Comparing the Traditional Oscillator Amplitude Control Loop (with ‘zero’) and Li-Tsividis’s Direct-Q Control Loop Personal Report

نویسنده

  • Bernabé Linares-Barranco
چکیده

if , then , where is the constant oscillator amplitude, set (arbitrarily) by initial conditions. An automatic amplitude control loop can be used to adjust exactly at ‘0’ and make the final oscillator amplitude be set at a specified reference voltage . Fig. 1 illustrates this. It is known that, if stays sufficiently close to zero so that the oscillator frequency can be considered constant, then [1]-[3]

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Nonlinear Guidance Law with Finite Time Convergence Considering Control Loop Dynamics

In this paper a new nonlinear guidance law with finite time convergence is proposed. The second order integrated guidance and control loop is formulated considering a first order control loop dynamics. By transforming the state equations to the normal form, a finite time stabilizer feedback linearization technique is proposed to guarantee the finite time convergence of the system states to zero...

متن کامل

A Phase Noise Reduction Technique in LC Cross-coupled Oscillators with Adjusting Transistors Operating Regions

In this paper, an intuitive analysis of a phase noise reduction technique is done, and then a modified structure is proposed to achieve higher phase noise reduction than the original one. This method reduces the impact of noise sources on the phase noise by decreasing closed-loop gain in zero-crossings points and moving this high closed-loop gain to the non-zero-crossings points. This reduction...

متن کامل

Automatic Tuning of Quality Factors for Vhf Cmos Filters

To correct the frequency response of an integrated filter for process and temperature variations, tuning of the cut-off frequency [l] (f-tuning) is generally applied. Several filters are also provided with automatic tuning of the quality factors (Q-tuning) [2]. Combined fand Q-tuning can be applied with either a master VCF [2] (Voltage Controlled Filter). or a master VCO [3] (Voltage Controlled...

متن کامل

An efficient method to control the amplitude of the limit cycle in satellite attitude control system

In this paper, an efficient method is presented to control the attitude of a satellite with ON-OFF actuator. The main objective of this novel method is to control the amplitude of the limit cycle which commonly appears in the steady state of such systems; and at the same time by consideration of real actuator constraints, reduce the fuel consumption of system. The Proposed method is a combinati...

متن کامل

Stability analysis and feedback control of T-S fuzzy hyperbolic delay model for a class of nonlinear systems with time-varying delay

In this paper, a new T-S fuzzy hyperbolic delay model for a class of nonlinear systems with time-varying delay, is presented to address the problems of stability analysis and feedback control. Fuzzy controller is designed based on the parallel distributed compensation (PDC), and with a new Lyapunov function, delay dependent asymptotic stability conditions of the closed-loop system are derived v...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2002