Title :
A 10V fully-integrated bidirectional SC ladder converter in 0.13µm CMOS using nested-bootstrapped switch cells
Author :
Dougherty, Christopher M. ; Lin Xue ; Pulskamp, Jeffrey ; Bedair, Salah ; Polcawich, Ronald ; Morgan, Brian ; Bashirullah, Rizwan
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Florida, Gainesville, FL, USA
Abstract :
This paper presents a fully-integrated bidirectional SC ladder converter in 0.13μm 1.2V/3.3V triple-well CMOS with peak output voltage of ~10V. The converter actively drives a 5nF mm-sized piezo-electric robotic wing while following <;500Hz arbitrary waveforms at ~3x step-up conversion. High voltage drive signals for the power switches are developed using a new voltage-distributed nested-bootstrapping technique for full range bidirectionality. Peak efficiency is 77% at ~800μW load with 9V output.
Keywords :
CMOS integrated circuits; bootstrap circuits; driver circuits; ladder networks; piezoelectric actuators; power convertors; robots; arbitrary waveform; efficiency 77 percent; full range bidirectionality; fully-integrated bidirectional SC ladder converter; high voltage drive signal; nested-bootstrapped switch cells; peak efficiency; peak output voltage; piezoelectric robotic wing; power switches; size 0.13 mum; step-up conversion; triple-well CMOS; voltage 1.2 V; voltage 10 V; voltage 3.3 V; voltage 9 V; voltage-distributed nested-bootstrapping technique; Actuators; CMOS integrated circuits; CMOS technology; Clocks; Logic gates; NIST; Switches; CMOS; DC-DC converter; high-voltage driver;
Conference_Titel :
VLSI Circuits (VLSIC), 2013 Symposium on
Conference_Location :
Kyoto
Print_ISBN :
978-1-4673-5531-5
