专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20100079316A1 Digital signal transmitting apparatus and digital signal transmitting method 有权
标题翻译：数字信号发送装置和数字信号发送方法
公开(公告)号：US20100079316A1
公开(公告)日：2010-04-01
申请号：US12588004
申请日：2009-09-30
申请人： Reiji Okuno , Takakazu Imai , Takeo Gokita
发明人： Reiji Okuno , Takakazu Imai , Takeo Gokita
IPC分类号： H03M9/00
CPC分类号： H03M9/00 , H04L25/4902 , H04L25/493
摘要： A digital signal transmitting apparatus includes an encoder which converts parallel input signals of multiple channels into serial data in a manner synchronized with a first clock signal, and a decoder which converts the serial data into parallel output signals of the multiple channels in a manner synchronized with a second clock signal operating in a manner asynchronous with the first clock signal. The serial data has a different period and a different duty factor corresponding to each combination of the logical values of the parallel input signals of the multiple channels.
摘要翻译：数字信号发送装置包括以与第一时钟信号同步的方式将多个信道的并行输入信号转换为串行数据的编码器，以及与串行数据以与第一时钟信号同步的方式将串行数据转换为并行输出信号的解码器第二时钟信号以与第一时钟信号异步的方式工作。串行数据具有与多个通道的并行输入信号的逻辑值的每个组合相对应的不同周期和不同的占空因数。

2. 发明授权

US07078884B2 Power supply apparatus and control circuit therefor 失效
标题翻译：电源装置及其控制电路
公开(公告)号：US07078884B2
公开(公告)日：2006-07-18
申请号：US10811968
申请日：2004-03-30
申请人： Koichiro Miura , Takeshi Uematsu , Hiroshi Kawasaki , Takakazu Imai , Ken Matsuura
发明人： Koichiro Miura , Takeshi Uematsu , Hiroshi Kawasaki , Takakazu Imai , Ken Matsuura
IPC分类号： G05F1/59 , H02M3/158
CPC分类号： H02M3/1584 , H02M3/1588 , Y02B70/1466
摘要： A selector sets respective phases of pulse driving signals in reverse when a proportion signal or integration signal does not exceed a threshold. Shifting the respective phases of the pulse driving signals from each other lowers the ripple voltage. When the load current increases drastically, the output voltage Vo tends to decrease remarkably because of the shortage of capacity in the power supply. In this case, when the proportion signal or integration signal exceeds its corresponding threshold, a phase control unit causes the pulse driving signals to synchronize their phases, i.e., the selector supplies the same ramp wave to the comparators, so that respective output voltages supplied from the DC voltage converter circuits attain the same phase, thereby restraining the output voltage supplied to the load from decreasing remarkably.
摘要翻译：当比例信号或积分信号不超过阈值时，A选择器反向设置脉冲驱动信号的各个相位。使脉冲驱动信号的各个相位彼此相位降低纹波电压。当负载电流急剧增加时，由于电源容量不足，输出电压Vo会显着下降。在这种情况下，当比例信号或积分信号超过其对应的阈值时，相位控制单元使脉冲驱动信号同步其相位，即，选择器向比较器提供相同的斜波，从而从直流电压转换器电路达到相同的相位，从而抑制提供给负载的输出电压显着降低。

3. 发明授权

US08164330B2 Magnetic sensor and magnetic field strength measurement method saturating magnetization of magnetization-free layer 有权
标题翻译：磁传感器和磁场强度测量方法饱和无磁化层的磁化
公开(公告)号：US08164330B2
公开(公告)日：2012-04-24
申请号：US12369978
申请日：2009-02-12
申请人： Takakazu Imai , Kei Tanabe
发明人： Takakazu Imai , Kei Tanabe
IPC分类号： G01R33/02
CPC分类号： G01R33/093 , B82Y25/00
摘要： The magnetic sensor according to the present invention includes: a magneto-resistive effect element which has a stacked body in which a magnetization-free layer, a nonmagnetic layer, and a magnetization fixed layer are stacked in this order, and the longitudinal direction of which is a direction perpendicular to the stacking direction; and a current path layer which is provided on the magneto-resistive effect element via an insulation layer so as to be spaced apart from the magneto-resistive effect element in the stacking direction, and which generates a magnetic field by being supplied with a current. The current path layer extends in a direction which forms an angle between 0 and 45 degrees to the longitudinal direction of the magneto-resistive effect element when viewed from the stacking direction.
摘要翻译：根据本发明的磁传感器包括：磁阻效应元件，其具有堆叠体，其中无磁化层，非磁性层和磁化固定层依次层叠，并且其纵向方向是垂直于层叠方向的方向; 以及电流通路层，其通过绝缘层设置在磁阻效应元件上，以便在堆叠方向上与磁阻效应元件间隔开，并且通过提供电流产生磁场。当从层叠方向观察时，电流通路层沿与磁阻效应元件的纵向形成0°至45°的角度的方向延伸。

