VHDL
The Research of Development and Aapplication of Digital Frequency Meter Based on FPGA
This paper makes a preliminary study on the technology and application of FPGA. FPGA technology represents the latest development direction of EDA. Through the design based on HDL language and EDA tools, FPGA can achieve most of the hardware circuit functions of a complex system within a chip, with the characteristics of flexible design, high [...]
Research of FPGA-based Harmonic Detecting in Power System
This paper studies the electric power system harmonic detection problem. Harmonic detection is an important aspect of the problems in power system harmonic, and is a base to solve other problems related to harmonic.The paper describes in detail the damage which the power harmonics bring to the power system and various electrical equipments.The damage shows [...]
Digital Control Technique of Parallel Resonant Inverter
Control strategy for the parallel-resonance induction heating power supply is designed in this paper. It analyzed the load character and control object for a parallel inverter. the conclusion that series and parallel resonant circuit are two antithetic circuits is pointed out, this provides a theoretical guide to the control circuit design for these two inverters. [...]
Research of Doppler Frequency Measurement Technology Based on FPGA
The technology of frequency measure is abroad applied in development of ocean, navigation on ship and so many fields based on the effect of Doppler in the sound wave under water. Although the GPS is developing in the high speed, but the Doppler log is still not replaced, especially in marine affairs. Now the new [...]
Design of the Hardware Unit Based-On FPGA of Characteristic Analysis on Induction Motors
Electrical machines, as one of important mechanical and electrical products, are widely used in many fields such as industry, agriculture, daily life, etc. For ensuring quality of electrical machines and researching their characteristic, testing is a necessary step. Recently, new methods have been developed along with the wide use of computer technology in many fields. [...]
The Design of GPIB Interface Chip and Application in Logic Analyzer
The topic–the Design of GPIB Interface Chip and application In Logic analyzer has two main parts: The first part is the design of GPIB interface board based on CPLD; the second part is the design of a programmable logic analyzer to communicate by using GPIB interface. In this, the design of GPIB interface board is [...]
Design and Realization of the Control and Protection System of Belt Conveyor Based on FPGA
As a continuous transportation system, the belt conveyor system has been widely used in metallurgical, coal, mining, chemical, power, ports and other industries.During continuous operation period of conveyor belt, the phenomenon such as belt creeps, broken belt, tearing, running deviation, material heaps would happen, which result in serious consequences. In order to improve the reliability [...]
Configuration of Treble-Redundancy Fly-By-Light Control System’s Data Bus
Fly-By-Light Control System is a new generation of control system after Fly-By-wire Control System. At present, with the continuous development of the FBL Control System, the investigation of high reliable FBL Control System goes more important. This thesis studied redundant technique of data bus of FBL control system, determine the required amount of redundancy and [...]
Traffic Controller Design and Simulation Based on VHDL
With the developing of the integrated circuit , the Electronic Design Automation (EDA) technology has become an important design method of analog and digital circuit,and has been widely used in analog and digital circuitry and many other fields. The EDA technology,which is closely connected with the electronic technology, microelectronics technology and computer science, can be [...]