电感啸叫的原因及解决方式

时间： 2024-11-11 来源：SGTE

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人耳能听到的声音频率介于20Hz-20kHz间，如果产生电感啸叫，那电感两端的开关激励电流频率在这之间，所以我们听到电感会发出“滋滋滋”的叫声。其声响或大或小，或时有时无，很像我们站在寒风中的“啸叫”声。我们将电感的这种现象，称为“啸叫”

那要怎么解决呢？

1. 改变频率

尝试调节高于可听范围（20Hz-20kHz）的开关频率以降低噪声。亦可尝试降低负载电流或更换功率稍微大些的DC-DC转换器，改善负载电流过大的问题。

SGTE所生产的功率电感器，高频特性良好，在100KHz-1MHz频段损耗低，性能稳定，是降噪电路的不二之选。

2. 固定电感

电感器由多个部件组合而成，且贴装于基板上时，将会产生多个人耳可听频率的固有振动数，该振动放大后便会形成啸叫。同时，若与组件整体的多个固有振动数相一致时，在安装至组件中之后有可能会发生啸叫。

通过错开固有振动数或提高振动数可降低啸叫。例如，通过变更电感器形状、种类、布局、基板紧固等条件，包含基板的组件整体固有振动数将会发生变化。此外，啸叫常见于7mm尺寸以上的大型功率电感器中。通过采用5mm以下的小型功率电感器，固有振动数将会提高，从而可降低啸叫。SGTE所生产的03-07mm尺寸系列已推向市场多年，现已有数条生产线可实现自动化、规模化生产。更具优良焊接力的07宽端子系列产品一经推出就收获客户好评如潮。

3. 更换磁芯

当电感线圈隙中存有磁能时，会产生振动并产生噪声。根据负载情况，频率和部件变化，可听噪声的数量会有所不同。如果是这种情况，可考虑改用铁氧体磁芯。

针对啸叫问题，置换为金属一体成型电感器是有效的解决方案。SGTE具有独立制备各具特性的软磁性金属磁粉的能力。后采用在软磁性金属磁粉中嵌入空心线圈再进行一体成型的工艺。由于没有间隙，因此磁芯之间不会相互吸引，同时，固定线圈时使其与磁性体形成一体化，因此还可避免因磁通造成绕组振动的问题。

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本文由Vicky转载自SGTE，原文标题为:电感啸叫的原因及解决方式，本站所有转载文章系出于传递更多信息之目的，且明确注明来源，不希望被转载的媒体或个人可与我们联系，我们将立即进行删除处理。

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【选型】三礼电子 HPIF&UPIF-BQ系列一体成型功率电感选型指南

目录- Molding Power Inductors Molding Power Inductors Cautions and Warnings Molding Power Inductors Electrical Characteristics Test Notes

