The Design and Implementation of High Precision Three-Phase Sine-Wave Signal Generator

2014 ◽  
Vol 543-547 ◽  
pp. 838-841
Author(s):  
Shou Qiang Kang ◽  
Shan Shan Li ◽  
Shi Zheng ◽  
Di Wu
Keyword(s):  
High Precision ◽  
Design Method ◽  
Synthesis Method ◽  
Sine Wave ◽  
Signal Generator ◽  
Lookup Table ◽  
Direct Digital Frequency Synthesis ◽  
Wave Signal ◽  
Design And Implementation ◽  
Three Phase

A design and implementation method of high precision three-phase sine-wave signal generator is proposed based on MCU and FPGA. For the traditional design method, direct analog synthesis method and phase locked loop (PLL) technology are used to design the signal generator. So the function, the precision and other aspects are inadequate. Aiming to the problem, a signal generator is designed based on direct digital frequency synthesis (DDS) technology. The MCU is used to control the peripheral devices and the frequency and phase control word can be obtained. The DDS module is achieved by EP4CE6E22C8 and the waveform lookup table addresses are outputted. The digital three-phase sine-wave data can be read from the lookup table. Through the three-way D/A converter and the amplifier circuit, the digital signal is converted to analog signal and the three-phase sinusoidal wave is outputted. The precision can be improved by increasing the sampling points, phase accumulator bits and D/A bits, and then, high precision three-phase sine-signal can be obtained and the adjustable frequency precision is 0.001.

Design of a Functional Signal Generator Based on MAX038 and Microcontroller

2014 ◽  
Vol 915-916 ◽  
pp. 1167-1170 ◽  
Author(s):  
Hao Hu
Keyword(s):  
Power Amplifier ◽  
Sine Wave ◽  
Signal Generator ◽  
Function Generator ◽  
Triangular Wave ◽  
Square Wave ◽  
Wave Signal ◽  
Frequency Adjustment ◽  
Voltage Amplifier ◽  
Output Amplitude

Based on SCM STC89C52 and MAX038, a function signal generator for generating a frequency and amplitude can be programmed to adjust the sine wave, square wave and triangular wave signal. MAX038 function generator with a small amount of peripheral devices are responsible for generating waveforms, which then are input into the LM6361 wideband voltage amplifier and a power amplifier is output. Master STC89C52 is responsible for selecting and managing the waveform types, frequency adjustment, output amplitude adjustment, LCD, and keyboard work of each module operation.

Adjustable Voltage and Frequency Polyphase Sine Wave Signal Generator

1976 ◽  
Vol IA-12 (3) ◽  
pp. 312-316 ◽  
Author(s):  
John P. Walden ◽  
Fred G. Turnbull
Keyword(s):  
Sine Wave ◽  
Signal Generator ◽  
Wave Signal

Design and Implementation of Digital Signal Generator Based on LPC2132

2013 ◽  
Vol 303-306 ◽  
pp. 1869-1872
Author(s):  
Zhi Jun Guo ◽  
Huan Mei Yan
Keyword(s):  
Frequency Synthesizer ◽  
Design Method ◽  
Gain Control ◽  
Digital Signal ◽  
Sine Wave ◽  
Signal Generator ◽  
Logic Device ◽  
Digital Frequency ◽  
Complex Programmable Logic Device ◽  
Master Control

A design method of the digital signal generator, based on LPC2132 as the master control chip, is introduced in this paper. The system has used of a chip of the direct digital frequency synthesizer (DDS) and a complex programmable logic device(CPLD) to produce the sine wave, square wave and triangle wave, and has designed circuits of analog signal amplification and gain control. Realized the switch of different signal through the keyboard, it is a new kind of the digital signal source, which has performances including stabilizing waveform, higher precision, adjustable amplitude and frequency on the permitted scope.

