The Influence of Air Gaps At 0.4 Duty Cycle on Magnetic Cere Type 'E' to Increase the Efficiency of Cuk Converter
| Main Author: | Yusuf, Herawati |
|---|---|
| Format: | Article PeerReviewed Book |
| Terbitan: |
, 2013
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| Subjects: | |
| Online Access: |
http://repository.maranatha.edu/3790/1/The%20Influence%20of%20Air%20Gaps%20at%200.4%20Duty%20Cycle%20on%20Magnetic%20Core%20Type%20E.pdf http://repository.maranatha.edu/3790/ |
Daftar Isi:
- Cuk converters are used in various electro-technical applications because it is useful for automatic controller. Recently the controller relies with the conventional Pulse Width Modulation (PWM) which use Insulate Gate Bipolar Transistor (IGBT). IGBT has several advantages such as good voltage regulation; however it needs higher cost and the cuk converter efficiency is not optimum. In this paper, we proposed a Cuk converter with a magnetic core as a replacement of PWM with IGBT. Three magnetic cores type "E" are utilized by inserting air gaps in the feet. The first magnetic core type has an air gap at all feet. The second has an air gap at the left and right feet, where the third type has an air gap at the middle and right feet. In order to optimize the inductance and capacitance quantity of the magnetic core, the air gaps as parasitic effect are used. The air gaps used are varied from 0.075 mm to 2.45 mm. The magnetic core is made from Alnico with duty cycle of 0.4. The result of this research is, the third magnetic core type shows the optimum result, giving flux to 0.0098 Wb and efficiency of 94%. This type is designed with air gap 0f 0.19 mm at the middle feet and 0.254 mm at the left foot.