型号- UPIF0624BQ-2R2M,HPIF0518BQ-100M,HPIF0512BQ,HPIF0412BQ-R33M,UPIF0605BQ-3R3M,UPIF1205BQ-1R5M,UPIF0603BQ-R56M,UPIF0605BQ-R56M,HPIF0502BQ-3R3M,HPIF0515BQ-100M,UPIF0603BQ-R68M,HPIF0618BQ,UPIF1206BQ,HPIF0502BQ-1R0M,UPIF0624BQ-1R5M,UPIF0603BQ-150M,HPIF0402BQ-8R2M,UPIF0503BQ-4R7M,UPIF1004BQ-R22M,HPIF0415BQ-3R3M,HPIF0412BQ-3R3M,UPIF0503BQ-1R0M,UPIF0603BQ-3R3M,HPIF0402BQ-6R8M,UPIF1004BQ-150M,UPIF0603BQ-5R6M,UPIF0503BQ-R68M,UPIF1004BQ-100M,UPIF0603BQ-R33M,HPIF0412BQ-R22M,UPIF1003BQ-3R3M,HPIF0502BQ-5R6M,HPIF0618BQ-R47M,HPIF0402BQ-R56M,HPIF0412BQ-1R0M,HPIF0402BQ-R68M,HPIF0515BQ-5R6M,UPIF0503BQ-R20M,HPIF0618BQ-1R5M,UPIF-BQ SERIES,UPIF0503BQ-3R3M,HPIF0618BQ-2R2M,HPIF0412BQ-4R7M,UPIF0603BQ-220M,UPIF1004BQ-R45M,UPIF1003BQ-1R0M,HPIF0518BQ-R47M,UPIF1004BQ-220M,UPIF0603BQ-8R2M,HPIF0515BQ-3R3M,HPIF0515BQ,HPIF0518BQ-2R2M,UPIF0603BQ-R82M,HPIF0618BQ-R22M,HPIF0412BQ-R47M,UPIF1004BQ-1R8M,UPIF1004BQ-4R7M,UPIF0624BQ-R47M,UPIF1205BQ-100M,UPIF0624BQ-6R8M,UPIF1004BQ-R68M,UPIF1004BQ-R56M,HPIF0402BQ-3R3M,UPIF-BQ,HPIF0515BQ-R68M,UPIF0503BQ-1R2M,UPIF0603BQ-6R8M,UPIF0603BQ-4R7M,UPIF1004BQ-3R3M,HPIF0502BQ-R47M,HPIF0618BQ-R33M,UPIF1205BQ-R47M,HPIF0402BQ-1R0M,HPIF0420BQ,HPIF0518BQ 系列,HPIF0515BQ-1R0M,HPIF0515BQ-4R7M,UPIF1003BQ,HPIF0402BQ-4R7M,HPIF0518BQ-6R8M,HPIF0612BQ-6R8M,HPIF0502BQ-1R5M,UPIF0603BQ-1R0M,UPIF0603BQ,HPIF0615BQ-2R2M,HPIF SERIES,HPIF0618BQ-100M,UPIF0603BQ-1R8M,UPIF1004BQ-1R0M,UPIF0503BQ-100M,HPIF0512BQ-6R8M,UPIF0503BQ-R47M,HPIF0618BQ-R68M,UPIF0605BQ-2R2M,UPIF0624BQ-150M,HPIF0412BQ,HPIF0612BQ-4R7M,HPIF0515BQ-6R8M,HPIF0502BQ-2R2M,HPIF0402BQ-R47M,UPIF0624BQ-3R3M,HPIF0615BQ-4R7M,HPIF0415BQ-2R2M,HPIF0412BQ-2R2M,HPIF0415BQ-1R5M,HPIF0618BQ-4R7M,HPIF0412BQ-1R5M,UPIF0603BQ-2R2M,UPIF0603BQ-1R5M,HPIF0402BQ-100M,HPIF0618BQ-1R0M,UPIF0624BQ-R33M,HPIF0518BQ-1R0M,UPIF0624BQ-1R0M,HPIF0502BQ,UPIF1004BQ-8R2M,UPIF0624BQ-4R7M,UPIF1004BQ-6R8M,HPIF0518BQ-4R7M,UPIF1004BQ,HPIF0502BQ-100M,UPIF0503BQ-1R5M,HPIF0615BQ-6R8M,HPIF0512BQ-1R0M,HPIF0612BQ,UPIF0503BQ-2R2M,UPIF0624BQ-R22M,HPIF0518BQ,HPIF0502BQ-6R8M,UPIF0624BQ-100M,HPIF0515BQ-2R2M,UPIF1205BQ-6R8M,UPIF0603BQ-R10M,UPIF0603BQ-R22M,HPIF0512BQ-2R2M,HPIF0518BQ-3R3M,HPIF0618BQ-6R8M,UPIF1206BQ-100M,HPIF0415BQ,UPIF1206BQ-330M,HPIF0515BQ-1R5M,UPIF1205BQ,UPIF1004BQ-R36M,UPIF0603BQ-330M,UPIF0503BQ,UPIF0603BQ-100M,HPIF0402BQ-2R2M,HPIF0402BQ-1R5M,UPIF,UPIF1004BQ-1R5M,UPIF1004BQ-2R2M,HPIF0412BQ-R68M,UPIF1205BQ-4R7M,HPIF0502BQ-4R7M,UPIF0624BQ,UPIF0503BQ-6R8M,UPIF0603BQ-R47M,UPIF0605BQ-1R0M,HPIF0402BQ-R10M,HPIF0402BQ-R22M,UPIF1004BQ-R90M,UPIF1206BQ-220M,UPIF1205BQ-1R0M,UPIF1206BQ-150M,HPIF0415BQ-1R0M,UPIF1004BQ-R47M,HPIF0615BQ,UPIF0605BQ,UPIF1003BQ-R33M,HPIF0415BQ-4R7M,HPIF0615BQ-3R3M,UPIF0605BQ-4R7M,HPIF0515BQ-R47M

选型指南 - 三礼电子 - Rev 1.1 - 20210727 PDF 英文下载

铭普光磁（Mentech）功率磁珠选型指南

目录- POWER INDUCTOR Introduction POWER INDUCTOR Selection table POWER INDUCTOR Selection Guide

