High precision AC/AC power supply unit based on DSP controlled PWM inverter

2003 ◽  
Author(s):  
T. Adam ◽  
I. Ajtonyi ◽  
F. Toth
Keyword(s):  
High Precision ◽  
Power Supply ◽  
Power Supply Unit ◽  
Pwm Inverter ◽  
Ac Power

Síntesis sencilla de óxido de tungsteno(VI) a partir del filamento de un foco

2011 ◽  
Vol 19 (4) ◽  
pp. 341
Author(s):  
Joel Díaz Reyes ◽  
Aarón Pérez-Benítez ◽  
Valentín Dorantes
Keyword(s):  
Infrared Spectroscopy ◽  
High Temperatures ◽  
Power Supply ◽  
Light Bulb ◽  
Electrochromic Devices ◽  
Tungsten Filament ◽  
Tungsten Oxides ◽  
Ac Power

<span>Tungsten(VI) oxide can be easily synthesized starting from a standard light bulb. The reaction consists in the oxidation at high temperatures (T ≈ 2000 – 3000° C) of a tungsten filament in presence of air; conditions which can be easily achieved by connecting a broken light bulb (but with its intact filament) to an AC-power supply of 110 volts. The vapor of WO3 is condensed into a beaker in a quantity enough to be characterized by infrared spectroscopy. The experiment is very funny, inexpensive and allows to the teacher to link several topics in current chemistry and physics of the tungsten oxides, such as their nomenclature and technological applications (i.e. electrochromic devices, gasochromic sensors, superalloys or as it is used in home: As a “simple” emisor of light!).</span>

scholarly journals A compact tube-in-tube microsized lithium-ion battery as an independent microelectric power supply unit

2021 ◽  
pp. 100429
Author(s):  
Qunhong Weng ◽  
Sitao Wang ◽  
Lixiang Liu ◽  
Xueyi Lu ◽  
Minshen Zhu ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
Power Supply ◽  
Lithium Ion ◽  
Power Supply Unit
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