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公开(公告)号：US09231508B2
公开(公告)日：2016-01-05
申请号：US14246191
申请日：2014-04-07
申请人： Atsushi Muramatsu , Tomomitsu Ohara
发明人： Atsushi Muramatsu , Tomomitsu Ohara
摘要： A motor driver apparatus that is formed of a semiconductor integrated circuit which is supplied with an electric power and drives a direct current motor includes a signal generating part that generates an indication signal for indicating a back electromotive force generation period while the direct current motor generates a back electromotive force, a removing part that detects a voltage variation generated in a power-supply voltage by the back electromotive force generated by the direct-current motor during the back electromotive force generation period indicated by the indication signal, and removes the detected voltage variation, and a limiting part that limits the power-supply voltage so as to be less than a predetermined voltage at a speed higher than that in the removing part.
摘要翻译： 由提供电力并驱动直流电动机的半导体集成电路形成的电动机驱动器装置包括：信号发生部，其生成用于指示反电动势产生期间的指示信号，同时直流电动机产生 反电动势，通过由指示信号指示的反电动势产生期间由直流电动机产生的反电动势检测在电源电压中产生的电压变化的去除部，并且去除检测到的电压变化 以及限制部，其以比除去部的速度高的速度将电源电压限制为小于预定电压。
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公开(公告)号：US08314650B2
公开(公告)日：2012-11-20
申请号：US12943149
申请日：2010-11-10
申请人： Takafumi Goto , Tomomitsu Ohara
发明人： Takafumi Goto , Tomomitsu Ohara
IPC分类号： G05F1/10
CPC分类号： G05F3/20
摘要： Disclosed is a reference voltage generating circuit including a constant current circuit which comprises: a first resistive element and a bipolar transistor connected in series between a supply voltage terminal and a constant potential point; a first MOS transistor having a gate connected to a node connecting the first resistive element with the bipolar transistor; a second resistive element connected in series between a source of the first MOS transistor and the constant potential point; a second MOS transistor connected between a drain of the first MOS transistor and the supply voltage terminal; and a third MOS transistor forming a current mirror in conjunction with the second MOS transistor, wherein a constant current generated by the constant current circuit or a current proportional to the generated constant current is converted to a voltage as a reference voltage.
摘要翻译： 公开了一种包括恒流电路的参考电压产生电路，其包括：串联连接在电源电压端子和恒定电位点之间的第一电阻元件和双极晶体管; 第一MOS晶体管，具有连接到将所述第一电阻元件与所述双极晶体管连接的节点的栅极; 串联连接在第一MOS晶体管的源极和恒定电位点之间的第二电阻元件; 连接在第一MOS晶体管的漏极和电源电压端子之间的第二MOS晶体管; 以及与第二MOS晶体管结合形成电流镜的第三MOS晶体管，其中由恒流电路产生的恒定电流或与产生的恒定电流成比例的电流被转换为作为参考电压的电压。
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公开(公告)号：US09006928B2
公开(公告)日：2015-04-14
申请号：US13248248
申请日：2011-09-29
申请人： Masato Yoshikuni , Tomomitsu Ohara
发明人： Masato Yoshikuni , Tomomitsu Ohara
CPC分类号： H02J1/10 , H02J7/35 , Y10T307/549
摘要： Disclosed is a current and voltage detection circuit comprising: a voltage input terminal to which a direct current voltage is applied; a voltage comparison circuit that determines which of the applied voltage and a predetermined voltage is larger; a switching element connected in series to a current-voltage conversion unit, between a positive electrode terminal of the power supply and a reference potential point of the circuit; and a control circuit that generates a control signal of the switching element in response to output of the voltage comparison circuit, wherein the circuit turns ON the switching element and determines the voltage, by the voltage comparison circuit, when a voltage supply capability or current supply capability is low; and turns OFF the switching element by the control signal and determines the voltage, when the voltage comparison circuit determines that the voltage is higher than the predetermined voltage.
