TY - GEN
T1 - Dual mode digital buck converter controller without current sensor
AU - Chen, Yu Lin
AU - Chen, Jiann Fuh
AU - Lai, Dai Wei
PY - 2018/4/25
Y1 - 2018/4/25
N2 - The common buck converter is used the pulse width modulation (PWM) mode under the heavy load and the pulse frequency modulation (PFM) mode under the light load to obtain the high efficiency. The control method, switching the PWM mode and the PFM mode automatically depend on the different loads, needs the current sensor to judge whether the inductor current is zero or not. The paper uses the no current sensing technology which switches the two modes automatically without the current sensor. Use the field programmable gate array (FPGA) to verify the functions and implement a buck converter which has 3∼4.2 V input voltage, 1.2 V output voltage and 86 % highest efficiency under 0.5 A output current. After the FPGA verification, the control circuit has been implemented in TSMC 1P6M 0.18 μm CMOS technology.
AB - The common buck converter is used the pulse width modulation (PWM) mode under the heavy load and the pulse frequency modulation (PFM) mode under the light load to obtain the high efficiency. The control method, switching the PWM mode and the PFM mode automatically depend on the different loads, needs the current sensor to judge whether the inductor current is zero or not. The paper uses the no current sensing technology which switches the two modes automatically without the current sensor. Use the field programmable gate array (FPGA) to verify the functions and implement a buck converter which has 3∼4.2 V input voltage, 1.2 V output voltage and 86 % highest efficiency under 0.5 A output current. After the FPGA verification, the control circuit has been implemented in TSMC 1P6M 0.18 μm CMOS technology.
UR - http://www.scopus.com/inward/record.url?scp=85048808206&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85048808206&partnerID=8YFLogxK
U2 - 10.1109/IESES.2018.8349859
DO - 10.1109/IESES.2018.8349859
M3 - Conference contribution
AN - SCOPUS:85048808206
T3 - Proceedings - 2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems, IESES 2018
SP - 118
EP - 123
BT - Proceedings - 2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems, IESES 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 1st IEEE International Conference on Industrial Electronics for Sustainable Energy Systems, IESES 2018
Y2 - 30 January 2018 through 2 February 2018
ER -
