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A DC isolated power supply

A technology of DC isolation and DC voltage, which is applied in the direction of converting DC power input to DC power output, electrical components, and adjusting electrical variables, and can solve problems such as unstable output voltage of vehicle power supplies

Active Publication Date: 2019-10-25
CHUZHOU HKC OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the embodiment of the present application provides a DC isolated power supply to solve the problem of unstable output voltage of conventional vehicle power supplies

Method used

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Embodiment Construction

[0029] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.

[0030] In order to illustrate the technical solutions described in this application, specific examples are used below to illustrate.

[0031] Embodiments of the present application provide the DC isolated power supply on the one hand.

[0032] see figure 1 As shown, it is a schematic block diagram of a structure of a DC isolated power supply provided by an embodiment of the present...

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Abstract

This application belongs to the field of power supply circuits, and discloses a DC isolated power supply, including a low-pass filter module, a first boost module, an isolated voltage conversion module, a second boost module, an output switch module and a step-down module; a low-pass filter module The DC voltage of the first preset size is externally connected to filter the noise and then sent to the first booster module; the first booster module boosts the DC voltage of the first preset size to the second preset size and then outputs it to the isolated voltage conversion module ; The isolated voltage conversion module converts the DC voltage of the second preset size into AC and outputs it to the output switch module; the output switch module rectifies and stabilizes the AC power into DC voltages of the third preset size and the fourth preset size before outputting; The second step-up module converts the DC voltage of the third preset size into a DC voltage of the fifth preset size and outputs it; the step-down module converts the DC voltage of the fourth preset size into a DC voltage of the sixth preset size Voltage, the output is controlled by the output switch module.

Description

technical field [0001] The application belongs to the field of power circuits, and in particular relates to a DC isolated power supply. Background technique [0002] Some car TV power supplies used in RVs are basically designed with non-isolated solutions. Although the structure and cost have certain advantages, they have obvious defects in the stability and safety of the power board. [0003] Conventional vehicle power supplies cannot be applied to high-end vehicle equipment due to limitations such as low efficiency, high temperature, large loss, and unstable output voltage. Contents of the invention [0004] In view of this, the embodiment of the present application provides a DC isolated power supply to solve the problem of unstable output voltage of conventional vehicle power supplies. [0005] An aspect of the embodiments of the present application provides a DC isolated power supply, including: [0006] A low-pass filter module, a first boost module, an isolated vo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M3/335
CPCH02M3/33576H02M1/009
Inventor 王智勇刘伏根
Owner CHUZHOU HKC OPTOELECTRONICS TECH CO LTD