In this paper, an optical communication receiver system for 5Gbps applications is proposed concerning power consumption. An inductor-less circuit in three-stages is proposed as the trans-impedance amplifier (TIA), which benefits from the inherent low input resistance of a common gate topology as the first stage. By forming two zeros in this TIA, proper frequency response […]
Engines with variable poppet valve timing systems are among numerous efforts that aim to reduce engine emissions and/or increase efficiency. In the present paper we have investigated the stability of a magnetic valve system in MATLAB. First we designed the magnet and interactive forces inside the electromagnetic valve system, then we produced a mechanical model […]
In this paper Fuzzy-FOPID controller is used in order to control automatic voltage regulator (AVR) system. This controller has six parameters. In this paper, optimization method is employed to determine the controller parameters. For this purpose, imperialist competitive algorithm (ICA) is used for its high accuracy and good performance. To illustrate performance of proposed controller, […]
This paper presents the simulation of the process of LDMOS transistor manufacturing by using Silvaco software and by relying on the ability of calculating the basic parameters of transistor dependencies, focusing on the optimization of the manufacturing process in order to increase the current of work. The simulation of manufacturing process of this type of […]
In this paper we presented a novel MEMS acoustic sensor using corrugated diaphragm. The corrugated diaphragm is used to decrease the effect of residual stress and thus improve the sensitivity of micromachined acoustic sensor. The displacement and mechanical sensitivity of flat and corrugated diaphragms, and also open-circuit sensitivity and pull-in voltage of sensors are calculated […]
During the extremely-hot weather or transient heat waves, air conditioners are the main contributors to highest peak electricity demand which may lead to the widespread blackouts or brownouts. Meanwhile, electric drive vehicles are rapidly gaining popularity due to the global warming and energy crisis. Hence, this paper schedules on optimal charge and discharge decisions of […]
The semiconductor circuits dissipate energy in the form of binary digits. This dissipation of energy is in the form of power consumption. ALU is complex circuit and is one of many components within CPU. It performs mathematical and bitwise operations. This paper proposes a new low power 8 bit ALU digital circuit for nano scale […]
Dense Wavelength Division Multiplexing (DWDM) communication system is an all optical network technology that transmit information by sending light pulse through a single mode fiber. Proposed technology can increase the capacity and bandwidth of optical network. DWDM system consists of different passive and active components such as transponders, fibers, passive optical filters, and an optical […]
Side-channel attacks are considered to be the most important problems of modern digital security systems. Today, Differential Power Attack (DPA) is one of the most powerful tools for attacking hardware encryption algorithms in order to discover the correct key of the system. In this work, a new scheme based on randomizing power consumption of a […]
This paper presents a simulation of the dynamic voltage stability in power system. In application of modern power system, dynamic assessment of voltage stability is known as basic concept. In order to study dynamic voltage stability in a power system, different dynamic boundaries are defined such as, Hopf bifurcation (HB) boundary. HB point is an […]
