In this project a number of circuits [1-4] with the characteristics of a passive inductor are to be assessed for their suitability for implementation in MMIC applications as a means of introducing a tuning function and as a replacement for the conventional passive inductor.

Positive charge pumps, also known as inductor-less DC/DC converters, are very common in white LED drivers. They are less expensive and simpler to use, but they usually achieve a lower efficiency than inductor-based boost circuits. In this paper, we describe a novel negative charge-pump design for a white LED driver that can automatically select the 1X/1.5X mode. Unlike a conventional positive c...

The main objective of this project to control the common mode leakage current by using virtual dc bus with PV systems. The power which we receive form the PV panel is not a constant supply due to various condition. In order to overcome this issue we are using Buck Boost converter for generating constant voltage supply to the inverter. The negative pole of the dc bus is connected directly to the...

In 1982 Broniatowki [J. Appl. Phys. 56 (1982) 2907] estimated theoretically what is the change of capacitance as seen by a capacitance meter if an inductor is set in series with a DLTS sample. To the best of our knowledge, there have been no experimental studies on the inductor coupled in series with the sample to clarify in which way the inductor would actually change the DLTS spectra. In this...

the cúk converter, which has voltage buck and boost ability, offers high flexibility as an interface device for solar panels. in addition, current ripple can be more reduced because of two input and output inductors at both sides. this paper presents a new application of current-variable inductors in a cúk converter that reduces the size and capacity of storage elements. because of two inductor...

The Low Noise Amplifier (LNA) is very much important in achieving good reception sensitivity in the wideband transceiver of Ultra Wide Band (UWB) architecture. In this paper, the LNA is designed for Multi Band-Orthogonal Frequency Division Multiplexing (MB-OFDM) receiver, which is used to transmit the information on 14 different sub bands of UWB with minimum of 528 MHz frequency in each band. T...

In this paper, a high-conversion-ratio bidirectional dc–dc converter with coupled inductor is proposed. In the boost mode, two capacitors are parallel charged and series discharged by the coupled inductor. Thus, high step-up voltage gain can be achieved with an appropriate duty ratio. The voltage stress on the main switch is reduced by a passive clamp circuit. Therefore, the low resistance RDS(...

In this paper, a novel high step-up DC-DC converter for distributed generation (DG) system is proposed. The concept is to utilize two capacitors and one coupled-inductor. The two capacitors are charged in parallel during the switch-off period and are discharged in series during the switch-on period by the energy stored in the coupled inductor to achieve high stepup voltage gain. In addition, th...

Since fuel cells store more energy and batteries supply more power, fuel cell–battery systems can be smaller than single-source supplies. The 0.18-μm CMOS switched-inductor charger–supply shown, for example, draws constant power from an energy source and supplementary power from a battery to supply a 0.8-V load and recharge the battery with excess power. With 62% – 83% efficiency across 0.1 – 8...

Efficient wireless energy transfer between two inductor-capacitor circuits has been demonstrated by applying the principles of Coupled Mode Theory to create a system of strongly-coupled, resonating magnetic fields. This paper makes a detailed analyzes how Coupled Mode Theory is used to increase energy transfer between two simple inductor-capacitor circuits.