Power converter and inductor structure

A power converter, power stage circuit technology, applied in the direction of transformer/inductor core, transformer/inductor coil/winding/connection, output power conversion device, etc., can solve the problem of low saturation magnetic flux density of magnetic core, slow It is not easy to achieve flow sharing, and it is impossible to achieve volume change, so as to achieve the effect of reducing volume, solving transient response, and high thermal conductivity

CN114242403APending Publication Date: 2022-03-25NANJING SILERGY SEMICON TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2022-03-25

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Abstract

The invention discloses a power converter and an inductance structure, the power converter comprises an inductance structure, and the inductance structure comprises a first inductance coil, a second inductance coil, a third inductance coil, a fourth inductance coil and an Nth inductance coil and a coupling coil. Each path of inductance coil and the corresponding transistor form a power level circuit so as to generate an output signal at the output end of the power level circuit; and the coupling coil and each path of inductance coil form a negative coupling relationship. Negative coupling among the multiple inductors is achieved in an indirect coupling mode, transient response of large current application is solved, and current sharing among the multiple inductors is achieved.
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Description

technical field

[0001] The present invention relates to a semiconductor technology, more specifically, to a power converter and an inductor structure. Background technique

[0002] The high-current multi-channel parallel structure has become the main structure of the voltage regulator module (Voltage Regulator Module, VRM) circuit that supplies power to CPUs and servers. Most of the inductors used are multiple ferrite inductors used side by side. However, due to the low saturation magnetic flux density and low thermal conductivity of the ferrite inductor, it cannot be designed with a smaller volume. And when multiple channels of ferrite inductors are used side by side, when the load of one channel changes suddenly, the other channels will perceive it very slowly and it is not easy to achieve current sharing among the branches. Contents of the invention

[0003] In view of this, the present invention provides a power converter and an inductor structure to solve the above ...

Examples

Embodiment Construction

[0030] The present invention is described below based on examples, but the present invention is not limited to these examples. In the following detailed description of the invention, some specific details are set forth in detail. The present invention can be fully understood by those skilled in the art without the description of these detailed parts. In order not to obscure the essence of the present invention, well-known methods, procedures, procedures, components and circuits have not been described in detail.

[0031] Additionally, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.

[0032] Meanwhile, it should be understood that in the following description, "circuit" refers to a conductive loop formed by at least one element or sub-circuit through electrical connection or electromagnetic connection. When an element or circuit is said to be "connected to" another eleme...