Results 1 to 10 of about 10,778 (221)
Some of the next articles are maybe not open access.
Research on The Operation Control Strategy of Local Ventilation Emergency Power Supply in Mine
exalyDesign of a mine-used switching power supply
Gong-kuang zidonghua, 2018 For problems of existing mine-used switching power supply such as large harmonic current, low power factor and so on, a mine-used switching power supply was designed by use of technologies of active power factor correction and resonant soft switching ...
LIN Yin
doaj +2 more sources
Design analysis of mine-used intrinsic safety power supply
Gong-kuang zidonghua, 2014 In view of requirements that intrinsic safety power supply must has multi-protection of over-current and over-voltage, the paper introduced working principle of a circuit of mine-used intrinsic safety power supply based on LM317 regulator, analyzed ...
LIU Qi
doaj +2 more sources
Design of mine-used intrinsically safe remote relay power supply
Gong-kuang zidonghua, 2016 In order to satisfy long-distance transmission requirements of sensor used on underground super long working face, a mine-used intrinsically safe remote relay power supply was designed.
LIN yi
doaj +2 more sources
A mine-used adaptive power supply with super wide input voltage range
Gong-kuang zidonghua, 2020 For problems of existing mine-used power supply such as inconvenient access, large volume, poor anti-fluctuation ability, complex circuit and high cost, a mine-used adaptive power supply with super wide input voltage range was designed.
LIN Yin, MENG Xiaohong, LIU Yahui
doaj +2 more sources
Design of a high-performance mine-used intrinsically safe power supply
Gong-kuang zidonghua, 2019 For problems of poor electromagnetic immunity and weak load capacity of current intrinsically safe power supply, a high-performance mine-used intrinsically safe power supply was designed.
HUANG Hesong +3 more
doaj +2 more sources
Design of mine-used power supply with super wide input voltage range
Gong-kuang zidonghua, 2016 For problems of existing mine-used flameproof and intrinsically safe type power supply with multiple input voltage level such as large voltage fluctuation, heavy weight and difficult maintenance, a design scheme of mine-used power supply with super wide ...
LIU Yahui
doaj +2 more sources
Gong-kuang zidonghua, 2020 For problems of large output voltage ripple-wave and poor intrinsic safety performance existed in mine-used intrinsic safety type power supply caused by large filtering capacitor of switching converter, a filtering capacitor resolution scheme was ...
CHEN Huili, LI Jie
doaj +2 more sources
Research of Mine-used Digital Three-phase Power Supply
Gong-kuang zidonghua, 2012 For the problem of harmonic pollution of underground power network caused by existing mine-used three-phase power supply, a mine-used digital three-phase power supply based on STM32F103VB was designed and working principle and control strategies of the ...
YANG Jian-kang +2 more
doaj +1 more source