公开(公告)号：US10444776B2

公开(公告)日：2019-10-15

申请号：US16125982

申请日：2018-09-10

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Tetsuro Itakura ,  Yohei Hatakeyama

IPC: G05F1/56 ,  H03F3/45

Abstract: According to one embodiment, a voltage-current conversion circuit includes an amplifier first, second and third inputs, a transistor including a first and second terminals, and a control terminal electrically connected to an output of the amplifier, and a serial connection including resistors connected in series between the first terminal and an ac ground, wherein a predetermined connecting point, among a first connecting point between the first terminal and the serial connection, a second connecting point between the ac ground and the serial connection, and one or more third connecting points between the resistors, is connected to the second input, and one of the connecting points other than the predetermined connecting point is connected to the third input.

公开(公告)号：US10404269B2

公开(公告)日：2019-09-03

申请号：US15920611

申请日：2018-03-14

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Akihide Sai ,  Satoshi Kondo ,  Kentaro Yoshioka ,  Tetsuro Itakura

IPC: H03M1/60 ,  H03M3/00 ,  G04F10/00

Abstract: An analog-to-digital converter has a switched capacitor comprising a capacitor to perform charging and discharging by switching a switch, the switched capacitor varying a charge amount of the capacitor in accordance with a frequency of an oscillation signal in accordance with a differential signal between an input signal and a feedback signal, capacitance of the capacitor, and a predetermined bias voltage, a feedback signal generator to generate the feedback signal based on an output signal of the switched capacitor, and a digital converter to generate a digital signal by digital conversion of the input signal based on the oscillation signal.

公开(公告)号：US09997998B2

公开(公告)日：2018-06-12

申请号：US15444920

申请日：2017-02-28

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Taichi Ogawa ,  Takeshi Ueno ,  Tetsuro Itakura ,  Osamu Watanabe ,  Takayuki Miyazaki ,  Yosuke Toyama

IPC: H02M3/10 ,  H02M3/04 ,  H03K5/159 ,  H03K3/037

CPC classification number: H02M3/04 ,  H02M3/1563 ,  H03K3/037 ,  H03K5/159 ,  H03K2005/00013

Abstract: An electronic circuit according to one embodiment of the present invention includes a first logic circuit, a second logic circuit, first and second capacitors, and a connection circuit. The first logic circuit has a first output terminal from which a first output signal based on a first input signal is output. The second logic circuit outputs a second output signal obtained by inversion of the first output signal is output in a steady state. The first and second capacitors each have one terminal at a first voltage. The connection circuit connects one of the first output terminal and the second output terminal to the first capacitor, and the other to the second capacitor. The connection circuit interchanges connection destinations of the first capacitor and the second capacitor in accordance with a received first connection control signal.

公开(公告)号：US20180143020A1

公开(公告)日：2018-05-24

申请号：US15690710

申请日：2017-08-30

Applicant: Kabushiki Kaisha Toshiba

Inventor： Yohei Hatakeyama ,  Tetsuro Itakura

IPC: G01C19/56

CPC classification number: G01C19/56 ,  B81B2201/0242 ,  G01C19/5614 ,  G01C19/5621

Abstract: A detection device detects a dynamic quantity exerted on a detection mechanical system including first and second mechanical oscillators. The detection device includes first to third transducers, a multiplication unit, a low-pass filter, and an inverting amplification unit. The first transducer detects position of the first mechanical oscillator in a first direction to output a first signal. The second transducer detects position of the second mechanical oscillator in a second direction to output a second signal. The multiplication unit multiplies the signal that the second transducer detects from the second mechanical oscillator by the first signal before the signal is amplified. The third transducer detects position of the second mechanical oscillator in the second direction to output a third signal. The inverting amplification unit gives a control signal generated by inverting and simplifying the third signal to a second actuator that moves the second mechanical oscillator in the second direction.

