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- Title
Selectable Output Voltage High Efficiency Boost Converter.
- Authors
Cheng, Li-Ye; Sun, Chen; Zhou, Zhen-Wei
- Abstract
The paper proposed a high efficiency boost converter with constant voltage (CV) and constant current (CC) modes. The selection of CV or CC working mode is based on the requirement, and the transient time from CV to CC mode is 230μs. The boost converter is particularly for the use of Li-ion battery portable devices. High efficiency is obtained by sleep/burst mode under light load and pulse width modulation (PWM) mode under heavy load. The quiescent current of the whole chip can be down to 6μA when the converter enters the standby mode. The converter has been made of 0.35μm complementary metal-oxide semiconductor (CMOS) process. Experimental results show that the peak efficiency is 98.2% at a 1.5A output current and a 4.2V input voltage.
- Subjects
ELECTRIC potential; ELECTRIC current converters; PULSE width modulation; COMPLEMENTARY metal oxide semiconductors; SWITCHING transients; ELECTRIC transients
- Publication
Journal of Circuits, Systems & Computers, 2018, Vol 27, Issue 11, pN.PAG
- ISSN
0218-1266
- Publication type
Article
- DOI
10.1142/S0218126618501785