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1. 发明授权

US6104094A Semiconductor device 失效
标题翻译：半导体器件
公开(公告)号：US6104094A
公开(公告)日：2000-08-15
申请号：US42728
申请日：1998-03-17
申请人： Hiroyuki Ban , Fukuo Ishikawa
发明人： Hiroyuki Ban , Fukuo Ishikawa
IPC分类号： H01L21/762 , H01L21/60 , H01L21/822 , H01L23/485 , H01L27/04 , H01L27/12 , H01L23/48
CPC分类号： H01L24/05 , H01L24/48 , H01L27/1203 , H01L2224/02166 , H01L2224/04042 , H01L2224/05001 , H01L2224/05073 , H01L2224/05124 , H01L2224/05624 , H01L2224/48463 , H01L2924/00014 , H01L2924/01004 , H01L2924/01005 , H01L2924/01006 , H01L2924/01013 , H01L2924/01015 , H01L2924/01033 , H01L2924/12032 , H01L2924/19041 , H01L2924/19043 , H01L2924/30105
摘要： A pad for input/output signals is formed on a first conductive type insulated island region interposing an insulating film therebetween. The insulated island region is electrically insulated and isolated from other semiconductor regions in a semiconductor substrate. A fixed potential is provided to the insulated island region through an n.sup.+ -type layer and an electrode. As a result, it is possible to prevent noise superimposed on the input/output signals from interfering in the operation of the other semiconductor regions, and to prevent noise produced in the other semiconductor regions from being superimposed on the input/output signals.
摘要翻译：用于输入/输出信号的焊盘形成在其间插入有绝缘膜的第一导电型绝缘岛区域上。绝缘岛区域与半导体衬底中的其它半导体区域电绝缘和隔离。通过n +型层和电极将绝缘岛区域提供固定电位。结果，可以防止叠加在输入/输出信号上的噪声干扰其他半导体区域的操作，并且防止在其它半导体区域中产生的噪声叠加在输入/输出信号上。

2. 发明授权

US6088207A Over-voltage protection apparatus and vehicular direction indicating apparatus with over-voltage protection 失效
标题翻译：过电压保护装置及具有过电压保护功能的车辆方向指示装置
公开(公告)号：US6088207A
公开(公告)日：2000-07-11
申请号：US115835
申请日：1998-07-15
申请人： Akira Sugiura , Fukuo Ishikawa , Hiroyuki Ban
发明人： Akira Sugiura , Fukuo Ishikawa , Hiroyuki Ban
IPC分类号： H03K17/082 , H02H3/20
CPC分类号： H03K17/0826
摘要： An over-voltage protection apparatus includes a power feed line. A load has a given low impedance. A current supplying device operates for supplying a current to the load via the power feed line. A load drive device operates for controlling the supply of the current to the load by the current supplying device. An over-voltage detecting device operates for detecting an over-voltage at the power feed line. A discharge command device operates for, when the over-voltage at the power feed line is detected by the over-voltage detecting device, controlling the load drive device to enable a discharge current to flow from the power feed line into the load and thereby to remove the over-voltage from the power feed line through discharge. A current detecting device operates for detecting the discharge current. A discharge continuing device operates for continuing the discharge and the flow of the discharge current from the power feed line in cases where the discharge current detected by the current detecting device exceeds a predetermined reference level.
摘要翻译：一种过电压保护装置包括馈电线。负载具有给定的低阻抗。电流供给装置用于经由供电线向负载供给电流。负载驱动装置用于控制通过电流供应装置向负载供应电流。过电压检测装置用于检测馈电线上的过电压。放电指令装置工作时，当由过电压检测装置检测到馈电线上的过电压时，控制负载驱动装置使得放电电流能够从供电线流入负载，从而通过放电去除馈电线上的过电压。电流检测装置用于检测放电电流。在由电流检测装置检测到的放电电流超过预定参考电平的情况下，放电继续装置用于继续放电和来自馈电线的放电电流的流动。

