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31. 发明申请

US20110115471A1 Current Sensing and Measuring Method and Apparatus 有权
标题翻译：电流传感与测量方法与装置
公开(公告)号：US20110115471A1
公开(公告)日：2011-05-19
申请号：US12620438
申请日：2009-11-17
申请人： Tetsuo Sato , Matsuura Nobuyoshi , Ryotaro Kudo , Hideo Ishii , Shin Chiba
发明人： Tetsuo Sato , Matsuura Nobuyoshi , Ryotaro Kudo , Hideo Ishii , Shin Chiba
IPC分类号： G01R19/00
CPC分类号： G01R19/0092
摘要： A method can include obtaining a voltage across a first transistor as an obtained voltage. The method can also include multiplying the obtained voltage by a predetermined multiple M to yield a multiplied voltage. The method can further include applying the multiplied voltage to a second transistor, wherein the second transistor is N times smaller than the first transistor. The method can additionally include providing an output current of the second transistor as an M/N scaled estimate of an output current of the first transistor.
摘要翻译：一种方法可以包括获得跨第一晶体管的电压作为获得的电压。该方法还可以包括将获得的电压乘以预定的倍数M以产生倍增的电压。该方法还可以包括将倍增电压施加到第二晶体管，其中第二晶体管比第一晶体管小N倍。该方法还可以包括提供第二晶体管的输出电流作为第一晶体管的输出电流的M / N定标估计。

32. 发明授权

US07342391B2 Power supply device and switching power supply device 失效
标题翻译：电源装置和开关电源装置
公开(公告)号：US07342391B2
公开(公告)日：2008-03-11
申请号：US11808286
申请日：2007-06-08
申请人： Koji Tateno , Ryotaro Kudo , Shin Chiba , Kyoichi Hosokawa , Toshio Nagasawa
发明人： Koji Tateno , Ryotaro Kudo , Shin Chiba , Kyoichi Hosokawa , Toshio Nagasawa
IPC分类号： G05F3/16
CPC分类号： H02M3/1588 , H01L2224/48137 , H01L2224/48247 , H02M2001/0009 , Y02B70/1466
摘要： In a driver circuit constructing a switching power supply device that switches power transistors passing a current through a coil by a PWM mode, a current detection transistor, which is smaller in size than the low-potential side power transistor, and a current detection resistor are provided in parallel to the low-potential side power transistor. The same control voltage as the power transistor is applied to the control terminal of the current detection transistor. An operational amplifier is formed, that has the potential of the connection node between the current detection transistor and the current detection resistor applied to its inverse input terminal and a feedback loop, so as to make a pair of input terminals of the operational amplifier be at the same potential. A signal produced by the current detection resistor is thus outputted as a current detection signal.
摘要翻译：在构成开关电源装置的驱动电路中，通过PWM模式切换通过线圈的电流的开关电源装置，尺寸小于低电位侧功率晶体管的电流检测晶体管和电流检测电阻器与低电位侧功率晶体管并联提供。与功率晶体管相同的控制电压施加到电流检测晶体管的控制端。形成运算放大器，其具有电流检测晶体管和施加到其反相输入端的电流检测电阻之间的连接节点的电位和反馈环路，以使运算放大器的一对输入端子处于同样的潜力。因此，由电流检测电阻器产生的信号作为电流检测信号被输出。

