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21. 发明申请

US20160377741A1 SIGNAL PROCESSOR AND RADIATION DETECTION DEVICE 有权
标题翻译：信号处理器和辐射检测装置
公开(公告)号：US20160377741A1
公开(公告)日：2016-12-29
申请号：US15259835
申请日：2016-09-08
申请人： Kabushiki Kaisha Toshiba
发明人： Hideyuki FUNAKI , Shunsuke KIMURA , Go KAWATA , Tetsuro ITAKURA , Masanori FURUTA
IPC分类号： G01T1/20 , G01R19/175
CPC分类号： G01T1/2018 , G01R19/175 , G01T1/17 , G01T1/171
摘要： According to an embodiment, a signal processor includes an integrator, a differentiator, a zero cross detector, a pile-up detector, an event interval detector, a counter, and a creator. The integrator is configured to calculate charge of current from a photoelectric converter for an incident radiation. The differentiator is configured to calculate a differential value of the current. The zero cross detector is configured to detect a zero cross of the differential value. The pile-up detector is configured to detect pile-up of the current based on the zero cross. The event interval detector is configured to detect, based on the zero cross and pile-up, an event interval of the radiation entering. The counter is configured to count, based on the charge and pile-up, the respective numbers of events according to the charge and the event interval. The creator is configured to create histograms for the numbers of events.
摘要翻译：根据实施例，信号处理器包括积分器，微分器，零交叉检测器，堆积检测器，事件间隔检测器，计数器和创建器。积分器被配置为从入射辐射的光电转换器计算电流的电荷。微分器被配置为计算电流的微分值。零交叉检测器被配置为检测差分值的零交叉。堆积检测器被配置为基于零交叉检测电流的堆积。事件间隔检测器被配置为基于零交叉和堆积检测辐射进入的事件间隔。该计数器被配置为根据费用和事件间隔根据收费和堆积来计算各个事件的数量。创建者被配置为为事件数创建直方图。

22. 发明申请

US20160371572A1 POWER DETECTION DEVICE, IMAGE FORMING APPARATUS, AND POWER DETECTION METHOD 有权
标题翻译：功率检测装置，图像形成装置和功率检测方法
公开(公告)号：US20160371572A1
公开(公告)日：2016-12-22
申请号：US14954291
申请日：2015-11-30
申请人： FUJI XEROX CO., LTD.
发明人： Takaki SAIKI , Seiji HONDA , Tomokazu AKUTA
IPC分类号： G03G15/00
CPC分类号： G06K15/4055 , G01R19/175 , G01R21/006 , G01R21/06 , G03G15/2039 , G03G15/80 , G06K15/129 , G06K15/406 , H02H9/001 , Y02B70/126
摘要： A power detection device includes a first zero-crossing detector, a current detector, and a second zero-crossing detector. The first zero-crossing detector detects zero-crossing timing of an alternating voltage of power supplied from a commercial power supply and outputs a voltage zero-crossing signal. The current detector detects current of the power. The second zero-crossing detector detects zero-crossing timing of the current detected by the current detector and outputs a current zero-crossing signal. A power factor is obtained based on a phase difference between the voltage zero-crossing signal and the current zero-crossing signal, and active power is calculated based on a root-mean-square value of the alternating voltage, a root-mean-square value of the current, and the obtained power factor.
摘要翻译：功率检测装置包括第一过零检测器，电流检测器和第二过零检测器。第一个过零检测器检测从商用电源提供的电力的交流电压的过零时间，并输出电压过零信号。电流检测器检测电流。第二过零检测器检测由电流检测器检测到的电流的过零定时，并输出电流过零信号。基于电压过零信号和电流过零信号之间的相位差获得功率因数，并且基于交流电压的均方根值计算有功功率，均方根电流值，以及所获得的功率因数。

