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公开(公告)号：US20140266313A1
公开(公告)日：2014-09-18
申请号：US14213345
申请日：2014-03-14
Applicant: Seiko Instruments Inc.
Inventor： Fumiyasu UTSUNOMIYA
IPC: H03K5/153
CPC classification number: H03K5/153 , H03K5/2472
Abstract: The light receiving circuit includes: a photoelectric conversion element for causing a current corresponding to an amount of incident light to flow to a node; a voltage detection circuit for outputting a detection signal when a voltage of the node becomes equal to or higher than a first voltage; a reset circuit for causing, when the detection signal of the voltage detection circuit is input, the current of the photoelectric conversion element to flow to a GND terminal so that the voltage of the node becomes a second voltage lower than the first voltage, and for holding this state when the detection signal is no longer input; and a voltage increase detection circuit for detecting a fluctuation in the voltage of the node and outputting a detection result.
Abstract translation: 光接收电路包括：用于使与入射光量对应的电流流向节点的光电转换元件; 电压检测电路，用于当节点的电压变为等于或高于第一电压时输出检测信号; 复位电路，用于当输入电压检测电路的检测信号时，使光电转换元件的电流流向GND端，使得节点的电压变为低于第一电压的第二电压，并且为了 当不再输入检测信号时保持该状态; 以及电压增加检测电路，用于检测节点的电压的波动并输出检测结果。
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公开(公告)号：US20140253069A1
公开(公告)日：2014-09-11
申请号：US14196750
申请日：2014-03-04
Applicant: Seiko Instruments Inc.
Inventor： Fumiyasu UTSUNOMIYA
IPC: G05F1/46
Abstract: Provided is a voltage regulator capable of controlling an output voltage to a predetermined voltage quickly after an undershoot occurs in the output voltage. The voltage regulator includes: an undershoot detection circuit configured to detect a voltage that is based on an output voltage of the voltage regulator, and output a current corresponding to an undershoot amount of the output voltage; and an I-V converter circuit configured to control a current flowing through an output transistor based on a current controlled by an output of an error amplifier and a current flowing from the undershoot detection circuit.
Abstract translation: 提供一种电压调节器，其能够在输出电压发生下冲之后快速地将输出电压控制到预定电压。 电压调节器包括：下冲检测电路，被配置为检测基于电压调节器的输出电压的电压，并输出与输出电压的下冲量相对应的电流; 以及I-V转换器电路，被配置为基于由误差放大器的输出和从下冲检测电路流出的电流控制的电流来控制流过输出晶体管的电流。
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公开(公告)号：US08829885B2
公开(公告)日：2014-09-09
申请号：US13784139
申请日：2013-03-04
Applicant: Seiko Instruments Inc.
Inventor： Nao Otsuka , Kosuke Takada
Abstract: Provided is a voltage reference circuit which is able to obtain high PSRR without a variation in power-supply voltage and an influence of noise. A voltage reference circuit for performing voltage-current conversion on forward voltages of PN junction elements and on a difference therebetween to generate a voltage so as not to depend on a temperature is constituted by an amplifier for controlling a temperature characteristic of a voltage of an output terminal, a source follower circuit for supplying a power to the amplifier, and a PMOS transistor which is controlled by the amplifier and which controls a current to flow into the PN junction elements.
Abstract translation: 提供了能够在电源电压变化和噪声的影响的情况下获得高PSRR的电压基准电路。 用于对PN结元件的正向电压进行电压 - 电流转换的电压参考电路和它们之间的差异以产生不依赖于温度的电压由用于控制输出电压的温度特性的放大器构成 端子，用于向放大器供电的源极跟随器电路和由放大器控制并且控制电流流入PN结元件的PMOS晶体管。
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公开(公告)号：US20140248514A1
公开(公告)日：2014-09-04
申请号：US14195252
申请日：2014-03-03
Applicant: Seiko Instruments Inc.
Inventor： Takashi ONO , Toshiyuki KOIKE , Satoshi ABE
IPC: H01M10/42
CPC classification number: H01M10/4257 , H02J7/0029 , H02J2007/0039
Abstract: Provided is a battery device with high safety, which has improved accuracy of overcurrent detection. In the battery device, an overcurrent detection terminal of a battery state monitoring circuit is connected to a node between a discharge control switch and a charge control switch via a resistor.
