公开(公告)号：US06665162B2

公开(公告)日：2003-12-16

申请号：US09820931

申请日：2001-03-30

Applicant: Kenzo Nishida ,  Norihisa Nihanda

Inventor： Kenzo Nishida ,  Norihisa Nihanda

IPC: H02H318

CPC classification number: F16D27/112 ,  B60K17/35 ,  B60W2050/021 ,  F16D48/064 ,  F16D2027/008 ,  F16D2500/10475 ,  F16D2500/3022 ,  F16D2500/30404 ,  F16D2500/5108 ,  F16D2500/70404 ,  F16D2500/7042 ,  F16D2500/7061

Abstract: An apparatus for determining a failure of an electromagnetic clutch, which is capable of properly determining whether or not a failure, a typically a layer short-circuit, has occurred due to a change in a resistance value of a solenoid coil of the electromagnetic clutch. The electromagnetic clutch is configured such that the engagement force thereof is varied according to an amount of current flowing through the coil. An output control value for control of the amount of current is calculated by feedback control such that an actual amount of current actually flowing through the coil becomes equal to a desired amount of current. A predetermined reference control value is stored which defines a standard for the output control value and has a standard relationship with respect to the amount of current. The actual amount of current is detected. The calculated output control value is compared with the predetermined reference control value corresponding to the detected actual amount of current. It is determined based on a result of the comparison by the comparison means whether or not the electromagnetic clutch has failed due to a change in a resistance value of the coil of the solenoid thereof.

Abstract translation: 一种用于确定电磁离合器的故障的装置，其能够适当地确定由于电磁离合器的螺线管线圈的电阻值的变化是否发生了故障，典型的层短路。 电磁离合器被构造成使得其接合力根据流过线圈的电流量而变化。 通过反馈控制来计算用于控制电流量的输出控制值，使得实际流过线圈的实际电流量等于期望的电流量。 存储预定的参考控制值，其定义输出控制值的标准，并且与电流量具有标准关系。 检测实际电流量。 将计算的输出控制值与对应于检测到的实际电流量的预定参考控制值进行比较。 基于比较装置的比较结果，确定电磁离合器是否由于其螺线管的线圈的电阻值的变化而失败。

公开(公告)号：US06639774B1

公开(公告)日：2003-10-28

申请号：US09601784

申请日：2000-11-20

Applicant: Hans-Peter Stroebele ,  Wolfgang Meissner ,  Uwe Guenther ,  Bernd Hilgenberg ,  Juergen Reinhardt

Inventor： Hans-Peter Stroebele ,  Wolfgang Meissner ,  Uwe Guenther ,  Bernd Hilgenberg ,  Juergen Reinhardt

IPC: H02H318

CPC classification number: H04L12/40013 ,  B60R16/0315 ,  H04L12/4135 ,  H04L2012/40215 ,  H04L2012/40273

Abstract: A two-wire bus system for connecting a plurality of users has at least one damping circuit for damping line resonances in the two-wire bus system with respect to a reference potential. The damping characteristic of the damping circuit is selected such that the damping only becomes operative above a preestablished reference voltage threshold1 value. In this manner, it is achieved that a useful signal is not weakened by the damping circuit, but rather resonance voltages are damped only above the threshold value. It is advantageous if each of the users of the bus system has assigned to it a damping circuit.

Abstract translation: 用于连接多个用户的双线总线系统具有至少一个阻尼电路，用于相对于参考电位阻尼两线总线系统中的线谐振。 选择阻尼电路的阻尼特性使得阻尼仅在预先建立的参考电压阈值1值之上工作。 以这种方式，实现了有用信号不被阻尼电路削弱，而是谐振电压仅被抑制在阈值以上。 总线系统的每个用户已经分配了阻尼电路是有利的。

公开(公告)号：US06577482B1

公开(公告)日：2003-06-10

申请号：US09830731

申请日：2001-07-31

Applicant: Harald Eisenhardt ,  Bernhard Rasch ,  Rolf Falliano

Inventor： Harald Eisenhardt ,  Bernhard Rasch ,  Rolf Falliano

IPC: H02H318

CPC classification number: H02H11/003 ,  H02H9/047

Abstract: A protective circuit for a series circuit of a power semiconductor and an inductive load, to which a freewheeling circuit of a freewheeling diode and a reverse polarity protection semiconductor switch connected in series is connected in parallel. The power semiconductor output stage may be switched on and off depending on a predetermined setpoint value with a pulse-width modulated control signal and the reverse polarity protection semiconductor switch may be made non-conducting via a charging pump when the polarity of the supply voltage is reversed. The destruction of components in the case of non-functioning of the freewheeling circuit may be avoided by monitoring a point in the freewheeling circuit of a freewheeling diode and a reverse polarity protection semiconductor switch or in the series circuit of load and power semiconductor output stage for a voltage or a current which appears if the freewheeling circuit is non-functioning, and by initiating the shut-off of the control of the power semiconductor output stage with this fault indicating voltage or current.

