子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 21 | 确定时间间隔的方法、开关器件及功率变换器 | CN201410440204.7 | 2014-09-01 | CN104426409A | 2015-03-18 | 安东尼·约翰·韦伯斯特; 西蒙·大卫·哈特 |
| 本发明提供了一种确定时间间隔的方法、开关器件及功率变换器。该方法用于确定功率变换器中开关器件的开关事件之间的时间间隔，该开关器件耦合到直流DC电源以便以特定的开关频率提供交流AC电流输出，该方法包括：选择开关器件的第一开关事件和随后的第二开关事件之间的时间间隔的初始长度；当所述时间间隔达到初始长度时，获取开关器件的电流测量值；改变所述时间间隔的长度；当所述时间间隔的长度变化时，获得开关器件的电流测量值；使用所获得的电流测量值来检测开关器件中电流的产生；通过所述时间间隔的长度的变化和所获得的电流测量值，确定当开关器件中产生电流时的时间间隔的长度tg。 | ||||||
| 22 | 数据转换装置、数字传送装置与数字转换方法 | CN201410216898.6 | 2014-05-21 | CN104184452A | 2014-12-03 | 陈仰鹃; 陈志荣; 张湘辉 |
| 本发明提供了一种数据转换装置、数字传送装置与数字转换方法，该数据转换装置包含有：一数据取样电路，用来根据一时钟信号来对一数字信号进行高频取样以产生一高频取样信号；一电压电平产生电路，用来产生一可调整电压；以及一信号转换电路，用来根据该可调整电压以及该高频取样信号来产生一转换信号。本发明可以将最小有效位的动态功率延伸至更小的范围，从而可以具有较大的动态功率范围。 | ||||||
| 23 | 可重组电路区块以及将电路区块进行组态的方法 | CN201410216109.9 | 2014-05-21 | CN104184451A | 2014-12-03 | 谢明谕; 柯尔拉·穆罕默德; 张堡棋 |
| 本发明提供一种可重组电路区块以及将具有速率转换电路与处理电路的电路区块进行组态的方法。可重组电路区块包含速率转换电路、处理电路、第一非同步介面电路、第二非同步介面电路以及可控式互连电路。该速率转换电路将第一输入信号转换为第一输出信号。该处理电路对第二输入信号进行处理以产生第二输出信号。该第一非同步介面电路输出与该第一输出信号不同步的第三输出信号。该第二非同步介面电路输出与该第二输出信号不同步的第四输出信号。该可控式互连电路于具有第一互连组态时，传输该第三输出信号至该处理电路以作为该第二输入信号，以及于具有第二互连组态时，传输该第四输出信号至该速率转换电路以作为该第一输入信号。 | ||||||
| 24 | 切换式功率放大器与用来控制该切换式功率放大器的方法 | CN201410215658.4 | 2014-05-21 | CN104184423A | 2014-12-03 | 陈仰鹃; 张湘辉 |
| 本发明提供了一种切换式功率放大器与用来控制该切换式功率放大器的方法，其中，切换式功率放大器包含有：一第一晶体管，受控于一第一数字信号以选择性地输出一第一输出信号；一第二晶体管，受控于一第二数字信号以选择性地输出一第二输出信号；以及一控制电路，用来依据该第一数字信号以及一第三数字信号来产生该第二数字信号；其中该第一输出信号以及该第二输出信号被输出于该第一晶体管与该第二晶体管的一共同连接端点上。本发明的切换式功率放大器及其控制方法，解决现有技术中切换式功率放大器产生漏电流而导致功率消耗的问题。 | ||||||
| 25 | 数字信号升频装置以及数字信号升频方法 | CN201410215712.5 | 2014-05-21 | CN104184417A | 2014-12-03 | 陈仰鹃; 王琦学; 张湘辉; 林柏宇 |
| 本发明公开了一种数字信号升频装置以及数字信号升频方法，其中，数字信号升频装置包含有：一时脉产生电路，产生一参考时脉信号；一调整电路，耦接至该时脉产生电路，依据该参考时脉信号产生一第一时脉信号以及一第二时脉信号；一基频电路，耦接至该调整电路，接收该第一时脉信号，该基频电路进一步依据该第一时脉信号来产生一数字输出信号；一取样电路，耦接至该调整电路以及该基频电路，接收该第二时脉信号以及该数字输出信号，其中该第二时脉信号以及该数字输出信号为非重叠信号；其中该取样电路会基于该第二时脉信号来取样该数字输出信号，然后将该取样后数字输出信号合并产生一合并后数字信号。 | ||||||
| 26 | 非侵入式电力负荷监测与分解的电流模式匹配方法 | CN201210466810.7 | 2012-11-16 | CN103001230B | 2014-10-15 | 余贻鑫; 刘博; 王兵 |
| 本发明公开了一种非侵入式电力负荷监测与分解的电流模式匹配方法，在建立负荷特征数据库的基础上，包括用电器登记和负荷状态字空间初始化，数据采集与预处理，基于查表的可行状态字空间搜索，电流模式（电流谐波特征）最优匹配和监测结果输出。由于本方法仅依靠电器正常工作时固有的稳态电流模式的统计特性和稳态有功功率、无功功率，从而通用性很强。解决了现有技术中存在的如果不同电器监测的电流波形相似程度较大，总功率分解精度就会下降的问题，提高了分解精度，而且可以准确辨识电器的不同工作状态；同时，由于本方法利用查表法而不是优化算法完成监测，降低了对监测系统中微处理器计算性能的要求，可有效降低成本。 | ||||||
| 27 | 用于测量高频医疗设备产生的信号的频率的系统和方法 | CN201310267859.4 | 2013-06-28 | CN103529291A | 2014-01-22 | W·L·莫鲁尔; R·J·贝汉克二世; S·E·M·弗拉舒尔; J·L·杰恩森 |
| 本发明公开了用于利用低频测量系统，来确定由高频医疗设备产生的输出信号的特性的系统和相应方法。数字测量系统包括相互耦接的振荡器、混频器和控制器。振荡器提供具有第二频率的参考信号。混频器基于输出信号和参考信号，来产生下变频信号。控制器随后基于下变频信号，来确定输出信号的特性(例如，频率或相位)。模拟测量系统包括具有中心频率的滤波器、整流器和控制器。滤波器对输出信号进行滤波，整流器对滤波信号进行整流。控制器对整流信号进行采样，并基于整流信号的电平来确定输出信号的特性。参考信号控制器可基于确定的输出信号的频率和/或相位，来调整输出信号的特性。 | ||||||
| 28 | 测量有关风力涡轮发电机转换器单元的波形频率变化率的方法和模块 | CN201310161183.0 | 2013-05-03 | CN103383411A | 2013-11-06 | 弗朗西斯科·希梅内斯·邦迪亚 |
| 一种用于测量与风力涡轮发电机的转换器单元相关的波形的频率变化率的方法和模块，包括：测量所述波形的频率变化率的瞬时值；计算所述频率变化率的第一滤波值，所述第一滤波值具有好的准确度和低的时间响应；计算所述频率变化率的第二滤波值，所述第二滤波值具有好的时间响应和低的准确度，比较所述第一和第二滤波值，并且根据所述比较选择所测得的变化率的输出值基于所述第一滤波值还是基于所述第二滤波值。 | ||||||
| 29 | 通过阻抗谱表征电系统的特性的方法 | CN201080017205.0 | 2010-02-22 | CN102439471A | 2012-05-02 | C·图尔平; A·拉库通德赖尼比 |
| 本发明涉及通过阻抗谱更精确地表征电系统的特性的方法。所述方法包括：对所述电系统施加包括正弦扰动的序列的输入信号，以扫描频率的源系列(A)；响应于针对所施加的各个扰动的所述输入信号，测量所述电系统的输出信号；以及针对各个所施加的扰动、估计所述电系统的阻抗的特征量，其特征在于，施加所述扰动的序列，以轮流地扫描从所述源系列(A)得到的频率的多个子系列(A1、...、An)，所述多个子系列的各个子系列与相同的多个子系列的至少一个其它子系列交织。 | ||||||