摘要翻译： 公开了一种电流和电压检测电路，包括：施加直流电压的电压输入端子; 电压比较电路，其确定所施加的电压和预定电压中的哪一个较大; 在电源的正极端子和电路的基准电位之间，与电流 - 电压转换单元串联连接的开关元件; 以及控制电路，其响应于所述电压比较电路的输出而产生所述开关元件的控制信号，其中所述电路通过所述电压比较电路接通所述开关元件并确定所述电压，当电压供应能力或电流供应 能力低下 并且通过控制信号关断开关元件，并且当电压比较电路确定电压高于预定电压时确定电压。
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公开(公告)号：US20050169022A1
公开(公告)日：2005-08-04
申请号：US10984067
申请日：2004-11-09
申请人： Junji Takeshita , Masayuki Suzuki , Keisuke Yamazato , Tomomitsu Ohara , Tomiyuki Nagai , Naoshi Tokuda
发明人： Junji Takeshita , Masayuki Suzuki , Keisuke Yamazato , Tomomitsu Ohara , Tomiyuki Nagai , Naoshi Tokuda
CPC分类号： H02M1/36 , H02M3/155 , H02M3/158 , H05B33/0815 , H05B33/0818 , H05B33/0824
摘要： A power supply circuit is disclosed that includes a coil with first and second ends having supply voltage applied to the first end, a first switching element connected between the second end of the coil and ground, a second switching or diode element supplying current to a load after rectifying the current in accordance with voltage generated at the connection of the coil and the first switching element, a driver circuit switching at least the first switching element, a third switching element connected in series to the load, and a power supply stop circuit switching off the first element so as to stop supplying power to the load and switching off the third element so as to stop supplying the current to the load in accordance with an external signal.
摘要翻译： 公开了一种电源电路，其包括具有施加到第一端的电源电压的第一和第二端的线圈，连接在线圈的第二端和地之间的第一开关元件，向负载提供电流的第二开关或二极管元件 在根据在线圈和第一开关元件的连接处产生的电压对电流进行整流之后，至少切换第一开关元件的开关元件，与负载串联连接的第三开关元件，以及电源停止电路开关 关闭第一元件，以便停止向负载供电并关闭第三元件，以便根据外部信号停止向负载提供电流。
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公开(公告)号：US10222430B2
公开(公告)日：2019-03-05
申请号：US15443134
申请日：2017-02-27
IPC分类号： G01R33/00 , H03F3/45 , H01L25/16 , H01L23/522 , H01L23/29 , G01R15/18 , G01R33/038
摘要： A sensor device is provided including: an electric wire; a semiconductor device including an inductor and an amplifier, the inductor being configured to detect a magnetic field generated around the electric wire, the amplifier including a bipolar element configured to amplify a voltage generated at the inductor; and a substrate on which the first semiconductor device and the electric wire are arranged such that the first semiconductor device is apart from the electric wire by at least a given distance. In a plan view of the substrate, the electric wire does not overlap the first semiconductor device.
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公开(公告)号：US08664918B2
公开(公告)日：2014-03-04
申请号：US13249576
申请日：2011-09-30
申请人： Masato Yoshikuni , Tomomitsu Ohara
发明人： Masato Yoshikuni , Tomomitsu Ohara
IPC分类号： H02J7/00
CPC分类号： H02J7/0072
摘要： A plurality of current control MOS transistors and a plurality of current detection systems are provided, each of the current detection systems including a current detection transistor current-mirror connected to the current control MOS transistor and a current-voltage converter connected in series to the current detection transistor. The current detection systems are switched between one another for operation in response to the intensity of a charging current flowing through the current control transistors.
摘要翻译： 提供多个电流控制MOS晶体管和多个电流检测系统，每个电流检测系统包括连接到电流控制MOS晶体管的电流检测晶体管电流镜和与电流串联连接的电流 - 电压转换器 检测晶体管。 电流检测系统在彼此之间切换以响应于流过电流控制晶体管的充电电流的强度而工作。
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公开(公告)号：US20120080952A1
公开(公告)日：2012-04-05
申请号：US13248248
申请日：2011-09-29
申请人： Masato YOSHIKUNI , Tomomitsu Ohara
发明人： Masato YOSHIKUNI , Tomomitsu Ohara
CPC分类号： H02J1/10 , H02J7/35 , Y10T307/549
摘要： Disclosed is a current and voltage detection circuit comprising: a voltage input terminal to which a direct current voltage is applied; a voltage comparison circuit that determines which of the applied voltage and a predetermined voltage is larger; a switching element connected in series to a current-voltage conversion unit, between a positive electrode terminal of the power supply and a reference potential point of the circuit; and a control circuit that generates a control signal of the switching element in response to output of the voltage comparison circuit, wherein the circuit turns ON the switching element and determines the voltage, by the voltage comparison circuit, when a voltage supply capability or current supply capability is low; and turns OFF the switching element by the control signal and determines the voltage, when the voltage comparison circuit determines that the voltage is higher than the predetermined voltage.
