TDK EE320x250x20 Saturation Magnetic Flux, Frequency Characteristics, Dimensional Resonance

Page 5

SATURATION MAGNETIC FLUX

DENSITY vs. TEMPERATURE

CHARACTERISTICS

 

700

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

600

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

500

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

400

 

 

 

 

 

 

 

 

 

 

 

PE22

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

)

 

 

 

 

 

 

 

PC40

 

 

 

 

 

mT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bs

300

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

200

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

100

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

00

 

 

 

 

 

 

 

 

 

 

 

 

 

 

50

100

 

 

 

 

 

 

Temperature(˚C)

AMPLITUDE PERMEABILITY vs.

SATURATION MAGNETIC FLUX

DENSITY CHARACTERISTICS

 

 

5000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

120˚C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

100˚C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

a

 

 

80˚C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

60˚C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

40˚C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

23˚C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Material: PE22

 

 

150

20000

 

 

 

 

 

 

 

 

 

 

 

 

f=16kHz

 

 

 

 

 

 

100

200

 

 

300

Flux density(mT)

(5/6)

MAGNETIC PERMEABILITY vs.

FREQUENCY CHARACTERISTICS

3000 Material: PE22

Temp.: 23˚C

2000

∝′

∝′, ∝′′

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1000

 

 

 

 

∝′′

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0101

 

 

 

 

 

 

 

102

103

104

 

 

Frequency(kHz)

 

 

 

 

 

 

INITIAL MAGNETIC PERMEABILITY vs.

TEMPERATURE CHARACTERISTICS

i

6000

5000

4000

3000

2000

1000

00

PC40

PE22

f=1kHz

Hm=0.4A/m

100200

Temperature(˚C)

 

5000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4000

 

120˚C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

100˚C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

80˚C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

a

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

60˚C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3000

 

 

40˚C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

23˚C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Material: PC40

 

 

300

 

 

 

 

 

 

 

 

 

 

 

 

 

f=16kHz

 

 

 

 

20000

100

200

 

 

300

Flux density(mT)

3000 Material: PC40

Temp.: 23˚C

∝′

2000

∝′, ∝′′

1000

 

 

 

∝′′

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0101

 

 

 

 

 

 

 

102

103

104

 

 

Frequency(kHz)

 

 

 

 

 

 

DIMENSIONAL RESONANCE

Dimensional resonance is a phenomenon which increases loss and decreases magnetic permeability by electromagnetic standing waves when the magnetic field of the core frequency is applied. The phenomenon appears when the maximum dimension of the cross section of the core perpendicular to the magnetic field is the integral multiple of about half of the electromagnetic wavelength λ.

λ= C

f × µ r × εr

C: Electromagnetic wave speed in a vacuum(3.0108m/s)

r: Relative magnetic permeability

εr: Relative permissivity

f:Frequency of the applied magnetic field(electromagnetic wave) As e decreases by inserting into the gap, using the same core

enables high frequency wave usage as indicated by the formula above.

As dimensional resonance quickly decreases magnetic permeabil- ity, design the actual frequency to avoid dimensional resonance. In the case of possible dimensional resonance, it can be protected against by dividing the core in the magnetic circuit direction and bonding them.

RESONANCE DIMENSION vs. FREQUENCY

CHARACTERISTICS

103

)

 

 

 

 

 

 

 

 

 

 

 

mm

 

 

 

 

 

 

 

 

 

 

 

 

 

PE22

 

 

 

(

 

 

 

 

 

 

 

 

 

 

 

dimensionResonant

 

 

 

 

 

 

 

 

 

 

 

 

 

PC40

 

 

 

 

 

 

 

 

 

 

 

 

 

 

102

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

101

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

102

103

 

101

Frequency(kHz)

• All specifications are subject to change without notice.

002-01 / 20071116 / e16_1

Image 5
Contents Applications Large Size Ferrite Cores for High Power SummaryFeatures MATERIALPE22 MATERIALPC40 Saturation Magnetic Flux Density Characteristics CharacteristicsFrequency Characteristics Temperature CharacteristicsGeneral Precautions When Using Ferrite Core

EE320x250x20 specifications

The TDK EE320x250x20 is a state-of-the-art electromagnetic component widely recognized for its high reliability and performance in various applications. This product is part of TDK's extensive range of EE cores, which are designed specifically for power transformers, inductors, and energy storage devices. With dimensions of 320mm x 250mm x 20mm, this component provides a robust solution for demanding electrical environments.

One of the main features of the EE320x250x20 is its exceptional magnetic permeability. This characteristic allows it to efficiently transfer magnetic fields, making it ideal for applications where power loss needs to be minimized. The design incorporates advanced magnetic materials, which offer a combination of high saturation flux density and low core losses. This results in enhanced energy efficiency, particularly significant in compact, high-performance power supplies.

The EE320x250x20 utilizes innovative technologies that contribute to its superior performance. TDK's proprietary core materials are engineered to minimize eddy current losses, which is crucial for maintaining optimal thermal management in electronic systems. This facet is essential in high-frequency applications, where traditional core materials may exhibit significant losses due to overheating. Consequently, the EE320x250x20 allows for a more stable operation in conditions where thermal control is critical.

In terms of characteristics, the EE320x250x20 boasts a standardized design that ensures compatibility with various windings and assembly processes. This feature simplifies the integration into existing systems, facilitating ease of use for manufacturers and engineers alike. Additionally, the component is available in various versions to suit specific voltage and current requirements, which further enhances its versatility across different fields, including automotive, telecommunications, and renewable energy systems.

Furthermore, the EE320x250x20 core exhibits a robust construction, providing exceptional mechanical strength. This durability not only extends the component's lifespan but also ensures reliable operation even in challenging environments. TDK's commitment to quality assurance means that each core undergoes rigorous testing to meet international standards, reinforcing the product’s reputation as a dependable choice for professionals in the industry.

In conclusion, the TDK EE320x250x20 is an exemplary magnetic core that combines advanced technology, outstanding efficiency, and robust construction. Its design caters to the growing demands of modern electronic applications, making it an indispensable component for engineers and designers aiming for optimal performance in their products.