TY - GEN
T1 - Load current adaptive control of a monolithic CMOS DC/DC converter for dynamic power management
AU - Su, Wei Chi
AU - Tzou, Ying-Yu
PY - 2007/12/1
Y1 - 2007/12/1
N2 - This paper presents the design of a monolithic current-mode CMOS DC/DC converter with integrated power switches and an on-chip passive adaptive controller with the sensed average inductor current. The sensed switched current, combined with the integration of inductor voltage, and a voltage-controlled floating resistor, can be used for the adaptive control of a CMOS DC/DC converter. The nonlinear carrier control can adjust carrier according to input voltage to reduce the input disturbance. The proposed control scheme has been design and simulation verified based on the TSMC 0.35μm technology. The designed CMOS DC/DC switching regulator is based on a rated output current of 500mA with an adjustable output voltage from 1.0V to 1.8V. Simulation results shows the proposed adaptive control scheme can achieve a fast dynamic power on transient response as well as a robust voltage regulation against large loading current variation.
AB - This paper presents the design of a monolithic current-mode CMOS DC/DC converter with integrated power switches and an on-chip passive adaptive controller with the sensed average inductor current. The sensed switched current, combined with the integration of inductor voltage, and a voltage-controlled floating resistor, can be used for the adaptive control of a CMOS DC/DC converter. The nonlinear carrier control can adjust carrier according to input voltage to reduce the input disturbance. The proposed control scheme has been design and simulation verified based on the TSMC 0.35μm technology. The designed CMOS DC/DC switching regulator is based on a rated output current of 500mA with an adjustable output voltage from 1.0V to 1.8V. Simulation results shows the proposed adaptive control scheme can achieve a fast dynamic power on transient response as well as a robust voltage regulation against large loading current variation.
KW - CMOS DC/DC converters
KW - Dynamic power management
KW - Fast dynamic response
KW - Load current adaptive control
KW - Nonlinear carrier
KW - Synchronous buck regulator
UR - http://www.scopus.com/inward/record.url?scp=48349140447&partnerID=8YFLogxK
U2 - 10.1109/PESC.2007.4342015
DO - 10.1109/PESC.2007.4342015
M3 - Conference contribution
AN - SCOPUS:48349140447
SN - 1424406552
SN - 9781424406555
T3 - PESC Record - IEEE Annual Power Electronics Specialists Conference
SP - 370
EP - 376
BT - PESC 07 - IEEE 38th Annual Power Electronics Specialists Conference
Y2 - 17 June 2007 through 21 June 2007
ER -