公开(公告)号：EP2220745B1

公开(公告)日：2018-07-11

申请号：EP08866313.3

申请日：2008-12-03

Applicant: Schneider Electric IT Corporation

Inventor： WU, Jia ,  SIMONELLI, James ,  BUSH, Matthew, F.

IPC: H02J9/06 ,  H02M1/42

CPC classification number: H02J9/062 ,  H02M1/4208 ,  H02M2001/007 ,  Y02B70/126 ,  Y02P80/112 ,  Y10T307/615 ,  Y10T307/625

Abstract: A UPS includes an AC output, power factor control circuitry; and a DC bus coupled to the power factor control circuitry where the power factor control circuitry is configured to determine a difference in instantaneous power supplied to the AC output and to adjust a voltage of the DC bus based, at least partly, on the difference. In one embodiment, the UPS includes a single phase AC input. In another embodiment, the power factor control circuitry is configured to determine a cumulative difference in instantaneous power supplied to the AC output.

公开(公告)号：EP3324536A8

公开(公告)日：2018-06-27

申请号：EP17199088.0

申请日：2017-10-30

Applicant: Delta Electronics, Inc.

Inventor： TSENG, Wei-Shuo ,  CHUANG, Chao-Chin ,  YU, Yao-Yang ,  HSIAO, Li-Wei

IPC: H02P27/06 ,  H02M7/217 ,  H02P6/28

CPC classification number: H02P29/10 ,  H02M1/32 ,  H02M1/4225 ,  H02M2001/0022 ,  H02M2001/325 ,  H02M2001/4291 ,  H02P6/085 ,  H02P6/14 ,  H02P6/28 ,  H02P23/26 ,  H02P27/06 ,  H02P2201/07 ,  Y02B70/126 ,  Y02P80/112

Abstract: An electronically commutated fan system (100) includes a conversion module (10), an inverter unit (20), and a control unit (30). The conversion module (10) receives an input power source (Vin) and converts the input power source (Vin) into a first DC power source (Vdcl). The inverter unit (20) receives the first DC power source (Vdcl) and converts the first DC power source (Vdcl) into an output power source (Vout) to make a fan (40) rotate. The control unit (30) controls a rotational speed of the fan (40) to be within a first error range (Rel) when the control unit (30) determines that an amplitude of the input power source (Vin) is varied. The control unit (30) determines that the input power source (Vin) is a DC power source or an AC power source. The conversion module (10) is controlled by the control unit (30) to convert the DC power source or the AC power source into the first DC power source (Vdcl).

公开(公告)号：EP2587651A3

公开(公告)日：2017-11-22

申请号：EP12007346.5

申请日：2012-10-25

Applicant: Sharp Kabushiki Kaisha

Inventor： Kaijima, Yoshitsugu ,  Sugawara, Yuri

IPC: H02M1/42 ,  H05K1/02 ,  H02M3/158

CPC classification number: H05K1/0203 ,  H01L2924/0002 ,  H02M1/4225 ,  H02M2003/1586 ,  H05K1/0215 ,  H05K1/0216 ,  H05K2201/066 ,  H05K2201/1003 ,  H05K2201/10166 ,  H05K2201/10174 ,  Y02B70/126 ,  Y02P80/112 ,  H01L2924/00

Abstract: A heat sink (11) comprised of a first heat dissipation portion (11a), a second heat dissipation portion (11b), and a third heat dissipation portion (11c) is mounted on a circuit board (14). Two sets of an inductor (L1, L2) that constitute an interleaved power factor correction circuit are arranged in a spatial region formed in the inside of the heat sink and are mounted on the circuit board. Two sets of a transistor (Tr1, Tr2) and a diode (D1, D2) that constitute the interleaved power factor correction circuit are attached to an outer surface of the first heat dissipation portion and are mounted on the circuit board.

Abstract translation: 包括第一散热部分（11a），第二散热部分（11b）和第三散热部分（11c）的散热器（11）安装在电路板（14）上。 构成交错功率因数校正电路的两组电感器（L1，L2）被布置在形成于散热器内部的空间区域中并安装在电路板上。 构成交错功率因数校正电路的两组晶体管（Tr1，Tr2）和二极管（D1，D2）被附接到第一散热部分的外表面并且被安装在电路板上。

公开(公告)号：EP2151061B1

公开(公告)日：2017-10-18

申请号：EP08747478.9

申请日：2008-05-02

Applicant: Cirrus Logic, Inc.