33. 发明授权

US07245116B2 Power supply device and switching power supply device 失效
标题翻译：电源装置和开关电源装置
公开(公告)号：US07245116B2
公开(公告)日：2007-07-17
申请号：US11100407
申请日：2005-04-07
申请人： Koji Tateno , Ryotaro Kudo , Shin Chiba , Kyoichi Hosokawa , Toshio Nagasawa
发明人： Koji Tateno , Ryotaro Kudo , Shin Chiba , Kyoichi Hosokawa , Toshio Nagasawa
IPC分类号： G05F3/16
CPC分类号： H02M3/1588 , H01L2224/48137 , H01L2224/48247 , H02M2001/0009 , Y02B70/1466
摘要： In a driver circuit constructing a switching power supply device that switches power transistors passing a current through a coil by a PWM mode, a current detection transistor, which is smaller in size than the low-potential side power transistor and a current detection resistor are provided in parallel to the low-potential side power transistor. The same control voltage as the power transistor is applied to the control terminal of the current detection transistor. An operational amplifier is formed, that has the potential of the connection node between the current detection transistor and the current detection resistor applied to its inverse input terminal and a feedback loop, so as to make a pair of input terminals of the operational amplifier be at the same potential. A signal produced by the current detection resistor is thus outputted as a current detection signal.
摘要翻译：在构成开关电源装置的驱动电路中，通过PWM模式切换通过线圈的电流的开关电源装置，设置尺寸小于低电位侧功率晶体管的电流检测晶体管和电流检测电阻器与低电位侧功率晶体管并联。与功率晶体管相同的控制电压施加到电流检测晶体管的控制端。形成运算放大器，其具有电流检测晶体管与施加到其反相输入端的电流检测电阻之间的连接节点的电位和反馈回路，以使运算放大器的一对输入端处于同样的潜力。因此，由电流检测电阻器产生的信号作为电流检测信号被输出。

34. 发明授权

US07158392B2 Switching power supply device and the semiconductor integrated circuit for power supply control 失效
标题翻译：开关电源装置和半导体集成电路供电控制
公开(公告)号：US07158392B2
公开(公告)日：2007-01-02
申请号：US10727601
申请日：2003-12-05
申请人： Kyoichi Hosokawa , Kenichi Onda , Yoichi Uehara , Ryotaro Kudo , Shinichi Yoshida
发明人： Kyoichi Hosokawa , Kenichi Onda , Yoichi Uehara , Ryotaro Kudo , Shinichi Yoshida
IPC分类号： H02M3/335
CPC分类号： H02M3/3376 , H02M3/33592 , H02M2001/0048 , Y02B70/1475 , Y02B70/1491
摘要： It is aimed at decreasing losses not only in a synchronous rectifier circuit provided at a secondary side of a DC-DC converter, but also in a full-bridge switching circuit provided at a primary side thereof. The DC-DC converter comprises a transformer for voltage conversion, a synchronous rectifier circuit at the secondary side, and a full-bridge switching circuit at the primary side. The DC-DC converter performs synchronous rectifier control which uses switch transistors to change paths of currents flowing through the secondary coil in synchronization with switching operations at the primary side. The DC-DC converter detects currents flowing through a load at the secondary side, primary-side currents varying with the load currents, or primary-side input voltages to dynamically control off-timings of a synchronous rectification transistor at the secondary side. In addition, the DC-DC converter detects primary-side input voltages and currents flowing through the secondary-side load to dynamically control on-timings of a transistor in the primary-side switching circuit.
摘要翻译：其目的在于，不仅在设置在DC-DC转换器的次级侧的同步整流电路中，而且在设置在其一次侧的全桥开关电路中减少损耗。 DC-DC转换器包括用于电压转换的变压器，次级侧的同步整流电路和初级侧的全桥开关电路。 DC-DC转换器执行同步整流器控制，其使用开关晶体管来同步初级侧的开关操作来改变流过次级线圈的电流的路径。 DC-DC转换器检测流过次级侧的负载的电流，初级侧电流随负载电流变化或初级侧输入电压，以动态地控制次级侧的同步整流晶体管的停止时序。此外，DC-DC转换器检测初级侧输入电压和流过次级侧负载的电流，以动态地控制初级侧开关电路中的晶体管的接通时序。

35. 发明授权

US06559718B2 Semiconductor integrated circuit device 有权
标题翻译：半导体集成电路器件
公开(公告)号：US06559718B2
公开(公告)日：2003-05-06
申请号：US09782301
申请日：2001-02-14
申请人： Ryotaro Kudo , Shin Chiba , Jin Kiong Ang
发明人： Ryotaro Kudo , Shin Chiba , Jin Kiong Ang
IPC分类号： H03F345
CPC分类号： H03F3/45596 , H03F3/3072 , H03F3/45085 , H03F2200/168 , H03F2203/45544 , H03F2203/45612
摘要： In order to decrease a change in the offset caused by high-frequency noise, filter circuits for cutting high-frequency noise are inserted between the input terminals of a differential amplifier circuit and input nodes of a differential amplifier stage, the filter circuits having a cut-off frequency which is higher than a cut-off frequency of the differential amplifier circuit but is lower than a cut-off frequency of a parasitic filter circuit constituted by a parasitic capacity and a parasitic resistance in the input unit.
摘要翻译：为了减少由高频噪声引起的偏移的变化，用于切断高频噪声的滤波电路被插入到差分放大器电路的输入端和差分放大器级的输入节点之间，滤波电路具有切断低于差分放大电路的截止频率，但低于由输入单元中的寄生电容和寄生电阻构成的寄生滤波电路的截止频率。

