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A digital stress share method

A pressure and pressure value technology, applied in the field of power converters, which can solve problems such as system failure

Active Publication Date: 2012-11-21
ROHM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, if a host fails, the entire system fails

Method used

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  • A digital stress share method
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Embodiment Construction

[0023] In the DDS scheme presented here, a less-host quasi-democratic sharing scheme is introduced. In this scheme, arbitration is employed to ensure that only one or preferably two slaves share their information with all other slaves. The first slave to share its stress information is the slave with the highest stress. In a preferred embodiment, the slave with the least stress will also share its stress information. Knowing the maximum pressure, the slave machines can adjust their own pressure upwards towards the maximum pressure. If the lowest pressure is also available, the slaves can calculate an average pressure value (defined as the mean between the highest and lowest pressure) and adjust their pressure towards said average pressure value. It should be understood that although devices may be described as slaves in this application, there is no pre-defined master, and any slave can become a master and share its information as long as it has the highest or lowest pressur...

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Abstract

The invention discloses a PWM controller for controlling a phase in a multiphase environment. The PWM controller includes a control circuit for generating a control signal for a switch circuit to provide an output voltage, the control circuit providing the control signal so that the switch circuit runs with a voltage level, and a communication circuit configured to receive maximum and minimum voltage values, wherein the control circuit is adapted to adjust the voltage level towards an average value of the maximum and minimum voltage values.

Description

[0001] related application [0002] This application claims priority to GB0910233.6, filed June 15, 2009, and US Provisional Application No. 61 / 262,910, filed November 19, 2009. technical field [0003] The present application relates to power converters, in particular to load sharing switch mode power converters, and more particularly to methods of communication and control between such power supplies. Background technique [0004] Power converters (SMPCs) are commonly found in electrical systems. As the operating voltages of loads and logic circuits increase, it becomes increasingly difficult to deliver power to the load using a single converter. For this and other reasons including availability of power handling components, component size, reliability and transient performance, it is common practice to provide power to the circuit from multiple switch mode circuits whose outputs are connected in parallel , to provide power to the common load. Each switching circuit is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/158H02M3/157H04L12/413
Inventor 卡尔·瑞纳安东尼·凯利伊蒙·欧麦里
Owner ROHM CO LTD
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