Abstract translation: 用于并联连接的续流二极管和反向极性保护半导体开关的续流电路的功率半导体和电感负载的串联电路的保护电路。 功率半导体输出级可以根据具有脉冲宽度调制控制信号的预定设定值被接通和断开，并且当电源电压的极性为 逆转 通过监视续流二极管和反极性保护半导体开关的续流电路中的点或负载和功率半导体输出级的串联电路，可以避免在续流电路不起作用的情况下的部件损坏 如果续流电路不起作用而出现的电压或电流，并且通过发出指示电压或电流的故障来启动功率半导体输出级的控制的切断。

公开(公告)号：US06574082B2

公开(公告)日：2003-06-03

申请号：US09973437

申请日：2001-10-09

Applicant: Edward Vitek

Inventor： Edward Vitek

IPC: H02H318

CPC classification number: H05K7/207

Abstract: Electronic equipment can be operated in an enclosure wherein the electronic equipment is powered by a DC power source including a rectifier that receives an AC power signal and a battery that provides backup when the AC power signal is interrupted. For example, a DC power signal generated by the DC power source and a temperature in the enclosure for the electronic equipment can be monitored. The DC power signal can be blocked from the electronic equipment in the enclosure when the DC power signal is less than a low voltage threshold for the battery or when the temperature in the enclosure is outside a range of first high and low temperature thresholds for operation of the electronic equipment. The DC power signal can be provided to the electronic equipment in the enclosure when the DC power signal is above the low voltage threshold for the battery and when the temperature in the enclosure is within the range of the first high and low temperature thresholds for operation of the electronic equipment. A temperature control fan can be operated when the DC power signal is above the low voltage threshold and the temperature is outside a range of second high and low temperature thresholds for operation of the fan. Operation of the temperature control fan can be blocked when the DC power signal is less than the low voltage threshold for the battery or when the temperature is within the range of the second high and low temperature thresholds for operation of the fan.

Abstract translation: 电子设备可以在外壳中操作，其中电子设备由包括接收AC电源信号的整流器的DC电源供电，以及当AC电源信号被中断时提供备用的电池。 例如，可以监视由DC电源产生的DC电力信号和用于电子设备的外壳中的温度。 当DC电源信号小于电池的低电压阈值时，或者当外壳中的温度超出第一高低温阈值范围时，直流电源信号可以从外壳中的电子设备中被阻挡，以便操作 电子设备。 当DC电力信号高于电池的低电压阈值时，当外壳中的温度在第一高温和低温阈值的范围内时，直流电源信号可以提供给外壳中的电子设备，以便操作 电子设备。 当直流电源信号高于低电压阈值并且温度超出风扇运行的第二高低温阈值范围时，可以操作温度控制风扇。 当直流电源信号小于电池的低电压阈值时，或当温度在风扇运行的第二高低温阈值范围内时，可能会阻止温度控制风扇的运行。

公开(公告)号：US06529356B2

公开(公告)日：2003-03-04

申请号：US09754304

申请日：2001-01-05

Applicant: Hsu-Yuan Chin ,  Wen-Chi Lin

Inventor： Hsu-Yuan Chin ,  Wen-Chi Lin

IPC: H02H318

CPC classification number: H02H11/003 ,  H01L27/0251 ,  H02H11/002 ,  H03K19/00315 ,  Y10T307/839

Abstract: A power polarity reversal protecting circuit for an integrated circuit includes a protecting transistor, PMOS components and NMOS components, wherein the protecting transistor is a protecting PMOS transistor or a protecting NMOS transistor. If the protecting transistor is the PMOS transistor, a gate and a source of the protecting PMOS transistor are respectively connected to ground and power. A drain and a substrate of the protecting PMOS transistor is connected to a substrate of the PMOS component. If the protecting transistor is the protecting NMOS transistor, a gate and a source of the protecting NMOS transistor are respectively connected to power and ground. A drain and a substrate of the protecting NMOS transistor is connected to a substrate of the NMOS component. When the power polarity is in reversal connection, the protecting transistors are terminated to prevent damage from the power polarity reversal connection.

