Abstract
Low DropOut Converter (LDO) is commonly employed as voltage down converter (VDC) because of its high compatibility with System on Chips (SoCs), but in general, LDO is not so high power efficient. This paper presents an Autonomous Controlled Cascaded LDOs power system which achieves about doubled power efficiency of the conventional LDO systems. In proposed architecture, existing logic circuitries are divided into two load group, and electrical charges are shared among the blocks and a tank circuit. We confirmed that our architecture makes effective use of 88.9% of the battery energy by simulation which is comparable to that of switching regulators whereas ours is easier to implement in SoCs.
| Original language | English |
|---|---|
| Title of host publication | ASICON 2009 - Proceedings 2009 8th IEEE International Conference on ASIC |
| Pages | 336-339 |
| Number of pages | 4 |
| DOIs | |
| Publication status | Published - 2009 |
| Event | 2009 8th IEEE International Conference on ASIC, ASICON 2009 - Changsha Duration: 2009 Oct 20 → 2009 Oct 23 |
Other
| Other | 2009 8th IEEE International Conference on ASIC, ASICON 2009 |
|---|---|
| City | Changsha |
| Period | 09/10/20 → 09/10/23 |
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Keywords
- Charge recycle
- Energy saving
- Green battery
- LDO
ASJC Scopus subject areas
- Hardware and Architecture
- Electrical and Electronic Engineering
Cite this
High efficiency autonomous controlled cascaded LDOs for green battery system. / Okamura, Leona; Morishita, Fukashi; Arimoto, Kazutami; Yoshihara, Tsutomu.
ASICON 2009 - Proceedings 2009 8th IEEE International Conference on ASIC. 2009. p. 336-339 5351434.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - High efficiency autonomous controlled cascaded LDOs for green battery system
AU - Okamura, Leona
AU - Morishita, Fukashi
AU - Arimoto, Kazutami
AU - Yoshihara, Tsutomu
PY - 2009
Y1 - 2009
N2 - Low DropOut Converter (LDO) is commonly employed as voltage down converter (VDC) because of its high compatibility with System on Chips (SoCs), but in general, LDO is not so high power efficient. This paper presents an Autonomous Controlled Cascaded LDOs power system which achieves about doubled power efficiency of the conventional LDO systems. In proposed architecture, existing logic circuitries are divided into two load group, and electrical charges are shared among the blocks and a tank circuit. We confirmed that our architecture makes effective use of 88.9% of the battery energy by simulation which is comparable to that of switching regulators whereas ours is easier to implement in SoCs.
AB - Low DropOut Converter (LDO) is commonly employed as voltage down converter (VDC) because of its high compatibility with System on Chips (SoCs), but in general, LDO is not so high power efficient. This paper presents an Autonomous Controlled Cascaded LDOs power system which achieves about doubled power efficiency of the conventional LDO systems. In proposed architecture, existing logic circuitries are divided into two load group, and electrical charges are shared among the blocks and a tank circuit. We confirmed that our architecture makes effective use of 88.9% of the battery energy by simulation which is comparable to that of switching regulators whereas ours is easier to implement in SoCs.
KW - Charge recycle
KW - Energy saving
KW - Green battery
KW - LDO
UR - http://www.scopus.com/inward/record.url?scp=77949342093&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77949342093&partnerID=8YFLogxK
U2 - 10.1109/ASICON.2009.5351434
DO - 10.1109/ASICON.2009.5351434
M3 - Conference contribution
AN - SCOPUS:77949342093
SN - 9781424438686
SP - 336
EP - 339
BT - ASICON 2009 - Proceedings 2009 8th IEEE International Conference on ASIC
ER -