Title :
A staircase conductance modulation scheme for input-current-shaping in switched-capacitor DC-DC converters
Author :
Safwat, Sally ; Jain, R. ; Kesling, Dawson
Author_Institution :
Mixel, Inc., San Jose, CA, USA
Abstract :
We present a digital feedback control scheme that mitigates input current discontinuity in Switched Capacitor Voltage Regulators. The switch resistance profile that results in constant input current is derived and implemented on a four-ratio regulator. The details of this digital scheme is presented. Simulations on 32nm CMOS show reduction of up to 70% in the input current peak.
Keywords :
CMOS integrated circuits; DC-DC power convertors; circuit feedback; switched capacitor networks; voltage regulators; digital feedback control scheme; four-ratio regulator; input current discontinuity; size 32 nm; switch resistance profile; switched capacitor voltage regulators; switched-capacitor DC-DC converters; Detectors; Radiation detectors; Resistance; Switches; Transistors; Voltage control;
Conference_Titel :
Circuits and Systems (ISCAS), 2014 IEEE International Symposium on
Conference_Location :
Melbourne VIC
Print_ISBN :
978-1-4799-3431-7
DOI :
10.1109/ISCAS.2014.6865472
