A new control strategy for power supply on chip using parallel connected DC-DC converters
A new control strategy for power supply on chip using parallel connected DC-DC converters
复制标题
使用并联 DC-DC 转换器的片上电源新控制策略
DOI：
10.1109/peds.2013.6526998
复制
发表时间：
2013
期刊：
影响因子：
--
通讯作者：
S. Abe
中科院分区：
文献类型：
--
作者：
T. Yamamoto;J. Rikitake;S. Matsumoto;T. Ninomiya;S. Abe
片上电源（Power Supply on Chip，SoC）由于能够实现电源的最小化，近年来受到了众多研究者的关注。这实现了更高的电力密度和更低的制造成本。然而，在重负载条件下必须并联连接，因为这样可以处理每个芯片更小的功率。此外，为了减小电源的体积，需要大于10 MHz的开关频率。在这种方案中，传统的基于模拟的PWM将面临问题，需要一种新的控制策略。本文提出了一种基于数字控制的DC-DC变换器并联功率片上系统的新控制策略。我们还报告了所提出的策略的模拟和实验结果。结果表明，所提出的策略效果良好，在很大范围内提高了效率。
In recent years, a power supply on chip (SoC) has been attracted attentions of many researchers because it can realize ultimate minimization of the power supply. This realizes higher electric power density and lower manufacturing cost. However, it is necessary to connect parallel at heavy loading conditions because this can handle smaller power per chip. In addition, switching frequency of more than 10 MHz is required for reducing the volume of the power supply. In such a scheme, the traditional analog based PWM will face the problems and a new control strategy is required. This paper proposes a new control strategy of the power-SoC based on parallel connections of dc-dc converters by digital control. We also report the simulation and experimental results of the proposed strategy. The results show that the proposed strategy works well and improves the efficiency over the wide range.