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Multi-phase power supply for stepdown system

A power supply step-down, multi-phase technology, applied in electrical components, circuit devices, high-efficiency power electronic conversion, etc., to achieve the effect of improving safety and voltage conversion efficiency

Active Publication Date: 2020-05-05
WIWYNN CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The first stage voltage converter converts the input voltage to generate the relay voltage
The second stage voltage converter converts the relay voltage to generate the output voltage

Method used

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  • Multi-phase power supply for stepdown system
  • Multi-phase power supply for stepdown system
  • Multi-phase power supply for stepdown system

Examples

Experimental program
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Embodiment Construction

[0061] Please refer to figure 1 , figure 1A schematic diagram of a multi-phase power step-down system according to an embodiment of the present invention is shown. The multi-phase power step-down system 100 includes a plurality of first-stage voltage converters 111 - 11N, a plurality of second-stage voltage converters 121 - 12M and a controller 130 . The first-stage voltage converters 111 - 11N are coupled in parallel and form the voltage converters of the first level S1 . The first-stage voltage converters 111 - 11N jointly receive the input voltage VIN, and convert the input voltage VIN to generate the relay voltage VMID. A plurality of second-level voltage converters 121 - 12M are coupled in parallel to form a second level of voltage converters S2 . The second-stage voltage converters 121 - 12M jointly receive the relay voltage VMID, and convert the relay voltage VMID to generate the output voltage VOUT. The first-stage voltage converters 111-11N are used to respectivel...

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PUM

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Abstract

The invention provides a multi-phase power supply for stepdown system, including a plurality of first stage voltage converters, a plurality of second stage voltage converters and a controller. The first stage voltage converters are under open-loop control, and the second stage voltage converters are under close-loop voltage regulation control. The first stage voltage converters convert an input voltage to generate a midway voltage. The second stage voltage converters convert the midway voltage to generate an output voltage. The controller receives the output current of each phase of the firststage voltage converters and the second stage voltage converters, the input voltage, the midway voltage of each phase and the output voltage. The controller adjusts a number of enabled phases and balances the output current according to the output currents, and outputs stable power according to the input voltage, the midway voltage and the output voltage. The voltage conversion efficiency can be improved.

Description

technical field [0001] The invention relates to a step-down system, in particular to a two-stage multi-phase power supply system. Background technique [0002] In the prior art, a multi-phase power step-down system is connected in parallel through a plurality of voltage converters, and performs an output action of supplying power. Although this method can output higher wattage power, it sacrifices the efficiency at light load. Moreover, the single-phase protection mechanism adopted in the prior art cannot optimize the power conversion efficiency, let alone perform effective protection actions when the line is abnormal. Contents of the invention [0003] The invention provides a multi-phase power step-down system, which can improve the voltage conversion efficiency. [0004] The multi-phase power step-down system provided by the present invention includes multiple first-stage voltage converters, multiple second-stage voltage converters and controllers, the first-stage vol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/00
CPCH02M1/0067H02M3/1588H02M3/1584H02J1/102H02M1/32Y02B70/10H02M1/007H02M3/073H02M3/157H02M3/077
Inventor 黄柏嘉
Owner WIWYNN CORP
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