TY - JOUR
T1 - Design of an average-current-mode noninverting buck-boost DC-DC converter with reduced switching and conduction losses
AU - Wei, Chia Ling
AU - Chen, Chin Hong
AU - Wu, Kuo Chun
AU - Ko, I. Ting
N1 - Funding Information:
Manuscript received December 20, 2011; revised March 4, 2012; accepted March 20, 2012. Date of current version July 13, 2012. This work was supported by the National Science Council, Taiwan, under Grant NSC 100-2220-E-006-015, and also supported in part by Advanced Optoelectronic Technology Center (AOTC) and Green Energy Electronics Research Center (GREERC), National Cheng Kung University, Tainan, Taiwan. The chip fabrication was supported by National Chip Implementation Center (CIC), Taiwan. Recommended for publication by Associate Editor B. Lehman.
PY - 2012
Y1 - 2012
N2 - With the rapid growth of battery-powered portable electronics, an efficient power management solution is necessary for extending battery life. Generally, basic switching regulators, such as buck and boost converters, may not be capable of using the entire battery output voltage range (e.g., 2.5-4.7V for Li-ion batteries) to provide a fixed output voltage (e.g., 3.3 V). In this paper, an average-current-mode noninverting buck-boost dc-dc converter is proposed. It is not only able to use the full output voltage range of a Li-ion battery, but it also features high power efficiency and excellent noise immunity. The die area of this chip is 2.14 × 1.92mm 2 , fabricated by using TSMC 0.35 μm 2P4M 3.3 V/5V mixed-signal polycide process. The input voltage of the converter may range from 2.3 to 5V with its output voltage set to 3.3V, and its switching frequency is 500 kHz. Moreover, it can provide up to 400-mA load current, and the maximal measured efficiency is 92.01%.
AB - With the rapid growth of battery-powered portable electronics, an efficient power management solution is necessary for extending battery life. Generally, basic switching regulators, such as buck and boost converters, may not be capable of using the entire battery output voltage range (e.g., 2.5-4.7V for Li-ion batteries) to provide a fixed output voltage (e.g., 3.3 V). In this paper, an average-current-mode noninverting buck-boost dc-dc converter is proposed. It is not only able to use the full output voltage range of a Li-ion battery, but it also features high power efficiency and excellent noise immunity. The die area of this chip is 2.14 × 1.92mm 2 , fabricated by using TSMC 0.35 μm 2P4M 3.3 V/5V mixed-signal polycide process. The input voltage of the converter may range from 2.3 to 5V with its output voltage set to 3.3V, and its switching frequency is 500 kHz. Moreover, it can provide up to 400-mA load current, and the maximal measured efficiency is 92.01%.
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U2 - 10.1109/TPEL.2012.2193144
DO - 10.1109/TPEL.2012.2193144
M3 - Article
AN - SCOPUS:84864148511
VL - 27
SP - 4934
EP - 4943
JO - IEEE Transactions on Power Electronics
JF - IEEE Transactions on Power Electronics
SN - 0885-8993
IS - 12
M1 - 6177674
ER -