型号- MHB1110SGR25K,MHB1005SG SERIES,MHB1304SGR38M,MHB1308SGR26KA,MHB1207SG SERIES,MHB1010SG,MHB1807SG,MHB1206SGR22L,MHB1304SG,MHB1304SGR46M,MHB0605SGR08K,MHB1308SG,MHB1206SGR18L,MHB1304SGR22M,MHB0710-SGR20K,MHB0710SGR37K,MHB0810SGR55K,MHB1005SGR25K,MHB0710SGR45K,MHB1010SGR35K,MHB0810SGR SERIES,MHB1308SG SERIES,MHB0810SGR15K,MHB1207SGR30M,MHB0605SGR13K,MHB1207SGR50M,MHB1010SGR38K,MHB1206SGR37L,MHB1207SGR70M,MHB1110SGR40K,MHB1110SGR32K,MHB1110SGR20K,MHB1206SGR33L,MHB1304SGR25M,MHB1304SGR33M,MHB0810SGR36K,MHB1807SG SERIES,MHB0810SGR44K,MHB1005SGR22K,MHB1005SGR10K,MHB0810SGR20K,MHB1110SG,MHB0710-SGR27K,MHB1807SGR66M,MHB1207SG,MHB1010SGR30K,MHB1010SGR22K,MHB1207SGR35M,MHB1304SG SERIES,MHB1807SGR46M,MHB1807SGR34M,MHB1308SGR21KA,MHB1308SGR44KA,MHB1206SGR12L,MHB1010SGR25K,MHB0605SGR22K,MHB0605SGR18K,MHB0710SG,MHB0810SGR25K,MHB0710-SGR22K,MHB1005SGR15K,MHB0710-SGR18K,MHB1010SGR33K,MHB1110SGR27K,MHB1110SGR15K,MHB1110SG SERIES,MHB1010SGR45K,MHB1206SGR23L,MHB1110SGR22K,MHB1308SGR32KA,MHB1308SGR11KA,MHB1005SG,MHB1207SGR40M,MHB1110SGR30K,MHB1207SGR60M,MHB0605SGR15K,MHB1304SGR19M,MHB1010SG SERIES,MHB1807SGR80M,MHB0710-SGR33K,MHB0810SGR22K,MHB1807SGR40M,MHB1807SGR60M,MHB1005SGR20K,MHB0810SGR30K,MHB0810SGR,MHB1005SGR16L,MHB1206SG,MHB1005SGR12K,MHB0710SG SERIES,MHB1206SG SERIES,MHB1005SGR08K,MHB0605SGR10K

选型指南 - 铭普光磁 - 2021/4/29 PDF 英文下载

功率电感器的特点及应用

功率电感器以其高效率和低直流电阻的特点，在电池供电的便携式电子设备和其他电子设备中具有重要的应用。通过提供稳定的电源输出和高效的能量传输，功率电感器有助于提升设备性能、延长电池寿命，并保障设备在不同工作场景下的可靠性。

技术探讨发布时间 : 2024-07-10

【选型】Laird（莱尔德）MGV高电流和薄型SMD功率电感器选型指南（中文）

目录- 高电流和薄型SMD功率电感器特性和应用高电流和薄型SMD功率电感器形状和尺寸及焊接温度曲线 MGV系列高电流和薄型SMD功率电感器 MGV系列高电流和薄型SMD功率电感器MGV系列包装资料高电流和薄型SMD功率电感器样品套件列表

