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Multi-output power supply

A multi-output and power supply technology, which is applied in the direction of output power conversion devices, electrical components, and adjustment of electrical variables, can solve problems such as power imbalance and switching duty cycle imbalance

Active Publication Date: 2014-06-04
SOLUM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, a power imbalance may occur between multiple output powers due to an unbalanced switching duty cycle

Method used

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Embodiment Construction

[0031] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, this invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, the shapes and dimensions of elements may be exaggerated for clarity, and the same reference numerals will be used throughout to designate the same or like elements.

[0032] figure 1 It is a schematic diagram showing the structure of a multi-output power supply according to an embodiment of the present invention.

[0033] see figure 1 , the multi-output power supply 100 may include a power supply unit 110 and a controller 120 .

[0034] The power supply unit 110 may include a switching unit 113 , a transformer 114 , and o...

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Abstract

There is provided a multi-output power supply capable of maintaining power balancing between multiple output powers by fixing a switching duty until a voltage level reaches a predetermined voltage level during an initial stage of a soft-start operation, the multi-output power supply including a power supply unit switching an input power and outputting a plurality of powers having levels determined according to the switching, and a controller controlling a soft switching operation of the power supply unit during an initial operation and fixing a switching duty of the power supply unit to a preset switching duty according to a result of a comparison between a preset reference voltage level and an operating voltage determining whether the soft switching operation is performed or not during the soft switching operation.

Description

[0001] Cross References to Related Applications [0002] This application claims priority from Korean Patent Application No. 10-2012-0131932 filed on Nov. 20, 2012 at the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference. technical field [0003] The present invention relates to a multi-output power supply for preventing power imbalance among the multi-outputs during an initial driving operation. Background technique [0004] In general, power supplies have been widely used in commercial electronic equipment except for equipment such as personal computers and home appliances such as air conditioners, stereo systems, and audio-visual equipment in the past. [0005] The power supply can provide multiple output power sources depending on the electronics to which the power supply is applied. [0006] A general multi-output power supply converts input power into alternating current (AC) power through a transformer, and then rectifie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/335
CPCY02B70/1491H02M3/33507H02M3/33561H02M3/28
Inventor 韩岱勋金瑞亨李在新成濬晔黄甫铉权正善
Owner SOLUM CO LTD