Paper Info
Title
Cmos Current-Controlled Oscillators
Abstract
The work presented in this paper is about the design of current-controlled oscillators (ICO). Two ICOs are proposed. Aiming at reducing the duration of the short-circuit currents caused by slowly-changing voltages in the circuits, signal conversion blocks are introduced to generate sharp pulses. In this way, the power efficiency of the circuits is improved, which leads to an extensive performance improvement of the circuits. Both ICOs can operate over a frequency range from 100 KHz to 900 MHz. The quality of the output waveforms; before buffers is good and over the entire frequency range the rise/fall time is consistently short. The power dissipation of the ICOs is very low, the same as that of a 5-stage current-starving ring oscillator. Moreover, the scheme of the ICOs allows an easy adjustment of the duty cycle of the output pulse signals. A simple digital control structure of the duty cycle has also been proposed.
Year
DOI
Venue
2007
10.1109/ISCAS.2007.378078
2007 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOLS 1-11
Keywords
Field
DocType
power dissipation,oscillators,signal generators,voltage,digital control,short circuit current,duty cycle,integrated circuit design,power efficiency,ring oscillator,oscillations,frequency,active networks,circuits
Electrical efficiency,Ring oscillator,Fall time,Computer science,Duty cycle,Control theory,Electronic engineering,CMOS,Integrated circuit design,Electronic circuit,Electrical engineering,Digital control
Conference
ISSN
Citations 
PageRank 
0271-4302
2
0.42
References 
Authors
2
2
Name
Order
Citations
PageRank
Junhong Zhao1277.02
Chunyan Wang2236.51