17 core types used for high frequency transformer
There are many types of high-frequency transformer cores. Below are 17 core types that are most commonly used in high-frequency transformers,I hope that this information will be helpful.
1. EE,EF core
Advantage:
EE/EF core has wide range of uses, varieties,lead space, winding wiring convenient.
Applications:
High frequency switching power transformers, Matching transformer, Filter transformer, Pulse transformer etc.
2. EI core
Advantage:
El core has compact structure small size high frequency wide operating voltage range the air gap in the top of the coil coupling tight low loss.
Applications:
Power Conversion Transformers and choke coils, Planar transformers, DVD Power supplies Camera flash,Communication equipment etc.
3. EFD core
Advantage:
EFD core has a small thermalresistance, attenuation, power,operating frequency wide stool use advantages
Applications:
Monitor backlight power supply, LED power, precision instruments power modules etc.
4. EPC core
Advantage:
EPC core has small thermal resistance low attenuation and high power
Applications:
Frequency swiching power transformer, rectifier transformer, computers, tele-communication equipment, TV, VTR, audio set etc.
5. ER,ETD core
Advantage:
ETD and ER core coupling position is good,center column, it’s circular easy to Ivinding and increase winding areas.
Applications:
Electronic ballasts, Switching power transformers, Pulse transformers, Switching power transformers, Power Conversion Transformer etc.
6. EP core
Advantage:
EP core has good magnetic shielding, small distributed capacitance, low transmission loss. Bobbin equipped multiple connectors, easy to design multiple output transformers.
Applications:
Broadband transformers,isolation transformers, matching transformers program-controlled switchboard terminals and sophisticated electronic equipment.
7. RM core
Advantage:
RM core has good magnetic shielding effect, strong anti-interference ability, multi-pin with bobbin, multi-output transformer can be designed for high density installation.
Applications:
High-frequency switching power transformers，Filter common mode transformers，Line transformers, liner filters etc.
8. PQ core
Advantage:
Effectively reduce the installation volume and easy wiring around.
Applications:
Rectifier, linear filter,choke,pulse transformer,drive transformer etc.
9. POT core
Advantage:
POT Core has small size, high inductance,easy winding,high inductance per unit space, magnetic shielding and cooling effect of a balanced.
Applications:
High Sensitivity,Efficiency Sensor,Power Conversion Transformer,High frequency switching transformers etc.
10. CUT core
Advantage:
CUT core has small size, high inductance, easy winding, high inductance per unit space, magnetic shielding.
Applications:
Switching Power Transformer, Carrier Filter, Reactors, Current transformer, High Efficiency Sensor, Power conversion transformer etc.
11. UU core
Advantage:
UU core has small impedance deviation big output current, high inductance.
Applications:
Used in filter common mode transformer, Color TV sets, Inverter welding machine, Plating Power Supply, Computers etc.
12. UI core
Advantage:
Ul core has wide distributing permeability
Applications:
Filter common mode transformers,Color TV sets, Inverter welding machine, Plating Power Supply, Computers, monitors etc.
13. ET core
Advantage:
High efficiency, low leakage
Applications:
HDTV, DVD, PC, tele-communication equipment,switch transformers, FBT pulse transformers, driving transformers and electronic inductor etc.
14. Torodial core
Advantage:
Low noise, low magnetizing current.
Applications:
High frequency switching power transformers，Coupled inductors and transformers, EC power, RF circuits, chokes, filter transformer, toroidal inductors etc.
15. UR core
Advantage:
The round leg allows easy winding and also of strip conductors.
Applications:
Industrial, Power Management, Consumer Electronics etc.
16. DR core
Advantage:
high inductance per unit space, magnetic shielding
Applications:
Filter inductor,DC-DC Converter, choke coils,Lighting and Car Electronics, Computer,PDA and other electronic devices,etc.
17. PM core
Advantage:
PM core has wide frequency range, its low insertloss ferrite cores.
Applications:
High Sensitivity Sensor, High Efficiency Sensor, Power Conversion Transformer, High-frequency switching power transformers etc.
