Browse > Article

Design of a Voltage Protection Circuit for DC-DC Converter of the Potable Device Application  

Park, Ho-Jong (Dept. of Nano Eng., Inje Univ.)
Heo, Yun-Seok (Dept. of Nano System Eng., Inje Univ.)
Park, Yong-Su (Dept. of Electronics, Chung Cheong Univ.)
Kim, Nam-Tae (Dept. of Electronic Eng., Inje Univ.)
Song, Han-Jung (Dept. of Nano Eng., Inje Univ.)
Publication Information
전자공학회논문지 IE / v.49, no.1, 2012 , pp. 18-23 More about this Journal
Abstract
In this paper, a potable device application for DC-DC converter was designed for voltage protection circuit. Voltage protection circuit to offer the under voltage lock out and over voltage protection consists of a comparator and bais circuits were implemented using. XFAB 1um CMOS process, SPICE simulations was confirmed through the characteristics. Simulation results, under voltage lock out input voltage is 4.8 V higher when the turn-on and, 4.2 V less when turn-off. When the input voltage is low voltage is applied can be used to prevent malfunction of the circuit. Over voltage protection is 3.8 V reference voltage when the output voltage caused by blocking circuit prevents device destruction can be used to improve the stability and reliability. The virtual control circuits of the DC-DC converter connected. According to the results of the abnormal voltage, voltage protection circuit behavior was confirmed. The proposed voltage protection circuit of the DC-DC converter cell is useful are considered.
Keywords
Protection circuit; DC-DC converter;
Citations & Related Records
연도 인용수 순위
  • Reference
1 J.N. Ross, "The Essence of Power Electronics, 1st ed." London, UK.:Prentice Hall, 1997.
2 P.Gray, P.J. Hurst, S.H. Lewis, and R.G. Meyer,"Analysis and Design of Analog Integrated Circuits," 4th ed. New York, Wiley, 2001.
3 R. Mammano, "Switching power supply topology: Voltage mode vs. current mode," Texas Instruments Inc., Dallas, TX, Unitrode Design Note DN-62, 1994.
4 한수빈, 박석인, 송유진 등, "최근의 LED 구동 IC의 종류 및 특성", 조명전기설비학회 추계학술대회 논문집. pp. 105-107, 2008.
5 "Power management." Texas Instruments Incorporated, Dallas, TX, http://www.ti.com
6 "Power supplies, power management, and battery management," Maxim Integrated Products, Sunnyvale, CA, http://www.maxim-ic.com