Inventor： MELANSON, John, L.

IPC: H03M3/04

CPC classification number: H02M1/4225 ,  H03M3/476 ,  Y02B70/126 ,  Y02P80/112

Abstract: A power factor correction (PFC) controller and method uses a finite state machine to adjust the duty cycle of a pulse width modulation (PWM) switching control signal. The PFC controller has a target current generator that receives the link output voltage and generates a target current proportionate to the rectified line input voltage. The PFC controller further includes a comparator which outputs a two-level current comparison result signal. The finite state machine responsive to the two-level current comparison result signal, generates a switch control signal that has a duty cycle which is adjusted for controlling the switch so that the sensed current is approximately proportionate to the rectified line input voltage, such that power factor correction is performed.

公开(公告)号：EP1257048B1

公开(公告)日：2017-10-04

申请号：EP02100456.9

申请日：2002-05-07

Applicant: Philips Lighting Holding B.V.

Inventor： Elferich, Reinhold, Philips Corp. Int. Prop. Gmbh

IPC: H02M3/335 ,  H02M7/523

CPC classification number: H02M3/33561 ,  Y02B70/1433 ,  Y02P80/112

公开(公告)号：EP3136114A4

公开(公告)日：2017-03-29

申请号：EP14889950

申请日：2014-10-28

Applicant: ZTE CORP

Inventor： LIU TAO ,  ZHOU JIANPING ,  LIN GUOXIAN ,  FAN JIE ,  LUO YONG

IPC: G01R19/25 ,  G01R19/00 ,  H02M1/42

CPC classification number: G01R19/2506 ,  G01R15/183 ,  G01R19/0092 ,  H02H7/12 ,  H02M1/4208 ,  H02M1/4225 ,  H02M2001/0009 ,  Y02B70/126 ,  Y02P80/112

Abstract: A method and device for detecting inductor current of a PFC circuit are disclosed, which relates to the field of power supply technology. The method includes: detecting a voltage on a boost inductor of a critical-conduction mode PFC circuit, and obtaining an inductor voltage detection signal (S1); converting the inductor voltage detection signal into a voltage signal whose waveform is consistent with a current waveform of the inductor to serve as an inductor current detection signal, to perform loop protection on the PFC circuit or perform over-current protection on the PFC circuit by using the inductor current detection signal (S2). In the above technical scheme, through the method for detecting the inductor voltage of the critical-conduction mode PFC circuit and indirectly obtaining the inductor current, the function of detecting the inductor current of the critical-conduction mode PFC circuit can be realized, and loop control on the system or protection control on the inductor current peak value can be achieved by using the detected inductor current of the PFC circuit.

Abstract translation: 公开了一种检测PFC电路的电感电流的方法和装置，涉及电源技术领域。 该方法包括：检测临界导通模式PFC电路的升压电感器上的电压，并获得电感器电压检测信号（S1）; 将所述电感电压检测信号转换为波形与所述电感的电流波形一致的电压信号作为电感电流检测信号，对所述PFC电路进行环路保护或对所述PFC电路进行过流保护 电感器电流检测信号（S2）。 在上述技术方案中，通过检测临界导通模式PFC电路的电感电压并间接获得电感电流的方法，可以实现检测临界导通模式PFC电路的电感电流的功能， 通过使用检测到的PFC电路的电感器电流可以实现系统的控制或电感器电流峰值的保护控制。

公开(公告)号：EP2973929A4

公开(公告)日：2017-01-04

申请号：EP14774479

申请日：2014-03-13

Applicant: HIQ SOLAR INC

Inventor： WILLIS ANDRE P ,  FINCHER CLINTON A

IPC: H02J3/18 ,  H02J3/36 ,  H02M1/42

CPC classification number: G05F1/70 ,  H02J3/1842 ,  H02M3/28 ,  H02M7/53873 ,  H02M2001/007 ,  Y02E40/22 ,  Y02P80/112

Abstract: System and method for controlling power factor correction (PFC) for three-phase AC power conveyed via a three-phase AC power grid. Currents and voltages on the grid are monitored and used to generate waveform data enabling dynamic control of switching circuitry used in controlling one or more phase offsets between the currents and voltages.