4. 发明申请

US20090243608A1 MAGNETIC FIELD MEASUREMENT METHOD AND MAGNETIC SENSOR 有权
标题翻译：磁场测量方法和磁传感器
公开(公告)号：US20090243608A1
公开(公告)日：2009-10-01
申请号：US12411842
申请日：2009-03-26
申请人： Takakazu IMAI , Junya FUKUDA , Kei TANABE
发明人： Takakazu IMAI , Junya FUKUDA , Kei TANABE
IPC分类号： G01R33/02
CPC分类号： G01R33/07 , G01R33/072
摘要： The magnetic field measurement method has: a step of preparing a magnetic sensor which includes: a magneto-resistive effect element having a magnetization-free layer and a magnetization fixed layer, and having a longitudinal direction; and magnetic field application means, wherein the magnetization direction of the magnetization fixed layer is fixed in a direction which forms an angle equal to or less than 45 degrees to the longitudinal direction, and a magnetic field generated by the magnetic field application means forms an angle equal to or less than 45 degrees to the longitudinal direction; a step of saturating the magnetization of the magnetization-free layer by the magnetic field application means and magnetizing the magnetization-free layer in one direction in the longitudinal direction; and a step of measuring the strength of an external magnetic field by applying the external magnetic field to the magnetization-free layer in the other direction in the longitudinal direction.
摘要翻译：磁场测量方法具有：制备磁传感器的步骤，其包括：具有无磁化层和磁化固定层并具有纵向方向的磁阻效应元件; 以及磁场施加装置，其中，所述磁化固定层的磁化方向在与所述纵向方向形成等于或小于45度的角度的方向上固定，并且由所述磁场施加装置产生的磁场形成角度等于或小于45度; 通过磁场施加装置使无磁化层的磁化饱和并沿纵向在一个方向上使无磁化层磁化的步骤; 以及通过将外部磁场沿长度方向向另一方向施加外部磁场而测量外部磁场的强度的步骤。

5. 发明授权

US07002324B2 Switching power supply control circuit and switching power supply using same 失效
标题翻译：开关电源控制电路和开关电源使用相同
公开(公告)号：US07002324B2
公开(公告)日：2006-02-21
申请号：US10383967
申请日：2003-03-07
申请人： Takeshi Uematsu , Takakazu Imai , Hiroshi Kawasaki
发明人： Takeshi Uematsu , Takakazu Imai , Hiroshi Kawasaki
IPC分类号： G05F1/40 , H02M7/00
CPC分类号： H02M3/1584
摘要： This invention provides a switching power supply control circuit based on the parallel operation scheme that suppresses ripples in the output voltage. The control circuit comprises switching circuit blocks 10 and 20 connected in parallel, output reactors 31 and 32 connected in parallel corresponding to the switching circuit blocks 10 and 20, and a control circuit 40 that controls the operation of the switching circuit blocks 10 and 20. The control circuit 40 comprises: means of calculating the difference between the reactor currents IL1 and IL2 flowing through the output reactors 31 and 32 and the average value of the reactor currents, means of generating control voltages Vo1 and Vo2 corresponding to the switching circuit blocks 10 and 20 based on the calculated differences and the output voltage Vop comparators 48 and 49 that compare the control voltages Vo1 and Vo2 against the reference voltage Vref and latch circuits 51 and 52 that latch the outputs of the comparators 48 and 49 in response to the clock signal CLK.
摘要翻译：本发明提供了一种基于并行操作方案的开关电源控制电路，其抑制输出电压中的波纹。控制电路包括并联连接的开关电路块10和20，对应于开关电路块10和20并联连接的输出电抗器31和32以及控制开关电路块10和20的操作的控制电路40。控制电路40包括：计算流过输出电抗器31和32的电抗器电流I L1和I L2之间的差的平均值以及电抗器电流的平均值根据计算出的差值和输出电压V OUT产生对应于开关电路块10和20的控制电压V O1和V OUT2的装置， SUB>比较器48和49，其将控制电压V SUB1和V OUT2与参考电压V SUB ref和锁存电路51和52进行比较，响应于时钟信号CLK锁存比较器48和49的输出。

