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A method and apparatus for balancing power density and efficiency of a non-isolated power supply

A power density, non-isolated technology, applied in the direction of adjusting electrical variables, instruments, control/regulation systems, etc.

Active Publication Date: 2016-06-29
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The present invention provides a method and device that takes into account both the power density and efficiency of a non-isolated power supply to solve the technical problem of how to achieve both the power density and efficiency of a non-isolated power supply

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  • A method and apparatus for balancing power density and efficiency of a non-isolated power supply
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  • A method and apparatus for balancing power density and efficiency of a non-isolated power supply

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Embodiment Construction

[0029] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0030] figure 1 It is a flow chart of the method for taking into account the power density and efficiency of the non-isolated power supply in this embodiment.

[0031] S101 sets preset rules reflecting the relationship between the operating frequency of the non-isolated power supply and the output voltage of the non-isolated power supply;

[0032] The preset rule is: the operating frequency of the non-isolated power supply increases with the increase of the output voltage of the non-isolated power supply; such as setting the operating frequency as an exponential function abo...

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PUM

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Abstract

The invention provides a device and a method for combining power density and efficiency of a non-isolated power source. The method includes: determining an operating frequency adpatble to output voltage of the non-isolated power source according to a preset rule, wherein the preset rule includes that the operating frequency of the non-isolated power source is increased along with increase of the output voltage of the non-isolated power source. The device and the method for combining power density and efficiency of the non-isolated power source have the advantage of combination of the power density and efficiency of the non-isolated power source.

Description

technical field [0001] The invention relates to the field of non-isolated power supplies, in particular to a method and a device for taking into account the power density and efficiency of the non-isolated power supply. Background technique [0002] With the miniaturization of electronic equipment, the power supply is required to be miniaturized accordingly. So how to reduce the size of the power supply? In addition to selecting smaller semiconductor devices, the most important thing is to reduce the size of the magnetic devices in the power supply. In order to reduce the volume of the magnetic device, a common technical means in the prior art is to increase the working frequency of the magnetic device. [0003] For a non-isolated power supply, its magnetic device is an inductor, and the calculation formula for the inductance is: [0004] L = V o ( 1...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05F3/02
Inventor 刘飞云欧阳艳红危翔甘旭张滨
Owner ZTE CORP