公开(公告)号：EP1683258B1

公开(公告)日：2018-10-17

申请号：EP04789571.9

申请日：2004-10-29

Applicant: Fronius International GmbH

Inventor： LUGER, Andreas ,  BITTMANN, Clemens

IPC: H02M3/337 ,  H02J7/35 ,  H02M1/00 ,  H02J3/38 ,  H02M7/48

CPC classification number: H02J7/35 ,  H02J3/38 ,  H02M3/3376 ,  H02M7/4807 ,  H02M2001/0022 ,  Y10S323/906

公开(公告)号：EP3386053A1

公开(公告)日：2018-10-10

申请号：EP18164098.8

申请日：2018-03-26

Applicant: Valeo Siemens eAutomotive France SAS

Inventor： YANG, Gang

IPC: H02H3/087 ,  H02M1/32 ,  H02M3/06 ,  H02H7/12

CPC classification number: H02H7/1213 ,  H02H3/087 ,  H02M1/32 ,  H02M3/3376 ,  H02M2001/0058 ,  Y02B70/1433 ,  Y02B70/1491

Abstract: La présente invention a pour objet un procédé de protection d'un circuit résonnant (DCDC) contre un courant de surpuissance, ledit circuit résonnant (DCDC) présentant une fréquence de commande et comprenant au moins une inductance (Lr) et deux capacités de résonnance (Cr/2), lesdites capacités de résonnance (Cr/2) présentant entre elles un point milieu, ledit procédé comprenant, pour un courant de résonnance limite (Irlim) prédéfini :
la détermination d'une tension limite (Vlim) au point milieu en fonction d'une tension d'entrée (Vin) délivrée en entrée du circuit résonnant (DCDC), de la fréquence de commande, de la valeur des capacités de résonnance (Cr/2) et du courant de résonnance limite (Irlim) prédéfini,
la détermination d'une tension (Vmp_pk) au point milieu des capacités de résonnance (CR/2),
la comparaison de la tension (Vmp_pk) au point milieu avec ladite tension limite (Vlim) déterminée,
la mise du circuit résonnant (DCDC) dans un état de défaillance en fonction de ladite comparaison de ladite tension (Vmp_pk) au point milieu avec ladite tension limite (Vlim) déterminée.

公开(公告)号：EP2837259B1

公开(公告)日：2018-10-10

申请号：EP13723654.3

申请日：2013-04-15

Applicant: Tridonic GmbH & Co. KG

Inventor： VONACH, Christoph ,  PEREIRA, Eduardo

IPC: H05B33/08 ,  H02M3/335

CPC classification number: H05B33/0815 ,  H02M3/33507 ,  H02M3/3376 ,  H02M2001/0019 ,  H02M2001/0058 ,  H05B33/0809 ,  H05B33/0842 ,  H05B33/0851 ,  H05B37/0209 ,  Y02B20/348 ,  Y02B70/1433 ,  Y02B70/1491

公开(公告)号：EP3104508B1

公开(公告)日：2018-09-26

申请号：EP14881849.5

申请日：2014-02-05

Applicant: Mitsubishi Electric Corporation

Inventor： KAWAMURA, Mao ,  MATSUDA, Yohei

IPC: H02M3/28 ,  B60L11/18 ,  H02M3/337 ,  H03K17/0814

CPC classification number: B60L11/1811 ,  B60L11/1812 ,  B60L11/1816 ,  B60L2210/10 ,  B60L2210/30 ,  B60L2240/525 ,  H02M3/3353 ,  H02M3/33546 ,  H02M3/337 ,  H02M3/3376 ,  H02M2001/0058 ,  H02M2007/53878 ,  Y02T10/7005 ,  Y02T10/7072 ,  Y02T10/7216 ,  Y02T10/92 ,  Y02T90/127 ,  Y02T90/14

Abstract: An isolated DC/DC converter (3) includes a full-bridge type switching circuit. A primary winding of a transformer (6) and a resonance reactor (5) are connected in series to each other. Another end of each of the primary winding and the resonance reactor (5) is connected to one of middle points between switching elements. First and second surge suppression diodes (D5 and D6) are provided to a node between the resonance reactor (5) and the primary winding of the transformer (6) and between a positive side and a negative side of a capacitor (4). This configuration suppresses a surge voltage applied to the transformer by releasing surge energy of the resonance reactor (5) caused by a recovery of rectifying diodes (D1 to D4) on a secondary side of the transformer (6) via the surge suppression diodes (D5 and D6).

