TY - GEN
T1 - A 1.2A 2MHz tri-mode buck-boost LED driver with feed-forward duty cycle correction
AU - Bang, Sarvesh
AU - Swank, Damian
AU - Rao, Arun
AU - McIntyre, William
AU - Khan, Qadeer
AU - Hanumolu, Pavan Kumar
PY - 2010
Y1 - 2010
N2 - A flash LED Buck-Boost driver employs a dual duty cycle control and feed-forward duty cycle correction to achieve high efficiency over the entire Li-On battery voltage range of 3.0 to 5.2V. Fabricated in a 0.5μm CMOS process, the converter uses an external 1μH inductor and a 10μF capacitor and operates at 2MHz switching frequency. The measured peak efficiency is 83% and 87% at 1.2A and 0.6A LED currents, respectively. This achieved efficiency represents an improvement of more than 10% over conventional approaches.
AB - A flash LED Buck-Boost driver employs a dual duty cycle control and feed-forward duty cycle correction to achieve high efficiency over the entire Li-On battery voltage range of 3.0 to 5.2V. Fabricated in a 0.5μm CMOS process, the converter uses an external 1μH inductor and a 10μF capacitor and operates at 2MHz switching frequency. The measured peak efficiency is 83% and 87% at 1.2A and 0.6A LED currents, respectively. This achieved efficiency represents an improvement of more than 10% over conventional approaches.
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U2 - 10.1109/CICC.2010.5617443
DO - 10.1109/CICC.2010.5617443
M3 - Conference contribution
AN - SCOPUS:78649827877
SN - 9781424457588
T3 - Proceedings of the Custom Integrated Circuits Conference
BT - IEEE Custom Integrated Circuits Conference 2010, CICC 2010
T2 - 32nd Annual Custom Integrated Circuits Conference - The Showcase for Circuit Design in the Heart of Silicon Valley, CICC 2010
Y2 - 19 September 2010 through 22 September 2010
ER -