23. 发明授权

US09325263B1 Sensorless rotor angle detection circuit and method for a permanent magnet synchronous machine 有权
标题翻译：用于永磁同步电机的无传感器转子角度检测电路及方法
公开(公告)号：US09325263B1
公开(公告)日：2016-04-26
申请号：US14533330
申请日：2014-11-05
申请人： STMicroelectronics S.r.l.
发明人： Dino Costanzo , Giacomo Scelba , Giuseppe Scarcella
IPC分类号： H02P6/16 , H02P6/18
CPC分类号： G01R19/175 , H02P6/183 , H02P21/18
摘要： An estimate of the initial position of a rotor is made by monitoring sensed motor current signals which are amplitude and phase modulated with the rotor flux position in response to a high frequency voltage signal injection. The motor current signals are envelope detected to determine zero crossing points. Samples are taken of the motor current signals at positive and negative offsets from the zero crossing point, with the samples processed to identify a direction of the rotor flux axis. Further samples of at least one motor current signal are taken with respect to a certain phase reference, and the samples compared to resolve a polarity of the rotor flux axis which is indicative of the angular position of the rotor.
摘要翻译：通过监视与响应于高频电压信号注入的转子磁通位置幅度和相位调制的感测的电动机电流信号，来估计转子的初始位置。电机电流信号被包络检测以确定过零点。从零交叉点以正负偏移获取电机电流信号的样本，处理样品以识别转子磁链轴的方向。至少一个电动机电流信号的进一步采样是相对于某一相位参考，并且所述样本被比较以解析转子磁通轴的极性，其表示转子的角位置。

24. 发明申请

US20150155778A1 CONTROL DEVICE FOR POWER CONVERSION CIRCUIT 有权
标题翻译：电源转换电路的控制装置
公开(公告)号：US20150155778A1
公开(公告)日：2015-06-04
申请号：US14404890
申请日：2013-05-31
申请人： NAGASAKI UNIVERSITY , PANASONIC CORPORATION
发明人： Fujio Kurokawa , Masahito Ohnishi
IPC分类号： H02M3/156 , H02M1/42
CPC分类号： H02M3/156 , G01R19/175 , H02M1/42 , H02M1/4225 , H02M2001/0009 , H02M2001/4291 , Y02B70/126
摘要： The control device 1A includes an on-time information generation circuit 11, a zero cross detecting circuit 12 and a PWM signal generation circuit 13. The on-time information generation circuit 11 inputs at least a power converter circuit information including an output voltage value of a power converter circuit 2, and generates the on-time information about a switch 212. The zero cross detecting circuit 12 detects a time when a inductor current becomes zero by inputting a voltage between both terminals of the inductor 214, and generates a zero cross detection signal when the inductor current became zero. The PWM signal generation circuit 13 inputs the on-time information and the zero cross detection signal, and generates a turn on signal and a turnoff signal. The zero cross detecting circuit 12 has an edge detecting circuit. The zero cross detecting circuit 12 generates a zero cross detection signal when the edge detecting circuit detected an edge appearing in a voltage between both terminals of the inductor 214. The PWM signal generation circuit 13 generates a turn-on signal when a zero cross detection signal was input. The PWM signal generation circuit 13 generates the turn-off signal, when a time based on the on-time information passed, In this way, by the present invention, a change of the inductor current is acquired precisely, and a good critical mode control is carried out.
摘要翻译：控制装置1A包括导通时间信息生成电路11，零交叉检测电路12和PWM信号生成电路13.接通时间信息生成电路11至少输入包含输出电压值功率转换器电路2，并且产生关于开关212的导通时间信息。零交叉检测电路12通过在电感器214的两个端子之间输入电压来检测电感器电流变为零的时间，并产生零交叉当电感电流变为零时检测信号。 PWM信号生成电路13输入导通时间信息和过零检测信号，并产生导通信号和截止信号。零交叉检测电路12具有边缘检测电路。零交叉检测电路12当边缘检测电路检测到出现在电感器214的两个端子之间的电压中的边沿时产生零交叉检测信号。当信号为零时，PWM信号产生电路13产生导通信号被输入。当基于接通时间信息的时间时，PWM信号产生电路13产生关断信号。以这种方式，通过本发明，精确地获取电感器电流的变化，并且获得良好的临界模式控制完成了。