公开(公告)号：EP3361616A1

公开(公告)日：2018-08-15

申请号：EP18156439.4

申请日：2018-02-13

Applicant: Hamilton Sundstrand Corporation

Inventor： BHAT, Ishwar ,  WAGHMARE, Piyush Nilchandra

IPC: H02M3/337 ,  H02M7/48 ,  H03J1/00 ,  H02M1/00

CPC classification number: H02M7/04 ,  B64D47/00 ,  H02M1/4241 ,  H02M3/3376 ,  H02M2001/0058 ,  H02M2007/4818 ,  H03J1/00 ,  H03J5/00 ,  Y02B70/1433 ,  Y02B70/1441 ,  Y02B70/1491

Abstract: An electronic power converter (204) is configured to receive power from a power source (202). The power operates at a switching frequency. The electronic power converter includes a resonant tank circuit (206) operatively connected to the power converter. The resonant tank circuit operates at a tank resonant frequency. The electronic power converter includes a controller (208) operatively connected to the resonant tank circuit. The electronic power converter further includes a variable inductor (300) operatively connected to the resonant tank circuit. The variable inductor is configured to modify the tank resonant frequency to match the switching frequency within a predetermined margin.

公开(公告)号：EP3163735B1

公开(公告)日：2018-06-20

申请号：EP16195808.7

申请日：2016-10-26

Applicant: TDK Corporation

Inventor： NAKAHORI, Wataru

IPC: H02M3/28 ,  H02M3/335 ,  H02M3/337 ,  H02M1/00 ,  H02M7/48

CPC classification number: H02M3/33507 ,  H02M3/3376 ,  H02M2001/0048 ,  H02M2001/0058 ,  Y02B70/1491

Abstract: A switching power supply unit (1, 1A, 1B, 1C) includes input terminals (T1, T2), output terminals (T3, T4), first to third primary windings (311, 321, 331) and first to third secondary windings (312, 322, 332), a switching circuit (2, 2A, 2B, 2C), a rectifying smoothing circuit (4, 4A, 4C, 4D, 4E), and a driver (5). In the switching circuit (2, 2A, 2B, 2C), first and second switching devices (S1, S2), third and fourth switching devices (S3, S4), and first and second capacitors (C51, C52), coupled in series to one another, are disposed in parallel between the input terminals (T1, T2). In the rectifying smoothing circuit (4, 4A, 4C, 4D, 4E), first to third arms, each having two of rectifying devices (411, 412, 421, 422, 431, 432) disposed in series, are disposed in parallel between the output terminals (T3, T4), the first secondary winding (312) is coupled between the first and the second arms to form an H-bridge coupling, the second and the third secondary windings (322, 332) are coupled between the second and the third arms to form an H-bridge coupling, and a choke coil (Lch) is disposed between the first to the third arms and an output capacitor (Cout).

公开(公告)号：EP3332468A1

公开(公告)日：2018-06-13

申请号：EP16728016

申请日：2016-06-09

Applicant: BOSCH GMBH ROBERT

Inventor： WIRNITZER BERND ,  GONDA MARTIN ,  LOHR GUENTER ,  MACK JUERGEN ,  KRUPEZEVIC DRAGAN

IPC: H02J50/12 ,  H02M3/337

CPC classification number: H02J50/12 ,  H02M3/3376 ,  H02M2001/0006 ,  H02M2001/0032 ,  H02M2001/0058 ,  H02M2001/0064 ,  Y02B70/1433 ,  Y02B70/1491 ,  Y02B70/16

