Paper Info
Title
An integrated voltage-mode PWM controlled buck converter with active compensation
Abstract
Integrated step down DC to DC converters (buck converter) are widely used for battery powered devices. This paper presents an integrated voltage-mode PWM controlled buck converter for low power applications. A novel active compensation stage is implemented inside the buck converter to increase the loop control stability and to reduce stability dependence on the equivalent series resistance (ESR) of the output capacitor. The simulated phase margin of the control loop is 50 degree with 50mΩ ESR. A test chip is designed and fabricated in a 0.25 μm BiCMOS process. The measured peak efficiency of this buck converter with 30 mA load current is more than 87 percent and the measured output voltage ripple is less than 6 mV in steady-state.
Year
DOI
Venue
2010
10.1109/ICECS.2010.5724694
ICECS
Keywords
Field
DocType
esr,integrated circuit testing,resistance 50 mohm,dc-dc power convertors,battery-powered devices,equivalent series resistance,low-power applications,bicmos integrated circuits,test chip,pwm power convertors,integrated circuit design,active compensation,step down dc-dc converters,bicmos process,size 0.25 mum,integrated voltage-mode pwm-controlled buck converter,loop control stability,current 30 ma,pulse width modulation,manganese,buck converter,steady state,chip
Boost converter,Capacitor,Computer science,Control theory,Voltage,Pulse-width modulation,Forward converter,Electronic engineering,Ćuk converter,Control engineering,Phase margin,Buck converter
Conference
ISBN
Citations 
PageRank 
978-1-4244-8155-2
1
0.43
References 
Authors
2
5
Name
Order
Citations
PageRank
Lei Liao132.19
Tobias D. Werth242.10
Stefan Kaehlert321.51
Ralf Wunderlich47627.94
Stefan Heinen531.70