| 30 | IDENTIFYING ELECTRICAL SOURCES OF ACOUSTIC NOISE | PCT/US2012045025 | 2012-06-29 | WO2013006465A2 | 2013-01-10 | GULLBRAND JESSICA; BELTMAN WILLEM M; SANKARANARAYANAN KARTHIK; CORDOVA JOSE A; LOPEZ CARLOS A; BAUGH ERIC |
| Systems and methods of identifying electrical sources of audible acoustic noise may involve identifying first frequency content of a circuit board, wherein the first frequency content is associated with at least one of acoustic noise and a vibration of the circuit board. Second frequency content of an electrical signal associated with the circuit board may also be identified. In addition, a coherence between the first frequency content and the second frequency content may be determined. | ||||||
| 31 | METHOD OF DETECTION OF SIGNAL HOMEOSTASIS | PCT/IB2009006299 | 2009-07-21 | WO2010010439A3 | 2010-03-25 | VAIDYA VINAY GOVIND; GURURAJA CHETHAN |
| A method for detecting steady-state convergence of signal comprising the steps of calculating derivative of signal input, calculating the arctan value of ratio of positive and negative derivatives and validation of establishment of steady state from the arctan value thereof. | ||||||
| 32 | METHOD AND DEVICE FOR MULTICHANNEL MULTIFREQUENCY ANALYSIS OF AN OBJECT | PCT/EE2007000007 | 2007-04-24 | WO2007121756A2 | 2007-11-01 | MIN MART; ANNUS PAUL; KUUSIK ALAR; LAND RAUL; PARVE TOOMAS; RONK ANTS; HAAPALAINEN ANTTI |
| A method for multichannel multifrequency analysis of an object, applying a set of excitation signals to the object and sampling the response signal from the object, using uniform and non-uniform undersampling. Non-uniform sampling of the response signal is performed, i.e., the sampling is performed for two or more different frequencies in one observation time slot. Also, uniform sampling of the response signal is performed, i.e., the sampling of a signal, corresponding to one frequency, is performed for two or more channels within one observation time slot and then sampling the same signal for another frequency for two or more channels within the next observation time slot. | ||||||
| 33 | FREQUENCY MEASUREMENT DEVICE, FREQUENCY MEASUREMENT METHOD AND UNDER FREQUENCY LOAD SHEDDING DEVICE | EP16306726.7 | 2016-12-19 | EP3220155A1 | 2017-09-20 | XING, Jinlei |
A frequency measurement device comprises a sampling unit that outputs a voltage sampling value in accordance with a voltage to be sampled and a sampling frequency; an single-cycle DFT angle shift computation unit that computes and outputs a first angle shift in accordance with the voltage sampling value; an multi-cycle DFT angle shift computation unit that computes and outputs a second angle shift in accordance with the voltage sampling value; a selection unit that selects and outputs one of the first and second angle shifts as a selected angle offset; a sampling frequency computation and outputting unit that computes a sampling frequency in accordance with the selected angle offset and outputs the same to the sampling module unit as a new sampling frequency; and a frequency measurement value computation and outputting unit that computes and outputs a frequency measurement value in accordance with the selected angle offset. |
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| 34 | APPARATUS FOR USE IN DISTURBANCE EVALUATION SYSTEMS BASED ON DISTURBANCE EXTRACTION FROM AN ELECTRICAL NETWORK | EP14809499.8 | 2014-11-18 | EP3071979A1 | 2016-09-28 | OUTRAM, John Douglas |
