ÇѱÛÁ¦¸ñ(Korean Title) |
¿Àü ¿¡³ÊÁö ÇϺ£½ºÆÃÀ» À§ÇÑ ¾ÈÁ¤ÈµÈ Ãâ·ÂÀ» °®´Â 0.2V DC/DC ºÎ½ºÆ® º¯È¯±â |
¿µ¹®Á¦¸ñ(English Title) |
A 0.2V DC/DC Boost Converter with Regulated Output for Thermoelectric Energy Harvesting |
ÀúÀÚ(Author) |
Á¶¿ëȯ
°º¸°æ
±è¼±Èñ
¾ç¹ÎÀç
À±ÀºÁ¤
À¯Á¾±Ù
Yong-hwan Cho
Bo-kyung Kang
Sun-hui Kim
Min-Jae Yang
Eun-jung Yoon
Chong-gun Yu
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¿ø¹®¼ö·Ïó(Citation) |
VOL 18 NO. 02 PP. 0565 ~ 0568 (2014. 10) |
Çѱ۳»¿ë (Korean Abstract) |
º» ³í¹®¿¡¼´Â ¿Àü¿¡³ÊÁö ÇϺ£½ºÆÃÀ» À§ÇÑ ¾ÈÁ¤ÈµÈ Ãâ·ÂÀ» °®´Â 0.2V DC/DC º¯È¯±â¸¦ ¼³°èÇÏ¿´´Ù. ¿Àü¼ÒÀÚÀÇ ÀúÀü¾ÐÀ» ÀÌ¿ëÇϱâ À§ÇØ native NMOS Æ®·£Áö½ºÅÍ¿Í ÀúÇ×À¸·Î ÀÌ·ç¾îÁø ½Ãµ¿È¸·Î°¡ 0.2V ÀÇ ÀÔ·ÂÀü¾ÐÀ» ³»ºÎ ÄÁÆ®·Ñ ºí·Ï ȸ·Î°¡ µ¿ÀÛÇÒ ¼ö ÀÖ´Â VDD±îÁö ½Â¾ÐÇÑ´Ù. VDD°¡ ¿øÇÏ´Â Àü¾Ð °ª¿¡ µµ´ÞÇϸé Àü¾Ð°¨Áö±â°¡ À̸¦ °¨ÁöÇÏ°í ½Ãµ¿È¸·Î¿¡ °ø±ÞµÇ´Â Àü·ù¸¦ Â÷´ÜÇÏ¿© Àü·ù¼Ò¸ð¸¦ ÃÖ¼ÒÈÇÑ´Ù. ÀÌÈÄ ºñ±³±âÀÇ Ãâ·Â¿¡ µû¶ó VDD¸¦ ÀÏÁ¤Àü¾Ð ÀÌ»óÀ¸·Î À¯ÁöÇϱâ À§ÇÑ ºÎ½ºÆ® º¯È¯±â¿Í VSTO¸¦ ½Â¾ÐÇϱâ À§ÇÑ ºÎ½ºÆ® º¯È¯±â¸¦ ¹ø°¥¾Æ°¡¸ç µ¿ÀÛ½ÃÄѼ VSTO¸¦ ¹÷ º¯È¯±â°¡ µ¿ÀÛÇÏ´Â Àü¾Ð±îÁö ½Â¾ÐÇØÁØ´Ù. VSTO°¡ 2.4V ÀÌ»óÀÌ µÇ¸é ¹÷ º¯È¯±â°¡ µ¿ÀÛÇÏ¿© ¾ÈÁ¤ÈµÈ ÃÖÁ¾ Ãâ·Â VOUTÀ» ¾ò´Â´Ù. ¸ðÀǽÇÇè °á°ú ¼³°èÇÑ º¯È¯±â´Â 0.2VÀÇ ÀÔ·ÂÀ¸·ÎºÎÅÍ 1.8VÀÇ ¾ÈÁ¤ÈµÈ Àü¾ÐÀ» Ãâ·ÂÇϸç, ÃÖ´ë Àü·ÂÈ¿À²Àº 60%ÀÌ´Ù. 0.35§ CMOS °øÁ¤À» »ç¿ëÇÏ¿© ¼³°èÇÑ Ä¨ÀÇ Å©±â´Â PAD¸¦ Æ÷ÇÔÇÏ¿© 1.1mm¡¿1.0mmÀÌ´Ù.
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¿µ¹®³»¿ë (English Abstract) |
This paper presents a 0.2V DC/DC boost converter with regulated output for thermoelectric energy harvesting. To use low voltages from a thermoelectric device, a start-up circuit consisting of native NMOS transistors and resistors boosts an internal VDD, and the boosted VDD is used to operate the internal control block. When the VDD reaches a predefined value, a detector circuit makes the start-up block turn off to minimize current consumption. The final boosted VSTO is achieved by alternately operating the sub-boost converter for VDD and the main boost converter for VSTO according to the comparator outputs. When the VSTO reaches 2.4V, a buck converter starts to operate to generate a stabilized output VOUT. Simulation results shows that the designed converter generates a regulated 1.8V output from an input voltage of 0.2V, and its maximum power efficiency is 60%. The chip designed using a 0.35um CMOS process occupies 1.1mm¡¿1.0mm including pads. |
Å°¿öµå(Keyword) |
Thermoelectric Energy Harvesting
Start-up Circuit
DC/DC Boost Converter
Buck Converter
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ÆÄÀÏ÷ºÎ |
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