公开(公告)号：EP1835604A1

公开(公告)日：2007-09-19

申请号：EP06425172.1

申请日：2006-03-16

Applicant: STMicroelectronics S.r.l.

Inventor： Vai, Raimondo ,  Gavattari, Giuseppe ,  Gritti, Giovanni

IPC: H02M3/158 ,  H01F1/00 ,  H01F1/08

CPC classification number: H02M3/1584 ,  H01F3/14 ,  H01F27/24 ,  H01F30/12

Abstract: A three phase coupled filter inductor core of a low reluctance material consists of two matching parts joined to create closed magnetic flux paths, at least one part having a planar base portion and four parallel pillars extending from a surface of the planar base, three of the pillars are spaced by a same radial distance, from the axis of a fourth pillar, centered on the planar base.
A coupled three phase filter inductor for a synchronous interleaved multiphase DC-DC buck converter, includes at least three phase coils wound on the three spaced pillars of the coupled inductor core and oriented in a way to establish an inverse magnetic coupling of any one of the three phase coils with the other two coils.

Abstract translation: 低磁阻材料的三相耦合滤波电感器芯由两个匹配的部件组成，以形成闭合的磁通路径，至少一个部分具有平面基部和从平面基底的表面延伸的四个平行柱， 柱与第四柱的轴线间隔相同的径向距离，以平面底座为中心。 一种用于同步交错多相DC-DC降压转换器的耦合三相滤波电感器，包括缠绕在耦合电感器芯的三个间隔柱上的至少三相线圈，并以一种方式建立一个反向磁耦合 三相线圈与其他两个线圈。

公开(公告)号：EP1424766A1

公开(公告)日：2004-06-02

申请号：EP02425737.0

申请日：2002-11-29

Applicant: STMicroelectronics S.r.l.

Inventor： Gattavari, Giuseppe ,  Vai, Raimondo

IPC: H02M3/156 ,  H02M3/158

CPC classification number: H02M3/156 ,  H02M2001/0009 ,  H02M2001/0025

Abstract: A switching voltage regulator adapted for providing a regulated voltage (Vout) at an output terminal (OUT) is described which comprises at least one MOS transistor (M2, 102) having a non-drivable terminal coupled with said output terminal (OUT) and a control circuit (1-3, 103) receiving a signal (Ifb, Iout1) that is representative of the current signal flowing in said MOS transistor (M2, 102). The control circuit (1-3, 103) comprises a compensation device (9) adapted for cancelling the thermal variation of said signal (Ifb, Iout1) that is representative of the current signal flowing in said MOS transistor (M2, 102).

Abstract translation: 描述了适于在输出端（OUT）处提供调节电压（Vout）的开关电压调节器，其包括具有与所述输出端子（OUT）耦合的不可驱动端子的至少一个MOS晶体管（M2,102）和 接收代表在所述MOS晶体管（M2,102）中流动的电流信号的信号（Ifb，Iout1）的控制电路（1-3,103）。 控制电路（1-3,103）包括适于消除表示在所述MOS晶体管（M2,102）中流动的电流信号的所述信号（Ifb，Iout1）的热变化的补偿装置（9）。