Efficiency: Updating capabilities, improving
capacity, reducing costs
If I were to tell you that there was a way to reduce
costs, electrical efficiency capabilities, and
enhance electrical capacity through a product
you needed – would you buy it? Of course you
would! Smaller, faster, cheaper – the name of
today's engineering game.
Planar transformers are steadily replacing the
need for traditional wire-wound transformers in
many industries. Electric vehicles, solar inverters,
wind power, telecommunications, mil-aero,
aviation, healthcare, industrial applications,
tools, LED lighting, induction heating/charging,
appliances, electronics (TV's, radios, etc.), and
many others. Core materials, their shapes, and
manufacturing techniques are all developments
Standex-Meder have been in tune with to deliver
to various requirements.
With the ever increasing need to be faster,
perform with greater accuracy, improve time to
market, and reduce costs – planar transformers
replace the traditional wire wound transformers
with a solution that makes perfect sense for a
successful blueprint.
Why Standex-Meder Planar Transformers?
- Repeatability, high-performance and reliability
- Multiple winding options and topologies
- Low profile height and lightweight
- Low leakage inductance
- Space savings and capacity improvement (retro/custom fits)
- High efficiency (resistance, flux density)
- Customized terminations
- Volumetric efficiency (small size)
- High voltage isolation transformers
- Low turns count improves Cu loss
- Large core surface promotes heat transfer
- PCB construction yields lowest Cu loss
- AC resistance and proximity Cu loss minimized
- Opportunity to embed planar into PCB
module (integrated magnetics)
- Optimized core cross section lowers core
loss
For a switched-mode power supply (SMPS), our
planar transformers act as the main component
and the smart choice for converting power and
doing the transformation of the voltage effectively.
Smaller volume planars can handle the same
amount of work as larger wire-wound transformers.
General guide on how to design and
use planar transformers
- Choose optimum core cross section
- Choose optimum core window height
- Iterate turns vs. duty cycle
- Core loss
- Cu loss
- ate thermal methods
- Estimate temperature rise
- Tradeoff cost vs. number of layers
- Mechanical design fit envelope pad layout
- Fit within core window height
- Size sufficient for power loss and thermal
solution
Example where planar transformers
reside
- Distributed isolated power
- Battery charging and operation (12V, 24V, 48V, and 1-10KW)
- Isolated inverters (to 50KW)
- Renewable energy sources (wind and photovoltaic)
- AC-DC resonant designs
Industry applications
Automotive, Aviation, Military, Medical, Telecommunications,
Electronics, Industrial, Power,
Appliances, Transportation, Alternative/Solar
Energy, Lighting/LED, and others where planar
transformers provide efficient power distribution
and high frequency switching.