3. 发明授权

US5838526A Load actuation circuit with a surge protecting function 失效
标题翻译：具有浪涌保护功能的负载启动电路
公开(公告)号：US5838526A
公开(公告)日：1998-11-17
申请号：US852512
申请日：1997-05-07
申请人： Fukuo Ishikawa , Akira Sugiura , Masahisa Makino , Hiroyuki Ban
发明人： Fukuo Ishikawa , Akira Sugiura , Masahisa Makino , Hiroyuki Ban
IPC分类号： H02H9/04 , H02H7/20 , H03F1/52 , H03K17/00 , H03K17/082 , H02H9/00
CPC分类号： H03K17/0826 , H03K2217/0036
摘要： In a load actuation circuit of an emitter-follower circuit arrangement, a surge detection circuit detects a power surge voltage superposed on a power voltage of a power line. A feed circuit supplies current to a control electrode of an output transistor (i.e. emitter-follower transistor) from the power line to turn on the output transistor forcibly when any power surge voltage is detected by the surge detection circuit. Thus, the power surge voltage is absorbed by the output transistor.
摘要翻译：在发射极跟随器电路装置的负载驱动电路中，浪涌检测电路检测叠加在电力线的电源电压上的电力浪涌电压。馈电电路从电源线向输出晶体管（即发射极 - 跟随器晶体管）的控制电极提供电流，以在由浪涌检测电路检测到任何电源浪涌电压时强制导通输出晶体管。因此，电源浪涌电压被输出晶体管吸收。

4. 发明授权

US5444595A Load drive apparatus including power transistor protection circuit from overcurrent 失效
标题翻译：负载驱动装置包括功率晶体管保护电路不要过电流
公开(公告)号：US5444595A
公开(公告)日：1995-08-22
申请号：US311938
申请日：1994-09-26
申请人： Fukuo Ishikawa , Shuuichi Konishi , Katsumi Nakamura , Hideyuki Ikemoto , Toshio Ishida
发明人： Fukuo Ishikawa , Shuuichi Konishi , Katsumi Nakamura , Hideyuki Ikemoto , Toshio Ishida
IPC分类号： H03K3/0231 , H03K17/082 , H02H7/16
CPC分类号： H03K3/0231 , H03K17/0822
摘要： A load drive apparatus is used in a vehicle direction indicating apparatus operable free from overcurrents and overvoltage. The load drive apparatus includes: a charging/recharging capacitor; a charging/recharging circuit for charging/recharging the capacitor at a preselected time constant in such a manner that a voltage across the capacitor is varied between a preset upper limit voltage and a preset lower limit voltage; a drive circuit for turning ON a power transistor series-connected to a current path employed to supply a current from a DC power source to a load, thereby driving the load when the charging/discharging circuit causes the capacitor to be charged, or the voltage across the capacitor is higher than, or equal to a predetermined voltage defined between the upper limit voltage and the lower limit voltage; overcurrent judging means for judging whether or not a voltage across terminals of the power transistor connected to the above-described current path exceed an overcurrent judging voltage.
摘要翻译：在没有过电流和过电压的车辆方向指示装置中使用负载驱动装置。负载驱动装置包括：充电/再充电电容器; 充电/再充电电路，用于以预选的时间常数对电容器充电/再充电，使得电容器两端的电压在预设上限电压和预设下限电压之间变化; 用于接通串联连接到用于将电流从DC电源提供给负载的电流路径的功率晶体管的驱动电路，从而当充电/放电电路使电容器被充电时驱动负载，或者电压跨越电容器的电压高于或等于限定在上限电压和下限电压之间的预定电压; 用于判断连接到上述电流路径的功率晶体管的两端的电压是否超过过电流判定电压的过电流判断装置。

5. 发明授权

US09225158B2 Overcurrent protection circuit 有权
标题翻译：过流保护电路
公开(公告)号：US09225158B2
公开(公告)日：2015-12-29
申请号：US13611389
申请日：2012-09-12
申请人： Ippei Kawamoto , Takeyoshi Hisada , Fukuo Ishikawa , Akira Sugiura
发明人： Ippei Kawamoto , Takeyoshi Hisada , Fukuo Ishikawa , Akira Sugiura
IPC分类号： H02H3/00 , H02H3/08 , H02H9/08
CPC分类号： H02H3/08
摘要： An overcurrent protection circuit includes a load drive section driving a load, a wire coupled with the load and the load drive section, a current detection section detecting a load current value of an electric current that flows to the load, an addition and subtraction section determining an addition and subtraction value based on the load current value and transmitting an integration result of addition and subtraction, a comparison circuit comparing the integration result with a threshold value, and a control circuit controlling the load drive section based on the comparison result. The addition and subtraction section includes an addition value determination circuit that determines an addition value in the addition and subtraction value based on the load current value and a function expression or information indicating a relationship between the load current value and the addition value.
摘要翻译：过电流保护电路包括驱动负载的负载驱动部分，与负载和负载驱动部分耦合的电线，检测流向负载的电流的负载电流值的电流检测部分，加法和减法部分确定基于负载电流值的加减法值，发送加法和减法的积分结果，将积分结果与阈值进行比较的比较电路，以及基于比较结果控制负载驱动部的控制电路。加法和减法部分包括相加值确定电路，其基于负载电流值和表示负载电流值和相加值之间的关系的函数表达式或信息确定加减值中的相加值。

