公开(公告)号：EP3076193B1

公开(公告)日：2024-05-08

申请号：EP16160631.4

申请日：2016-03-16

IPC: G01R19/175 ,  G01R19/00 ,  G01R35/00

CPC classification number: G01R35/005 ,  G01R19/0092 ,  G01R19/175 ,  G01R31/006

公开(公告)号：EP3362803A1

公开(公告)日：2018-08-22

申请号：EP16791093.4

申请日：2016-10-12

Applicant: Tyco Electronics (Shanghai) Co. Ltd.

Inventor： CHEN, Minjie ,  FAN, Mingjie

IPC: G01R19/175 ,  G01R21/133

CPC classification number: G01R19/175 ,  G01R21/133 ,  G01R31/28

Abstract: An alternating current load detection circuit comprises a first resistor connected in parallel to a load circuit, a diode full bridge circuit connected in series to the load circuit, a filter capacitor connected in parallel to the diode full bridge circuit, a second resistor, and a photoelectric coupler connected in series to the diode full bridge circuit. The photoelectric coupler and the diode full bridge circuit are connected in parallel to the second resistor. The diode full bridge circuit includes a first diode, a second diode having a positive electrode electrically connected to a negative electrode of the first diode, a third diode having a negative electrode electrically connected to a positive electrode of the first diode, and a fourth diode having a positive electrode electrically connected to a negative electrode of the second diode and a negative electrode electrically connected to a positive electrode of the third diode.

公开(公告)号：EP2421110B1

公开(公告)日：2018-08-15

申请号：EP11354036.3

申请日：2011-07-05

Applicant: Schneider Electric Industries SAS

Inventor： Verneau, Guillaume

IPC: H02H3/08 ,  H02H3/347 ,  G01R31/02 ,  G01R31/08 ,  G01R19/175 ,  H02H3/34

CPC classification number: H02H3/081 ,  G01R19/175 ,  G01R31/025 ,  G01R31/086 ,  H02H3/34

公开(公告)号：EP3146804A4

公开(公告)日：2018-02-28

申请号：EP15795705

申请日：2015-05-20

Applicant: GERARD LIGHTING HOLDINGS PTY LTD

Inventor： VANDERZON JAMES

IPC: H05B39/02 ,  G01R19/165 ,  G05F5/00 ,  H02M1/08 ,  H02M7/00 ,  H03K3/2893 ,  H03K5/1536 ,  H05B39/04

CPC classification number: H05B33/0845 ,  G01R19/16566 ,  G01R19/1659 ,  G01R19/175 ,  H02M1/083 ,  H02M1/44 ,  H02M5/293 ,  H02M2001/0058 ,  H02M2005/2935 ,  H03K3/2893 ,  H03K3/2897 ,  H03K5/1536 ,  H05B33/0815 ,  H05B39/02 ,  H05B39/044 ,  Y02B70/1491

Abstract: A zero-crossing detection circuit for a trailing edge phase control dimmer circuit for controlling alternating current (AC) power to a load, wherein the circuit includes: a switching circuit for controlling delivery of AC power to the load by conducting power to the load in an ON state and not conducting power to the load in an OFF state; a switching control circuit for controlling turn-OFF and turn-ON of the switching circuit at each cycle of the AC; and a rectifier for rectifying the AC power in the non-conduction period to generate rectified dimmer voltage to be provided to the dimmer circuit, wherein the zero-crossing detection circuit includes a current sink circuit; wherein the current sink circuit has a low impedance at low instantaneous AC voltages; a comparator circuit configured to detect zero crossings of a first threshold value of the rectified dimmer voltage.

