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| Adaptive Voltage Scaling Technique for DC-DC Converter Based on Pulse Skip Modulation |
| WANG Dongjun LUO Ping PENG Xuanlin ZHEN Shaowei HE Yajuan |
| (State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China) |
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Abstract In order to decrease energy consumption of digital circuits by reducing the supply voltage, an Adaptive Voltage Scaling (AVS) for DC-DC converter based on Pulse Skip Modulation (PSM) is proposed. The AVS technique can scale supply voltage adaptively by probing and tracking the Critical Path Replica (CPR) delay time. To improve the output voltage ripple and efficiency of converter especially in light load, the PSM with Adaptive ratio duty (APSM) also is used. The experimental results show that the output voltage is well regulated from 0.6~ 1.5 V when the operation frequency of load varies within the range of 30~150 MHz. The maximum energy saving of 83% is obtained with the proposed converter compared to the traditional fixed voltage.
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Received: 28 March 2016
Published: 17 October 2016
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| Fund: The National Natural Science Foundation of China (61274027), The National Natural Science Youth Foundation of China (61404025) |
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Corresponding Authors:
LUO Ping
E-mail: pingl@uestc.edu.cn
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