This article proposes a novel mean for tuning the natural frequency of an electromagnetic resonant shunt, using a pulse-width modulation (PWM) circuit. It is used to modulate the value of the capacitance of the shunt, and the electrical frequency is shown to be proportional to the command parameter of the PWM, the duty cycle. An easy and efficient ...
This article proposes a novel mean for tuning the natural frequency of an electromagnetic resonant shunt, using a pulse-width modulation (PWM) circuit. It is used to modulate the value of the capacitance of the shunt, and the electrical frequency is shown to be proportional to the command parameter of the PWM, the duty cycle. An easy and efficient ...
Published in Physical biology
We consider a generic biological process described by a dynamical system, subject to an input signal with a high-frequency periodic component. The rapid oscillations of the input signal induce inherently multiscale dynamics, motivating order-reduction techniques. It is intuitive that the system behaviour is well approximated by its response to the ...
Published in Journal of the Korean Physical Society
In this paper, a pulse-width-modulation (PWM)-based silicon photonics receiver for optical power monitoring that was realized using a 90-nm CMOS silicon-on-insulator (SOI) process is reported. By monitoring the DC or the AC power in the optical nodes and converting it into an electrical signal, large-scale photonic integrated circuits can acquire s...
The paper proposes an optimization formulation of the control problem for power electronic converters. A benefit of the approach is a systematic method for the control of high switch-count static converters. In the case of the 3-phase, 4-leg, 2-level inverter, the framework provides a characterization of all the possible solutions that yield a maxi...
Une manière élégante d'exploiter efficacement les redondances de commande disponibles pour les convertisseurs statiques multi-niveaux est de formuler des problèmes d'optimisation contraints. Ces problèmes sont similaires aux problèmes dits d'allocation de commandes rencontrés pour les systèmes mécaniques sur-actionnés. Les redondances et les contra...
Near-field wireless power transfer (WPT) technology facilitates the energy autonomy of heterogeneous systems, significantly augmenting complementary metal-oxide-semiconductor field-effect-transistor (CMOS) technology. In low-power wearable devices, existing power conditioning integrated circuits do not maximize the power factor (PF) for rectificati...
Dans nos travaux, nous nous intéressons à la commande des convertisseurs statiques à grand nombre d’interrupteurs. Le développement des topologies multi-niveaux multi-bras a ouvert l’accès aux domaines de la forte puissance et de la haute qualité harmonique. Outre cette montée en puissance, la commande spéciale de ces dispositifs permet de conférer...
Dans nos travaux, nous nous intéressons à la commande des convertisseurs statiques à grand nombre d'interrupteurs. Le développement des topologies multi-niveaux multi-bras a ouvert l'accès aux domaines de la forte puissance et de la haute qualité harmonique. Outre cette montée en puissance, la commande spéciale de ces dispositifs permet de conférer...
Published in EURASIP Journal on Wireless Communications and Networking
An improved triple-pulse high-power pulse-width modulation (HP-PWM) signal model is proposed to enhance the performance of current underwater sonar transmitter. The presented model is based on reducing the third and fifth harmonic energy of the HP-PWM signal. The achievement of low-power consumption has been implemented using class D amplifier and ...
