Transformer and Resonance Converter LLC, which has the same product.

Abstract

------17 / 08 / 2561------(OCR) Page 1 of the one-page summary of the invention of transformers and LLC resonance converters is provided. The said transformer has two cores, first and second, which are arranged so that a pair of outer feet, one and a middle foot are positioned between these two outer feet to induce a magnetic field; the first and second inductor windings are arranged so that a conductor surrounds the circumference of each side of the pair of outer feet of the first core and is connected in series; and the first and second transformer windings are arranged so that a conductor surrounds the circumference of each side of the pair of outer feet of the second core, with the pair of outer feet of the first core facing the pair of outer feet of the second core, the middle foot of the first core facing the middle foot of the second core, and the first and second cores are spaced apart. ------------

Claims

------17 / 08 / 2561------(OCR) Page 1 of 3 Claims 1. A transformer which comprises: a first and a second core arranged to have a pair of outer feet and a middle foot positioned between the pair of outer feet and to induce a magnetic field; a first and a second inductor coil arranged to have a conductive section enclosing each side of the pair of outer feet of the first core and to be connected in series; and a first and a second transformer coil arranged to have a conductive section enclosing each side of the pair of outer feet of the second core, where the pair of outer feet of the first core faces the pair of outer feet of the second core, the middle foot of the first core faces the middle foot of the second core, and the first and second cores are spaced apart.

2. A transformer as described in claim1 such that when current is passed to the first and second inductor coils, these first and second inductor coils will generate a voltage.The inductance in the center foot region is generated by the magnetic flux created in the center foot of the first and second cores, and the inductance in the outer foot region of the first and second cores is generated by the magnetic flux created in the outer foot region of the first and second cores.

3. The transformer as specified in claim 2, where the inductance in the center foot region is determined by the distance between the center foot of the first and second cores, the cross-sectional area of ​​the center foot, and the number of turns of the first and second inductor coil sections surrounding the outer foot of the first core, and the inductance in the outer foot region of the first and second cores is determined by the distance between the outer foot of the first and second cores, the cross-sectional area of ​​the outer foot, and the number of turns of the first and second inductor coil sections surrounding the outer foot of the first core.

4. The transformer as specified in claim 3, where the number of turns of the first inductor coil section and the number of turns of the second inductor coil section are equal. Page 2 of Number 3, Page 5.The transformer as described in claim2, whereby when voltage is applied to the first and second inductor coil sections, and the second outer foot inductor and the middle foot inductor use a resonant inductor, the first outer foot inductor uses a magnetic inductor, and when no voltage is applied to the first and second inductor coil sections, and the first outer foot inductor and the middle foot inductor use a resonant inductor, the second outer foot inductor uses a magnetic inductor.

6. The LLC resonant converter comprises: a switching section configured to actuate power according to the switching control signal; a transformer configured to be connected in series with the resonant capacitor connected to the said switching section; and a rectifier configured to be connected to the said transformer, where the said transformer has: a first and a second core configured to have a pair of outer feet and a middle foot.which is positioned between the aforementioned pair of outer feet and to induce a magnetic field; the first and second inductor coil sets which are arranged to have conductive sections that wrap around the circumference of each side of the aforementioned pair of outer feet of the first core and to be connected in series with each other; and the first and second transformer coil sets which are arranged to have conductive sections that wrap around the circumference of each side of the aforementioned pair of outer feet of the second core, where the aforementioned pair of outer feet of the first core faces the aforementioned pair of outer feet of the second core, the middle section of the first core faces the middle section of the second core, and the first and second cores are placed at a distance of 7 from each other. The LLC resonance converter as specified in claim 6 where, when current is passed to the sectionThe first and second induction coil sets generate inductance in the middle section by magnetic flux created in the middle section of the first and second cores (page 3 of 3) and generate inductance in the outer sections of the first and second cores by magnetic flux created in the outer sections of the first and second cores.

8. LLC resonance converter as specified in claim 7 where the number of turns of the first induction coil set and the number of turns of the second induction coil set are equal.

9. LLC resonance converter as specified in claim 7 where when an electrical voltage is applied to the first and second induction coil sets and the outer section inductance in the second and middle sections, the resonant inductance in the first outer section will act as a magnetic inductor, and when an electrical voltage is not applied to the first and second induction coil sets and theThe induction at the first outer foot and the induction at the middle foot use resonance inductors; the induction at the second outer foot uses magnetic inductors.

10. The LLC resonance converter as specified in claim 6, where the switch is configured in a half-bridge or full-bridge configuration.