Abstract translation: 用于控制通过三相交流电网输送的三相交流电源的功率因数校正（PFC）的系统和方法。 电网上的电流和电压被监测并用于产生波形数据，使得能够动态控制用于控制电流和电压之间的一个或多个相位偏移的开关电路。

公开(公告)号：EP3109988A1

公开(公告)日：2016-12-28

申请号：EP15193792.7

申请日：2015-11-10

Applicant: STMicroelectronics (Tours) SAS

Inventor： GONTHIER, Laurent

IPC: H02M1/36 ,  H02M7/12 ,  H02M1/32

CPC classification number: H02M7/06 ,  H02M1/32 ,  H02M1/36 ,  H02M1/4208 ,  H02M7/125 ,  H02M7/217 ,  Y02P80/112

Abstract: L'invention concerne un convertisseur alternatif-continu comportant : une première borne (12) et une deuxième borne (14), destinées à recevoir une tension alternative (Vac) ; une troisième borne (16) et une quatrième borne (18), destinées à fournir une tension continue (Vdc) ; deux commutateurs (T1, T2) en série entre les troisième et quatrième bornes, dont le point milieu (32) est connecté à la première borne (12) ; et deux éléments de redressements (Th1, Th2) commandables en série entre les troisième et quatrième bornes, dont le point milieu (34) est connecté à la première borne ou à la deuxième borne (14).

Abstract translation: AC / DC转换器包括用于接收AC电压的第一端子和第二端子，以及用于传送DC电压的第三端子和第四端子。 两个晶体管开关串联在第三和第四端子之间，其连接点连接到第一端子。 两个可控整流元件串联在第三和第四端子之间，它们的连接点连接到第一端子或第二端子。 两个可控整流元件是相位角控制的。

公开(公告)号：EP2755309B1

公开(公告)日：2016-09-14

申请号：EP13807881.1

申请日：2013-04-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： CHENG, Yang ,  WANG, Weifeng ,  YAO, Xiaofeng

IPC: H02M3/158 ,  H02M7/17 ,  H02M1/42 ,  H02M5/45 ,  H02J9/04 ,  H02M7/15 ,  H02J9/06

CPC classification number: H02M1/4216 ,  H02M1/4233 ,  H02M7/153 ,  H02M7/17 ,  H02M2003/1586 ,  Y02B70/126 ,  Y02P80/112

公开(公告)号：EP3057222A1

公开(公告)日：2016-08-17

申请号：EP14877798.0

申请日：2014-12-24

Applicant: Mitsubishi Heavy Industries, Ltd.

Inventor： KAWASHIMA, Kazumasa ,  HAYASHI, Shigeki

IPC: H02M7/12 ,  H02M7/06

CPC classification number: H02M1/4225 ,  H02M1/32 ,  H02M1/36 ,  Y02B70/126 ,  Y02P80/112

Abstract: Abstract: In the present invention, a rectifying device includes a power factor oorrecting circuit. The power factor correcting circuit includes, for example, an inductor and a switching element disposed in correspondence with the inductor. A control device (15) of the rectifying device includes a power factor correcting control unit (21) that controls the power factor correcting circuit, and an input power supply monitoring unit (22) that monitors whether an input power supply is unstable. The input power supply monitoring unit (22) comprises: a detection unit (31) that detects a period in which the input power supply voltage is at least a prescribed threshold; a determination unit (32) that determines whether the detected time detected by the detection unit (31) is within a normal range set beforehand; and a stopping unit (33) that stops the operation of the power factor correcting circuit if the detected time is outside of the normal range. Due to this configuration, an unstable input power supply voltage can be quickly detected and the generation of unwanted noise and the like can be prevented.

Abstract translation: 摘要：在本发明中，整流装置包括功率因数校正电路。 功率因数校正电路例如包括与电感器对应设置的电感器和开关元件。 整流装置的控制装置（15）包括控制功率因数校正电路的功率因数校正控制单元（21）和监控输入电源是否不稳定的输入电源监视单元（22）。 输入电源监视单元（22）包括：检测单元（31），其检测输入电源电压至少为规定阈值的周期; 确定单元（32），其确定由所述检测单元（31）检测到的检测时间是否在预先设置的正常范围内; 以及停止单元（33），如果检测到的时间超出正常范围，则停止功率因数校正电路的动作。 由于这种配置，可以快速地检测不稳定的输入电源电压，并且可以防止产生不想要的噪声等。