6. 发明授权

US09007051B2 Electric current detection circuit 有权
标题翻译：电流检测电路
公开(公告)号：US09007051B2
公开(公告)日：2015-04-14
申请号：US13568500
申请日：2012-08-07
申请人： Takeshi Hattori , Kazunori Ozawa , Fukuo Ishikawa , Nobutomo Takagi
发明人： Takeshi Hattori , Kazunori Ozawa , Fukuo Ishikawa , Nobutomo Takagi
IPC分类号： G01R19/00 , G01R19/165 , G01R19/25
CPC分类号： G01R19/16571 , G01R19/2513
摘要： An electric current detection circuit for detecting an electric current flowing to a load includes a voltage generation circuit, a plurality of comparators, and a reference voltage shift circuit. The voltage generation circuit includes a plurality of resistors coupled in series and generates different voltages by dividing a reference voltage with the resistors. The comparators determine a current level of the electric current flowing to the load using the voltages generated by the voltage generation circuit as threshold values. The reference voltage shift circuit shifts the reference voltage. The electric current flowing to the load is detected based on the current level determined by the plurality of comparators before shifting the reference voltage and the current level determined by the plurality of comparators after shifting the reference voltage.
摘要翻译：用于检测流向负载的电流的电流检测电路包括电压产生电路，多个比较器和参考电压移位电路。电压产生电路包括串联耦合的多个电阻器，通过将参考电压与电阻器分开来产生不同的电压。比较器使用由电压产生电路产生的电压作为阈值来确定流向负载的电流的当前电平。参考电压移位电路移动参考电压。在移动参考电压之前，基于由多个比较器确定的电流水平来检测流入负载的电流，然后移位参考电压和由多个比较器确定的电流电平。

7. 发明授权

US07915729B2 Load driving semiconductor apparatus 有权
标题翻译：负载驱动半导体装置
公开(公告)号：US07915729B2
公开(公告)日：2011-03-29
申请号：US12385902
申请日：2009-04-23
申请人： Yoshimitsu Ukai , Kazunori Ozawa , Fukuo Ishikawa
发明人： Yoshimitsu Ukai , Kazunori Ozawa , Fukuo Ishikawa
IPC分类号： H01L23/34 , H01L23/10 , H01L23/28
CPC分类号： H05K1/0201 , H01L2924/0002 , H05K1/0206 , H05K2201/10151 , H05K2201/10166 , H05K2201/10545 , H05K2203/304 , H01L2924/00
摘要： A load driving semiconductor apparatus includes: a driving transistor, which operates based on an input voltage from an external circuit; a power semiconductor device controlling power supply to a load in such a manner that the power semiconductor device supplies electric power to the load when the transistor operates, and the power semiconductor device stops supplying electric power to the load when the transistor stops operating; and a mounting board, on which the driving transistor and the power semiconductor device are mounted. The mounting board includes a heat radiation pattern for emitting heat generated in the power semiconductor device. The heat radiation pattern includes a heat receiving pattern, on which the driving transistor is mounted.
摘要翻译：一种负载驱动半导体装置，包括：驱动晶体管，其基于来自外部电路的输入电压进行动作; 功率半导体装置，其以这样的方式控制对负载的电力供给，即当所述晶体管工作时所述功率半导体装置向所述负载提供电力，并且所述功率半导体装置在所述晶体管停止工作时停止向所述负载供给电力; 以及安装基板，其上安装有驱动晶体管和功率半导体器件。安装板包括用于发射在功率半导体器件中产生的热的散热图案。散热图案包括其上安装驱动晶体管的热接收图案。