6. 发明授权

US06960904B2 Switching power supply controller and switching power supply 失效
标题翻译：开关电源控制器和开关电源
公开(公告)号：US06960904B2
公开(公告)日：2005-11-01
申请号：US10801836
申请日：2004-03-17
申请人： Ken Matsuura , Takeshi Uematsu , Hiroshi Kawasaki , Takakazu Imai , Koichiro Miura
发明人： Ken Matsuura , Takeshi Uematsu , Hiroshi Kawasaki , Takakazu Imai , Koichiro Miura
IPC分类号： H02M1/08 , G05F1/44
CPC分类号： H02M1/082
摘要： An adder 11 outputs a signal VS indicating a value of (Vr−Vo), and a multiplier 12 outputs a control signal GS indicating a value of G(Vr−Vo) on the basis of the signal VS. An adder 13 outputs a signal HS on the basis of the control signal GS and a signal FS outputted from an operation circuit 30, and a PWM signal generating circuit 20 generates a PWM signal KS on the basis of the signal HS and a ramp signal RS outputted from a ramp signal circuit 15, and outputs this signal KS to a switching power supply. A counter 14 counts an on time of the PWM signal KS and retains a count value at a time of receiving a sample signal SMP. The operation circuit 30 has a high-pass filter 31 and an integrator 32, performs an operation based on a signal DS indicating the count value outputted from the counter 14, and outputs the signal FS after the operation.
摘要翻译：加法器11输出表示（Vr-Vo）的值的信号VS，乘法器12基于信号VS输出表示G（Vr-Vo）的值的控制信号GS。加法器13基于控制信号GS输出信号HS和从运算电路30输出的信号FS，PWM信号生成电路20根据信号HS和斜坡信号RS生成PWM信号KS 从斜坡信号电路15输出，并将该信号KS输出到开关电源。计数器14对PWM信号KS的导通时间进行计数，并且在接收采样信号SMP时保持计数值。运算电路30具有高通滤波器31和积分器32，根据从计数器14输出的计数值的信号DS进行运算，并在运算后输出信号FS。

7. 发明授权

US09086444B2 Magnetic field detection device and current sensor 有权
标题翻译：磁场检测装置和电流传感器
公开(公告)号：US09086444B2
公开(公告)日：2015-07-21
申请号：US13519802
申请日：2010-12-28
申请人： Hiroyoshi Nakajima , Takakazu Imai , Takuya Daigo , Reiji Okuno , Junya Fukuda
发明人： Hiroyoshi Nakajima , Takakazu Imai , Takuya Daigo , Reiji Okuno , Junya Fukuda
IPC分类号： G01R33/02 , G01R33/09 , B82Y25/00 , G01R15/20
CPC分类号： G01R33/093 , B82Y25/00 , G01R15/207
摘要： Provided is a magnetic field detection device and a current sensor capable of increasing the degree of freedom in selecting the type of the magnetic field detection element.A magnetic field detection device 1 includes a conductor 3 that generates a magnetic field; a C core 2 provided so as to surround the conductor 3; and a magnetic field detection element 4 that detects a magnetic field. The C core 2 has a gap G1, and the magnetic field detection element 4 is disposed at a position where the magnetic field generated from the conductor 3 can be detected, the position being outside the gap G1. Since the direction of the magnetic flux varies outside of the gap G1 from place to place, the direction of the magnetic flux that passes through the magnetic field detection element 4 can be arbitrarily selected by arbitrarily selecting the installation location of the magnetic field detection element 4. Therefore, the degree of freedom in selecting the type of the magnetic field detection element 4 is increased.
摘要翻译：提供了一种磁场检测装置和电流传感器，其能够增加选择磁场检测元件的类型的自由度。磁场检测装置1包括产生磁场的导体3; 设置成围绕导体3的C芯2; 以及检测磁场的磁场检测元件4。 C芯2具有间隙G1，磁场检测元件4配置在能够检测从导体3产生的磁场的位置，该位置在间隙G1的外侧。由于磁通量的方向在间隙G1之外从一个地方变化到另一个位置，所以通过磁场检测元件4的安装位置可以任意地选择通过磁场检测元件4的磁通的方向因此，选择磁场检测元件4的种类的自由度增加。

