Oscillators model are interesting models for applications that involve synchronization phenomena and are increasingly used in science and engineering. However they have two main limitations, first their synchronization properties are limited in the sense that they have a finite entrainment basin, second they have no memory of past interactions (i.e. they come back to their intrinsic frequency w...

The dynamical behaviour of the forced escape oscillator, which depends on the parameter values we considered, have been studied numerically using the techniques of phase portraits and Poincar'{e} sections. Also, we employed perturbation methods such as Lindstedt's method to obtain the frequency-amplitude relation of escape oscillator.

This article presents a super twisting sliding-mode control (ST-SMC) for single-phase dynamic voltage restorers (DVRs). Unlike the conventional first-order controller, proposed ST-SMC technique eliminates need differentiating compensation in sliding surface function while keeping merits of SMC. As consequence employing ST-SMC, continuous signal is achieved from which pulsewidth modulation (PWM)...

A new topology of a high-speed adaptive oscillator for on-chip clock generation, especially suitable for FPGA based systems, has been proposed here. The oscillator generates more precise dual phase dual frequency. The simulation results show 30% improvement over conventional approaches in performance parameters for the new circuit architecture.The optimized simple circuit and more stable operat...

We address a neural-oscillator-based control scheme to achieve biologically inspired motion generation. In general, it is known that humans or animals exhibit novel adaptive behaviors regardless of their kinematic configurations against unexpected disturbances or environment changes. This is caused by the entrainment property of the neural oscillator which plays a key role to adapt their nervou...

duffing harmonic oscillator is a common model for nonlinear phenomena in science and engineering. this paper presents he´s energy balance method (ebm) for solving nonlinear differential equations. two strong nonlinear cases have been studied analytically. analytical results of the ebm are compared with the solutions obtained by using he´s frequency amplitude formulation (faf) and numerical solu...

A voltage scaling technique for energy-efficient operation requires an adaptive power-supply regulator to significantly reduce dynamic power consumption in synchronous digital circuits. A digitally controlled power converter that dynamically tracks circuit performance with a ring oscillator and regulates the supply voltage to the minimum required to operate at a desired frequency is presented. ...

in this work, time domain analysis is used to solve adler’s equation in order to obtain the required time, for an oscillator under external injection, reaching the steady-state condition. mathematical approach has been applied to fully describe the transient of frequency acquisition in injection-locked lc and ring oscillators considering their time-varying nature. then, the analysis is verified...