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Interleaved power supply and corresponding control method

A staggered and staggered mode technology, applied in the field of staggered power supply, can solve the problem of unbalanced power supply of staggered PFC circuit

Active Publication Date: 2021-05-25
ASTEC INT LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under certain conditions, the currents through different phases of an interleaved PFC circuit power supply may become unbalanced

Method used

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  • Interleaved power supply and corresponding control method
  • Interleaved power supply and corresponding control method
  • Interleaved power supply and corresponding control method

Examples

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Embodiment Construction

[0067] Example embodiments will now be described more fully with reference to the accompanying drawings.

[0068] Example embodiments are provided so that this disclosure will be thorough, and will fully convey the scope to those who are skilled in the art. Numerous specific details are set forth, such as examples of specific components, devices, and methods, to provide a thorough understanding of embodiments of the invention. It will be apparent to those skilled in the art that specific details need not be employed, that example embodiments may be embodied in many different forms, and that neither specific details nor example embodiments should be construed to limit the invention. scope. In some example embodiments, well-known processes, well-known device structures, and well-known technologies are not described in detail.

[0069] The terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. As used ...

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Abstract

The invention discloses an interleaved power supply and a corresponding control method. According to some aspects of the present invention, exemplary interleaved power supplies and corresponding control methods are disclosed. An exemplary interleaved power supply includes an input terminal, an output terminal, and a first phase circuit coupled between the input terminal and the output terminal. The first phase circuit includes a first inductor and a first switch. The power supply also includes a second phase circuit coupled between the input terminal and the output terminal. The second phase circuit includes a second inductor and a second switch. The power supply also includes at least one current sensor, and a controller operable to control the first phase circuit and the second phase circuit in an interleaved mode when the sensed output current is below a current threshold, and when the sensed output current When the current is above the current threshold, the controller is operable to control the first phase circuit and the second phase circuit in an in-phase mode.

Description

technical field [0001] The present invention relates to an interleaved power supply including an interleaved power factor correction (PFC) circuit and a corresponding control method. Background technique [0002] This section provides background information related to the present disclosure which is not necessarily prior art. [0003] An interleaved power factor correction (PFC) circuit power supply includes multiple converter phase circuits that provide power to a load in different phases. The interleaved PFC circuit power supply can reduce current ripple at the output of the power supply. Under certain conditions, the currents through different phases of an interleaved PFC circuit power supply may become unbalanced. Contents of the invention [0004] This section provides a general summary of the invention and is not a comprehensive disclosure of the full scope of the invention or all features of the invention. [0005] Concept 1: An interleaved power supply comprisin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M1/00H02M1/42
CPCH02M1/4225H02M1/0009H02M1/0043H02M3/1584H02M3/1586Y02B70/10H02M1/083H02M1/42H02M1/08
Inventor 吴永晖李家杰何曙林郑振诚凌仲恒
Owner ASTEC INT LTD