Abstract
In this paper, a novel Low-Voltage, High-Efficiency on-Chip Current Sensing Circuit is designed and realized for the Current Mode Control BUCK DC/DC Converter.Differ from the conventional current-sensing techniques, the proposed circuit utilize the sensing of power MOS turn-on resistance Ron technique which lower the sensing dissipation and improve the power efficiency, meanwhile, the current-sensing circuit without OP amplifier so that it can work at the 2.2V supply voltage. The Chip is simulated and fabricated based on the 0.5μm 2P3M Mixed Signal CMOS process. Test result shows, under heavy load conditions, that efficiency can reach 93%.
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References
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© 2013 Springer-Verlag Berlin Heidelberg
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HaiLong, W., ZengJian, G., Zhi, L., Xue, L. (2013). Design and Realization of a Novel Low-Voltage High-Efficiency On-Chip Current Sensing Technique. In: Du, Z. (eds) Intelligence Computation and Evolutionary Computation. Advances in Intelligent Systems and Computing, vol 180. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-31656-2_80
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DOI: https://doi.org/10.1007/978-3-642-31656-2_80
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-31655-5
Online ISBN: 978-3-642-31656-2
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