25. 发明授权

US08981693B2 Method and apparatus for determining a zero crossing of a phase current of an electronically commutated electrical machine, in particular for determining a rotor position of the electrical machine 有权
标题翻译：用于确定电子换向电机的相电流的零交叉的方法和装置，特别是用于确定电机的转子位置
公开(公告)号：US08981693B2
公开(公告)日：2015-03-17
申请号：US13700748
申请日：2011-04-14
申请人： David Fricker
发明人： David Fricker
IPC分类号： H02P6/18 , G01R19/175
CPC分类号： H02P6/18 , G01R19/175 , H02P6/182
摘要： A method for determining a time for a zero crossing of a phase current in a polyphase electrical machine (2). The method including driving a driver circuit (31; 50) for providing phase voltages to operate the electrical machine (2); deactivating a pulse-width-modulated driving by at least one power switch (36, 37; 52, 53), such that no potential is applied to connecting nodes (AI, A2, B1, B2) by the driver circuit (31; 50), at least during a time segment in each cycle of the pulse width modulation; detecting a diode voltage via a freewheeling diode, with which the deactivated power switch (36, 37; 52, 53) has been provided, within the time segment; and fixing the time for the zero crossing of the phase current as the time after which there is no longer a diode voltage present across the freewheeling diode (40; 54) within the time segment.
摘要翻译：一种用于确定多相电机（2）中的相电流的零交叉时间的方法。该方法包括驱动用于提供相电压以驱动电机（2）的驱动电路（31; 50）; 通过至少一个电源开关（36,37; 52,53）去激活脉冲宽度调制的驱动，使得驱动电路（31; 50）不向连接节点（AI，A2，B1，B2）施加电压），至少在脉冲宽度调制的每个周期的时段中; 在时间段内通过续流二极管检测二极管电压，通过该续流二极管提供去激活功率开关（36,37; 52,53）; 并且将所述相电流过零点的时间固定为在所述时间段内的所述续流二极管（40; 54）上不存在二极管电压的时间。

26. 发明申请

US20150070034A1 CAPACITIVE PARAMETRIC ZERO CROSSING DETECTOR DEVICE, CIRCUIT AND METHOD 有权
标题翻译：电容参数零交叉检测器设备，电路和方法
公开(公告)号：US20150070034A1
公开(公告)日：2015-03-12
申请号：US14021910
申请日：2013-09-09
申请人： Ching Chu , Ben Choy , Andy Tu
发明人： Ching Chu , Ben Choy , Andy Tu
IPC分类号： G01R27/26
CPC分类号： H03K5/1536 , G01R19/175
摘要： A capacitive parametric zero crossing detection circuit has a nonlinear voltage controlled capacitive device coupled to an input voltage to convert a zero crossing current pulse into zero crossing voltage signal.
摘要翻译：电容参数过零检测电路具有耦合到输入电压的非线性压控电容器件，以将过零电流脉冲转换为过零电压信号。

27. 发明授权

US08912468B2 Zero-crossing detector circuit and image forming apparatus having the same 有权
标题翻译：过零检测器电路及其成像装置
公开(公告)号：US08912468B2
公开(公告)日：2014-12-16
申请号：US13560201
申请日：2012-07-27
申请人： Katsumi Inukai
发明人： Katsumi Inukai
IPC分类号： H05B1/02 , G01R19/175 , H02M1/08 , H02M7/219
CPC分类号： G01R19/175 , H02M1/083 , H02M2007/2195 , Y02B70/1408
摘要： A zero-crossing detector circuit includes: a first capacitor including a first electrode configured to connect to one end of an AC power supply and a second electrode; a second capacitor including a first electrode configured to connect to the other end of the AC power supply and a second electrode; a current path, which is connected in series between the second electrode of the first capacitor and the second electrode of the second capacitor, and which is connected to a reference potential, and which generates a second-electrode-side voltage when the AC current passes through the current path; a signal converting circuit, which is connected to the AC power supply to receive the second-electrode-side voltage and then converts the second-electrode-side voltage into a pulse signal; and a detecting unit, which detects a pulse period of the pulse signal, which and detects zero-crossing points by using the pulse period.
摘要翻译：一种过零检测器电路包括：第一电容器，包括被配置为连接到AC电源和第二电极的一端的第一电极; 第二电容器，包括被配置为连接到所述AC电源的另一端的第一电极和第二电极; 电流路径串联连接在第一电容器的第二电极和第二电容器的第二电极之间，并且连接到参考电位，并且当交流电流通过时产生第二电极侧电压通过当前路径; 信号转换电路，连接到AC电源以接收第二电极侧电压，然后将第二电极侧电压转换为脉冲信号; 以及检测单元，其检测脉冲信号的脉冲周期，并且通过使用脉冲周期来检测过零点。