Abstract translation: 提供了一种具有高安全性的电池装置，具有提高的过电流检测精度。 在电池装置中，电池状态监视电路的过电流检测端子通过电阻连接到放电控制开关和充电控制开关之间的节点。
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公开(公告)号：US20140247523A1
公开(公告)日：2014-09-04
申请号：US14195274
申请日：2014-03-03
Applicant: Seiko Instruments Inc.
Inventor： Akihiro KAWANO , Michiyasu DEGUCHI
IPC: H02H7/12
Abstract: There is provided a switching regulator including an overcurrent protection circuit which is able to automatically return from an overcurrent state. The switching regulator includes an error amplification circuit which amplifies a difference between a feedback voltage and a reference voltage based on an output voltage and outputs the amplified difference; a PWM comparator which compares an output of the error amplification circuit with an output of a triangular wave oscillation circuit, and controls an output transistor; an overcurrent detection circuit which monitors a load current flowing through a load connected to an output terminal, detects that the load current is an overcurrent, and outputs an overcurrent detection signal causing a switching operation to stop; and a negative feedback control circuit which receives the overcurrent detection signal, and controls the load current to a predetermined current value.
Abstract translation: 提供了一种开关调节器，其包括能够自动从过电流状态返回的过电流保护电路。 开关调节器包括：误差放大电路，其基于输出电压放大反馈电压和参考电压之间的差，并输出放大的差值; PWM比较器，其将误差放大电路的输出与三角波振荡电路的输出进行比较，并控制输出晶体管; 检测流过连接到输出端子的负载的负载电流的过电流检测电路，检测负载电流是过电流，并输出使开关动作停止的过电流检测信号; 以及负反馈控制电路，其接收过电流检测信号，并将负载电流控制为预定的电流值。
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Patent Agency Ranking
公开(公告)号：US20140243693A1
公开(公告)日：2014-08-28
申请号：US14183877
申请日：2014-02-19
Applicant: SEIKO INSTRUMENTS INC.
Inventor： Kazuhiro KOYAMA , Takanori HASEGAWA , Ayumi MATSUMOTO , Akira TAKAKURA
IPC: A61B5/0402
CPC classification number: A61B5/0402 , A61B5/0024 , A61B5/0245 , A61B5/6823 , A61B5/6831 , A61B5/7221 , A61B2560/0209
Abstract: An electronic device to further reduce power consumption is provided. The electronic device includes a receiving circuit which receives a heart rate signal transmitted from a heart rate measurement device, a noise detection unit which determines whether the receiving circuit normally receives the heart rate signal or not, and a receiving circuit control unit which allows the receiving circuit to be intermittently operated when the noise detection unit determines that the heart rate signal is not received continuously for a given period of time.
Abstract translation: 提供了进一步降低功耗的电子设备。 电子设备包括接收从心率测量设备发送的心率信号的接收电路，判定接收电路是否正常接收心率信号的噪声检测单元，以及接收电路控制单元，其允许接收 当噪声检测单元确定心率信号在给定的时间段内不被连续地接收时，间歇地操作电路。
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公开(公告)号：US20140242451A1
公开(公告)日：2014-08-28
申请号：US14188319
申请日：2014-02-24
Applicant: Seiko Instruments Inc.
Inventor： Takumi SAWAYAMA , Tadahito SUZUKI , Ken MIURA
IPC: H01M10/058 , H01M10/0525 , H01M2/02
CPC classification number: H01M10/058 , H01M2/0222 , H01M2/026 , H01M4/131 , H01M4/485 , H01M4/581 , H01M10/05 , H01M10/0525
Abstract: A nonaqueous electrolytic secondary battery of excellent characteristics is provided. The nonaqueous electrolytic secondary battery includes: a positive electrode case; a negative electrode case fixed to the positive electrode case, and that forms a storage space with the positive electrode case in between the negative electrode case and the positive electrode case; a positive electrode portion provided on the positive electrode case in the storage space, and that contains a lithium compound as positive electrode active material; a negative electrode portion provided on the negative electrode case in the storage space, and that contains SiOx (0≦x
Abstract translation: 提供了具有优异特性的非水电解二次电池。 非水电解质二次电池包括：正极壳体; 负极壳体固定在正极壳体上，并且在正极壳体和正极壳体之间形成有正极壳体的存储空间; 正极部，设置在所述储存空间的所述正极壳体上，并且含有锂化合物作为正极活性物质; 负极部，设置在所述存储空间中的所述负极壳体上，并且含有SiO x（0＆lt; nlE; x <2）作为负极活性物质; 以及储存在储存空间内的非水电解液。 负极壳体包括基底层和相对于基底层相对于存储空间设置并且具有比基底层更高的热导率的厚度为2.6μm以上的镍层。
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公开(公告)号：US20140240042A1
公开(公告)日：2014-08-28
申请号：US14190862
申请日：2014-02-26
Applicant: Seiko Instruments Inc.
