ABSTRACT A design for a voltage-controlled ring oscillator (VCO) is presented. The design
allows an implementation of low frequency ring oscillator using relatively small devices and …

This paper presents a voltage controlled ring oscillator (VCO) with wide tuning range and
adjustable duty cycle. The circuit was designed using Rohm 0.18 μm technology with 1.5 V …

Abstract Voltage Controlled Oscillator plays significant role in communication system design.
The design of Voltage Controlled Oscillator (VCO) with low power consumption and high …

The traditional ring voltage-controlled oscillator (VCO) generally uses the method of
controlling resistance to change the oscillation frequency. This paper describes a 2GHz fully …

A CMOS voltage controlled ring oscillator with quadrature output is presented. The circuit is
designed in a 0.18/spl mu/m CMOS process and operates on a 2.0 V supply. The VCO has a …

A 900MHz CMOS voltage controlled ring oscillator with quadrature output is presented. The
circuit is designed in a 0.18/spl mu/m CMOS process and operates on a 1.8 V supply. The …

In this paper a new Voltage Controlled Ring Oscillator is presented. The proposed VCO
uses partial positive feedback in its delay cell, allowing the circuit to operate with single two …

This paper describes a voltage controlled ring oscillator (VCO) with low-phase-noise. The
VCO consists of two-stage fully differential delay cells proposed by Yan, has been analyzed …

A 900-MHz two-stage CMOS voltage controlled ring oscillator (VCRO) with quadrature
output is presented. The circuit is designed in a 0.18-um CMOS technology and operated on …

In the present work, improved designs for voltage controlled ring oscillators (VCO) with
reverse body bias technique have been presented. In the proposed designs, output …