28. 发明申请

US20140340065A1 Adaptive Low-Power Zero-Cross Comparator for Discontinuous Current Mode Operated Switching Mode Power Supply 有权
标题翻译：用于不连续电流模式的自适应低功耗零交叉比较器操作的开关模式电源
公开(公告)号：US20140340065A1
公开(公告)日：2014-11-20
申请号：US13895575
申请日：2013-05-16
申请人： Dialog Semiconductor GmbH
发明人： Jindrich Svorc , Martin Faerber
IPC分类号： H02M3/158
CPC分类号： H02M3/1588 , G01R19/175 , H02M3/156 , H02M2001/0009 , H02M2001/0038 , H02M2001/0058
摘要： A time off estimator and an adaptive controller implemented on an integrated circuit to emulate current dependent zero crossing circuitry to permit improved performance of a buck type switching mode power supply. The time off estimator circuit is enhanced by an automatic correction circuit for the timing of a zero crossing where energy to a reference capacitor returns to zero and is turned off awaiting the next cycle where the capacitor is again charged and discharged.
摘要翻译：一个时间估计器和一个在集成电路上实现的自适应控制器，以模拟电流依赖的过零电路，以允许改进降压型开关模式电源的性能。通过用于零参考的定时的自动校正电路增强了关断估计器电路，其中参考电容器的能量返回到零，并且在等待电容器再次充电和放电的下一个周期时被关断。

29. 发明申请

US20140153301A1 AC SIGNAL DETECTOR AND THE METHOD THEREOF 有权
标题翻译：交流信号检测器及其方法
公开(公告)号：US20140153301A1
公开(公告)日：2014-06-05
申请号：US13931749
申请日：2013-06-28
申请人： Chengdu Monolithic Power Systems Co., Ltd.
发明人： Siran Wang , Yike Li , Kun Yi , Yuancheng Ren , Junming Zhang , En Li
IPC分类号： G01R19/15 , H02H7/125
CPC分类号： G01R19/175 , G01R31/42
摘要： An AC signal detector having: a rectify circuit having a first input terminal and a second input terminal configured to receive an AC signal, and an output terminal configured to provide a rectified signal based on the AC signal; a detecting circuit having an input terminal coupled to the output terminal of the rectify circuit to receive the rectified signal, and an output terminal configured to provide a square signal based on the rectified signal; and an unplug indicate circuit having an input terminal coupled to the detecting circuit to receive the square signal, and an output terminal configured to provide an unplug indicate signal based on the square signal.
摘要翻译：一种AC信号检测器，具有：具有第一输入端和被配置为接收AC信号的第二输入端的整流电路，以及输出端，被配置为基于所述AC信号提供整流信号; 检测电路，其具有耦合到整流电路的输出端以接收整流信号的输入端子，以及输出端子，被配置为基于整流信号提供平方信号; 以及拔出指示电路，其具有耦合到所述检测电路的输入端子以接收所述平方信号，以及输出端子，被配置为基于所述平方信号提供拔出指示信号。

30. 发明申请

US20140132246A1 CIRCUIT AND METHOD FOR DETECTING ZERO-CROSSINGS AND BROWNOUT CONDITIONS ON A SINGLE-PHASE OR MULTI-PHASE SYSTEM 有权
标题翻译：用于检测单相或多相系统上的零交叉和欠压条件的电路和方法
公开(公告)号：US20140132246A1
公开(公告)日：2014-05-15
申请号：US14030420
申请日：2013-09-18
申请人： DIEHL AKO STIFTUNG & CO. KG
发明人： MATHEW SCHWIND
IPC分类号： G01R25/00
CPC分类号： G01R25/00 , G01R19/16538 , G01R19/175
摘要： A circuit configuration detects zero-crossings and/or a brownout condition. The circuit configuration contains a zero-crossing detection circuit, a brownout detection circuit, an isolation and digitization circuit connected to the zero-crossing detection circuit and the brownout detection circuit, and a filtering circuit connected to the isolation and digitization circuit. The single circuit configuration can be used for detecting zero-crossings of single-phase and multi-phase systems as well as ascertaining a brownout condition of either the single-phase or the multi-phase systems.
摘要翻译：电路配置检测过零点和/或掉电状况。电路配置包括过零检测电路，掉电检测电路，连接到过零检测电路和掉电检测电路的隔离和数字化电路，以及连接到隔离和数字化电路的滤波电路。单电路配置可用于检测单相和多相系统的过零点，以及确定单相或多相系统的掉电条件。

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