JSTS:Journal of Semiconductor Technology and Science

  • 제14권5호
  • /
  • Pages.625-631
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  • 2014
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  • 1598-1657(pISSN)
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  • 2233-4866(eISSN)
대한전자공학회 (The Institute of Electronics and Information Engineers)
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Compact Power-on Reset Circuit Using a Switched Capacitor

  • Seong, Kwang-Su (Department of Electronic Engineering, Yeungnam University)
  • 투고 : 2013.12.03
  • 심사 : 2014.08.03
  • 발행 : 2014.10.30
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초록

We propose a compact power-on reset circuit consisting of a switched capacitor, a capacitor, and a Schmitt trigger inverter. A switched capacitor working with a clock signal charges the capacitor. Thus, the voltage across the capacitor is increased toward the supply voltage. The circuit provides a reset pulse until the voltage across the capacitor reaches the high threshold voltage of the Schmitt trigger inverter. The proposed circuit is simple, compact, has no static power consumption, and works for a wide range of power-on rising times. Furthermore, the clock signal is available while the reset pulse is activated. The proposed circuit works for up to 6 s of power-on rising time, and occupies a $60{\times}30{\mu}m^2$ active area.

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참고문헌

  1. Huy-Binh Le, Xuan-Dien Do, Sang-Gug Lee, and Seung-Tak Ryu, "A long reset-time power-on reset circuit with brown-out detection capability," IEEE Trans. on Circuits and Systems-II: Express Briefs, vol. 58, no. 11, Nov. 2011. pp. 778-782. https://doi.org/10.1109/TCSII.2011.2168017
  2. Takeo Yasuda, Masaaki Yamamoto, and Takafumi Nishi, "A power-on reset pulse generator for low voltage applications," in Proc. IEEE Int. Symp. Circuits Syst., May 2001, vol. 4, pp. 598-601.
  3. Suat U. Ay, "A nanowatt cascadable delay element for compact power-on reset (POR) circuits," in Proc. 52nd IEEE Int. Midwest Symp. Circuits Syst., 2009, pp. 62-65.
  4. Toru Tanzawa, "A process and temperature tolerant power-on reset circuit with a flexible detection level higher than the bandgap voltage," in Proc. IEEE Int. Symp. Circuits and Syst., 2008, pp. 2302-2305.
  5. W.C. Yen and H.W. Chen, "Low power and fast system wakeup circuit," IEE Proc.-Circuits Devices Syst., vol. 152, no. 3, Jun. 2005. pp. 223-228. https://doi.org/10.1049/ip-cds:20041176
  6. Alexandru Lazar, Mihail Florea, Danut Burdia, Luminita-Camelia Lazar, Georgian-Alexandru Lazar, Dan Butnicu, "A bandgap reference circuit design for power-on reset related circuits," in Proc. Int. Symp. Signals, Circuits and Systems, 2009, pp. 1-4.
  7. A. K. M. Kamruzzaman Mollah, Roberto Rosales, Sassan Tabatabaei, James Cicalo, and Andre Ivanov, "Design of a tunable differential ring oscillator with short start-up and switching transients," IEEE Trans. on Circuits and Systems-I: Regular Paper, vol. 54, no. 12, Dec. 2007, pp. 2669-2682. https://doi.org/10.1109/TCSI.2007.906064
  8. Shane A. Blanchard, "Quick start crystal oscillator circuit," in Proc. University/Government/Industry Microelectronics Symposium, 2003, pp. 78-81.
  9. Zeng Zianwen, Wang Zhigong, Xu Jian, and Tang Lu, "A fast start-up, low-power differential crystal oscillator for DRM/DAB receiver," in Proc. IEEE Int. Conf. Communication Technology, 2010, pp. 1027-1030.