| Apparatus (1) for use in disturbance evaluation systems based on disturbance extraction, which apparatus (1) comprises measuring means for obtaining signal frequency both before (4) and after a disturbance (3) in an electricity network but excluding use of the disturbance transient itself, and interpolation means (5) for interpolating frequency across the disturbance interval to reflect the underlying frequency trend (9) uninfluenced by the disturbance transient. The apparatus (1) may include: (i) at least one delay means (2) for receiving at least one analogue or digital signal (6) from the electricity network; (ii) at least one first access point (P) at a first part of the delay means (2); (iii) at least one second access point (Q) at a second part of the delay means (2), and the apparatus (1) being such that: (iv) the measuring means comprises: (a) a first frequency derivation means (3) for processing a set of access point outputs from the first access point and providing at least one measure of frequency (7) after the disturbance; and (b) a second frequency derivation means (4) for processing a set of access point outputs from the second access point or a delayed output means, for providing at least one measure of frequency (8) before the disturbance; and the interpolation means (5) receives the measure of frequency (7) after the disturbance and the measure of frequency (8) before the disturbance, and provides a measure of frequency (9) as a function of time over a period of interest, which comprises the disturbance interval and either side of the disturbance interval. | ||||||
| 35 | A DEVICE FOR DETECTING A SPIKE IN ONE OF A PLURALITY OF NEURAL SIGNALS | EP14842539.0 | 2014-09-09 | EP3043700A1 | 2016-07-20 | KIM, Seong-Jin; JE, Minkyu |
| A method for determining an occurrence of a spike in one of a plurality of neural signals is provided, the spike relating to an action potential in the one of the plurality of neural signals. The method includes sampling the plurality of neural signals at a sampling frequency; extracting frequency features from each of the plurality of neural signals during sampling of the plurality of neural signals; and monitoring the extracted frequency features to determine characteristics of the one of the plurality of neural signals indicative of an occurrence of a spike. | ||||||
| 36 | Dead-time minimization in PWM driven power converters | EP14182937.4 | 2014-08-29 | EP2846447A3 | 2015-07-01 | Webster, Antony John; Hart, Simon David |
A method is provided of determining a time interval between switching events for a switching device in a power converter, the switching device being for coupling a direct current (DC) source to provide an alternating current (AC) output at a particular switching frequency. The method comprises selecting an initial length of a time interval between a first switching event and a second, subsequent switching event for the switching device and obtaining a current measurement value for the switching device when the time interval between the first switching event and the second, subsequent switching event takes said initial length. The method further comprises changing the length of the time interval between the first switching event and the second, subsequent switching event and obtaining a current measurement value for the switching device when the length of the time interval is changed. The current measurement values which have been obtained are used to detect generation of a current in the switching device. It is then determined, from the change made to the length of the time interval and the current measurement values obtained, a length (tg) of the time interval at which said generation of a current in the switching device occurs.