公开(公告)号：US09864068B2

公开(公告)日：2018-01-09

申请号：US14947317

申请日：2015-11-20

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Shunsuke Kimura ,  Hirokatsu Shirahama ,  Go Kawata ,  Masanori Furuta ,  Hideyuki Funaki ,  Tetsuro Itakura

IPC: G01T1/24 ,  G01T1/17

CPC classification number: G01T1/17

Abstract: According to an embodiment, a circuit includes a shunt and a controller. The shunt shunts input current into a plurality of current paths. The controller controls a gain of current inputted to the shunt by combining the current that is shunted into the current paths by the shunt in combination corresponding to a first signal from the outside or changing a shunt ratio with which the shunt shunts the current into the current paths corresponding to the first signal.

公开(公告)号：US09787284B2

公开(公告)日：2017-10-10

申请号：US15000479

申请日：2016-01-19

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Tetsuro Itakura ,  Masanori Furuta ,  Shunsuke Kimura ,  Hideyuki Funaki ,  Go Kawata ,  Hirokatsu Shirahama

IPC: H03H11/12 ,  G01T1/208 ,  G01T1/20

CPC classification number: H03H11/1213 ,  G01T1/2018 ,  G01T1/208

Abstract: A waveform shaping filter according to one embodiment includes a first resistor, a first transistor, a first capacitor, and a first amplifier. The first resistor includes one end to which a signal current is input and the other end. The first transistor includes a first terminal connected to the other end of the first resistor, a second terminal, and a control terminal. The first capacitor includes one end connected to the other end of the first resistor and the other end. The first amplifier includes an input terminal connected to the one end of the first resistor and an output terminal connected to the control terminal of the first transistor.

公开(公告)号：US09595863B2

公开(公告)日：2017-03-14

申请号：US14170040

申请日：2014-01-31

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Takeshi Ueno ,  Tetsuro Itakura ,  Ikuya Aoyama

IPC: H02M7/537 ,  H02M1/12 ,  H02M7/5387 ,  H02M7/538

CPC classification number: H02M1/126 ,  H02M7/53803 ,  H02M7/53873 ,  Y02B70/1441

Abstract: An inverter control circuit has a quantizer configured to generate a switching signal which changes over switches of a main circuit converting a DC voltage into an AC voltage, and a filter circuit configured to generate a signal having specific transfer characteristic by using a signal correlated with an output voltage of an LC filter which smooths the AC voltage and an instruction signal corresponding to a target value of an output voltage of the main circuit, wherein the quantizer generates the switching signal by quantizing an output signal of the filter circuit.

Abstract translation: 逆变器控制电路具有量化器，其被配置为产生将DC电压转换为AC电压的主电路的开关切换的开关信号，以及滤波器电路，被配置为通过使用与相关信号相关联的信号来生成具有特定传输特性的信号 使AC电压平滑的LC滤波器的输出电压和对应于主电路的输出电压的目标值的指令信号，其中量化器通过量化滤波器电路的输出信号来产生开关信号。

公开(公告)号：US20160349380A1

公开(公告)日：2016-12-01

申请号：US15165182

申请日：2016-05-26

Applicant: Kabushiki Kaisha Toshiba

Inventor： Hirokatsu SHIRAHAMA ,  Tetsuro Itakura ,  Masanori Furuta ,  Shunsuke Kimura ,  Go Kawata ,  Hideyuki Funaki

IPC: G01T1/17

CPC classification number: G01T1/17 ,  G01T1/18 ,  G01T1/2018 ,  G01T1/24

Abstract: A pulse detection circuit according to an embodiment includes a conversion circuit, a delay circuit, first and second comparators, a latch, and a generation circuit. The conversion circuit converts an input signal into a thermometer code signal. The delay circuit outputs a delay signal being the thermometer code signal delayed by a predetermined delay time. The first comparator (The second comparator) compares the thermometer code signal with the delay signal and outputs an increase signal (a decrease signal) indicating whether the input signal is larger (smaller) than the input signal before the delay time. Based on the increase signal and the decrease signal, the latch outputs an increase-decrease signal indicating whether the input signal is increasing or decreasing. Based on the thermometer code signal and the increase-decrease signal, the generation circuit generates a pulse detection signal and a pileup detection signal.