36. 发明授权

US09570985B2 Intelligent gate drive voltage generator 有权
标题翻译：智能门驱动电压发生器
公开(公告)号：US09570985B2
公开(公告)日：2017-02-14
申请号：US12829975
申请日：2010-07-02
申请人： Tetsuo Sato , Jim Comstock , Ryotaro Kudo , Masashi Koyano
发明人： Tetsuo Sato , Jim Comstock , Ryotaro Kudo , Masashi Koyano
IPC分类号： G05F1/00 , H02M3/158 , H02M1/00
CPC分类号： H02M3/1588 , H02M2001/0019 , H02M2001/0022 , Y02B70/1466
摘要： According to an embodiment of the invention, an apparatus includes a microprocessor-based pulse-width modulation controller configured to generate a pulse-width modulation signal, and a synchronous converter including a first transistor, a second transistor, a first driver, and a second driver. The apparatus further includes a drive voltage generator configured to generate a drive voltage for the synchronous converter. The drive voltage generator is further configured to generate the drive voltage based on a measured output current and a measured input voltage.
摘要翻译：根据本发明的实施例，一种装置包括：微处理器的脉冲宽度调制控制器，被配置为产生脉宽调制信号;以及同步转换器，包括第一晶体管，第二晶体管，第一驱动器和第二驱动器司机。该装置还包括被配置为产生用于同步转换器的驱动电压的驱动电压发生器。驱动电压发生器还被配置为基于测量的输出电流和测量的输入电压来产生驱动电压。

37. 发明授权

US08604764B2 Switching power supply device and a semiconductor integrated circuit 有权
公开(公告)号：US08604764B2
公开(公告)日：2013-12-10
申请号：US13613359
申请日：2012-09-13
申请人： Kyoichi Hosokawa , Ryotaro Kudo , Toshio Nagasawa , Koji Tateno
发明人： Kyoichi Hosokawa , Ryotaro Kudo , Toshio Nagasawa , Koji Tateno
IPC分类号： G05F1/40 , G05F1/10
CPC分类号： H02M3/1588 , G05F1/44 , H02M7/538 , H03F3/217 , H03F2200/351 , H03F2200/78 , H03K17/063 , H03K17/687 , Y02B70/1466
摘要： In a switching power source which controls a current which flows in an inductor through a switching element which performs a switching operation in response to a PWM signal, and forms an output voltage by a capacitor which is provided in series in the inductor, a booster circuit which is constituted of a bootstrap capacity and a MOSFET is provided between an output node of the switching element and a predetermined voltage terminal. The boosted voltage is used as an operational voltage of a driving circuit of the switching element, another source/drain region and a substrate gate are connected with each other, and a junction diode between one source/drain region and the substrate gate is inversely directed with respect to the boosted voltage which is formed by the bootstrap capacity.

