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Lodestone Pacific - Mounting Solutions
Toroid Mounts, Components Headers, Shielded Coil
Forms, and Anti-static Parts Trays.
Catalog Toroid Mount & Headers, Issue "G" (PDF version 1.8Mb)
Catalog Shielded CoilForms (HTML version)
Shielded Coil Forms Article
Cost of Quality Article
Solderability Value Chain (HTML version)
Transformer Bobbin and Core Selection Involves Interdisciplinary Design and Cost Issues
PDF Version (52Kb)
Effective Mounting of Toroidal Magnetics Requires Packaging and Production
Considerations (HTML version)
Magnetics
Inc. -
Ferrite Cores
Ferrite Cores Design
Manual and Catalog
Part Number and Ordering
Information (74 Kb)
Material
Information (Section 2) (493 Kb)
Design
Application Notes (Sections 4-5, 14) (2.29 Mb)
Pot,
RS, DS Cores and Accessories (Sections 6-7) (1.3 Mb)
RM
Cores and Accessories (Section 8) (543 Kb)
EP
Cores and Accessories (Section 9) (154 Kb)
PQ
Cores and Accessories (Section 10) (231 Kb)
E,
I, EEM, EFD Cores (Section 11) (PDF, 758 Kb)
Planar
E Cores (Section 11) (PDF, 91 Kb)
U, I
Cores (Section 11) (PDF, 78 Kb)
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EC,
ETD, ER, EER Cores and Accessories (Section
12) (256 Kb)
Toroid
Cores (Section 13) (517 Kb)
Technical
Information
Ferrite
Material Selection Guide (PDF, 221 Kb)
EMI/RFI
Common Mode Filters (PDF, 325 Kb)
Q
Curves for Ferrite Cores (PDF, 1.98 Mb)
Step
Gap "E" Core Swing Chokes (PDF, 115 Kb)
Common
Mode Inductors for EMI (PDF, 125 Kb)
Curve
Fit Equations for Ferrite Materials (PDF, 284Kb)
Designing
with Planar Ferrite Cores (PDF, 271 Kb)
A
Critical Comparison of Ferrites with Other
Magnetic Materials (PDF, 436 Kb)
Common
Mode Filter Inductor Design Software (ZIP, 1.17 Mb)
MAGNETICS
Clip Art Diskette (ZIP, 155 Kb)
Micrometals
- Iron Powder Cores
Power
Conversion Catalog
RF
Catalog
General
Notes:
Design
Guidelines for Iron Powder Cores
By
Dale Nichols, Micrometals Inc.
Practical
Construction Tips for Coils Using Iron Powder
Cores
By
Dale Nicol, Micrometals, Inc.
Fair-Rite
Product - Ferrite Cores
Fair-Rite Catalog 14th Edition (8.1Mb)
SM Multi-layer Chip Inductors (260Kb)
P.Leo
LTD - Electrical/Transformer Tape
Literature coming soon
Power
Conversion Notes:
An
Objective Comparison of Powder Core Materials
for Inductive Components with Selected Design
Examples
By
Dale Nicol, Micrometals, Inc.
Inductor
Designs for High Frequencies - Powder Iron
"Flux Paths" Can Eliminate Eddy Current
(Gap Effect) Winding Losses
By
Bruce Carsten, Carsten Associates Inc.
Calculating
the High Frequency Resistance of Single and Double
Layer Toroidal Winding
By
Bruce Carsten, Carsten Associates Inc.
Simplified Calculations of Magnetic and Electrical
Losses
in Unity Power Factor Boost Pre-regulators.
By
Bruce Carsten, Carsten Associates Inc.
Iron
Powder Cores for Switch mode
Power Supply Inductors
By:
Jim Cox - Micrometals, Inc.
The
purpose of this application note is to cover the
properties of iron powder as amagnetic
core material for inductors in switch-mode power
supplies. The different considerations
for DC output chokes, differential-mode line
filter inductors, power factor correction
inductors, and high frequency resonant inductors
will be covered.
RF
Applications:
Iron
Powder Cores for High Q Inductors
By:
Jim Cox - Micrometals, Inc.
A
brief overview will be given of the development of
carbonyl iron powders. We will
show how the magnetic properties of the iron
affect inductor performance and will show, through
example, how the physical size of a core along
with its winding details interact to affect Q Vs
frequency characteristics.
Iron
Powder Core Selection For RF
Power Applications
By
Jim Cox Micrometals, Inc.
The
purpose of this article is to present new
information that will allow the RF design engineer
to select the proper iron powder core for
inductors and transformers Handling power in the 250 kHz
to 5 MHz frequency range.
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