Abstract translation: 根据实施例的脉冲检测电路包括转换电路，延迟电路，第一和第二比较器，锁存器和发生电路。 转换电路将输入信号转换为温度计代码信号。 延迟电路输出延迟了预定延迟时间的温度计代码信号的延迟信号。 第一比较器（第二比较器）将温度计代码信号与延迟信号进行比较，并输出指示输入信号是否比延迟时间之前的输入信号大（小）的增加信号（减小信号）。 基于增加信号和减小信号，锁存器输出指示输入信号是增加还是减小的增减信号。 基于温度计代码信号和增减信号，发电电路产生脉冲检测信号和堆积检测信号。

公开(公告)号：US09407221B2

公开(公告)日：2016-08-02

申请号：US14528196

申请日：2014-10-30

Applicant: Kabushiki Kaisha Toshiba

Inventor： Tetsuro Itakura ,  Masanori Furuta ,  Shunsuke Kimura ,  Go Kawata ,  Hideyuki Funaki

IPC: H03F3/45

CPC classification number: H03F3/45183 ,  H03F3/45188 ,  H03F3/45475 ,  H03F3/45654 ,  H03F2203/45082 ,  H03F2203/45084 ,  H03F2203/45101 ,  H03F2203/45352 ,  H03F2203/45354 ,  H03F2203/45512 ,  H03F2203/45528 ,  H03F2203/45551

Abstract: In one embodiment, a differential amplifier circuit includes a first input terminal, a second input terminal, a first transistor, a second transistor, a third transistor, a current source, a first output terminal, a second output terminal, a first passive element, and a second passive element. The first (second) transistor has a control terminal connected to the first (second) input terminal. The third transistor has a control terminal. The control terminal is applied predetermined bias voltage. The current source is connected to a first terminal in each of the first transistor, second transistor, and third transistor. The first (second) output terminal is connected to a second terminal of the first (second) transistor. The first (second) passive element is connected between the first (second) input terminal and the first (second) output terminal.

Abstract translation: 在一个实施例中，差分放大器电路包括第一输入端，第二输入端，第一晶体管，第二晶体管，第三晶体管，电流源，第一输出端，​​第二输出端，第一无源元件， 和第二无源元件。 第一（第二）晶体管具有连接到第一（第二）输入端子的控制端子。 第三晶体管具有控制端子。 控制端子被施加预定的偏置电压。 电流源连接到第一晶体管，第二晶体管和第三晶体管中的每一个中的第一端子。 第一（第二）输出端子连接到第一（第二）晶体管的第二端子。 第一（第二）无源元件连接在第一（第二）输入端和第一（第二）输出端之间。

公开(公告)号：US20160172967A1

公开(公告)日：2016-06-16

申请号：US14926239

申请日：2015-10-29

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Taichi OGAWA ,  Takeshi Ueno ,  Tetsuro Itakura ,  Takayuki Miyazaki

IPC: H02M3/04

CPC classification number: H02M3/04 ,  H02M3/156 ,  H02M2001/0032 ,  H02M2001/0041 ,  H03K17/082 ,  H03K17/30 ,  H03K2217/0036 ,  Y02B70/16

Abstract: According to an embodiment, a switching power supply circuit includes a comparison circuit and an operation control circuit. The comparison circuit operates intermittently in response to an operation control signal. The comparison circuit compares a feedback voltage based on the output voltage with a reference voltage to generate a comparison result signal representing a result of comparison. The operation control circuit generates the operation control signal based on the clock signal and the comparison result signal. The operation control circuit generates an operation control signal synchronous with the clock signal, if the comparison result signal is at the first level.

Abstract translation: 根据实施例，开关电源电路包括比较电路和运算控制电路。 比较电路响应于操作控制信号间歇地工作。 比较电路将基于输出电压的反馈电压与参考电压进行比较，以产生表示比较结果的比较结果信号。 运算控制电路基于时钟信号和比较结果信号生成运算控制信号。 如果比较结果信号处于第一级，则操作控制电路产生与时钟信号同步的操作控制信号。