公开(公告)号：EP2995963A4

公开(公告)日：2017-04-12

申请号：EP14810727

申请日：2014-05-12

Applicant: ZTE CORP

Inventor： WANG JING ,  ZHANG JUNMING ,  FAN JIE ,  ZHOU JIANPING

IPC: G01R19/175 ,  H02M1/42

CPC classification number: H02M1/42 ,  G01R19/175 ,  H02M1/4233 ,  H02M7/219 ,  H02M2001/0009 ,  Y02B70/126 ,  Y02P80/112

Abstract: Disclosed are a current zero-cross detection device, zero-cross current signal acquisition circuit and totem pole bridgeless circuit system. The current zero-cross detection device includes a current transformer, first sampling switch, second sampling switch, sampling resister, comparator. The current transformer includes a primary winding and a secondary winding; the primary winding is connected to a circuit to be detected; two ends of the secondary winding are connected respectively to drain electrodes of the first and second sampling switches; source electrodes of first and second sampling switches are connected to ground; two ends of the sampling resistor are connected respectively to the drain electrode and source electrode of the second sampling switch; the negative input end of the comparator is connected to the drain electrode of the second sampling switch, its positive input end is connected to a reference voltage; the first and second sampling switches are in ON or OFF state.

Abstract translation: 公开了一种当前的零交叉检测装置，零交叉电流信号采集电路和图腾柱无桥电路系统。 目前的零交叉检测装置包括电流互感器，第一采样开关，第二采样开关，采样电阻，比较器。 电流互感器包括初级绕组和次级绕组; 初级绕组连接到要检测的电路; 次级绕组的两端分别连接到第一和第二采样开关的漏电极; 第一和第二采样开关的源电极连接到地; 采样电阻的两端分别连接到第二采样开关的漏电极和源电极; 比较器的负输入端连接到第二采样开关的漏电极，其正输入端连接到参考电压; 第一和第二采样开关处于ON或OFF状态。

公开(公告)号：EP2977772A4

公开(公告)日：2016-12-28

申请号：EP13896632

申请日：2013-11-01

Applicant: INFORMETIS CORP

Inventor： TADANO TARO

IPC: G01R21/06 ,  G01R19/175 ,  G01R19/25

CPC classification number: G01R19/2509 ,  G01R19/175

Abstract: Operation conditions of a plurality of electric devices are estimated in detail at a remote location. A signal processing system according to the present invention includes: a measurement apparatus that measures current and voltage which are supplied to a plurality of electric devices from a power supply; and a processing apparatus that is connected to the measurement apparatus through a communication channel and estimates operation conditions of the respective electric devices from a measurement result of the measurement apparatus. The measurement apparatus includes a detection unit that detects analog waveform data of the current and the voltage which are supplied to the electric devices, a conversion unit that samples the analog waveform data detected by the detection unit on the basis of a predetermined sampling frequency and converts the sampled analog waveform data into digital waveform data, and a transmission unit that transmits the digital waveform data to the processing apparatus. The processing apparatus includes a reception unit that receives the digital waveform data transmitted from the transmission unit, a storage unit that stores the digital waveform data received by the reception unit, a separation unit that separates the digital waveform data stored in the storage unit into pieces of digital waveform data for the respective electric devices, and an operation estimation unit that analyzes the pieces of digital waveform data separated by the separation unit and estimates the operation conditions of the respective electric devices.

公开(公告)号：EP2863234A1

公开(公告)日：2015-04-22

申请号：EP13290248.7

申请日：2013-10-17

Applicant: NXP B.V.

Inventor： David-Grignot, Stéphane ,  Latorre, Laurent ,  Azais, Florence ,  Lefevre, Francois

IPC: G01R29/26

CPC classification number: G01R29/26 ,  G01R19/175 ,  G01R31/31709

Abstract: An apparatus and method is provided for measuring the phase noise of an analogue ac signal. A 1-bit digitizer generates an oversampled 1 bit serial bit stream. This is analysed to identify crossing points in the original signal based on transitions in the 1 bit serial bit stream over a number of periods of the analogue ac signal. A first period or frequency is based on successive crossing points associated with a rising analogue ac signal and a second period or frequency is derived from successive crossing points associated with a falling analogue ac signal. A phase noise level can then be calculated. This provides a low cost and fast phase noise test.