38. 发明申请

US20130176015A1 DISTRIBUTED DRIVING SYSTEM 有权
标题翻译：分布式驾驶系统
公开(公告)号：US20130176015A1
公开(公告)日：2013-07-11
申请号：US13347197
申请日：2012-01-10
申请人： Tetsuo Sato , Ryotaro Kudo , Hideo Ishii , Kenichi Nakano
发明人： Tetsuo Sato , Ryotaro Kudo , Hideo Ishii , Kenichi Nakano
IPC分类号： G05F3/16
CPC分类号： H02M1/088 , H02M3/158 , H02M2001/0054 , Y02B70/1491
摘要： A step down convertor with a distributed driving system. In one embodiment, an apparatus is disclosed that includes an inductor coupled to an output node. The apparatus also includes first and second circuits. The first circuit can transmit current to the output node via the inductor, and the second can transmit current to the output node via the inductor. The apparatus also includes a third circuit for modifying operational aspects of the first circuit or the second circuit based on a magnitude of current flowing through the inductor.
摘要翻译：具有分布式驱动系统的降压转换器。在一个实施例中，公开了一种包括耦合到输出节点的电感器的装置。该装置还包括第一和第二电路。第一个电路可以通过电感将电流传输到输出节点，而第二个电路可以通过电感将电流传输到输出节点。该装置还包括第三电路，用于基于流过电感器的电流的大小来修改第一电路或第二电路的操作方面。

39. 发明授权

US08314606B2 Current sensing and measuring method and apparatus 有权
标题翻译：电流传感测量方法及装置
公开(公告)号：US08314606B2
公开(公告)日：2012-11-20
申请号：US12620438
申请日：2009-11-17
申请人： Tetsuo Sato , Matsuura Nobuyoshi , Ryotaro Kudo , Hideo Ishii , Shin Chiba
发明人： Tetsuo Sato , Matsuura Nobuyoshi , Ryotaro Kudo , Hideo Ishii , Shin Chiba
IPC分类号： G01R19/00 , G01R31/26
CPC分类号： G01R19/0092
摘要： A method can include obtaining a voltage across a first transistor as an obtained voltage. The method can also include multiplying the obtained voltage by a predetermined multiple M to yield a multiplied voltage. The method can further include applying the multiplied voltage to a second transistor, wherein the second transistor is N times smaller than the first transistor. The method can additionally include providing an output current of the second transistor as an M/N scaled estimate of an output current of the first transistor.
摘要翻译：一种方法可以包括获得跨第一晶体管的电压作为获得的电压。该方法还可以包括将获得的电压乘以预定的倍数M以产生倍增的电压。该方法还可以包括将倍增电压施加到第二晶体管，其中第二晶体管比第一晶体管小N倍。该方法还可以包括提供第二晶体管的输出电流作为第一晶体管的输出电流的M / N定标估计。

40. 发明申请

US20120086062A1 SWITCHING POWER SUPPLY DEVICE AND A SEMICONDUCTOR INTEGRATED CIRCUIT 有权
标题翻译：切换电源装置和半导体集成电路
公开(公告)号：US20120086062A1
公开(公告)日：2012-04-12
申请号：US13270329
申请日：2011-10-11
申请人： KYOICHI HOSOKAWA , Ryotaro Kudo , Toshio Nagasawa , Koji Tateno
发明人： KYOICHI HOSOKAWA , Ryotaro Kudo , Toshio Nagasawa , Koji Tateno
IPC分类号： H01L27/06
CPC分类号： H02M3/1588 , G05F1/44 , H02M7/538 , H03F3/217 , H03F2200/351 , H03F2200/78 , H03K17/063 , H03K17/687 , Y02B70/1466
摘要： In a switching power source which controls a current which flows in an inductor through a switching element which performs a switching operation in response to a PWM signal, and forms an output voltage by a capacitor which is provided in series in the inductor, a booster circuit which is constituted of a bootstrap capacity and a MOSFET is provided between an output node of the switching element and a predetermined voltage terminal. The boosted voltage is used as an operational voltage of a driving circuit of the switching element, another source/drain region and a substrate gate are connected with each other such that when the MOSFET is made to assume an OFF state, and a junction diode between one source/drain region and the substrate gate is inversely directed with respect to the boosted voltage which is formed by the bootstrap capacity.
摘要翻译：在开关电源中，其通过响应于PWM信号进行开关动作的开关元件来控制在电感器中流动的电流，并且通过串联设置在电感器中的电容器形成输出电压，在开关元件的输出节点和预定的电压端子之间设置由自举电容构成的MOSFET和MOSFET。升压电压用作开关元件的驱动电路的工作电压，另一个源极/漏极区域和衬底栅极彼此连接，使得当MOSFET被制成断开状态时，以及在二极管一个源极/漏极区域和衬底栅极相对于由自举能力形成的升压电压是反向的。

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