Abstract translation: 用于集成电路的电源极性反转保护电路包括保护晶体管，PMOS组件和NMOS组件，其中保护晶体管是保护PMOS晶体管或保护NMOS晶体管。 如果保护晶体管是PMOS晶体管，则保护PMOS晶体管的栅极和源极分别连接到地和电源。 保护PMOS晶体管的漏极和衬底连接到PMOS部件的衬底。 如果保护晶体管是保护NMOS晶体管，则保护NMOS晶体管的栅极和源极分别连接到电源和地。 保护NMOS晶体管的漏极和衬底连接到NMOS部件的衬底。 当电源极性反向连接时，保护晶体管被终止，以防止从电源极性反转连接造成的损坏。

公开(公告)号：US06377428B1

公开(公告)日：2002-04-23

申请号：US09514182

申请日：2000-02-28

Applicant: Kazuyoshi Ogasawara

Inventor： Kazuyoshi Ogasawara

IPC: H02H318

CPC classification number: H03K17/0822 ,  H03K2017/0806

Abstract: A switching device includes a commanding device (813, Q51) which commands a driving of a load, a driving device (111) which outputs a drive signal in response to a drive command signal from the commanding device (813, Q51) and a first switching device (QA) inserted in a power supply circuit connecting a power supply (101) and the load (102). The first switching device (QA) is adapted to conduct in response to the drive signal and close the power supply circuit. A reference resistor (Rr1, Rr2) generates a reference voltage by receiving a current from the power supply, and a second switching device (QB, QC) is inserted in a shunt circuit connecting the power supply and the reference resistor. The second switching device (QB, QC) is adapted to conduct in response to the drive signal and close the shunt circuit. An abnormality determining device (CMP1, CMP2) determines an abnormality by comparing an output voltage from the first switching device (QA) and the reference voltage. A cutoff latch device 306, Q53) changes the drive command signal outputted to the driving device (111) into a stop command signal in response to an abnormality determination signal of the abnormality determining device (CMP1, CMP2). A monitoring device (811) monitors a state of the load (102) on the basis of a state of the command signal inputted to the driving device (111).

Abstract translation: 开关装置包括命令装置驱动的指令装置（813，Q51），响应来自指令装置（813，Q51）的驱动指令信号而输出驱动信号的驱动装置（111） 开关装置（QA），其插入连接电源（101）和负载（102）的电源电路中。 第一开关装置（QA）适于响应于驱动信号导通并闭合电源电路。 参考电阻器（Rr1，Rr2）通过从电源接收电流产生参考电压，并且第二开关装置（QB，QC）被插入到连接电源和参考电阻器的分流电路中。 第二开关装置（QB，QC）适于响应于驱动信号进行导通并闭合分流电路。 异常确定装置（CMP1，CMP2）通过比较来自第一开关装置（QA）的输出电压和参考电压来确定异常。 截止锁存装置306，Q53）响应于异常判定装置（CMP1，CMP2）的异常判定信号，将输出到驱动装置（111）的驱动指令信号变更为停止指令信号。 监视装置（811）基于输入到驱动装置（111）的指令信号的状态来监视负载（102）的状态。

公开(公告)号：US06330140B1

公开(公告)日：2001-12-11

申请号：US09126000

申请日：1999-05-11

Applicant: Russell Wilson-Jones ,  John Michael Ironside

Inventor： Russell Wilson-Jones ,  John Michael Ironside

IPC: H02H318

CPC classification number: G01R31/42 ,  G01R31/007 ,  G01R31/2829

Abstract: A circuit is provided for testing a drive stage of an actuator, such as a motor of an EPAS system. A power supply circuit comprises a contact for supplying normal drive stage current and a resistor for supplying reduced drive stage current before the normal current is supplied. A measuring circuit measures a drive stage electrical parameter such as supply voltage and a comparator compares this with an acceptable value. If the measured parameter corresponds to a current through the drive stage which is different from an expected value, a fault is signaled and the contact is prevented from closing.