Abstract translation: 提供了一种用于测量模拟交流信号的相位噪声的装置和方法。 1位数字转换器产生过采样的1位串行位流。 这被分析以基于模拟交流信号的多个周期中的1比特串行比特流中的跃迁来识别原始信号中的交叉点。 第一周期或频率基于与上升模拟交流信号相关联的连续交叉点，并且第二周期或频率从与下降的模拟交流信号相关联的连续交叉点导出。 然后可以计算相位噪声电平。 这提供了低成本和快速的相位噪声测试。

公开(公告)号：EP2712081A4

公开(公告)日：2014-10-29

申请号：EP12868522

申请日：2012-10-29

Applicant: HUAWEI TECH CO LTD

Inventor： ZOU JIANLONG ,  XI YONG

IPC: H03K3/78

CPC classification number: H03L7/08 ,  G01R19/175 ,  H02J3/40 ,  H03K5/1536

公开(公告)号：EP2099132A2

公开(公告)日：2009-09-09

申请号：EP09380028.2

申请日：2009-02-20

Applicant: Simon Tech S.L.

Inventor： Codina, Maria Cristina Moret

IPC: H03K5/1536

CPC classification number: H03K5/1536 ,  G01R19/175 ,  H03K17/133 ,  H03K17/6874

Abstract: Device for regulating the electric feeding of a charge (1) through the alternating current, with at least some serially opposed switching elements (3) or a switching network, and a unit for controlling (2) said switching elements (3). The device comprises a comparator (5) of the saturation voltage "V CEsat " of the switching elements (3), associated to an attenuation network (8) in an input terminal, insofar as in the other input terminal there is a voltage generator having the reference "V ref " disposed between the collector and emitter "V ce " corresponding to an "I ce " current equal to zero, in order to determine the moment of null circulation and current due to said switching elements (3) through the fall of "V CEsat " below "V ref ", determining a current zero-crossing signal to the control unit (2).

Abstract translation: 用于通过交流电调节电荷（1）的馈电与至少一些串行对置的开关元件（3）或开关网络的装置，以及用于控制（2）所述开关元件（3）的单元。 该装置包括与输入端子中的衰减网络（8）相关联的开关元件（3）的饱和电压“V CEsat”的比较器（5），只要在另一个输入端子中存在电压发生器，该电压发生器具有 设置在对应于等于零的“I ce”电流的集电极和发射极“V ce”之间的参考“V ref”，以便确定由于所述开关元件（3）通过下降引起的零循环和电流的瞬间 在“V ref”之下的“V CEsat”，确定到控制单元（2）的当前过零信号。

公开(公告)号：EP1326081A3

公开(公告)日：2008-12-10

申请号：EP02028867.6

申请日：2002-12-23

Applicant: CANON KABUSHIKI KAISHA

Inventor： Nakata, Yasuhiro, c/oCanon Kabushiki Kaisha ,  Ito, Noriyuki, c/oCanon Kabushiki Kaisha

IPC: G01R19/175 ,  H02M1/08 ,  H03K5/1536

CPC classification number: H03K5/1536 ,  G01R19/175 ,  H02M1/083

Abstract: In a power supply device including a full-wave rectifying and smoothing circuit powered from a commercial AC power supply via two power supply lines, a switching regulator for separating and stepping down the output from the full-wave rectifying and smoothing circuit to output a desired DC voltage, and two capacitors (C12,C13) after the full-wave rectifying and smoothing circuit for the terminal noise suppression purpose, a zero-cross detection circuit includes a transistor (Q41) of which the emitter is connected to the low-voltage output terminal of the full-wave rectifying and smoothing circuit for outputting a zero-cross detection signal from the collector; a first resistor (R43) is connected between the base and emitter of the transistor; a second resistor (R41) is connected between one of the power supply lines and the base of the transistor; and a third resistor (R42) is connected between the other power supply line and the emitter of the transistor.