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This contribution investigates behavioral MOSFET models used for the simulation of conducted and radiated electromagnetic interferences (EMI) of an automotive inverter. A combined simulation of an equivalent circuit and the 3D geometry for a traction inverter based on 1.2 kV, 40 A SiC MOSFETs is presented. The model considers the MOSFET as a combination of parasitic elements of the package, voltage-dependent...
In today's PV inverters, the high input capacitance, necessary for the energy storage during the slow 60Hz cycle is provided by bulky electrolytic capacitors. Liquid electrolyte stored in the capacitor is quickly evaporated due to above rating temperatures, leading to a rise in ESR (equivalent series resistance). The resulting elevated heat dissipation reduces efficiency and accelerates degradation,...
The solar power plant is one of the renewable energy that already was implemented in around the world. The important component in the renewable power plant is inverter device that convert the direct current to alternating current. The problem in the inverter are power quality, harmonics, and grid system. This paper introduced design inverter single phase with totem pole circuit. The circuit reduces...
This paper reviews existing reset schemes for the Muller C-element, one of the main primitives in asynchronous paradigms. Using a mathematical-based method and with the help of pass-transistor logic, an efficient implementation is developed that yields better performance. Simulations with a standard IBM 130-nm CMOS process, confirm that the proposed design achieves substantial improvement over existing...
A switching circuit system based on FPGA is designed and implemented in this paper to provide high- frequency adjustable-phase voltages for the ultrasonic motor. For the existing drive systems of the ultrasonic motor, the bus voltage is usually 12 V DC or 24 V DC supporting by an external adapter, the driving voltages of the ultrasonic motor, however, are required to be boosted yet. Then, the step-up...
Ordinary single phase inverter gives a square wave output which when applied to electrical appliances may damage the later, reduce its efficiency as well as life as this inverter output waveform is not sinusoidal and contains lower and higher order harmonics in addition to fundamental. Moreover, the output voltage cannot be controlled. In this paper a single phase half bridge inverter is discussed...
At present, the SiC devices have been widely concerned with the excellent characteristics of low switching losses, which can significantly improve the frequency of power electronic converters, and also have broad application prospects in the field of rail transportation. In this paper, through the establishment of 1500V powered subway auxiliary inverter loss model, the author estimated loss and efficiency...
A new technique of Ripple carry adder using majority gate based CMOS output wired logic is implemented. The ripple carry adder consists of four Full adder blocks. The carry from each stage is fed to the next stage as carry input. The Sum and carry outputs are obtained using output wired CMOS logic based majority gate. The number of transistors used in the proposed circuit design is less as compared...
In this paper, a 400kHz high-frequency dual-buck inverter is fabricated for the applications of small scale renewable energy generation. A systematic calculation method for the converter's loss distribution is proposed to evaluate the efficiency. This method concerns the impacts caused by the high frequency on the loss distribution, which are always neglected by the traditional method. In the last,...
In order to research the conducted EMI modeling of the inverter circuit, in this paper the high frequency models of power semiconductor devices, passive components, and extractions of parasitic parameters of passive components, printed circuit board (PCB) are presented. The simulation model of conducted EMI of the inverter circuit is proposed by using the Saber software and its simulation waveform...
The clock distribution network consists of the clocked tree and flip flops. In this paper we have designed sense amplifier energy recovery (SAER), static differential energy recovery (SDER), differential conditional capturing energy recovery (DCCER), signal conditional capturing energy recovery (SCCER) and self gated energy recovery (SGR) flip flops. Among these flip flops SGR flip flop is giving...
A theory has been developed for geometric variation of trigate FinFETs. This geometric variation includes both line roughness induced variation and oxide-thickness variation, which can be measured from gate capacitance and Ig current variations, respectively. Experimental results show that trigate devices are subject to serious line variations as the fin height scales up and the fin-width scales down,...
Analog and digital circuit design architectures are usually regarded as being separate spheres - with very different objectives, and thus consequently with very different methods of approaching the design challenges.
As advanced functionality is being demanded from distributed generation (DG) systems, smart inverters are being developed to provide reactive compensation to provide system support during grid disturbances. This compensation, however, leads to increased semiconductor device stress in the inverter. This work investigates the electro-thermal impacts of inverter grid support upon the longevity of SiC...
A high-performance and energy-efficient 256-bit CMOS priority encoder is presented and realized on transistor level using 32 nm predictive technology. The new circuit is designed with a full custom approach and incorporates 2 novel logic styles: the Multiple-Output Monotonic CMOS (M2CMOS) and the Dynamic Inversion technique (DI). The achieved performance is in the order of O(log2(N)), with respect...
Using the modern elements in a radio-electronic equipment requires close attention to processes as in branch of design and production of electronic components to use the last development in the field simulation of components and in the field computer-aided design of an equipment on the basis of radio-electronic components for the purpose of support adequacy, accuracy and convergence. Possibilities...
We developed a gate driver IC that can power IGBTs of up to 500 amperes for HEVs and EVs. A newly developed Zener clamping circuit effectively suppressed the IGBT spike voltage in short circuit (SC) mode. The silicon-on-insulator (SOI) process was utilized to achieve high temperature operation and high surge protection.
This paper proposes a novel highly reliable single-stage buck-boost inverter. It can be operated as grid-connected and stand-alone inverter. In a single-stage, it can generate an output ac voltage higher and lower than the input dc voltage. The proposed inverter can be employed in grid-connected single-phase PV systems without injecting large dc current into the grid. In addition, it has no shoot-through...
An input/output characteristics of the inverter composed of the DNA/Si-MOSFET and the parasitic capacity was studied. The DNA was bridged between the Si electrodes those serve as the source and drain with the 120nm-gap-length. At VDD=0V and VDD=3V, the output characteristic was almost the same. The reason of this phenomenon is that the space charge layer of the DNA/Si-MOSFET changes due to the charge...
There is currently an ongoing effort to promote the installation of low power, residential and commercial, DC microgrids, which allow the incorporation of renewable energy sources (RES) into local generation systems. Since it is intended that RES generate as much energy as possible, and often this energy is not consumed locally, a common practice is to inject the surplus energy into the grid to ensure...
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