This article explores the use of a variable inductor as reactive element for energy transfer in dual-active-bridge (DAB) converter. By using controlled inductor, optimal switching region operation phase-shift DAB can be extended, and thus, high efficiencies achieved over wider load ranges compared to traditional solution. Moreover, combined inductance together with phase shift, two control para...

In this paper, a modified CCCII is presented. We have used a current mirror with low supply voltage. This circuit is operated at low supply voltage of ±1V. Tspice simulations for TSMC 0.18μm CMOS Technology has shown that the current and voltage bandwidth are respectively 3.34GHz and 4.37GHz, and parasitic resistance at port X has a value of 169.32Ω for a control current of 120μA. In order to r...

A differentially excited symmetric inductor that enhances inductor quality ( ) factor on silicon RF ICs is presented. Compared with an equivalent single-ended configuration, experimental data demonstrate that the differential inductor offers a 50% greater factor and a broader range of operating frequencies. Predictions from full-wave simulations and a physics-based SPICE-compatible model are va...

A novel zero-voltage-transition (ZVT) pulsewidth modulated (PWM) Cúk power-factor corrector (PFC) is proposed to achieve unity power factor under zero-voltage-switching (ZVS) operations. In the proposed ZVT PWM Cúk PFC, not only the power switch, but also the power diode, commutate under ZVS. The proposed topology has the shortest ZVT time and, thus, the shortest minimum duty cycle compared wit...

The generalised steady-state analysis of the multi-phase interleaved boost converter with coupled inductors operated in continuous inductor current mode is addressed. The analytical expressions for efficiency, inductor and input currents, and output voltage are derived from the transformed average state–space model. Generalised expressions for the input and inductor current ripples and the outp...