ÇѱÛÁ¦¸ñ(Korean Title) |
CMOS 0.18um °øÁ¤À» ÀÌ¿ëÇÑ Dead-Time ÀûÀÀÁ¦¾î ±â´ÉÀ» °®´Â PWM DC-DC Boost º¯È¯±â ¼³°è |
¿µ¹®Á¦¸ñ(English Title) |
Design of a PWM DC-DC Boost Converter with Adaptive Dead-Time Control Using a CMOS 0.18um Process |
ÀúÀÚ(Author) |
ȲÀÎÈ£
À±ÀºÁ¤
¹ÚÁ¾ÅÂ
À¯Á¾±Ù
In-Ho Hwang
Eun-Jung Yoon
Jong-Tae Park
Chong-Gun Yu
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¿ø¹®¼ö·Ïó(Citation) |
VOL 16 NO. 02 PP. 0285 ~ 0288 (2012. 10) |
Çѱ۳»¿ë (Korean Abstract) |
±âÁ¸ÀÇ DC-DC Boost º¯È¯±â¿¡ »ç¿ëµÇ´Â ÀϹÝÀûÀÎ non-overlapping gate driver´Â dead-timeÀÌ °íÁ¤µÇ¾î Àֱ⠶§¹®¿¡ body-diode conduction loss ¶Ç´Â charge-sharing loss°¡ ¹ß»ýÇÏ´Â ¹®Á¦Á¡ÀÌ ÀÖ´Ù. µû¶ó¼ º» ³í¹®¿¡¼´Â ÀÌ·¯ÇÑ loss¿¡ ÀÇÇÑ È¿À² °¨¼Ò¸¦ ÁÙÀ̱â À§ÇØ dead-time ÀûÀÀÁ¦¾î ±â´ÉÀ» °®´Â PWM DC-DC Boost º¯È¯±â¸¦ ¼³°èÇÏ¿´´Ù. ¶ÇÇÑ, ºÎÇÏÀü·ù°¡ ÀÛÀº °æ¿ì È¿À²À» Áõ°¡½ÃÅ°±â À§ÇØpower switching ȸ·Î¸¦ »ç¿ëÇÏ¿´´Ù. ±× °á°ú ³ÐÀº ºÎÇÏ Àü·ù ¹üÀ§¿¡¼ ³ôÀº È¿À²À» ¾òÀ» ¼ö ÀÖ´Ù. Á¦¾ÈµÈ DC-DC Boost º¯È¯±â´Â CMOS 0.18um°øÁ¤À¸·Î ¼³°èÇÏ¿´´Ù. 2.5VÀÇ ÀÔ·ÂÀü¾ÐÀ» ¹Þ¾Æ¼ 3.3VÀÇ Ãâ·ÂÀü¾ÐÀ» ¾ò´Â´Ù. ½ºÀ§Äª ÁÖÆļö´Â 500kHzÀ̸ç, ÃÖ´ëÈ¿À²Àº 97.8%ÀÌ´Ù.
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¿µ¹®³»¿ë (English Abstract) |
Since the non-overlapping gate driver used in conventional DC-DC boost converters generates fixed dead-times, the converters suffer from the body-diode conduction loss or the charge-sharing loss. To reduce the efficiency degradation due to these losses, this paper presents a PWM DC-DC boost converter with adaptive dead-time control. In light loads, power switching is also employed to increase the efficiency. The designed DC-DC boost converter can thus achieve high efficiency at wide current range. The proposed DC-DC boost converter has 3.3V output from a 2.5V input with 0.18um technology. It operates at 500KHz and has a maximum power efficiency of 97.8%.
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Å°¿öµå(Keyword) |
DC-DC Converter
Boost Converter
Dead-Time
Power Switching
Efficiecny
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ÆÄÀÏ÷ºÎ |
PDF ´Ù¿î·Îµå
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