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US 12,327,902 B2Granted
Electrical isolation apparatus
AssigneeHuawei Digital Power Technologies Co., Ltd.
InventorsLi Yang, Zhenghua Zou
Life of this patent
Estimating the term…
Abstract
An electrical isolation apparatus. A signal is transmitted between a first transmission circuit, a first reference circuit, a second transmission circuit, and a second reference circuit according to a principle of electric field coupling between conductors. Therefore, the electrical isolation apparatus can be applied to isolation and transmission for a signal with a relatively high frequency between a first signal device and a second signal device. In addition, a material used by the electrical isolation apparatus may be a common metal conductor, which greatly reduces a size and costs of the electrical isolation apparatus and facilitates manufacturing and implementation of the electrical isolation apparatus.
Claims11
An electrical isolation apparatus, comprising:
- a primary stage configured to connect to a first signal device, wherein the primary stage comprises a first reference circuit and a first transmission circuit;
- and
- a secondary stage configured to connect to a second signal device, wherein the secondary stage comprises a second transmission circuit and a second reference circuit, wherein
- the first reference circuit, the first transmission circuit, the second transmission circuit, and the second reference circuit are not in contact with each other, and are sequentially disposed in parallel to a first plane, and there is a spacing between a projection of the first reference circuit on the first plane and a projection of the second reference circuit on the first plane;
- the first transmission circuit comprises a first part and a second part;
- wherein
- a projection of the first part on the first plane overlaps with a projection of a first region of the first reference circuit on the first plane, and a projection of the second part on the first plane overlaps with a projection of a second region of the second reference circuit on the first plane;
- and
- the second transmission circuit comprises a third part and a fourth part;
- wherein
- a projection of the third part on the first plane overlaps with a projection of a third region of the second reference circuit on the first plane, and a projection of the fourth part on the first plane overlaps with a projection of a fourth region of the first reference circuit on the first plane.
8 more elements
An electrical isolation apparatus, comprising:
- a primary stage configured to connect to a first signal device, wherein the primary stage comprises a first transmission circuit, a first return circuit, and a first reference circuit;
- and
- a secondary stage configured to connect to a second signal device, wherein the secondary stage comprises a second transmission circuit, a second return circuit, and a second reference circuit, wherein
- the first transmission circuit, the first reference circuit, and the second return circuit are disposed on a same plane, and the second transmission circuit, the second reference circuit, and the first return circuit are disposed on a same plane;
- the first reference circuit, the first transmission circuit, the second transmission circuit, the second reference circuit, the first return circuit, and the second return circuit are not in contact with each other, and are each disposed in parallel to a first plane;
- there is a spacing between a projection of the first reference circuit on the first plane and a projection of the second return circuit on the first plane, and there is a spacing between a projection of the second reference circuit on the first plane and a projection of the first return circuit on the first plane;
- the first transmission circuit comprises a first part and a second part;
- wherein
- a projection of the first part on the first plane falls within a projection, on the first plane, of a first return structure disposed in the first return circuit, and a projection of the second part on the first plane overlaps with a projection of a second region of the second reference circuit on the first plane;
- and
- the second transmission circuit comprises a third part and a fourth part;
- wherein
- a projection of the third part on the first plane falls within a projection, on the first plane, of a second return structure disposed in the second return circuit, and a projection of the fourth part on the first plane overlaps with a projection of a fourth region of the first reference circuit on the first plane.
10 more elements
A signal transmission method, comprising:
- obtaining a first signal from a first signal device;
- inputting the first signal into a first transmission circuit and a first reference circuit;
- receiving a second signal output by a second transmission circuit and a second reference circuit, wherein the first reference circuit, the first transmission circuit, the second transmission circuit, and the second reference circuit are not in contact with each other and are sequentially disposed in parallel to a first plane;
- there is a spacing between a projection of the first reference circuit on the first plane and a projection of the second reference circuit on the first plane;
- the first transmission circuit comprises a first part and a second part, wherein a projection of the first part on the first plane overlaps with a projection of a first region of the first reference circuit on the first plane;
- and a projection of the second part on the first plane overlaps with a projection of a second region of the second reference circuit on the first plane;
- the second transmission circuit comprises a third part and a fourth part, wherein a projection of the third part on the first plane overlaps with a projection of a third region of the second reference circuit on the first plane;
- and a projection of the fourth part on the first plane overlaps with a projection of a fourth region of the first reference circuit on the first plane;
- and
- sending the second signal to a second signal device.
7 more elements
Dependencies are inferred from the claim text.