A Design Method of Signal Generator Based on DSP6713 and D/A Converter

2013 ◽  
Vol 336-338 ◽  
pp. 1514-1518 ◽  
Author(s):  
Liang Dong Wen ◽  
Bo Hua Yin ◽  
Jun Biao Liu
Keyword(s):  
Automatic Control ◽  
Digital Signal Processor ◽  
Output Voltage ◽  
Design Method ◽  
Digital Signal ◽  
Sine Wave ◽  
Signal Generator ◽  
Direct Digital Synthesizer ◽  
Digital To Analog ◽  
Signal Processor

The system completes the design of signal generator by using the technology of the Direct Digital Synthesizer (DDS). The DSP6713 designed as a key device, realizes outputting triangle wave and sine wave. The digital to analog (D/A) converter circuit is composed of AD768 and LTC1597, which helps improve the speed of converting and modulate the range of the output voltage by Digital Signal Processor (DSP), comparing with using one chip of D/A and proportional amplifier. In addition, bus topology makes extending system functions become easy. The system can be widely used in such field as communication, automatic control and instruments.

Study on Electrical Automation with Design of the PWM Signal Generator Based on MSP430

2013 ◽  
Vol 703 ◽  
pp. 278-281
Author(s):  
Yu Wen Zhai ◽  
Gang Liu ◽  
Xiao Yang
Keyword(s):  
Duty Cycle ◽  
High Speed ◽  
Signal Generator ◽  
The Other ◽  
Voltage Controlled Oscillator ◽  
Dc Voltage ◽  
Wave Signal ◽  
Three Phase ◽  
Arbitrary Waveform ◽  
Electronics And Electrical

The PWM signal generator, in which the DC voltage, sine AC or arbitrary waveform signal can be the base wave to control the duty cycle, is designed in this paper. The high-speed comparator modulates the two signals, one is the base wave signal generated by MSP430F169 and the other one is the PWM modulated wave signal generated by the voltage controlled oscillator, and then generates the PWM signal. The frequency of the PWM signal can be regulated, the frequency and waveform of the base wave can be programmed and the three-phase SPWM signal can be generated. The PWM signal generator can be applied in the field of converting technology in power electronics and electrical automation.

Design of Three-Phase Reference Energy Meter Based on FPGA and ARM

2014 ◽  
Vol 986-987 ◽  
pp. 1804-1808
Author(s):  
Xian Wei Wang ◽  
Zheng Qian ◽  
Shuang Shu Tian ◽  
Yong Jie Qiu
Keyword(s):  
High Precision ◽  
Small Volume ◽  
Design Method ◽  
Electric Energy ◽  
Parameter Measurement ◽  
Engineering Applications ◽  
Advantages And Disadvantages ◽  
Energy Meter ◽  
Three Phase ◽  
The Individual

Compared with the normal energy meters which use the integrated measurement chip as the key component, the three-phase reference energy meter based on FPGA and ARM possesses the advantages of high precision. And compared with the energy meters which use DSP as the key part, it has the advantages of small volume and multi-parameter measurement. The design method of three-phase reference energy meter integrating FPGA with ARM is presented in this paper. And the individual miniaturization design are discussed, the key parts during the realization are also discussed. After that, two kinds of electric energy metrological algorithm which are digital differential and instantaneous IV are introduced according to the characteristic of the system, and the advantages and disadvantages of them are compared. All this work will provide powerful foundation for the engineering applications of design method.

The Design and Implementation of a Multifunctional Programmable Signal Generator

2012 ◽  
Vol 190-191 ◽  
pp. 1074-1078
Author(s):  
Xue Zhe Li ◽  
Xu Ming Wang
Keyword(s):  
High Precision ◽  
Signal Generator ◽  
Signal Source ◽  
Sinusoidal Wave ◽  
Communication Interface ◽  
Dc Voltage ◽  
Design And Implementation ◽  
Electronic Measurement ◽  
System Project ◽  
Flexible Operation

Signal source with high precision and programmable is needed in modern scientific research, communication system, teaching apparatus, electronic measurement and so on. In the paper, a portable signal generator is proposed, which has a core of AT89C51 and programmable DDS integrated chip AD9833. The paper also introduces the principle and implementation of system project. The generator can output sinusoidal wave, square wave, triangle wave, dc voltage, and it has manual and SPC two working mode, can implement PC SPC output through RS232 communication interface. Experiments show that the system has advantages of high precision, wide scope, small size and flexible operation etc.

Sign in / Sign up

Export Citation Format

Share Document