Implemented 5-bit 125-MS/s successive approximation register (SAR) analog to digital converter (ADC) on FPGA is presented in this paper.The design and modeling of a high performance SAR analog to digital converter are based on monotonic capacitor switching procedure algorithm .Spartan 3 FPGA is chosen for implementing SAR analog to digital converter algorithm. SAR VHDL program writes in Xilinx ...

this paper presents a grid connected photovoltaic system, which acts as both power generator and active power filter (apf), based on flying capacitor multicell (fcm) converter. increase in the number of output voltage levels, natural self-balancing of flying capacitors and dc link voltage and lower power rating of components are the main futures of fcm converter compared with conventional multi...

Space Engineering SpA has recently developed a multi-processor, multi-FPGA (Field Programmable Gate Array), compact platform, including a multiple analog interface based on high-speed and high-accuracy ADC (Analog to Digital Converter) and DAC (Digital to Analog Converter). The platform with related software is intended to be a potentially powerful development system for the implementation of s...

In this paper we present a novel RAM-based field programmable mixed-signal integrated device consisting of a large granularity Field Programmable Gate Array (FPGA), a set of programmable and interconnectable analog cells, and a microprocessor core. Two configuration contexts are available, at least one of them mapped on the microprocessor memory space. The microprocessor can be used for partial...

In this paper we report the development of a prototype for a new kind of detector intended for scintimammography imaging. Traditional photon counting information is available; moreover digital words representing the amplitude of each event and suitable image elaboration methods significantly enhance detector capabilities. The prototype detector is composed of a collimator and 4 imaging modules....

Maximum power point trackers have a significant role in optimizing the energy conversion efficiency photovoltaic system. The numeric achievements of MPPT algorithm can be implemented and tested by using several embedded boards as Digital Signal Processor, Field-Programmable Gate Array, Arduino, dspace. Alternatively, for low cost, availability simplicity, PIC microcontrollers used compared with...

This paper presents, linear peak current mode controller for the control of DC/DC buck converter is designed and analyzed. Dynamic equations describing the buck converter are derived and linear peak current mode controller is designed. The buck converter, the voltage mode and current mode controller are modeled and are evaluated by computer simulations. The proposed technique has the advantages...

A new bidirectional isolated Zero-VoltageSwitching (ZVS) DC-DC converter with nonpulsating input and output current is proposed. This converter is ideally suited for battery charging application and is applied as a submodule in a battery storage system based on a modular multilevel converter (MC). The current output of the proposed DC-DC converter enables small current ripple for directly inter...

A zero-voltage, zero-current switching (ZVZCS) PWM DC-DC power converter with secondary active rectifier tested as a dc current source for arc welding is described in this paper. The soft switching DC-DC converter consists of high frequency inverter, high frequency power transformer and controlled output rectifier with new secondary energy recovery turn-off snubber. Circulating current in the c...

Optical communication modulation technology and networking are two important technologies for constructing free-space optical (FSO) communication. In this paper, pulse width (PWM) is used to realize The process of signal demodulation implemented by means a field programmable gate array (FPGA). An relay system constructed networking. binary data bits in the converted into signals different width...