Light load efficiency improvement for laptop VRs

Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC

Volumn , Issue , 2007, Pages 120-126

  Sun, Julu ^a   Ren, Yuancheng ^a   Xu, Ming ^a   Lee, Fred C ^a  

^a VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

COMPUTERS; EIGENVALUES AND EIGENFUNCTIONS; ELECTRONIC EQUIPMENT; EXHIBITIONS; LAPTOP COMPUTERS; LOADS (FORCES);

APPLIED (CO); BATTERY LIFE; CONTROL METHODS; EXPERIMENTAL RESULTS; HIGH EFFICIENCY; LIGHT-LOAD EFFICIENCY; LOAD RANGE; NON-LINEAR; ON TIME; OUTPUT VOLTAGE RIPPLE; POWER ARCHITECTURES; TRANSIENT RESPONSES; TWO STAGES;

POWER ELECTRONICS;

EID: 46449090893     PISSN: None     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.1109/APEX.2007.357504     Document Type: Conference Paper

References (11)

1. Intel Core Duo Processor and Intel Core solo processor Datasheet, Intel document number:309221-004
2. Max 1545 datasheet, Maxim
3. Intel mobile Pentium IV processor datasheet, Intel document number: 253028-004
4. Y. Ren, et al, "Two-stage approach for 12 V VR," in IEEE Proc. APEC, 2004.
5. J. Wei, et al, "Two-Stage voltage regulator for laptop computer CPUs and the corresponding advanced control schemes to improve light-load performance", in IEEE Proc. APEC, 2004.
6. Y. Ren, et al, "Analysis of the power delivery path from the 12-V VR to the microprocessor", in IEEE Transactions on power Electronics, Nov. 2004.
7. Pit-Leong Wong.et al, "Critical Inductance in Voltage Regulator Modules", In IEEE Transactions on power Electronics, July, 2002.
8. Julu Sun, Ming Xu and Fred C. Lee, "High Power Density, High Efficiency System Two-stage Power Architecture for Laptop Computers", PESC'2006.
9. L. Spaziani, "A study of MOSFET performance in processor targeted buck and synchronou rectifier buck converters," in Proc. HFPC'96, 1996, pp. 123-137.
10. Yuancheng Ren, Ming Xu, Jinghai Zhou, and Fred C. Lee, "Analytical Loss Model of Power MOSFET", In IEEE Transactions on power Electronics, March, 2006.
11. Ming Xu, Julu Sun and Fred C. Lee, "Voltage Divider and its Application in the Two-stage Power Architecture", IEEE APEC'2006, pp499-505.