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| 37 | Flexible evaluation of free space over the air measurement uncertainty method and apparatus | EP13165186.1 | 2013-04-24 | EP2658152A2 | 2013-10-30 | Taylor, Carolyn |
Methods are directed towards determining a total measurement uncertainty for LME and LEE UEs. Methods include representing the at least one quantity subject to measurement as a function of at least one physically observably quantity. Methods also include obtaining a value of the at least one quantity subject to measurement. Based on the obtained values, values of the sources of uncertainty are derived.
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| 38 | PROCÉDÉ DE CARACTÉRISATION D'UN SYSTÈME ÉLECTRIQUE PAR SPECTROSCOPIE D'IMPÉDANCE | EP10704376.2 | 2010-02-22 | EP2401623A1 | 2012-01-04 | TURPIN, Christophe; RAKOTONDRAINIBE, André |
| The invention relates to a method of more precisely characterizing an electrical system by impedance spectroscopy. Said method consists in: applying an input signal comprising a sequence of sinusoidal perturbations to said electrical system, so as to scan a main series (A) of frequencies; measuring an output signal of said electrical system in response to said input signal for each of said applied perturbations; and estimating a characteristic quantity of the impedance of said electrical system for each of said applied perturbations, characterized in that the perturbations of said sequence are applied so as to scan in turn a plurality of subseries (A 1,..., A n) of frequencies obtained from said main series (A), each subseries of said plurality being interlaced with at least one other subseries of the same plurality. | ||||||
| 39 | VERFAHREN ZUM AUFFINDEN DER RESONANZFREQUENZ EINES ELEKTRISCHEN SCHWINGKREISES | EP98909355.0 | 1998-02-09 | EP0958716A1 | 1999-11-24 | LAUBENSTEIN, Rüdiger; EXNER, Ulrich; DAMERAU, Ernst; KERN, Robert |
| Disclosed is a method for determining the resonance frequency of an electric resonant circuit, specially a starting resonant circuit for high-pressure gas discharge lamps, wherein the resonant circuit is excited with various frequencies. The frequency search is carried out in a search run with individual sampling tests, wherein a set, invariable frequency is used. Each invariable frequency is selected and used according to a determined search scheme. The fist sampling test is carried out with a mean frequency (fmitt), whereby the mean frequency of the mean value is the possible minimum (fmin) and maximum (fmax) resonance frequency. The test frequency is modified in steps (+-n*Δf) for each subsequent sampling test. The resonance frequency found in a search run can be stored or optionally renewed as a learning frequency (flern) for use as a starting frequency in subsequent search runs. In an advantageous embodiment provided by the invention, the frequency search is conducted using a voltage, which is below the starting voltage, the current is measured in the resonant circuit, the maximum value of the current measured is determined and the resonance frequency occurring at maximum current is given. | ||||||
| 40 | Adaptive Vorrichtung zur Identifikation eines periodischen Signals | EP90202663.2 | 1990-10-05 | EP0422732B1 | 1996-08-21 | Muth, Mathias |
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