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Ȩ Ȩ > ¿¬±¸¹®Çå > Çмú´ëȸ ÇÁ·Î½Ãµù > Çѱ¹Á¤º¸Åë½ÅÇÐȸ Çмú´ëȸ > 2014³â Ãß°èÇмú´ëȸ

2014³â Ãß°èÇмú´ëȸ

Current Result Document : 31 / 42 ÀÌÀü°Ç ÀÌÀü°Ç   ´ÙÀ½°Ç ´ÙÀ½°Ç

ÇѱÛÁ¦¸ñ(Korean Title) ¿¡³ÊÁö ºÐ¹è ±â´ÉÀ» ÀÌ¿ëÇÑ ¸¶ÀÌÅ©·Î ºû¿¡³ÊÁö ÇϺ£½ºÆà ȸ·Î
¿µ¹®Á¦¸ñ(English Title) A Micro-Scale Photovoltaic Energy Harvesting Circuit Using Energy Distribution Technique
ÀúÀÚ(Author) À̽ſõ   ÀÌö¿ì   ¾ç¹ÎÀç   À±ÀºÁ¤   À¯Á¾±Ù   Shin-woong Lee   Chul-woo Lee   Min-Jae Yang   Eun-jung Yoon   Chong-gun Yu  
¿ø¹®¼ö·Ïó(Citation) VOL 18 NO. 02 PP. 0581 ~ 0584 (2014. 10)
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(Korean Abstract)
º» ³í¹®¿¡¼­´Â ¿¡³ÊÁö ºÐ¹è ±â´ÉÀ» ÀÌ¿ëÇÏ¿© MPPT(Maximum Power Point Tracking) Á¦¾î ±â´ÉÀ» ±¸ÇöÇÑ ¸¶ÀÌÅ©·Î ºû¿¡³ÊÁö ÇϺ£½ºÆà ½Ã½ºÅÛÀ» Á¦¾ÈÇÑ´Ù. ¼ÒÇü PV(Photovoltaic) ¼¿¿¡¼­ Ãâ·ÂµÇ´Â ¿¡³ÊÁö¿Í Àü¾Ð ·¹º§Àº À۱⠶§¹®¿¡ Á÷Á¢ MPPT Á¦¾îȸ·Î¸¦ ±¸µ¿Çϱ⠾î·Æ´Ù. µû¶ó¼­ Á¦¾ÈµÈ ȸ·Î¿¡¼­´Â ½Ãµ¿È¸·Î¸¦ »ç¿ëÇÏ¿© Vcp¸¦ MPPT Á¦¾îȸ·Î¸¦ ±¸µ¿Çϱâ À§ÇØ ÇÊ¿äÇÑ Àü¾Ð±îÁö ½Â¾Ð½ÃŲ´Ù. Vcp°¡ ¿øÇÏ´Â Àü¾Ð °ª¿¡ µµ´ÞÇϸé Àü¾Ð°¨Áö±â°¡ À̸¦ °¨ÁöÇÏ¿© PV ¼¿·ÎºÎÅÍ ½Ãµ¿È¸·Î¿¡ °ø±ÞµÇ´Â ¿¡³ÊÁö´Â Â÷´ÜÇÏ°í, Àü·Âº¯È¯±â¿¡ ¿¡³ÊÁö¸¦ °ø±ÞÇÑ´Ù. Vcp°¡ °¨¼ÒÇÏ¿© MPPT Á¦¾îȸ·Î°¡ µ¿ÀÛÇϱ⠾î·Æ°Ô µÇ¸é Àü·Âº¯È¯±â·ÎÀÇ ¿¡³ÊÁö Àü´ÞÀ» Â÷´ÜÇÏ°í ½Ãµ¿È¸·Î¸¦ ´Ù½Ã ±¸µ¿ÇÑ´Ù. ÀÌ·¸°Ô ¿¡³ÊÁö ºÐ¹è ±â´ÉÀ» ÀÌ¿ëÇÏ¿© ½Ãµ¿È¸·Î¿Í Àü·Âº¯È¯±â¸¦ ¹ø°¥¾Æ µ¿ÀÛ½ÃÅ°¸é¼­ ¿¡³ÊÁö¸¦ ¼öÈ®ÇÏ¿© PMU(Power Management Unit)¸¦ ÅëÇØ ºÎÇÏ¿¡ Àü´ÞÇÑ´Ù. Á¦¾ÈµÈ ȸ·Î´Â 0.35um CMOS °øÁ¤À¸·Î ¼³°è µÇ¾úÀ¸¸ç ¸ðÀǽÇÇèÀ» ÅëÇØ µ¿ÀÛÀ» °ËÁõÇÏ¿´´Ù. ¼³°èµÈ ȸ·ÎÀÇ Ä¨ ¸éÀûÀº Æе带 Æ÷ÇÔÇÏ¿© 1430um¡¿1110umÀÌ´Ù.
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(English Abstract)
In this paper, a micro-scale photovoltaic(PV) energy harvesting system is proposed where an MPPT(Maximum Power Point Tracking) control is implemented using an energy distribution technique. Miniature PV cells output very low energy and low voltages, and thus, they cannot be used to directly power the MPPT controller. In the proposed system, a start-up circuit boosts an internal Vcp, and the boosted Vcp is used to operate the internal MPPT control block. When the Vcp reaches a predefined value, a detector circuit makes the start-up block turn off and provide a power converter with the energy from the PV cell. When the Vcp decreases such that the MPPT controller can not be operated, the energy transferred to the power converter is blocked and the start-up circuit is reactivated. In this way, the MPPT function is achieved by alternately operating the start-up circuit and the power converter using the energy distribution technique, and the harvested energy is transferred to a load through a PMU(Power Management Unit). The proposed circuit is designed in a 0.35um CMOS process and its functionality has been verified through extensive simulations. The designed chip area including pads is 1430um¡¿1110um.
Å°¿öµå(Keyword) Energy Harvesting   Solar Cell   MPPT   Controller   Charge Pump   PMU  
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