The stochastic resonance algorithm with the direct current signal as external force and its application to the detection of weak chromatographic peaks

2017 ◽  
Vol 40 (20) ◽  
pp. 4091-4096 ◽  
Author(s):  
Rui Li ◽  
Bingren Xiang ◽  
Haishan Deng ◽  
Shaofei Xie
Keyword(s):  
Stochastic Resonance ◽  
External Force ◽  
Direct Current ◽  
Current Signal ◽  
Chromatographic Peaks

Design of Digital Single-Phase Full-Bridge Invert Controller Based on TMS320F28027

2013 ◽  
Vol 448-453 ◽  
pp. 2137-2142
Author(s):  
Xiao Jian Ye ◽  
Zhen Gang Duan ◽  
Zhuo Shen ◽  
Xiao Qin Lian ◽  
Xiao Li Zhang
Keyword(s):  
Direct Current ◽  
Traditional Method ◽  
Single Phase ◽  
Sine Wave ◽  
New Method ◽  
Digital Controller ◽  
Duty Ratio ◽  
Current Signal ◽  
Wave Signal ◽  
Stable Performance

This paper elaborates a method to realize the single phase full bridge inverter digital controller based on DSP TMS320F28027 and gives the design scheme of both its hardware and its software. In accordance with SPWM duty ratio parameter calculated with DSP algorithm, utilizing the EPWM module on DSP, it finally attains the inverting control from direct current signal to sine wave signal. Compared with traditional method, this new method improves the output waveform effectively and shows stable performance.

Entropic stochastic resonance without external force in oscillatory confined space

2015 ◽  
Vol 142 (19) ◽  
pp. 194109 ◽  
Author(s):  
Huai Ding ◽  
Huijun Jiang ◽  
Zhonghuai Hou
Keyword(s):  
Stochastic Resonance ◽  
External Force ◽  
Confined Space

scholarly journals Design and Construction of 1 KVA Power Inverter System

2018 ◽  
pp. 1-14
Author(s):  
A. E. Abioye ◽  
M. O. Ogbuatu ◽  
M. O. Oluwe ◽  
B. O. Egonwa ◽  
K. Ekiokeme
Keyword(s):  
Direct Current ◽  
Integrated Circuit ◽  
Working Life ◽  
Alternating Current ◽  
Current Signal ◽  
Oscillator Circuit ◽  
Charging Mode ◽  
Dc Current ◽  
Surge Current ◽  
Design And Construction

The inverter system is a device that converts the Direct Current (DC) from a battery to an Alternating Current (AC) which can be used for appliances. It does not only convert the current but also steps the voltage of the battery up to the required value. The inverter system does not require fuel to make it function, that makes it cheap.  The circuit has seven (7) embedded circuits in it; namely the oscillator circuit, which comprises the 4047 Oscillator Integrated Circuit (IC), It converts the DC current signal to AC signal at the same frequency. The current modification circuit, this comprises the switching transistors and the cascaded MOSFETs, which modifies the current to the desired input to the step up transformer which steps it up to the required voltage and current. The battery low circuit indicates when the inverter battery is low, while the battery full circuit indicates when the inverter battery is full. The change over circuit changes the source from AC main to battery automatically. The rectifying circuit charges the battery and lastly the inverter on circuit: this indicates when the inverter is on. The inverter system also has the battery full indicator, which helps to safe – guard the life of the battery while charging and it automatically switches of charging mode once the battery is full. The inverter system has timer for delaying the incoming current surge to protect the inverter from the large surge current and increase the working life of the inverter. The inverter was tested and the result obtained showed that it was able to bear the load up to 870 VA.

scholarly journals The Application of Multiobjective Genetic Algorithm to the Parameter Optimization of Single-Well Potential Stochastic Resonance Algorithm Aimed at Simultaneous Determination of Multiple Weak Chromatographic Peaks

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Haishan Deng ◽  
Shaofei Xie ◽  
Bingren Xiang ◽  
Ying Zhan ◽  
Wei Li ◽  
...  
Keyword(s):  
Genetic Algorithm ◽  
Simultaneous Determination ◽  
Stochastic Resonance ◽  
Peak Shape ◽  
Sudan Dyes ◽  
Data Set ◽  
Multiobjective Genetic Algorithm ◽  
Single Well ◽  
Chromatographic Peaks

Simultaneous determination of multiple weak chromatographic peaks via stochastic resonance algorithm attracts much attention in recent years. However, the optimization of the parameters is complicated and time consuming, although the single-well potential stochastic resonance algorithm (SSRA) has already reduced the number of parameters to only one and simplified the process significantly. Even worse, it is often difficult to keep amplified peaks with beautiful peak shape. Therefore, multiobjective genetic algorithm was employed to optimize the parameter of SSRA for multiple optimization objectives (i.e.,S/Nand peak shape) and multiple chromatographic peaks. The applicability of the proposed method was evaluated with an experimental data set of Sudan dyes, and the results showed an excellent quantitative relationship between different concentrations and responses.

Simplex-Stochastic Resonance Algorithm Applied to Detection of Weak Chromatographic Peaks

2010 ◽  
Vol 43 (5) ◽  
pp. 851-857 ◽  
Author(s):  
Liyan Yu ◽  
Wei Zhang ◽  
Bingren Xiang ◽  
Shaofei Xie ◽  
Haishan Deng ◽  
...  
Keyword(s):  
Stochastic Resonance ◽  
Chromatographic Peaks
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