Because the on-board charger (OBC) is installed in electric vehicles (EVs), high power density is regarded as a key technology. Among components of the OBC, inductors occupy more than 30% of the total volume. Thus, it is important to reduce the volume and the weight of inductors while maintaining thermal stability. Discontinuous conduction mode (DCM) can satisfy these requirements; however, onl...

Within the photovoltaic (PV) power-generation market, the ac PV module has shown obvious growth. However, a high voltage gain converter is essential for the module’s grid connection through a dc–ac inverter. This paper proposes a converter that employs a floating active switch to isolate energy from the PV panel when the ac module is OFF; this particular design protects installers and users fro...

In this paper, a novel high step-up DC-DC converter with coupled-inductor and voltage-doubler circuits is proposed. The converter achieves high step-up voltage gain with appropriate duty ratio and low voltage stress on the power switches. Also, the energy stored in the leakage inductor of the coupled inductor can be recycled to the output. The operating principles and the steady-state analyses ...

This paper presents simple lumped element equivalent circuit for the coplanar waveguide (CPW) square spiral inductor. The circuit is based on physical modelling which takes into consideration the parasitic effects inherent in the CPW spiral inductor. The obtained scattering parameters are in good agreement with fullwave and quasi-static results available in the literature. Such a simple circuit...

Based on the fact that the real inductor and the real capacitor are fractional order in nature and the fractional calculus, the transfer function modeling and analysis of the open-loop Buck converter in a continuous conduction mode (CCM) operation are carried out in this paper. The fractional order small signal model and the corresponding equivalent circuit of the open-loop Buck converter in a ...

A 1.1-GHz fully integrated GaAs MESFET active inductor is presented in this paper. Both the inductance and loss resistance are tunable with the inductance independent of series loss tuning. The measured loss resistance is tunable over a 10to +15range with a corresponding change in inductance of less than 10% at 100 MHz and less than 4% for frequencies above 500 MHz. The inductance is tunable fr...

Noise Coupling in Heavily and Lightly Doped Substrate from Planar Spiral Inductor Tony Yeung, Alan Pun, Zhiheng Chen, Jack Lau, Fran cois J.R. Cl ement Dept. of Electrical & Electronic Engineering, The Hong Kong University of Science & Technology Center for Integrated Systems, Stanford University, Stanford, CA 94305 Abstract| Recently, much studies have been done to include on-chip inductors fo...

This paper discusses the use of printed circuit board (PCB) integrated inductors for low power dc/dc buck converters. Coreless, magnetic plates and closed core structures are compared in terms of achievable inductance, power handling and efficiency in a footprint of 10 10mm. The magnetic layers consist of electroplated NiFe, so that the process is fully compatible with standard PCB process. Ana...

The main folder (name: non-linear inductor) includes four subfolders (Buck, Buck_Average, Behavior and Param_Mod), each folder contains one simulation project for the corresponding simulation circuit. The inductor data refers to a 77254A7 iron powder core (Kool Mu) characteristics, drawn from MAGNETICS data sheets. Technical data: http://www.mag-inc.com/pdf/MAGNETICS_Powder_Core_Technical_Data....

This integrated single inductor dual-output boost DC/DC converter provides two independently regulated outputs with maximum efficiency at 83%. The converter operates in PWM and discontinuous mode at 500kHz using a 6.8uH inductor. Each output is time-multiplexed and regulated via current mode control. A drain-extended 0.13um technology allows backlight application up to 11V operation. The chip o...