Logisim is a program used for digital circuits simulation – gates, flip-flops and latches. This paper presents a simple method, which allows simulation of circuits, designed for the power electronics devices, based on digital control units.

VLSI Cell Partitioning plays a substantial part in VLSI physical design. The task of designing integrated circuits is multifaceted, as modern circuits have a very huge number of modules. It is very much essential to split the circuit into a smaller and meeker logic blocks. In order to build a complex digital integrated circuit, the multi million transistors must be sub-divided into convenientnu...

We present the formal framework for a novel approach for specifying and automatically implementing systems such as digital circuits and network protocols. The goal is to reduce the design time and effort required to build correct, efficient, complex systems and to eliminate the need for the designer to deal directly with global synchronization and concurrency issues. Our compiler automatically ...

multiplier is one of the important components in many systems such as digital filters, digital processors and data encryption. improving the speed and area of multipliers have impact on the performance of larger arithmetic circuits that are part of them. wallace algorithm is one of the most famous architectures that uses a tree of half adders and full adders to increase the speed and reduce the...

C. W. Barnes, “Roundoff noise and overflow in normal digital filters,” IEEE Tram. Circuits Syst., vol. CAS-26, pp. 154159, Mar. 19’79. W. L. Mills, C. T. Mullis, and R. A.-Roberts, “Normal realizations of IIR digital filters,” in 1979 IEEE Int. Qnf. Acoustics, Speec,h, Signal Processing Rec., pp. 340-343, Apr. 1979. M. Atjmattd and R. A. Roberts, “Reduced multiplier, low roundoff noise digital ...

We are interested in developing programs that reason about digital electronic circuits, in order to design, redesign, and debug them The first step toward developing such programs is to determine a useful way of representing the design and operation of circuits A useful representation must make apparent the roles of various circuit components in implementing the overall circuit function, and mu...

In the expanding world of modern electronics and integrated circuits, the need for high-density, highperformance electronic circuit packaging is paramount. Key to any successful electronic packaging activity is the ability to model and analyze electrical, mechanical, and thermal system behavior before actual system design and fabrication. Details of an APL-developed set of computer-based models...

Scalable circuits of organic logic and memory are realized using all-additive printing processes. A 3-bit organic complementary decoder is fabricated and used to read and write non-volatile, rewritable ferroelectric memory. The decoder-memory array is patterned by inkjet and gravure printing on flexible plastics. Simulation models for the organic transistors are developed, enabling circuit desi...

Undergraduated students in computer science at the University of Brest are learning bases of digital circuits by developing their own functional and structural models. The approach is object oriented to aggregate diierent abstraction levels in one single structure. This paper presents how simple combinatorial and sequential circuit can be functionally modelized and how complex circuits can hier...

The evolution of CMOS technology demands new approaches to implement radio-frequency integrated circuits. This paper presents two digital-intensive frequency synthesizers implemented in 65-nm CMOS: a digital period frequency synthesizer and an all-digital phase-locked loop. The experimental circuits cover frequency ranges of 0.1 4.3 GHz and 2.7 6.1 GHz.