公开(公告)号：US06189107B1

公开(公告)日：2001-02-13

申请号：US09219877

申请日：1998-12-24

申请人： Hyung-sun Kim ,  In-ho Lee ,  Ho-kyu Son ,  Myung-woo Lee ,  Jong-chel Weon ,  Seung-wha Yoo

发明人： Hyung-sun Kim ,  In-ho Lee ,  Ho-kyu Son ,  Myung-woo Lee ,  Jong-chel Weon ,  Seung-wha Yoo

IPC分类号： G06F126

CPC分类号： G06F1/28 ,  G06F1/26 ,  H02J9/061 ,  Y10T307/729

摘要： A fault tolerant voltage regulator module (VRM) circuit for a processor simultaneously supplies a core voltage to a plurality of processors, has a plurality of main VRMs (VRM) for supplying the same core voltage to the plurality of processors, a stand-by VRM for use upon a fault occurring in the plurality of main VRMs, a plurality of diodes connected in parallel between each of the main VRMs and the stand-by VRM for automatically supplying power to the stand-by VRM, a plurality of first power islands for connecting each of the plurality of main VRMs to the processor and each of output port of the plurality of diodes, a control signal set switch for setting output voltage level of the stand-by VRM and a second power island for connecting the stand-by VRM to input ports of the plurality of diodes and the control signal set switch. When a processor core voltage level and L2 cache voltage level are different, a fault tolerant VRM circuit further has a plurality of schottky diodes and a plurality of power MOSFETs for by-passing the schottky diodes so that the stand-by VRM can support two different voltage levels. The circuit improves stability of supplying board power owing to a fault tolerant VRM in processors and enables just one stand-by VRM to effect simultaneous support of a plurality of main VRMs and even different voltage level main VRMs using schottky diodes.

摘要翻译： 用于处理器的容错电压调节器模块（VRM）电路同时向多个处理器提供核心电压，具有用于向多个处理器提供相同核心电压的多个主VRM（VRM），备用VRM 用于在多个主VRM中发生故障时使用的多个二极管并联连接在每个主VRM和备用VRM之间，用于自动向备用VRM供电;多个第一电源岛，用于 将多个主VRM中的每一个连接到多个二极管的处理器和每个输出端口，用于设置待机VRM的输出电压电平的控制信号设置开关和用于连接备用VRM的第二电源岛 输入多个二极管的输入端口和控制信号组开关。 当处理器核心电压电平和L2高速缓存电压电平不同时，容错VRM电路还具有多个肖特基二极管和多个用于旁路肖特基二极管的功率MOSFET，使得备用VRM可以支持两个不同的 电压电平。 该电路通过处理器中的容错VRM提高了供电板电源的稳定性，并且只能使用一个备用VRM来同时支持多个主VRM以及使用肖特基二极管的甚至不同的电压级主VRM。