THE ADVANTAGES AND BENEFITS OF USING AMVECO TOROIDAL TRANSFORMERS
On this page you can learn about the advantages and benefits of using our toroidal
transformers. First we would like to list four features that are unique to AMVECO and
its line of toroidal transformers. Four features that you will surely benefit from.
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AMVECO is an ISO 9001 registered company
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AMVECO’s transformers use only flameretardent material (UL 94-V2)
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AMVECO offers lifetime warranty for its products
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AMVECO’s transformers are recognized to several UL standards and
certified by CSA as well as TUV for medical applications.
High Performance Products For Your High Performance Applications.
SMALL SIZE
Most toroids are smaller than their E-I transformer counter-
parts. Electrical and mechanical designers appreciate a
toroid’s compact dimensions. They are particularly well suited where
low height is a consideration.
LOW STRAY MAGNETIC FIELD
Toroids have no airgaps: primaries and secondaries are wound
uniformly around the entire core. As a result, toroids emit very
low radiated magnetic fields. This makes the toroid ideal for applications
involving high sensitivity circuitry.
LOW MECHANICAL HUM
The core of a toroid is formed from a single strip of grain-ori-
ented electrical grade silicon steel tightly wound in the form
of a clock spring with the ends spot-welded in place. The copper
wire is wound over polyester film, forming a silent, stable unit without
the use of environmentally unfriendly glues or varnishes.
FLEXIBLE DIMENSIONS
Compounding the benefits of low weight and small size is the
flexibility to vary dimensions. Because AMVECO is not tied
down to core caps or lamination sizes, the height and diameter
of our toroids may be economically varied to accommodate equipment
design requirements.
LOW WEIGHT
Because they are more efficient, toroids can be up to 50%
lighter, (depending on power rating), than conventional lami-
nated transformers. Low weight simplifies end product design by reduc-
ing mounting hardware and supporting enclosure requirements.
LOW NO-LOAD LOSSES
Compared to conventional E-I transformers, toroids exhibit
extremely low no-load losses. In applications where a circuit is
in a “stand-by” mode for long periods, the potential cost reduction for
power can be significant, sometimes 80-90% lower.
HIGH EFFICIENCY
Due to its unique construction, toroids are typically between
15 and 30% more efficient than the conventional type. As a
rule; the larger the transformer - the more efficient it becomes.
LOW OPERATING TEMPERATURE
Since most of the losses in a toroid are in the copperwire, the
toroid cools off quicker than the conventional E-I type with
more iron. At half the load, the toroid’s temperature rise is only
about 30% of what it is at full load.
EASY TO MOUNT
A single center screw easily and quickly mounts the toroid,
avoiding costly mechanical design and practical problems associ-
ated with conventional E-I-laminated transformers..., and three screws are
eliminated at assembly!
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AMVECO Magnetics, Inc. • 10401 Westoffice Dr. • Houston, TX 77042 • (800) 527-7042 • (713) 977-2500 • Fax: (713) 977-5031 • Email: sales@amveco.com • www.amveco.com
TABLE OF CONTENTS
Features, Advantages and Benefits
of Toroidal Power Transformers
Serving A Broad Range Of Industries
Value Added Assembly Service
Engineering Support
Interactive Website Design Service
Documented Reliability
(ISO 9001 And Safety Standards)
AMVECO Construction Data
Technical Data And Application Notes
Reference Guide For Size And Losses
Customer Specification Sheet
Toroidal Mounting Methods
Considerations When Using
Toroidal Power Transformers
Standard Design Transformers
For 117V/60Hz Applications
Standard Design Transformers
For 2x117V/50-60Hz Applications
Standard Design Medical Grade
High Isolation Transformers
Custom Designed Auto-Transformers
And Three-Phase Transformers
Current Sensing Transformers
Low Profile PC Mount Transformers
Low Profile Miniature Transformers
AMVECO Standard Series Inductors
Copy of AMVECO’s ISO 9001 Certificate
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AMVECO Magnetics, Inc. • 10401 Westoffice Dr. • Houston, TX 77042 • (800) 527-7042 • (713) 977-2500 • Fax: (713) 977-5031 • Email: sales@amveco.com • www.amveco.com
SERVING A BROAD RANGE OF INDUSTRIES
THE SUPERIOR/COST-EFFECTIVE TOROID
AMVECO’s state-of-the-art manufacturing processes have made the use
of toroids cost-effective across a broad spectrum of applications.
Toroids are routinely replacing laminated frame types in the most
demanding industry applications, including: medical, telecommunica-
tions, instrumentation, test equipment, lighting and signs, process
control, office and computer peripherals, audio and broadcast, as well
as many others.
HIGHER LEVEL ASSEMBLY
AMVECO’s higher level assembly services deliver products one step
closer to production. This approach can save you time and money while
AMVECO’s in-house tooling and testing capabilities ensure prompt deliv-
ery of high quality products ready for your final assembly.
COMPLIMENTARY PRODUCTS
AMVECO also designs and produces standard and custom inductors,
current transformers and auto transformers. All custom components are
designed and manufactured to meet customer specifications and are also
subjected to the same demanding manufacturing standards used in the
production of our toroidal transformers. These complimentary products
have been developed, and will continue to be developed, in response to
your needs.
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AMVECO Magnetics, Inc. • 10401 Westoffice Dr. • Houston, TX 77042 • (800) 527-7042 • (713) 977-2500 • Fax: (713) 977-5031 • Email: sales@amveco.com • www.amveco.com
DEDICATED ENGINEERING SUPPORT
WE ARE HERE TO SERVE YOU
Our engineers want to be part of your power supply design group. We’ll
show you how you can optimize your product’s appearance and perfor-
mance and reduce total cost.
Since most of our products are custom designed, our work begins with a
customer inquiry. Together with a customer’s engineers, we determine
the AC line, AC or DC load requirements and other user-specific condi-
tions. With state-of-the-art proprietary CAD programs, our engineers
quickly generate preliminary designs. Often in a matter of hours, if
needed.
Our tested and proven in-house software programs enable us to simulate
optimum performance characteristics from your data. All of our design
proposals are accompanied by a price quotation. You can then order a
prototype for your evaluation, or select from our extensive inventory of
standard toroids. You incur no expense until you place an order.
AMVECO can respond quickly and effectively to meet your needs because
we have experienced people to assist you at every step, from the factory
to the field. Expert application and product engineers can work with you
from initial development through final delivery. Our knowledgeable cus-
tomer service personnel utilize fully computerized processing systems for
prompt, reliable service. Our representative organizations are strategically
located to meet your needs nationwide.
WEB SITE DESIGN SERVICE
To evaluate the feasibility of toroidal power transformers for specific appli-
cations, AMVECO has established an interactive web site. You need only
type in user-specific transformer modeling data. The interactive program
will respond with specific toroid possibilities and prompt you on how to
obtain your AMVECO transformer. Our engineers will be glad to validate
your design.
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AMVECO Magnetics, Inc. • 10401 Westoffice Dr. • Houston, TX 77042 • (800) 527-7042 • (713) 977-2500 • Fax: (713) 977-5031 • Email: sales@amveco.com • www.amveco.com
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