8. 发明申请

US20120293170A1 MAGNETIC FIELD DETECTION DEVICE AND CURRENT SENSOR 有权
标题翻译：磁场检测装置和电流传感器
公开(公告)号：US20120293170A1
公开(公告)日：2012-11-22
申请号：US13519802
申请日：2010-12-28
申请人： Hiroyoshi Nakajima , Takakazu Imai , Takuya Daigo , Reiji Okuno , Junya Fukuda
发明人： Hiroyoshi Nakajima , Takakazu Imai , Takuya Daigo , Reiji Okuno , Junya Fukuda
IPC分类号： G01R33/02 , G01R33/09
CPC分类号： G01R33/093 , B82Y25/00 , G01R15/207
摘要： Provided is a magnetic field detection device and a current sensor capable of increasing the degree of freedom in selecting the type of the magnetic field detection element.A magnetic field detection device 1 includes a conductor 3 that generates a magnetic field; a C core 2 provided so as to surround the conductor 3; and a magnetic field detection element 4 that detects a magnetic field. The C core 2 has a gap G1, and the magnetic field detection element 4 is disposed at a position where the magnetic field generated from the conductor 3 can be detected, the position being outside the gap G1. Since the direction of the magnetic flux varies outside of the gap G1 from place to place, the direction of the magnetic flux that passes through the magnetic field detection element 4 can be arbitrarily selected by arbitrarily selecting the installation location of the magnetic field detection element 4. Therefore, the degree of freedom in selecting the type of the magnetic field detection element 4 is increased.
摘要翻译：提供了一种磁场检测装置和电流传感器，其能够增加选择磁场检测元件的类型的自由度。磁场检测装置1包括产生磁场的导体3; 设置成围绕导体3的C芯2; 以及检测磁场的磁场检测元件4。 C芯2具有间隙G1，磁场检测元件4配置在能够检测从导体3产生的磁场的位置，该位置在间隙G1的外侧。由于磁通量的方向在间隙G1之外从一个地方变化到另一个位置，所以通过磁场检测元件4的安装位置可以任意地选择通过磁场检测元件4的磁通的方向因此，选择磁场检测元件4的种类的自由度增加。

9. 发明申请

US20070090821A1 DC-DC converter and control method thereof 有权
标题翻译： DC-DC转换器及其控制方法
公开(公告)号：US20070090821A1
公开(公告)日：2007-04-26
申请号：US11586861
申请日：2006-10-26
申请人： Takakazu Imai , Takeo Gokita
发明人： Takakazu Imai , Takeo Gokita
IPC分类号： G05F1/00
CPC分类号： H02M1/32 , H02M3/1588 , Y02B70/1466
摘要： A DC-DC converter has a switching circuit including switching elements at the high-side and at the low-side, an inductor connected to the output end of the switching circuit, a smoothing capacitor connected to the inductor, a switching control circuit for supplying a switching pulse to the switching elements, and a circuit. The circuit detects that a state that the switching element at the high side is switched off and the switching element at the low side is switched on is maintained for a predetermined period or longer. In this case, the circuit forcibly switches off the switching element at the low side.
摘要翻译： DC-DC转换器具有包括高侧和低侧的开关元件的开关电路，连接到开关电路的输出端的电感器，连接到电感器的平滑电容器，用于供应的开关控制电路到开关元件的开关脉冲，以及电路。该电路检测到高电平侧的开关元件被切断状态以及低侧的开关元件接通的状态保持规定期间或更长时间。在这种情况下，电路强制关闭低侧的开关元件。

10. 发明授权

US07075278B2 Switching power supply controller and switching power supply 失效
标题翻译：开关电源控制器和开关电源
公开(公告)号：US07075278B2
公开(公告)日：2006-07-11
申请号：US10797150
申请日：2004-03-11
申请人： Takeshi Uematsu , Hiroshi Kawasaki , Takakazu Imai , Koichiro Miura , Ken Matsuura
发明人： Takeshi Uematsu , Hiroshi Kawasaki , Takakazu Imai , Koichiro Miura , Ken Matsuura
IPC分类号： G05F1/40
CPC分类号： H02M3/157 , H02M2001/0009
摘要： A controller 7A for generating a drive signal (PWM signal) PS for controlling a switching power supply, comprises control signal setting means 10, 11 for setting a control signal CS on the basis of an output voltage Vo and a target voltage Vr; current estimating means 12 for estimating an inductor current on the basis of the drive signal PS and for generating an estimated current signal PC; DC component removing means 14, 15 for extracting a DC component DC included in the estimated current signal PC and for removing the DC component DC from the estimated current signal PC; DC component resetting means 13, 14 for resetting the extracted DC component DC every predetermined time; and comparing means 16 for comparing the control signal CS with the estimated current signal PC′ after the removal of the DC component DC.
摘要翻译：用于产生用于控制开关电源的驱动信号（PWM信号）PS的控制器7A包括控制信号设定装置10,11，用于根据输出电压Vo和目标电压Vr设定控制信号CS; 电流估计装置12，用于基于驱动信号PS估计电感器电流并产生估计的电流信号PC; DC分量去除装置14,15，用于提取包括在估计电流信号PC中的DC分量DC，并从估计的电流信号PC去除DC分量DC; DC分量复位装置13,14，用于每隔预定时间复位提取的DC分量DC; 以及比较装置16，用于在去除DC分量DC之后比较控制信号CS与估计的电流信号PC'。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式