Synchronous rectification for contactless power supply utilizing Mn–Zn ferrite core coils

2005 ◽  
Vol 97 (10) ◽  
pp. 10Q702 ◽  
Author(s):  
Hidekazu Miura ◽  
Shinsuke Arai ◽  
Fumihiro Sato ◽  
Hidetoshi Matsuki ◽  
Tadakuni Sato
Keyword(s):  
Power Supply ◽  
Ferrite Core ◽  
Zn Ferrite ◽  
Synchronous Rectification

scholarly journals A Study of Zn-Ferrite Core Planar Power Inductor Embedded in Organic Interposer for Power Supply integrated in LSI Package

2013 ◽  
Vol 37 (4) ◽  
pp. 314-319 ◽  
Author(s):  
H. Kobayashi ◽  
F. Sato ◽  
K. Hagita ◽  
R. Takeda ◽  
M. Sonehara ◽  
...  
Keyword(s):  
Power Supply ◽  
Ferrite Core ◽  
Zn Ferrite ◽  
Power Inductor

Magnetic motion capture system using LC resonant magnetic marker composed of Ni–Zn ferrite core

2006 ◽  
Vol 99 (8) ◽  
pp. 08B312 ◽  
Author(s):  
S. Hashi ◽  
M. Toyoda ◽  
M. Ohya ◽  
Y. Okazaki ◽  
S. Yabukami ◽  
...  
Keyword(s):  
Motion Capture ◽  
Motion Capture System ◽  
Ferrite Core ◽  
Zn Ferrite ◽  
Magnetic Marker

scholarly journals Corroboration and efficacy of Magneto-Fluorescent (NiZnFe/CdS) Nanostructures Prepared using Differently Processed Core

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Dipti Rawat ◽  
P. B. Barman ◽  
Ragini Raj Singh
Keyword(s):  
Exchange Bias ◽  
Core Shell ◽  
Ferrite Core ◽  
The Core ◽  
Shell Nanostructures ◽  
Zn Ferrite ◽  
Different Temperatures ◽  
Cds Nanostructures ◽  
Multifunctional Nanostructures ◽  
The Comparative Study

Abstract The selected and controlled preparation of core@shell nanostructures, which unite the multiple functions of ferromagnetic Ni-Zn ferrite core and CdS shell in a single material with tuneable fluorescence and magnetic properties, have been proposed by the seed mediated aqueous growth process. The shell particle thickness and core of nanostructures were precisely tuned. Current work exhibits the comparative study of core@shell multifunctional nanostructures where core being annealed at two different temperatures. The core@shell nanostructure formation was confirmed by complementary structural, elemental, optical, magnetic and IR measurements. Optical and magnetic characterizations were performed to study elaborative effects of different structural combinations of core@shell nanostructures to achieve best configuration with high-luminescence and magnetic outcomes. The interface of magnetic/nonmagnetic NiZnFe2O4/CdS nanostructures was inspected. Unexpectedly, in some of the core@shell nanostructures presence of substantial exchange-bias was observed in spite of the non-magnetic nature of CdS QDs which is clearly an “optically-active” and “magnetically-inactive” material. Presence of “exchange-bias” was confirmed by the change in “magnetic-anisotropy” as well as shift in susceptibility derivative. Finally, successful formulation of stable and efficient core@shell nanostructures achieved, which shows no exchange-bias and shift. Current findings suggest that these magneto-fluorescent nanostructures can be used in spintronics; and drug delivery-diagnosis-imaging applications in nanomedicine field.

scholarly journals Adapter-Transceiver for HF Equipment PLC Technology

2020 ◽  
Vol 20 (3) ◽  
pp. 97-109
Keyword(s):  
High Voltage ◽  
Power Supply ◽  
Low Voltage ◽  
Radio Channel ◽  
Power Line ◽  
Ferrite Core ◽  
Information Signal ◽  
Fire Alarm System ◽  
Low Voltage Circuits ◽  
Easy Integration

The paper analyses the features of PLC technologies and describes the circuitry solutions for HF equipment adapters used and their operation modes. It also proposes a new type of transceiver adapters based on a new construction principle that implements a magnetoelectric effect in the structure of a composite. One of the main components of the proposed adapters, which actually translates the HF information signal into the phase wires of the power line, is a ferrite core. The physical effects underlying the operation of the proposed transceiver adapter are analyzed. The main distinguishing feature of the proposed adapter is the absence of transformer and galvanic connections between the high-voltage power line of the power supply network and low-voltage information circuits, which ensures that the effect of the operational high voltage of the power supply line on the low-voltage circuits of HF equipment is blocked. This allows for an easy integration of the proposed version of the adapter-transceiver into standard HF equipment for PLC technologies, boosting the level of its function. The developed new types of adapter-transmitter and adapter-receiver were experimentally tested as part of an experimental fire alarm system, which uses two types of transmission channels: based on wireless technologies employing a radio channel and a PLC technologies-based one.

Spiral-type transmission line with an Mn-Zn ferrite core

2003 ◽  
Vol 39 (5) ◽  
pp. 3205-3207 ◽  
Author(s):  
T. Sato ◽  
K. Sato ◽  
K. Yamasawa ◽  
Fuchun Zhang ◽  
K. Yanagisawa
Keyword(s):  
Transmission Line ◽  
Ferrite Core ◽  
Zn Ferrite ◽  
Spiral Type

Planar Power Inductor with Magnetic Film for Embedded LSI Package

2012 ◽  
Vol 2012 (1) ◽  
pp. 000464-000472
Author(s):  
Tomoharu Fujii ◽  
Kazutaka Kobayashi ◽  
Hiroshi Shimizu ◽  
Shinji Nakazawa ◽  
Toshiro Sato ◽  
...  
Keyword(s):  
Power Supply ◽  
Low Voltage ◽  
Magnetic Core ◽  
Power Delivery ◽  
Ferrite Film ◽  
Spiral Coil ◽  
Zn Ferrite ◽  
Embedded Application ◽  
Power Inductors ◽  
Power Inductor

A power inductor component is relatively very thick and large shape. Therefore, these components are not appropriate feature to be embedded into a LSI package and mounted nearby a LSI chip, it is challengeable to make the embedded application. However, LSI power delivery system is going for low voltage and large current, and losses between power supply and loads impacts on the power supply efficiency characteristic. In order to solve this problem, miniaturization for a power inductor is needed to realize the embedded applications. As one of approaches to realize the power delivery systems, the planar power inductor with Zn-Ferrite film has been studied for the next generations. A structure of planar power inductor was designed to be configured 2-turn inner copper spiral coil covered with top and bottom magnetic core. The Zn-Ferrite film used as a magnetic core has a high resonance frequency around 300MHz and high saturation magnetization of 0.6T or more, and this film can be formed in low temperature, which can be handled in parallel way to fabricate an organic package. We have developed the organic package with employing the power inductors covered with Zn-Ferrite as prototype of the embedded application, and evaluated the electrical and magnetic characterizations. The thickness of embedded planar power inductor covered with Zn-ferrite film is 50um, and the size is 850um squares. Q factor is 10 to 13 in 30MHz to 100MHz. The degradation of inductance caused by the superimposed current does not happen without changing until 3A.

Sign in / Sign up

Export Citation Format

Share Document