ÇѱÛÁ¦¸ñ(Korean Title) |
Áøµ¿¿¡³ÊÁö ¼öÈ®À» À§ÇÑ CMOS ÀÎÅÍÆäÀ̽º ȸ·Î |
¿µ¹®Á¦¸ñ(English Title) |
A CMOS Interface Circuit for Vibrational Energy Harvesting |
ÀúÀÚ(Author) |
¾ç¹ÎÀç
À±ÀºÁ¤
À¯Á¾±Ù
Min-jae Yang
Eun-jung Yoon
Chong-gun Yu
|
¿ø¹®¼ö·Ïó(Citation) |
VOL 18 NO. 02 PP. 0267 ~ 0270 (2014. 10) |
Çѱ۳»¿ë (Korean Abstract) |
º» ³í¹®¿¡¼´Â Áøµ¿¿¡³ÊÁö ¼öÈ®À» À§ÇÑ CMOS ÀÎÅÍÆäÀ̽º ȸ·Î¸¦ ¼³°èÇÏ¿´´Ù. Á¦¾ÈµÈ ȸ·Î´Â AC-DC º¯È¯±â¿Í DC-DC ºÎ½ºÆ® º¯È¯±â·Î ±¸¼ºµÈ´Ù. AC-DC º¯È¯±â´Â Áøµ¿¼ÒÀÚ(PZT)¿¡¼ Ãâ·ÂµÇ´Â AC ½ÅÈ£¸¦ DC ½ÅÈ£·Î º¯È¯ÇØÁÖ´Â ¿ªÇÒÀ» Çϸç, DC-DC ºÎ½ºÆ® º¯È¯±â´Â AC-DC º¯È¯±â¿¡¼ Ãâ·ÂµÈ ½ÅÈ£¸¦ ¿øÇÏ´Â °ªÀ¸·Î ½Â¾Ð ¹× ¾ÈÁ¤È ½ÃÅ°´Â ¿ªÇÒÀ» ÇÑ´Ù. AC-DC º¯È¯±â´Â È¿À² Ư¼ºÀÌ ÁÁÀº ´Éµ¿ ´ÙÀÌ¿Àµå¸¦ ÀÌ¿ëÇÑ ÀüÆÄÁ¤·ù±â¸¦ »ç¿ëÇÏ¿´À¸¸ç, DC-DC ºÎ½ºÆ® º¯È¯±â´Â Á¦¾î ȸ·Î°¡ °£´ÜÇÑ ¼îƮŰ ´ÙÀÌ¿Àµå¸¦ »ç¿ëÇÑ ±¸Á¶¸¦ ÀÌ¿ëÇÏ¿´´Ù. ¶ÇÇÑ Áøµ¿¼ÒÀڷκÎÅÍ ÃÖ´ëÀü·ÂÀ» ¼öÈ®Çϱâ À§ÇÑ MPPT(Maximum Power Point Tracking) ±â´ÉÀ» Àû¿ëÇÏ¿´´Ù. Á¦¾ÈµÈ ȸ·Î´Â 0.35um CMOS °øÁ¤À¸·Î ¼³°èµÇ¾úÀ¸¸ç, ¼³°èµÈ ĨÀÇ ¸éÀûÀº 530um˟325umÀÌ´Ù. ¼³°èµÈ ȸ·ÎÀÇ ¼º´ÉÀ» °ËÁõÇÑ °á°ú AC-DC º¯È¯±â¿Í DC-DC ºÎ½ºÆ® º¯È¯±âÀÇ ÃÖ´ë È¿À²Àº °¢°¢ 97.7%¿Í 89.2%À̸ç, Àüüȸ·ÎÀÇ ÃÖ´ë È¿À²Àº 87.2%ÀÌ´Ù. |
¿µ¹®³»¿ë (English Abstract) |
This paper presents a CMOS interface circuit for vibration energy harvesting. The proposed circuit consists of an AC-DC converter and a DC-DC boost converter. The AC-DC converter rectifies the AC signals from vibration devices(PZT), and the DC-DC boost converter generates a boosted and regulated output at a predefined level. A full-wave rectifier using active diodes is used as the AC-DC converter for high efficiency, and a schottky diode type DC-DC boost converter is used for a simple control circuitry. A MPPT(Maximum Power Point Tracking) control is also employed to harvest the maximum power from the PZT. The proposed circuit has been designed in a 0.35um CMOS process. The chip area is 530um˟325um. Simulation results shows that the maximum efficiencies of the AC-DC converter and DC-DC boost converter are 97.7% and 89.2%, respectively. The maximum efficiency of the entire system is 87.2%. |
Å°¿öµå(Keyword) |
Input-powered
Energy Harvesting
DC-DC Converter
Vibrational
AC-DC Converter
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ÆÄÀÏ÷ºÎ |
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