摘要翻译： 公开了一种电流和电压检测电路，包括：施加直流电压的电压输入端子; 电压比较电路，其确定所施加的电压和预定电压中的哪一个较大; 在电源的正极端子和电路的基准电位之间，与电流 - 电压转换单元串联连接的开关元件; 以及控制电路，其响应于所述电压比较电路的输出而产生所述开关元件的控制信号，其中所述电路通过所述电压比较电路接通所述开关元件并确定所述电压，当电压供应能力或电流供应 能力低下 并且通过控制信号关断开关元件，并且当电压比较电路确定电压高于预定电压时确定电压。
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公开(公告)号：US11112279B2
公开(公告)日：2021-09-07
申请号：US16807585
申请日：2020-03-03
申请人： Tomomitsu Ohara , Kazuki Tsutsumi , Shinji Kimura , Syuhei Suzuki , Yusuke Ohba
发明人： Tomomitsu Ohara , Kazuki Tsutsumi , Shinji Kimura , Syuhei Suzuki , Yusuke Ohba
摘要： An optical module includes a fixed substrate, and a sensor substrate secured to the fixed substrate and having a through-hole formed therein. A light emitting device is secured to the fixed substrate at a position in the through-hole. A light receiving device is provided in the sensor substrate. A dummy light receiving device is formed between the light receiving device and the through-hole, around the through-hole, and in the sensor substrate. The light receiving device and the dummy light receiving device are made of an impurity diffusion layer having a same conductive type as a conductive type of a surface layer of the sensor substrate. The dummy light receiving device is deeper than the light receiving device.
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公开(公告)号：US08410821B2
公开(公告)日：2013-04-02
申请号：US12942239
申请日：2010-11-09
申请人： Tomomitsu Ohara , Takafumi Goto
发明人： Tomomitsu Ohara , Takafumi Goto
IPC分类号： H03K5/153
CPC分类号： G05F1/573
摘要： An output current detecting circuit includes: a current detecting transistor having a size smaller than that of an output transistor and a control terminal, to which a voltage same as a control voltage of the output transistor is applied; a sensing resistor connected to the current detecting transistor in a serial mode; a comparison circuit comparing a voltage converted by the sensing resistor and a reference voltage to judge a magnitude of a current flowing through the output transistor; and a reference voltage generating circuit, wherein the reference voltage generating circuit includes a constant current circuit flowing a constant current and a resistance element having one terminal connected to a power source voltage terminal, the reference voltage generating circuit generating the reference voltage based on a power source voltage by the conversion of the constant current into a voltage by flowing the constant current through the resistance element.
摘要翻译： 输出电流检测电路包括：电流检测晶体管，其尺寸小于输出晶体管的尺寸，以及施加与输出晶体管的控制电压相同的电压的控制端子; 以串联方式连接到电流检测晶体管的检测电阻; 比较由感测电阻转换的电压和参考电压，以判断流经输出晶体管的电流的大小; 以及参考电压产生电路，其中所述参考电压产生电路包括流过恒定电流的恒流电路和具有连接到电源电压端子的一个端子的电阻元件，所述参考电压产生电路基于功率产生参考电压 通过使恒定电流流过电阻元件而将恒定电流转换成电压的电源电压。
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公开(公告)号：US20120081154A1
公开(公告)日：2012-04-05
申请号：US13249576
申请日：2011-09-30
申请人： Masato YOSHIKUNI , Tomomitsu Ohara
发明人： Masato YOSHIKUNI , Tomomitsu Ohara
IPC分类号： H02M11/00
CPC分类号： H02J7/0072
摘要： A plurality of current control MOS transistors and a plurality of current detection systems are provided, each of the current detection systems including a current detection transistor current-mirror connected to the current control MOS transistor and a current-voltage converter connected in series to the current detection transistor. The current detection systems are switched between one another for operation in response to the intensity of a charging current flowing through the current control transistors.
摘要翻译： 提供多个电流控制MOS晶体管和多个电流检测系统，每个电流检测系统包括连接到电流控制MOS晶体管的电流检测晶体管电流镜和与电流串联连接的电流 - 电压转换器 检测晶体管。 电流检测系统在彼此之间切换以响应于流过电流控制晶体管的充电电流的强度而工作。
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