In this work a non-linear efficiency optimization method for its application to an Injection-Locked High Efficiency Voltage Controlled Oscillator is presented. The proposed approach is based on the control of the harmonic content of the oscillator autonomous signal, which is accomplished through the use of an Auxiliary Generator and several multi-harmonic loads based on Arbitrarily Width-Modula...

A completely monolithic high-Q oscillator, fabricated via a combined CMOS plus surface micromachining technology, is described, for which the oscillation frequency is controlled by a polysilicon micromechanical resonator to achieve stability and phase noise performance comparable to those of quartz crystal oscillators. It is shown that the closed-loop, steady-state oscillation amplitude of this...

A realization of a current-controlled current-mode four-phase quadrature oscillator based on current differencing transconductance amplifiers (CDTAs) is proposed. The proposed oscillator circuit employs only three CDTAs and two grounded capacitors, which can provide four high output impedance sinusoidal current outputs with four-phase difference. The oscillation condition and oscillation freque...

A modified inductance-capacitance voltage controlled oscillator (LC-VCO) topology is presented in this paper. NMOS only varactor has been used instead of variable capacitance. The frequency of oscillation of the VCO is 7.68GHz with a power dissipation of 5.68mW. The designed oscillator is characterized by a tuning range of 26.73%. Compared to the reference circuit, there is an improvement in fr...

A feasibility study of design-for-testability (DFT) of a voltage controlled crystal oscillator with built-in MOS switches to increase its observability and controllability is presented. The primary aim was to assess to what extent the operation of the circuit is changed when the switches are introduced. The possibility of non-destructive localization of faulty components in the provided test mo...

A recent experimental demonstration of a parametric magnetization oscillation excited by applying microwave voltage to ferromagnetic metal will be applicable not only new switching method but also bio-inspired computing. It should be, however, noted that phase the is uniquely locked, related fact frequency twice value oscillation. There are two possible phases in state, and which realized depen...

The Matsuoka oscillator has been used to control various robots that perform rhythmic movements. The oscillator-driven control system usually takes a feedback structure. While the oscillator actuates some part of a controlled object, some state variable of the object is fed back to the oscillator. An important property of this control scheme is that the oscillator comes to drive the object at i...