Development of High Power Piezoelectric Transformers.
نویسندگان
چکیده
منابع مشابه
Piezoelectric transformers for a high power module
Abstract Piezoelectric transformers are mainly commercialized for a LCD back light inverter module. With regard to laptop computers, the required output power for a piezoelectric transformer is around 5 W at present, and higher power will be needed for wider displays in the near future. In addition, modules such as AC-DC adaptors or fluorescent lamps may require a higher output power of more th...
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The increasing utilization of piezoelectric transformers (PT) in power electronics requires fundamental analysis and design of PT power converters. In addition, the possibility of overcoming the essential limitations of PT power ability by a combined operation of PTs needs to be examined. These studies could provide wide opportunities for PT exploitation in power electronic circuits. The main o...
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Piezoelectric transformers (PTs) have been successfully applied as step-up transformers for backlighting Cold Cathode Fluorescent Lamp s (CCFL) used in the liquid crystal displays of notebook computers. In the last decade, the interest in PTs has evolved to a second group of applications. Worldwide companies are now investigating the use of PTs for power applications, including battery chargers...
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Piezoelectric transformers (PTs) are solid-state devices that transform electrical energy into electrical energy by means of a mechanical vibration. These devices are manufactured using piezoelectric materials that are driven at resonance. With appropriate design and circuitry, it is possible to step up and step down the voltages between the input and output sections of the piezoelectric transf...
متن کاملModelling and Analysis of Piezoelectric Transformers
Piezoelectric transformers are well known since the end of the 1950s. One of the most prominent applications today is in the backlighting of LCD displays. Key features of piezoelectric transformers, such as light-weight, flatness, high step-up at low volume and high efficiency, make them attractive for a broad range of applications. The present paper first explains the operating principle of pi...
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ژورنال
عنوان ژورنال: Journal of the Japan Society of Powder and Powder Metallurgy
سال: 2002
ISSN: 0532-8799,1880-9014
DOI: 10.2497/jjspm.49.211