Results 201 to 210 of about 10,823 (238)
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Power System Transformers and Inductors
1979Modern power supply networks are usually very complex, with many generating stations, often a variety of transmission voltages and a large number of interconnection and distribution points. Quantities of energy transmitted are large, and short-circuit fault levels are high.
R. Feinberg, R. J. Gresley
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Stacked Inductors and Transformers
2003Monolithic inductors have found extensive usage in RF CMOS circuits. Despite their relatively low quality factor, Q, such inductors still prove useful in providing gain with minimal voltage headroom and operating as resonators in oscillators. Monolithic transformers have also appeared in CMOS technology [8], allowing new circuit configurations.
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Capacitor, Inductor, and Transformer
1997From the viewpoint of power handling capability, electronic circuits can roughly be placed into two groups: signal processing circuits and power processing circuits. In general, the power level processed by the signal processing circuits ranges from a fraction of 1 milliwatt to several milliwatts.
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Stacked inductors and transformers in CMOS technology
IEEE Journal of Solid-State Circuits, 2001A modification of stacked spiral inductors increases the self-resonance frequency by 100% with no additional processing steps, yielding values of 5 to 266 nH and self-resonance frequencies of 11.2 to 0.5 GHz. Closed-form expressions predicting the self-resonance frequency with less than 5% error have also been developed.
A. Zolfaghari, A. Chan, B. Razavi
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Flexible On-Chip Inductors and Transformer
Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT), 2010Inductors directly on-chip was designed, processed and tested. Combining thick, electroplated gold used to produce LCD driver ICs plus gold wire bonding, toroidal inductors are formed directly on top of ICs. Both processes are production ready. One layouts inductor line segments on top of ICs and then complete loops using gold wire bonds at packaging ...
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Miniaturized hybrid inductors and transformers
2005In the frame of this thesis, we have developed a novel batch-type technology for the realization of three-dimensional millimeter-size transformers for ultra-small low-power (0.1-1 Watt) applications. The technology is based on the three-dimensional micropatterning of 0.5, 0.75 and 1 mm thick ferrite wafers by powder blasting to form the magnetic cores ...
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Modeling and design of transformers and coupled inductors
Proceedings Eighth Annual Applied Power Electronics Conference and Exposition,, 2002The modeling and design of transformers and coupled inductors are discussed. After a brief review of Maxwell's laws and magnetic circuit models, the magnetic and electric models of transformers and coupled inductors are developed, including both magnetizing and leakage effects.
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Ferrite Transformers and Inductors at High Power
1999In the early days of ferrites, industry employed them at extremely low power levels because the major application at that time was in the telecommunications industry. Since the signal levels were very low, the ferrite core operated in the linear region of the magnetization curve (Rayleigh region) which was characterized by the initial permeability, μo.
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