Version 2c, 3 October 2004 It is well known that dielectric absorption plays a critical role in determining the accuracy of analog sampled-data systems that are based on charge storage, such as sampleand-holds and switched-capacitor ADCs. Less appreciated, but no less important, is the role it plays in determining the quality factor, or Q, of the capacitor. Dielectric absorption has both storag...

The proposed photovoltaic Micro Inverter is based on three port flyback with one port dedicated to power decoupling function so the decoupling capacitance is reduced and hence the long lifetime film capacitor is used. One of the two transformers and one capacitor is used for decoupling function. The decoupling capacitor functions as energy storage as well as snubber capacitor to recycle the tra...

This paper addresses a bi-directional dc/dc converter suitable for an energy storage system with an additional function of galvanic isolation. An energy storage device such as an electric double layer capacitor is directly connected to one of the dc buses of the dc/dc converter without any chopper circuit. Nevertheless, the dc/dc converter can continue operating when the voltage across the ener...

This paper presents analytical models for studying the transient behavior of several power harvesting circuit topologies for use with piezoelectric bending transducers. Specifically, the problem of charging a large storage capacitor, which is inherently a time-varying process, is considered. Three circuit designs are studied—direct charging, synchronized switching and discharging to a storage c...

In this paper, a model of a railxun is developed and ~ used to illustrate a d&harge event on an energy storage capacitor. This rallgun model is designed to operate at a power level compatible with the Naval Combat Survivability testbed. The rallgun simulation model is Incorporated Into the NCS pulsed power charging circuit models. Simulations are perfonned showing the charglnx circuits charging...

This work presents a CMOS integrated interface circuit (IIC) enabling highly efficient energy transfer from piezoelectric generators (PGs) to a storage element, e.g. a large capacitor. Due to the low power consumption of 4.7 μW assuming a supply voltage of 2.5 V, the IIC can be supplied totally by the storage capacitor. The storage capacitor can be passively charged via a bypassing circuit if i...

In order to solve the amplitude attenuation of electric fast transient (EFT) generator operating in high frequency, the charging and discharging process of energy storage capacitor in EFT generator are analyzed, the main circuit voltage variation mathematical model is established, the parameters of main loop circuit and the parameters of switch driving waveform which affect burst amplitude are ...

Forward converters generally exhibit poor power factor when employing in the AC-DC conversion, due to the presence of zero input current near the zero crossing of line input voltage. In this paper, a single-switch forward converter with high power factor and low storage capacitor voltage stress is proposed. By adding a stack up voltage on top of the reflected input voltage on the forward conver...

A multiple-valued logic-in-memory VLSI using ferroelectric capacitors is proposed to realize an arithmeticoriented VLSI with real-time programmable capacitor storage. The use of a remnant-polarization charge on a ferroelectric capacitor makes it possible to perform not only a real-time programmable storage function, but also a linearsum function, thereby resulting in a compact hardware while ma...

A new control scheme is presented which provides simultaneous control of the output voltage and the energy storage capacitor voltage in the full-bridge Boost Integrated with Buck RectifiedEnergy storage/Dc-dc converter (full-bridge BIBRED). The new control scheme solves the problem of wide voltage excursions for the energy storage capacitor voltage under variable load conditions. A low frequenc...