High speed analysis of transient stability by digital signal processors

2005 ◽  
Author(s):  
Y. Minami ◽  
K. Nakamuraa ◽  
H. Fujita ◽  
M. Sone
Author(s):  
Nakul C. Kubsad

Abstract: Full adder circuit is one among the fundamental and necessary digital part. The full adder is be a part of microprocessors, digital signal processors etc. It's needed for the arithmetic and logical operations. Full adder design enhancements are necessary for recent advancement. The requirement of an adder cell is to provide high speed, consume low power and provide high voltage swing. This paper analyses and compares 3 adders with completely different logic designs (Conventional, transmission gate & pseudo NMOS) for transistor count, power dissipation and delay. The simulation is performed in Cadence virtuoso tool with accessible GPDK – 180nm kit. Transmission gate full adder has sheer advantage of high speed, fewer space and also it shows higher performance in terms of delay. Keywords: Delay, power dissipation, voltage, transistor sizing.


2009 ◽  
Vol 55 (6) ◽  
pp. 282 ◽  
Author(s):  
Ramesh Pushpangadan ◽  
Vineeth Sukumaran ◽  
Rino Innocent ◽  
Dinesh Sasikumar ◽  
Vaisak Sundar

2021 ◽  
Author(s):  
G. Srividhya ◽  
T. Sivasakthi ◽  
R. Srivarshini ◽  
P. Varshaa ◽  
S. Vijayalakshmi

In today’s digital world, Arithmetic computations have been evolved as a core factor in digital signal processors, micro-controllers, and systems using arithmetic and logical operations such as adders, multipliers, image processors, and signal processors. One of the elements that play an important role in performing arithmetic calculations is an adder. Among many adders, the Carry Select Adder produces less propagation delay. However, there may be an increased delay, power consumption, and area required in the case of a normal Carry Select Adder. To overcome the mentioned drawbacks, an improved model of Carry Select Adder has been designed that uses Binary to Excess – 1 Converter. Instead of using multiple blocks of Ripple Carry Adders (RCAs), it is efficient and effective if one of the blocks is replaced with Binary to Excess – 1 Converter. As a result, we can achieve a high speed adder with minimal delay, minimal power, and reduced area.


To get the desired response of the sensor less Vector controlled Induction Motor (SVC-IM) by the experimental setup, the controller implementation for the generation of the PWM signals is the key role. It is possible with the rapid growth of electronic industry such as high speed digital signal processors (DSPs) with micro controllers available in the present market. In the past DSP technologies were used to realize the several SVC-IM schemes, i.e. KF, PI, GA and PSO respectively. However, it creates issues related to the time delay and execution of the PWM signals, etc., as a results system becomes complex. Therefore a new approach is implemented to overcome the issues related to the execution time, namely Field Programmable Gate Array (FPGA) processors are suggested in the present market. Moreover the programming is done using very high speed hardware descriptive language (VHDL)


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