ÇѱÛÁ¦¸ñ(Korean Title) |
ºû ¿¡³ÊÁö ÇϺ£½ºÆÃÀ» À§ÇÑ Àü·Â°ü¸®È¸·Î |
¿µ¹®Á¦¸ñ(English Title) |
A Power Management Unit for Solar Energy Harvesting |
ÀúÀÚ(Author) |
À±ÀºÁ¤
ȲÀÎÈ£
¹ÚÁ¾ÅÂ
À¯Á¾±Ù
Eun-Jung Yoon
In-Ho Hwang
Jong-Tae Park
Chong-Gun Yu
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¿ø¹®¼ö·Ïó(Citation) |
VOL 16 NO. 02 PP. 0267 ~ 0271 (2012. 10) |
Çѱ۳»¿ë (Korean Abstract) |
º» ³í¹®¿¡¼´Â ºû ¿¡³ÊÁö ÇϺ£½ºÆÃÀ» À§ÇÑ Àü·Â°ü¸®È¸·Î¸¦ Á¦¾ÈÇÑ´Ù. ¼Ö¶ó¼¿ÀÌ ¼¾¼³ëµå°¡ µ¿ÀÛÇÒ ¼ö ÀÖ´Â ÃæºÐÇÑ Àü¾ÐÀ» Ãâ·ÂÇÒ °æ¿ì´Â Power Management Unit(PMU)¸¦ ÅëÇØ Á÷Á¢ ¼Ö¶ó¼¿ÀÇ ¿¡³ÊÁö¸¦ ºÎÇÏ·Î °ø±ÞÇÏ°í, ¼Ö¶ó¼¿ÀÇ Ãâ·ÂÀü¾ÐÀÌ ¼¾¼³ëµå°¡ µ¿ÀÛÇϱ⿡ ÃæºÐÄ¡ ¾Ê´Ù¸é voltage booster(VB)¸¦ ÅëÇØ ÃæºÐÇÑ Àü¾Ð±îÁö ½Â¾ÐÇÏ¿© À̸¦ PMU¸¦ ÅëÇØ ºÎÇÏ·Î °ø±ÞÇϵµ·Ï ¼³°èÇÏ¿´´Ù. ¼³°èµÈ ȸ·Î¸¦ 0.18um CMOS °øÁ¤À¸·Î Á¦ÀÛÇÏ¿© ÃøÁ¤ÇÑ °á°ú, ¼Ö¶ó¼¿ÀÇ ¿¡³ÊÁö¸¦ PMU¸¦ ÅëÇØ Á÷Á¢ ºÎÇÏ·Î °ø±ÞÇÏ´Â °æ¿ì´Â º¸´Ù ¸¹Àº ¿¡³ÊÁö°¡ ºÎÇÏ·Î °ø±ÞµÇ¾ú°í, VB¸¦ ÀÌ¿ëÇÏ¿© PMU¸¦ ÅëÇØ ºÎÇÏ·Î ¿¡³ÊÁö¸¦ °ø±ÞÇÏ´Â °æ¿ì´Â ³·Àº Àü¾ÐÀ» Ãâ·ÂÇÏ´Â ÃʼÒÇü ¼Ö¶ó¼¿¿¡µµ Àû¿ëÀÌ °¡´ÉÇÏ¿´°í ³·Àº Á¶µµ¿¡¼µµ ¿¡³ÊÁö °ø±ÞÀÌ °¡´ÉÇÏ¿´´Ù.
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¿µ¹®³»¿ë (English Abstract) |
In this paper a power management unit for solar energy harvesting is proposed. If solar energy is sufficient, Power Management Unit(PMU) directly supplies load with solar energy. By contrast, if solar energy is insufficient to operate sensor nodes, voltage booster(VB) boosts the solar cell¡¯s output voltage, and then PMU supplies load with the harvested energy. The designed circuit had been fabricated using a 018um CMOS process. In the first case, the PMU supplies load with more energy than in the second case. In the second case where a VB is used, the PMU operates to supply load with solar energy even when illumination is low and minimum solar cells with very low output voltage are used.
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Å°¿öµå(Keyword) |
Power Management Unit
Energy harvesting
Solar cell
Charge pump
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ÆÄÀÏ÷ºÎ |
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