Inventor： Toshiyuki TSUZAKI
IPC: H03F3/45
CPC classification number: H03F3/45 , H03F1/52 , H03F3/45475 , H03F2200/441 , H03F2203/45101 , H03F2203/45604 , H03F2203/45616
Abstract: There is provided an operational amplifier capable of detecting that an input terminal has been open circuited without restricting the voltage range of an input signal. The operational amplifier includes a first comparator which detects that an inverting input terminal of an operational amplifier has been open circuited, a second comparator which detects that a non-inverting input terminal of the operational amplifier has been open circuited, a first resistor and a first switch which are controlled by output signals of the first comparator and the second comparator and which are connected in series between the non-inverting input terminal and a ground terminal of the operational amplifier, and a second resistor and a second switch which are connected in series between the inverting input terminal and a supply terminal of the operational amplifier.
Abstract translation: 提供了一种能够检测输入端已经断开而没有限制输入信号的电压范围的运算放大器。 运算放大器包括检测运算放大器的反相输入端已经断开的第一比较器，检测运算放大器的非反相输入端已经断开的第二比较器，第一电阻和第一 开关，其由第一比较器和第二比较器的输出信号控制，并串联连接在运算放大器的非反相输入端子和接地端子之间，第二电阻器和第二开关串联连接 在反相输入端子和运算放大器的电源端子之间。
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公开(公告)号：US20140239884A1
公开(公告)日：2014-08-28
申请号：US14190908
申请日：2014-02-26
Applicant: Seiko Instruments Inc.
Inventor： Toshiyuki KOIKE
IPC: H02J7/00
CPC classification number: H02J7/0034
Abstract: Provided is a charge and discharge control circuit and a battery device which ensure high safety, even when a charger is reversely connected. The charge and discharge control circuit includes a consumption current increase circuit for supplying a current from a power supply terminal to a ground terminal, the consumption current increase circuit including a switch circuit configured to be turned on in response to a detection signal from a charger reverse connection detection circuit, which indicates that a charger is reversely connected.
Abstract translation: 提供了一种充电和放电控制电路以及确保高安全性的电池装置，即使在充电器反向连接的情况下也是如此。 充放电控制电路包括用于将电流从电源端子提供给接地端子的消耗电流增加电路，所述消耗电流增加电路包括响应于来自充电器反相器的检测信号而被接通的开关电路 连接检测电路，表示充电器反向连接。
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公开(公告)号：US08817544B2
公开(公告)日：2014-08-26
申请号：US13746859
申请日：2013-01-22
Applicant: Seiko Instruments Inc.
Inventor： Yutaka Sato
Abstract: Provided is a readout circuit for a non-volatile memory device, which has a large readout margin for distinguishing between 0 and 1 of data and has a small circuit area. A voltage output from a single bias circuit is applied to a gate of a memory element and a gate of an NMOS transistor serving as a reference current source to be compared with a current flowing through the memory element. Thus, the gates are controlled by the same voltage, and hence characteristics fluctuations in the operating temperature range and the operating power supply voltage range are reduced. Therefore, a large readout margin for distinguishing 0 and 1 of data can be obtained, resulting in a simplified circuit configuration.
Abstract translation: 提供一种用于非易失性存储器件的读出电路，其具有用于区分数据的0和1之间的大的读出余量并且具有小的电路面积。 来自单个偏置电路的电压输出被施加到存储元件的栅极和用作参考电流源的NMOS晶体管的栅极，以与流过存储元件的电流进行比较。 因此，栅极由相同的电压控制，因此工作温度范围和工作电源电压范围的特性波动减小。 因此，可以获得用于区分数据0和1的大的读出余量，导致简化的电路配置。
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