Abstract translation: 提供了用于测试诸如EPAS系统的电动机的致动器的驱动级的电路。 电源电路包括用于提供正常驱动级电流的触点和用于在提供正常电流之前提供降低的驱动级电流的电阻器。 测量电路测量诸如电源电压的驱动级电气参数，并且比较器将其与可接受的值进行比较。 如果测量参数对应于不同于期望值的通过驱动级的电流，则发出故障并且防止接触闭合。

公开(公告)号：US06324041B1

公开(公告)日：2001-11-27

申请号：US09422876

申请日：1999-10-21

Applicant: Dan M. Goebel ,  David E. Lewis ,  Ronglin Liou

Inventor： Dan M. Goebel ,  David E. Lewis ,  Ronglin Liou

IPC: H02H318

CPC classification number: H01J23/34 ,  H01J2225/38

Abstract: A protection circuit (30) for a Traveling Wave Tube having multiple tone operation. The protection circuit (30) is a dual sensor (52, 54) arrangement. One sensor (52) is an operational amplifier circuit (56) having a short time constant and a high threshold current. The first sensor (52) provides protection against short time scale faults. The second sensor (54) is an operational amplifier circuit (58) having a time constant higher than the first sensor (52) and a lower current threshold than the first sensor (52) to provide protection against long time scale events. The two sensors (52 and 54) are logically “OR”ed with each other and eliminate spurious shutdowns and circuit damage.

Abstract translation: 一种用于具有多个音调操作的行波管的保护电路（30）。 保护电路（30）是双传感器（52,54）。 一个传感器（52）是具有短时间常数和高阈值电流的运算放大器电路（56）。 第一传感器（52）提供防止短时刻度故障的保护。 第二传感器（54）是具有比第一传感器（52）高的时间常数和比第一传感器（52）低的电流阈值的运算放大器电路（58），以提供对长时间尺度事件的保护。 两个传感器（52和54）彼此逻辑上“或”编程，并消除杂散停机和电路损坏。

公开(公告)号：US06282071B1

公开(公告)日：2001-08-28

申请号：US09436273

申请日：1999-11-08

Applicant: David Ross Jackson

Inventor： David Ross Jackson

IPC: H02H318

CPC classification number: H02M1/32 ,  B29C55/00

Abstract: A frequency compensation circuit influences an X-radiation protection (XRP) circuit in a high voltage regulator circuit for a cathode ray tube (CRT) to operate properly under varying frequencies of voltage energizing a high voltage transformer. The frequency compensation circuit includes an input to a source of first voltage related to a high voltage output of the high voltage regulator circuit, a voltage source generator responsive to a high voltage generator frequency of the CRT. A voltage controlled circuit is responsive to the voltage source generator for controlling conveyance of the first voltage to the XRP circuit so that a relatively constant proportion of the high voltage output is reported to the XRP circuit under varying high voltage generator frequencies.

Abstract translation: 频率补偿电路影响用于阴极射线管（CRT）的高压调节器电路中的X辐射保护（XRP）电路，以在变压的高压变压器的电压下正确地工作。 频率补偿电路包括对与高压调节器电路的高电压输出相关的第一电压源的输入，响应于CRT的高电压发生器频率的电压源发生器。 电压控制电路响应于电压源发生器，用于控制第一电压向XRP电路的传送，使得在变化的高电压发生器频率下，向XRP电路报告相对恒定的高压输出比例。

公开(公告)号：US06239959B1

公开(公告)日：2001-05-29

申请号：US09343466

申请日：1999-06-30

Applicant: George E. Alexander

Inventor： George E. Alexander

IPC: H02H318

CPC classification number: H02H3/402

Abstract: An improved reactance characteristic for an overall ground distance quadrilateral characteristic embodies a particular phase selector, possibly among a plurality of phase selectors and variables, that eliminates undesirable generation of a tripping signal other than only for a selected phase to ground fault. This phase selector is I1FZ1, where Z1 is the positive sequence replica impedance and I1F is the fault component of the positive sequence current component, referenced to the proper phase. Preferably, the pre-fault load current is removed from this quantity. Additionally, an improved restricted phase directional function is implemented, further improving the overall performance of the quadrilateral characteristic relay.

Abstract translation: 整个地面距离四边形特性的改进的电抗特性体现了可能在多个相位选择器和变量之中的特定相位选择器，其消除不仅仅对于选定的相对地故障产生跳闸信号。 这个相位选择器是I1FZ1，其中Z1是正序复制阻抗，I1F是正序电流分量的故障分量，参考正确的相位。 优选地，从该数量去除故障前负载电流。 另外，实现了改进的限制相位方向功能，进一步提高了四边形特征继电器的整体性能。