则处理器或控制器同时复位，因为可能由闭锁状态引起固件崩溃。 如果传感器采用并行端口或其他通信连接，则采用过流信号直接断开电源和向传感器输入信号。

公开(公告)号：US06330141B1

公开(公告)日：2001-12-11

申请号：US09592305

申请日：2000-06-13

申请人： Robert Tracy Elms

发明人： Robert Tracy Elms

IPC分类号： H02H902

CPC分类号： H02H3/0935 ,  H02H7/30

摘要： An electronic protective relay emulates an electromechanical protective relay so that operation of the two types of relays can be coordinated in providing protection in an electric power distribution system. The electronic protective relay incorporates a digital processor which increments a variable delay tally as an inverse current function and a fixed delay tally by a corresponding proportionate amount. During each running of the routine, only the smaller of the two tallies is increased so that they are forced to track one another. When both tallies reach a trip value, a trip signal is generated. The processor also applied a reset function when the measured current is below a pickup value. In accordance with the preferred reset feature, the variable delay tally is reduced using an inverse current function and the fixed delay is reduced by the same amount.

摘要翻译： 电子保护继电器模拟机电保护继电器，使得两种类型的继电器的工作能够协调在配电系统中提供保护。 电子保护继电器包括数字处理器，该数字处理器将可变延迟计数作为反向电流功能和固定延迟计数增加相应的比例量。 在每个程序的运行过程中，只有较小的两个计数器被增加，使得它们被迫彼此跟踪。 当两个计数器达到跳闸值时，产生跳闸信号。 当测量电流低于拾取值时，处理器也应用复位功能。 根据优选的复位特征，使用逆电流功能减小可变延迟计数，并且固定延迟减少相同的量。

公开(公告)号：US06323445B1

公开(公告)日：2001-11-27

申请号：US09561215

申请日：2000-04-28

申请人： Dawson Yee

发明人： Dawson Yee

IPC分类号： H02H902

CPC分类号： H01H13/702 ,  H01H2239/008

摘要： A membrane switch structure providing electrostatic discharge (ESD) protection has three layers of insulating material, including two outer layers containing on their inside opposing surfaces printed conductive circuit patterns which may be selectively brought into electrical contact with each other through contact apertures provided in an intermediate insulting layer. An ESD protection circuit is provided in close proximity to at least one of the two outer layers, e.g., by printing the pattern on a backside of one of the outer layers in the same manner that printing of the circuit pattern is carried out. The ESD protection circuit pattern replicates, at least generally, all or a portion of the layout of the conductive circuit patterns. The ESD protection circuit can be efficiently fabricated and offers effective protection of the membrane switches from ESD events that can cause device operation problems in, for example, computer keyboards.

摘要翻译： 提供静电放电（ESD）保护的薄膜开关结构具有三层绝缘材料，包括两个外层，其内部相对表面上包含印刷的导电电路图案，该导电电路图形可通过设置在中间体中的接触孔而被选择性地彼此电接触 侮辱层 提供了ESD保护电路，其紧邻至少两个外层中的至少一个，例如通过以与进行电路图案的打印相同的方式在外层之一的背面上印刷图案。 ESD保护电路图案至少大体上复制导电电路图案的全部或一部分布局。 可以有效地制造ESD保护电路，并且可以有效地保护薄膜开关免受可能导致例如计算机键盘的设备操作问题的ESD事件的影响。

公开(公告)号：US06804101B2

公开(公告)日：2004-10-12

申请号：US09682997

申请日：2001-11-06

申请人： Michael S. Tignor ,  Patrick Salas ,  Craig B. Williams ,  Michael B. Bradley

发明人： Michael S. Tignor ,  Patrick Salas ,  Craig B. Williams ,  Michael B. Bradley

IPC分类号： H02H902

CPC分类号： H02H3/006

摘要： A method and apparatus for rejection of an inappropriate rating plug in an electronic trip unit for a circuit breaker including: a microprocessor programmed to determine an overcurrent condition of the circuit breaker; a nonvolatile memory in operable communication with the microprocessor; the rating plug releasably engaged with the microprocessor, the rating plug includes an identification register; wherein the microprocessor reads the identification register, the identification register includes an identification number; wherein the microprocessor accesses one of a plurality of programs in the nonvolatile memory based on the identification number; and wherein the one of a plurality of programs instructs said microprocessor to perform a validation of said rating plug for operation with said microprocessor.

摘要翻译： 一种用于拒绝用于断路器的电子跳闸单元中不适当的额定值插头的方法和装置，包括：被编程为确定断路器的过电流状况的微处理器; 与微处理器可操作地通信的非易失性存储器; 所述额定值插头可释放地与所述微处理器接合，所述额定值插头包括识别寄存器; 其中所述微处理器读取所述识别寄存器，所述识别寄存器包括标识号; 其中所述微处理器基于所述识别号码访问所述非易失性存储器中的多个程序之一; 并且其中所述多个程序中的一个程序指示所述微处理器执行用于与所述微处理器操作的所述额定值插头的确认。

公开(公告)号：US06690559B2

公开(公告)日：2004-02-10

申请号：US09872351

申请日：2001-06-01

申请人： Shinichi Yoshida

发明人： Shinichi Yoshida

IPC分类号： H02H902

CPC分类号： H02J7/0031 ,  H02J2007/0037 ,  H02J2007/0039 ,  H02J2007/004

摘要： There is provided a charge/discharge type power supply that includes a MOS transistor (normally called “four-terminal MOS transistor”) of which a source, a drain, a gate and a body are separated from each other as a switching element that controls both of the charge operation and the discharge operation, and provides a charge/discharge control circuit with a function of controlling the charge/discharge operation in accordance with a voltage of a secondary battery, a function of detecting a voltage that varies in accordance with a current that flows in the switching elements to control the charge/discharge operation, and a function of recognizing whether a charger or a load is connected to an external connection terminal to control the charge/discharge operation; wherein one signal line is used for controlling the on/off operation of the switching element, and both of the charge operation and the discharge operation can be controlled without any diode.

摘要翻译： 提供了一种充电/放电型电源，其包括源极，漏极，栅极和主体彼此分离的MOS晶体管（通常称为“四端子MOS晶体管”）作为控制的开关元件 充电操作和放电操作两者，并且提供具有根据二次电池的电压来控制充电/放电操作的功能的充放电控制电路，检测根据二次电池变化的电压的功能 在开关元件中流动以控制充放电操作的电流，以及识别充电器或负载是否连接到外部连接端子以控制充电/放电操作的功能; 其中一个信号线用于控制开关元件的导通/截止操作，并且可以在没有二极管的情况下控制充电操作和放电操作两者。