2014 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC)最新文献_第7页

Beginning of the national training project for CFE's distribution operators CFE分销操作员全国培训项目启动

2014 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC) Pub Date : 2014-11-01 DOI: 10.1109/ROPEC.2014.7036326

Jose Angel Valdez Sanchez, Julio César Suárez-Duarte, Nohemi Pacheco Tecuapetla, Ignacio Luna Lopez

引用次数: 1

Feasibility assessment of the installation of a photovoltaic system as a battery charging center in a mexican mining company 在墨西哥一家矿业公司安装光伏系统作为电池充电中心的可行性评估

2014 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC) Pub Date : 2014-11-01 DOI: 10.1109/ROPEC.2014.7036352

D. Banda, R. Peña, G. Gutiérrez, Edith Juarez, N. Visairo, C. Nuñez

引用次数: 9

Current reference for energy harvesting: 50um per side, At 70 nW, regulating to 125C 能量收集的电流参考:每边50um，在70 nW，调节至125℃

2014 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC) Pub Date : 2014-11-01 DOI: 10.1109/ROPEC.2014.7036288

Ali Far

{"title":"Current reference for energy harvesting: 50um per side, At 70 nW, regulating to 125C","authors":"Ali Far","doi":"10.1109/ROPEC.2014.7036288","DOIUrl":"https://doi.org/10.1109/ROPEC.2014.7036288","url":null,"abstract":"Suitable for ultra low power applications, including energy harvesting, the proposed current reference belongs to a resistor-free category of CMOS circuits that combines a PTAT signal dependent on VT and CTAT signal dependent on MOSFET's μ to generate a relatively temperature and VTH independent current source. The proposed topology delivers a 10 nA current reference that consumes under 70 nW of power operating with a VDD as low as 0.65V. At about 45um by 55um, it is 4 to 50 times smaller in size, compared to prior art current references in its category, and it has a temperature span that exceeds 125C versus about 80C limit for most of its comparable alternatives, according to Monte Carlo simulations. Higher temperature span is achieved by (1) Sensing the PTAT voltage and forcing the Ir at the gate and not the source of the reference current loop, (2) employing differential source followers to generate a larger PTAT voltage instead of prior art use of either asymmetric current mirrors or scaled self-cascode, and (3) using donut shaped equal W/L transistors to minimize drain size for less leakage current. Larger PTAT voltage helps desensitize Ir from offsets (due to VTH and W/L mismatches associated with transistors in current mirror and loop amplifier). The proposed topology allows for elimination of asymmetric transistors and cascoded current mirrors in the Ir current loop. As a result, compact die size is realized, the impact of source-drain junction leakages is reduced substantially, and hot temperature span is extended. MC simulations, and analysis verifies that TC of about ± 350 ppm/C over a 150C temperature span is achievable, and VC of about ± 0.1% /V in 180nm standard digital CMOS.","PeriodicalId":357133,"journal":{"name":"2014 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125214761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Heart rate variability using photoplethysmography with green wavelength 利用绿色波长光容积脉搏波描记技术进行心率变异性研究

2014 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC) Pub Date : 2014-11-01 DOI: 10.1109/ROPEC.2014.7036296

L. M. Ruiz, A. Manzo, Edgar Casimiro, Edgar Cardenas, R. Gonzalez

{"title":"Heart rate variability using photoplethysmography with green wavelength","authors":"L. M. Ruiz, A. Manzo, Edgar Casimiro, Edgar Cardenas, R. Gonzalez","doi":"10.1109/ROPEC.2014.7036296","DOIUrl":"https://doi.org/10.1109/ROPEC.2014.7036296","url":null,"abstract":"Cardiovascular diseases are on a continuous rise and the number of people who suffer sudden cardiac arrest. It has been recognized a direct influence between the autonomie nervous system and cardiac activity in the human body. Sometimes causes of disease can be explained by studying the relationship of both parts. Analyzing the beat to beat variations from de cardiac events can show valuable information about the health of the nervous system, which regulates and coordinates the activity of different biological systems. Such variations have been measured and analyzed in the last two decades from studies with electrocardiography (ECG) but in this project is pretended to use photoplethysmography (PPG), as it is a simpler and lower cost non invasive method than ECG. The aim of this project is to develop a prototype for the study of heart rate variability (HRV) based on reflected green light PPG. Equipment was designed with computer support for obtaining the photoplethysmographic signal and processing the information with frequency methods. Results using Fast Fourier Transform (FFT) have shown that photoplethysmographic technique can be used to perform HRV studies. The spectral components in the different ranges established in previous studies demonstrate the expected behavior with PPG, although it is still important to consider other tests and techniques of information processing.","PeriodicalId":357133,"journal":{"name":"2014 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130831052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Computation of available transfer capability considering transient stability constraints 考虑暂态稳定约束的可用传输能力计算

2014 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC) Pub Date : 2014-11-01 DOI: 10.1109/ROPEC.2014.7036314

Miguel Chavez-Lugo, C. Fuerte-Esquivel, A. Pizano-Martinez

引用次数: 1

Wind turbine inverse control: A bond graph approach 风力涡轮机逆控制:键合图方法

2014 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC) Pub Date : 2014-11-01 DOI: 10.1109/ROPEC.2014.7036354

Carlos Patino, Roberto Tapia, A. Medina, C. Fuerte

引用次数: 2

Transmission expansion planning considering energy storage 考虑储能的输电扩容规划

2014 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC) Pub Date : 2014-02-09 DOI: 10.1109/ROPEC.2014.7036327

C. MacRae, M. Ozlen, Andreas T. Ernst

引用次数: 9

Sliding mode fuzzy observers and neural networks applied to solve fault detection and isolation problem 应用滑模模糊观测器和神经网络解决故障检测与隔离问题

2014 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC) Pub Date : 2014-02-09 DOI: 10.1109/ROPEC.2014.7036311

J. Anzurez-Marín, E. Espinosa-Juárez, B. Castillo-Toledo

引用次数: 1

Reduction of stray losses in Tertiary Voltage Bushings in power transformer tanks 减少电力变压器储罐中三次电压套管的杂散损耗

2014 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC) Pub Date : 2014-02-09 DOI: 10.1109/ROPEC.2014.7036312

S. Magdaleno-Adame, J. C. Olivares-Galvan, S. Maximov, R. Escarela-Perez, E. Campero-Littlewood, Patricia Penabad-Duran

引用次数: 6