Browse > Article
http://dx.doi.org/10.5573/ieie.2016.53.1.139

A Functional Circuits Design of Variable Frequency Switching type DC-DC Converter Integrated Circuit  

Lee, Jun-sung (Department of Computer Engineering and Electronics)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.53, no.1, 2016 , pp. 139-144 More about this Journal
Abstract
This paper describes functional circuits of DC-DC converter IC incorporated with variable frequency PFM technique. In case of output voltage of DC-DC converter is reached setting value or output current is low then PFM switching frequency is slow down. In this work a PFM signal generator, a PFM Frequency Control Circuit, an output voltage detector and an over current protection circuits are designed. This device has been designed at a $0.35[{\mu}m]$, double poly, double metal 12[V] CMOS process.
Keywords
Variable PFM; DC-DC converter; Variable Frequency Oscillator;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 B. Sahu and G. A. Ricon-Mora, "An Accurate, Low-Voltage, CMOS Switching Power Supply With Adaptive On-Time Pulse-Frequency Modulation (PFM) Control," IEEE Trans. Circuit and Systems, vol. 54, no. 2, Feb. 2007.
2 ongyong Jeong, Hyunseok Nam, Jeongjin Roh. "A 94% Efficiency Current-mode DC-DC boost converter with automatic PFM/PWM conversion" Conference on The Institute of Electronics Engineers of Korea, Vol. 31, No. 1, 2008.
3 Chang-Jae Yoo, Hong-Jin Kim, Young-Jun Park, Kang-Yoon Lee "A Design of PFM/PWM Dual Mode Feedback Based LLC Resonant ConverterController IC for LED BLU" Conference on The Institute of Electronics Engineers of Korea, Vol. 37, No. 1, 2014.
4 Seunghyeong Lee, Sangwoo Han, and Jongsun Kim "High Efficiency Triple Mode Boost DC-DC Converter Using Pulse-Width Modulation" Journal of The Institute of Electronics Engineers of Korea, Vol. 52, No. 2, 2015. 2
5 Jun-sung Lee "A Design of Integrated Circuit for High Efficiency current mode boost DC-DC converter" Journal of The Institute of Electronics Engineers of Korea, Vol. 47, IE, no. 2, pp. 13-20, 2010. 6
6 Jiman Kim, Yongsu Park, and Hanjung Song "PFM-Mode Boost DC-DC Convertor for Mobile Multimedia Application" Journal of The Institute of Electronics Engineers of Korea, Vol. 47, IE, no. 3, 2010. 9
7 Phillip E. Allen, Douglas R. Holberg "CMOS Analog Circuit Design," Holt, Rinehart and Winstone, 1987.