Switching power supply, electrical isolation method and multi-meter concentrated reading communication device

A switching power supply and external power supply technology, applied in the electrical field, can solve the problems of poor anti-interference performance and insulation performance, high power consumption, large size and weight of the conversion circuit, etc.

Inactive Publication Date: 2016-11-16
WUHAN SAN FRAN ELECTRONICS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the conversion circuit of the prior art, the volume and weight of the conversion circuit are large, the conversion efficiency is low, ...

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  • Switching power supply, electrical isolation method and multi-meter concentrated reading communication device
  • Switching power supply, electrical isolation method and multi-meter concentrated reading communication device
  • Switching power supply, electrical isolation method and multi-meter concentrated reading communication device

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Embodiment Construction

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0026] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...

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Abstract

The embodiments of the invention provide a switching power supply, an electrical isolation method and a multi-meter concentrated reading communication device. The switching power supply comprises a control circuit and a transformer; an external power supply is coupled with a primary coil of the transformer, the primary coil of the transformer is coupled with the control circuit, the transformer has a plurality of secondary coils, and each secondary coil of the transformer is coupled with the primary coil of the transformer; and each secondary coil of the transformer is coupled with an external load. The transformer is used for adjusting the input voltage of the external power supply into multiple voltage signals via the electromagnetic effect of the primary coil and the plurality of secondary coils thereof, and outputting each voltage signal to the load, so as to electrically isolate the external power supply from the loads. 4KV electrical isolation between the external power supply and the loads is realized by the electrical isolation between the primary coil and the plurality of secondary coils of the transformer. 4KV electrical isolation between the loads is realized by the electrical isolation between the secondary coils of the transformer.

Description

technical field [0001] The invention relates to the field of electrical technology, in particular to a switching power supply, an electrical isolation method, and a multi-meter centralized reading communication device. Background technique [0002] With the development and improvement of science and technology, remote meter reading and monitoring through the electric power centralized reading platform in the existing electric meter technology have been widely used, but water meters, gas meters and heat meters still need to be read manually or Remote meter reading system (Symphonic Mbus, MBUS) for centralized reading. Manual meter reading has the disadvantages of high labor intensity, low efficiency and high cost. The Mbus meter reading method not only needs to be rewired, but also because it is incompatible with the meter reading method of the electric meter, it needs to be converted by a conversion circuit to realize multi-meter centralized reading. However, in the conver...

Claims

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Application Information

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IPC IPC(8): H02M7/02G08C17/02
CPCH02M7/02G08C17/02
Inventor 李中泽杨飞于轩熊冰张方方
Owner WUHAN SAN FRAN ELECTRONICS CO LTD
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