8. 发明授权

US06377468B1 Electric circuit apparatus 失效
标题翻译：电路设备
公开(公告)号：US06377468B1
公开(公告)日：2002-04-23
申请号：US09593862
申请日：2000-06-15
申请人： Hideyuki Ohtani , Fukuo Ishikawa , Hideki Kabune , Hiroshi Hattori
发明人： Hideyuki Ohtani , Fukuo Ishikawa , Hideki Kabune , Hiroshi Hattori
IPC分类号： H05K702
CPC分类号： H05K1/0201 , H05K1/141 , H05K3/341 , H05K2201/10166 , H05K2201/10181 , H05K2201/10484 , H05K2203/159 , H05K2203/176 , Y10T29/49144
摘要： Circuit elements of surface-mounting type such as MOSFETs etc. are mounted on a circuit board by soldering. The circuit board is retained slantingly by a base so that any one of the MOSFET falls out by its self-weight when the solder melts due to an abnormal heat generation of the MOSFET. The falling of the MOSFET is stopped by a stopper member, and then the MOSFET becomes in an electrically open state and retained at the stopped position in consequence of the subsequent cooling of the solder. Accordingly, even if one or more of the MOSFETs cause the abnormal heat generation, the continuous heat generation of the MOSFET is stopped and also the other circuit elements are prevented from being short-circuited.
摘要翻译：诸如MOSFET等的表面安装型电路元件通过焊接安装在电路板上。电路板由基座倾斜地保持，使得当焊料由于MOSFET的异常发热而熔化时，MOSFET中的任何一个通过其自重而下降。 MOSFET的下降通过止动件停止，然后由于随后的焊料冷却，MOSFET变成电打开状态并保持在停止位置。因此，即使一个或多个MOSFET引起异常发热，MOSFET的连续发热也停止，并且防止其它电路元件短路。

9. 发明授权

US08441767B2 Overcurrent protection circuit 有权
标题翻译：过流保护电路
公开(公告)号：US08441767B2
公开(公告)日：2013-05-14
申请号：US13033984
申请日：2011-02-24
申请人： Takeyoshi Hisada , Nobutomo Takagi , Shigekazu Sugimoto , Fukuo Ishikawa
发明人： Takeyoshi Hisada , Nobutomo Takagi , Shigekazu Sugimoto , Fukuo Ishikawa
IPC分类号： H02H3/08 , H02H9/02
CPC分类号： H02H9/02
摘要： An overcurrent protection circuit includes a load driver for driving a load, a controller for turning ON and OFF the load driver, a current sensor for measuring a load current flowing through the load, and an add/subtract circuit for performing both an addition operation and a subtraction operation on a previous calculation result or for performing only the subtraction operation on the previous calculation result so as to produce a present calculation result. The addition operation uses an added value depending on the presently measured current. The subtraction operation uses a subtracted value depending on the presently measured current. The controller turns OFF the load driver, when the present calculation result of the add/subtract circuit exceeds a predetermined determination value.
摘要翻译：过电流保护电路包括用于驱动负载的负载驱动器，用于接通和断开负载驱动器的控制器，用于测量流过负载的负载电流的电流传感器，以及用于执行加法运算和加法运算的加/减电路，对先前的计算结果进行减法运算，或仅针对先前计算结果执行减法运算，以产生当前计算结果。添加操作根据当前测量的电流使用附加值。减法运算根据当前测量的电流使用减法值。当加法/减法电路的当前计算结果超过预定的确定值时，控制器关闭负载驱动器。

10. 发明申请

US20110216448A1 OVERCURRENT PROTECTION CIRCUIT 有权
标题翻译：过流保护电路
公开(公告)号：US20110216448A1
公开(公告)日：2011-09-08
申请号：US13033984
申请日：2011-02-24
申请人： Takeyoshi HISADA , Nobutomo Takagi , Shigekazu Sugimoto , Fukuo Ishikawa
发明人： Takeyoshi HISADA , Nobutomo Takagi , Shigekazu Sugimoto , Fukuo Ishikawa
IPC分类号： H02H9/02
CPC分类号： H02H9/02
摘要： An overcurrent protection circuit includes a load driver for driving a load, a controller for turning ON and OFF the load driver, a current sensor for measuring a load current flowing through the load, and an add/subtract circuit for performing both an addition operation and a subtraction operation on a previous calculation result or for performing only the subtraction operation on the previous calculation result so as to produce a present calculation result. The addition operation uses an added value depending on the presently measured current. The subtraction operation uses a subtracted value depending on the presently measured current. The controller turns OFF the load driver, when the present calculation result of the add/subtract circuit exceeds a predetermined determination value.
摘要翻译：过电流保护电路包括用于驱动负载的负载驱动器，用于接通和断开负载驱动器的控制器，用于测量流过负载的负载电流的电流传感器，以及用于执行加法运算和加法运算的加/减电路，对先前的计算结果进行减法运算，或仅针对先前计算结果执行减法运算，以产生当前计算结果。添加操作根据当前测量的电流使用附加值。减法运算根据当前测量的电流使用减法值。当加法/减法电路的当前计算结果超过预定的确定值时，控制器关闭负载驱动器。

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