Ripple detection device and ripple suppression device

A detection device, ripple technology, applied in output power conversion devices, control/regulation systems, noise figure or signal-to-noise ratio measurement, etc., can solve the problem of reducing the working performance of non-isolated DC/DC bidirectional energy converters, etc. problem, to achieve the effect of detection, improvement of work performance, and suppression

Pending Publication Date: 2021-12-28
ZTE CORP
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] Due to the simple circuit structure and high conversion efficiency, non-isolated DC / DC bidirectional energy converters have been widely used this year, but they often generate ripple noise signals at the output port, which will reduce the non-isolated DC / DC power converters. Working Performance of DC Bidirectional Energy Converter

Method used

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  • Ripple detection device and ripple suppression device
  • Ripple detection device and ripple suppression device
  • Ripple detection device and ripple suppression device

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Embodiment Construction

[0031] In order for those skilled in the art to better understand the technical solutions of the present application, the ripple detection device and the ripple suppression device provided by the present application will be described in detail below with reference to the accompanying drawings.

[0032] Example embodiments will be described more fully hereinafter with reference to the accompanying drawings, but may be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this application will be thorough and complete, and will fully convey the scope of the application to those skilled in the art.

[0033] In the case of no conflict, each embodiment of the present application and each feature in the embodiment can be combined with each other.

[0034] As used herein, the term "and / or" includes any and all combinations of at least one of the associated listed items.

[0035] The term...

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Abstract

The invention provides a ripple detection device and a ripple suppression device. The ripple detection device comprises a ripple sampling unit, at least two direct current sampling units and a digital signal processing unit; wherein the ripple sampling unit is used for outputting a first voltage signal of an output port of the non-isolated DC/DC bidirectional energy conversion unit to the digital signal processing unit; the direct current sampling units are used for outputting a first direct current signal in a second voltage signal of the port of the connected non-isolated DC/DC bidirectional energy conversion unit to the digital signal processing unit, and preventing alternating current signals in the second voltage signals from being output to the digital signal processing unit; and the digital signal processing unit is used for determining a ripple noise signal of the output port of the non-isolated DC/DC bidirectional energy conversion unit according to the first voltage signal and the first DC signal.

Description

technical field [0001] The embodiments of the present application relate to the technical field of power electronics, and in particular to a ripple detection device and a ripple suppression device. Background technique [0002] A DC / DC (direct current to direct current) bidirectional energy converter refers to a converter with two or more energy ports. Take the two-port bidirectional energy converter as an example, one of which is an energy input port, and the other is an energy output port. The energy input port and the energy output port can be interchanged, and energy can be bidirectionally transmitted and flowed between the input port and the output port. [0003] Due to the simple circuit structure and high conversion efficiency, non-isolated DC / DC bidirectional energy converters have been widely used this year, but they often generate ripple noise signals at the output port, which will reduce the non-isolated DC / DC power converters. Working performance of DC bidirecti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R29/26H02M3/158H02M1/14
CPCG01R29/26H02M3/158H02M1/14H02M3/1582H02M3/1586G01R31/40G01R29/06G01R19/2509G01R19/2513
Inventor 王恰周建平林国仙樊珊珊鄂本张伟刘明明
Owner ZTE CORP
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