3P1 Datasheet, PDF (3/4 Pages) Ferroxcube International Holding B.V. – EFFICIENT, VERSATILE, HIGH POWER INDUCTORS WITH 3P1

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.
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:
• 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.
3P1 range strengths for inductors’ design
Efficiency
Power losses are optimal at
typical switching frequencies
of few kHz, therefore high
efficiency may be achievable
from the magnetics point of
view
High energy
storage capacity
1.5T saturation allows for
handling high currents
present in boost inductors
and output chokes
Stability
Flexibility
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
50 kHz
3P1 Power losses vs peak flux density
32 kHz
20 kHz
Loss factor as a function of frequency
16 kHz
1000
10 kHz
1000
900
100
800
a gives
he
10
ction
flux
1
B(T)
0.1
700
600
500
400
300
200
100
0
10
100
1000
Hz)^1.15 [mW/cc]
Freq (kHz)
Complex permeability as a
function of frequency
μ’
Percent change of permeability
μ’’
with DC current
140
120
100
80
60
40
20
0
10
Freq (kHz)
100
1000
100
90
80
70
60
50
40
30
20
10
0
100
1000
H (A/m)
10000