An Active Rectifier with Time-Domain Delay Compensation to Enhance the Power Conversion Efficiency

International Journal of Information Technology

Shao-Ku Kao

关键词: Wireless power transfer;    active diode;    delay compensation;    time to voltage converter;    PCE.;   

DOI  :  10.1999/1307-6892/10010178

学科分类：计算机应用

来源: World Academy of Science, Engineering and Technology (W A S E T)

【 摘 要 】

This paper presents an active rectifier with time-domain delay compensation to enhance the efficiency. A delay calibration circuit is designed to convert delay time to voltage and adaptive control on/off delay in variable input voltage. This circuit is designed in 0.18 mm CMOS process. The input voltage range is from 2 V to 3.6 V with the output voltage from 1.8 V to 3.4 V. The efficiency can maintain more than 85% when the load from 50 Ω ~ 1500 Ω for 3.6 V input voltage. The maximum efficiency is 92.4 % at output power to be 38.6 mW for 3.6 V input voltage.

【 授权许可】

Unknown