Efficient, versatile, high power inductors with 3P1

EFFICIENT, VERSATILE,
HIGH POWER INDUCTORS
WITH 3P1
A new solution
for high power
inductors
FERROXCUBE moves forward along
with the technology and expands its
range of products with 3P1 set of
cores for inductors in high power
conversion systems. A true alternative
to laminated steel and metal alloys.
Thanks to its very high saturation level
(1.5T) and low power losses, 3P1 is
perfectly suited for applications where
high energy storage capability and
efficiency are necessary. These features
allow for a smaller core size, hence
lower cost and lighter solution than
using ferrites for the same function.
Industrial:
• Photovoltaic inverters
3P1 applications as
boost and output
choke in power
conversion systems
include fields like:
Automotive:
• Wind mill inverters
• HEV and EV inverter
• Welding power supplies
• EV fast charger
• General purpose inverters
• Uninterruptible Power Supplies
• Power Factor Corrector
Product range
Bricks
Shape
Product reference
Length Width Height
BRK50/30/x-3P1M080
50.5
BRK60/30/x-3P1M080
60
BRK70/30/x-3P1M080
70.5
BRK80/30/x-3P1M080
80.5
BRK120/30/x-3P1M080
120.5
Product reference
Diameter
30
Adjustable (max 30)
Shape
Material specifications
Height
SYMBOL
CONDITIONS
3P1
μ
25 °C; 10 kHz;
0.25 mT
80
μa
25 ºC, 10 kHz,
100 mT
85
Bsat
25 °C; 10 kHz
1.5
T
Pv
25 °C; 10 kHz;
100 mT
90
kW/m³
ρ
DC, 25 °C
>1
Ω∙m
Tc
> 700
°C
density
6300
kg/m³
Cylinder
ROD25/x-3P1M080
25
(max 25)
All the dimensions are in mm
If this is not enough…
UNIT
The core loss formula
an approximation of t
power losses as a func
of frequency (f) and f
density (B)
P = 926.1∙B(T)2.05∙ f(kH
We are permanently developing new products. Lower material
permeabilities are on the way. Other shapes like toroids, or
customized cores can be made upon request. Ask Ferroxcube’s
team for support and optimize your inductor design.
When designing an inductor for
power conversion applications (such
an inverter, or any other function), the
choice of the material and the core
size is dependent on several factors
like: power requirements, circuit
configuration, switching frequency,
required efficiency, size constraints and
cost.
• wide range of sizes (blocks up to
30mm in thickness),
• lower losses than traditional iron
powder cores at the typical
working frequencies (few kHz)
• absence of organic binder after the
annealing process, therefore no
thermal aging is possible.
New FERROXCUBE 3P1 range keeps
all the advantages of conventional
iron powder over other alternatives:
• high energy storage at low volume,
• moderate cost tooling,
• inexpensive raw material,
while providing:
3P1 range strengths for inductors’ design
High energy
storage capacity
Efficiency
Power losses are optimal at
typical switching frequencies
of few kHz, therefore high
efficiency may be achievable
from the magnetics point of
view
1.5T saturation allows for
handling high currents
present in boost inductors
and output chokes
3P1 low permeability is very
stable over temperature and
with DC field. Inductance
values will be under control
regardless of the circuit
conditions
The type and variety of the
shapes length and thickness
which are available makes it
possible to adapt the inductor to
the design constraints in order
to achieve optimal performance
and ease of windings
Loss factor as a function of frequency
16 kHz
10 kHz
1000
100
tgδ/µ x 106
Pv (mw/cc)
Flexibility
50 kHz
32 kHz
20 kHz
3P1 Power losses vs peak flux density
a gives
he
ction
flux
Stability
10
1
0.1
B(T)
1000
900
800
700
600
500
400
300
200
100
0
10
[mW/cc]
Complex permeability as a
function of frequency
1000
Percent change of permeability
with DC current
μ’
μ’’
140
120
100
80
60
40
20
0
10
100
Freq (kHz)
% Permeability
Hz)
Permeability
1.15
Freq (kHz)
100
1000
100
90
80
70
60
50
40
30
20
10
0
100
1000
H (A/m)
10000
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Printed in Spain
9930 030 00171
Date of Release: May 2012