Abstract: The invention relates to an induction charging device (12) and a corresponding method for inductively transmitting energy to an induction battery device (14), comprising at least one primary oscillating circuit (42) which has at least one charging coil (16) and comprising a control or regulating unit (48) for actuating the primary oscillating circuit (42) by means of an inverter circuit (32, 34). An excitation frequency (f
a ) of an inverter circuit (32, 34) output signal (54), which consist of half-waves (56a, 56b, 58a, 58b), substantially corresponds to a resonant frequency (f
R ) of the primary oscillating circuit (32, 34). The induction charging device according to the invention is characterized in that in order to reduce a charging current (I), the control or regulating unit (48) actuates the inverter circuit (32, 34) after an end-of-charge voltage (U
LT ) of the induction battery device (14) is reached such that the output signal (54) is periodically set to a high value (high) for at least one first half-wave (56a, 56b) and then immediately to a value (low) which is low compared to the high value (high) for an odd plurality of successive half-waves (58b).

公开(公告)号：EP1748539B1

公开(公告)日：2018-06-06

申请号：EP06015817.7

申请日：2006-07-28

Applicant: TDK Corporation

Inventor： Nakahori, Wataru ,  Murai, Yasuhiro

IPC: H02M3/337 ,  H02M1/34

CPC classification number: H02M3/3376 ,  H02M1/32 ,  H02M1/34 ,  H02M3/33584 ,  H02M3/3378 ,  H02M2001/0058 ,  H02M2001/342 ,  Y02B70/1491

Abstract: The present invention provides a switching power supply unit capable of suppressing a surge voltage generated in a rectifier element more effectively. A first resonance circuit is constructed by capacitors (C5,C6) in a surge voltage suppressing circuit (2) and an inductor (Lr), and resonance time of the first resonance circuit is set to be longer than recovery time of a diode in a rectifier circuit (4). According to at least one of a DC input voltage (Vin) and an output current, either a first bridge circuit (1) or a second bridge circuit (S3...6,D3...6,C3...6) is selectively allowed to perform switching operation. At the time of forward-direction operation, the first resonance circuit is formed by the capacitors (C5,C6) in the surge voltage suppressing circuit (2) and the inductor (Lr) on the high voltage side. At the time of reverse-direction operation, a second resonance circuit is formed by the capacitors (C5,C6) and an inductor (Lch) on the low voltage side.

公开(公告)号：EP2592744A4

公开(公告)日：2018-01-10

申请号：EP11824647

申请日：2011-09-09

Applicant: PANASONIC IP MAN CO LTD

Inventor： MURAYAMA KEI ,  INAKAGATA SATORU

IPC: H02M3/335 ,  H02M3/28

CPC classification number: H02M3/33569 ,  H02M3/33561 ,  H02M3/3376

Abstract: A converter circuit includes a transformer having primary windings and at least one secondary winding, a rectifier circuit connected to the secondary winding, and oscillating circuits connected to the primary windings. Each of the oscillating circuits has a switch element unit having no body diode.

公开(公告)号：EP2670039A4

公开(公告)日：2017-12-06

申请号：EP12739642

申请日：2012-01-21

Applicant: LIAN ZHENG ELECTRONIC (SHENZHEN) CO LTD

Inventor： HE ZHIFENG ,  YANG YUCHENG

IPC: H02M3/337 ,  H02M1/00 ,  H02M3/28 ,  H02M3/338

CPC classification number: H02M3/3376 ,  H02M3/3372 ,  H02M2001/0058 ,  Y02B70/1433 ,  Y02B70/1491

Abstract: The invention relates to a quasi-resonant push-pull converter and the method for controlling the same, said push-pull converter comprising: a direct current (DC) input power supply configured to supply DC input for the converter; a first power input unit and a second power input unit, connected to said DC input power supply, respectively and configured to supply input for the converter in different periods, comprising a first power switching tube and a second power switching tube, a first primary winding and a second primary winding; a power output circuit, configured to supply output of the converter, comprising secondary windings and full-bridge rectification circuits; a first output capacitor and a second output capacitor connected to said power output circuit and configured to store DC electric energy output by the power output circuit in which a resonant element is arranged to achieve a quasi-resonant switching circuit through voltage feedback; and a switching circuit being controlled through voltage feedback, whereby turns ratio of the primary windings and the secondary windings of the push-pull converter is controlled.