A new control for multi-phase buck converter with fast transient response
A new control for multi-phase buck converter with fast transient response
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DOI：
10.1109/apec.2001.911660
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发表时间：
2001-03
期刊：
影响因子：
--
通讯作者：
Wenkang Huang
中科院分区：
文献类型：
--
作者：
Wenkang Huang
新的高性能微处理器要求电源提供高电流、快速瞬态响应和严格的电压调节。交错多相同步降压转换器最近已被采用在工业中，以满足要求。为了实现多相均流，提出了一种将联合收割机电流模式控制与V/sup 2/控制相结合的控制方案。它具有暂态速度快、电流固有振荡和易于补偿等优点。本文介绍了新控制的原理和实现，并给出了瞬态响应。推导了新控制下多相变流器的小信号模型，并将其应用于变流器分析和电压环补偿。
The new high performance microprocessors require the power supply to provide high current, fast transient response, and tight voltage regulation. Interleaved multiphase synchronous buck converters have recently been adopted in the industry to meet the requirements. To achieve current sharing among the multiple phases, a new control scheme is developed to combine current mode control with V/sup 2/ control. It has the advantages of fast transient speed, inherent current shaking and easy compensation. In this paper, the principle and implementation of the new control is presented and the transient response is shown. The small signal model of multiphase converter with the new control is derived and applied in converter analysis and voltage loop compensation.