型号- MGV12073R3M-10,MGV0503330M-10,MGV05026R8M-10,MGV0603150M-10,MGV0605150M-10,MGV06251R0M-10,MGV0503R47M-10,MGV03023R3M-10,MGV12053R3M-10,MGV0412,MGV03021R2M-10,MGV05022R2M-10,MGV06038R2M-10,MGV06058R2M-10,MGV0603R22N-10,MGV05024R7M-10,MGV0603R33M-10,MGV0625R10N-10,MGV1205220M-10,MGV1207220M-10,MGV0302R82M-10,MGV1205R82M-10,MGV0402,MGV05021R5M-10,MGV04124R7M-10,MGV1207R82M-10,MGV1707220M-10,MGV1207R15M-10,MGV0412R68M-10,MGV03021R5M-10,MGV0512100M-10,MGV05023R3M-10,MGV1207R22M-10,MGV17073R3M-10,MGV04122R2M-10,MGV12071R5M-10,MGV0402R10N-10,MGV06056R8M-10,MGV06031R5M-10,MGV0312,MGV12056R8M-10,MGV12052R2M-10,MGV06052R2M-10,MGV17071R5M-10,MGV0302100M-10,MGV1207100M-10,MGV0605R68M-10,MGV04126R8M-10,MGV1004R56M-10,MGV12054R7M-10,MGV1207R30M-10,MGV10041R0M-10,MGV10045R6M-10,1004,MGV1707100M-10,MGV06054R7M-10,MGV0302,MGV1707470M-10,MGV17076R8M-10,MGV0503R56M-10,MGV06021R0M-10,MGV06033R3M-10,MGV10044R7M-10,MGV04121R0M-10,MGV0503100M-10,MGV0503R10N-10,MGV05021R2M-10,MGV05031R2M-10,MGV10041R5M-10,MGV06055R6M-10,MGV10042R2M-10,MGV06051R0M-10,MGV12071R8M-10,MGV1207150M-10,MGV0302R47M-10,MGV0625R33M-10,MGV0312100M-10,MGV1205R47M-10,MGV1207R47M-10,MGV05121R0M-10,MGV1205R33M-10,MGV0302R22N-10,MGV12058R2M-10,MGV12078R2M-10,MGV1207330M-10,MGV10046R8M-10,MGV1205330M-10,MGV0603220M-10,MGV0605220M-10,602,603,MGV1004220M-10,1707,MGV0603R82M-10,MGV0605R82M-10,MGV1004R22M-10,MGV0605R22M-10,MGV12051R5M-10,MGV1205R22M-10,MGV05033R3M-10,MGV0602R22N-10,MGV06252R2M-10,MGV1004470M-10,MGV04121R5M-10,MGV06051R5M-10,MGV0402100M-10,MGV06036R8M-10,MGV04021R2M-10,MGV1205,MGV06256R8M-10,MGV0512R47M-10,MGV03123R3M-10,MGV1207,MGV06032R2M-10,MGV0412R22M-10,MGV06254R7M-10,MGV0412220M-10,MGV04023R3M-10,MGV1207R68M-10,MGV12055R6M-10,MGV17072R2M-10,MGV0402R56M-10,MGV06034R7M-10,MGV17074R7M-10,502,503,MGV0302R68M-10,625,MGV0602R47M-10,MGV05036R8M-10,MGV04024R7M-10,MGV03122R2M-10,MGV06254R7M-10/12,MGV03121R5M-10,MGV0625220M-10,MGV0512R68M-10,MGV1707560M-10,MGV04021R5M-10,MGV0502R47M-10,MGV0602150M-10,512,MGV系列,MGV12075R6M-10,MGV0312R22M-10,MGV0503R22M-10,MGV03126R8M-10,MGV06253R3M-10,MGV03021R0M-10,MGV12051R0M-10,MGV12071R0M-10,MGV0603R47M-10,MGV0402220M-10,MGV17071R0M-10,MGV0512150M-10,MGV0602R68M-10,MGV0503150M-10,MGV04022R2M-10,MGV03124R7M-10,MGV04026R8M-10,402,MGV0605470M-10,MGV0603470M-10,MGV0603330M-10,MGV0302R10N-10,MGV0625R82M-10,MGV0512R10N-10,MGV0625R22M-10,MGV1004R47M-10,MGV1004100M-10,MGV0402150M-10,MGV10041R2M-10,412,MGV0512R22M-10,MGV06021R5M-10,MGV05121R5M-10,MGV10043R3M-10,MGV05032R2M-10,MGV1004,MGV0602R10N-10,MGV0603100M-10,MGV05034R7M-10,MGV0602R33M-10,MGV06251R5M-10,MGV05021R0M-10,MGV0503R68M-10,MGV0602220M-10,MGV0412R47M-10,MGV1207R56M-10,302,MGV1205R68M-10,MGV0625100M-10,MGV1004R20N-10,MGV0402R68M-10,MGV0402R22N-10,MGV1707101M-10,MGV06053R3M-10,MGV0312R82M-10,MGV0502R10N-10,MGV06023R3M-10,MGV0502100M-10,MGV1707330M-10,MGV0412R10N-10,MGV04121R2M-10,MGV1707,MGV0412100M-10,MGV0503R82M-10,MGV05124R7M-10,MGV12051R8M-10,MGV0625150M-10,MGV06031R0M-10,MGV1205150M-10,MGV1707150M-10,MGV0603R10N-10,MGV0602100M-10,MGV04123R3M-10,MGV1207R33M-10,MGV0502R68M-10,MGV05031R0M-10,MGV1004R36M-10,MGV05123R3M-10,MGV06024R7M-10,MGV0503R33M-10,MGV0625R47M-10,MGV1004330M-10,MGV1707820M-10,MGV0602R56M-10,MGV1207470M-10,MGV0605,MGV0312R68M-10,MGV0602,MGV0603,MGV1004R19N-10,MGV05126R8M-10,MGV03022R2M-10,MGV05121R2M-10,MGV0402R47M-10,MGV1004150M-10,MGV06258R2M-10,MGV12076R8M-10,MGV0512,MGV03121R0M-10,MGV03026R8M-10,MGV0503220M-10,MGV1207R40M-10,MGV12072R2M-10,MGV06022R2M-10,MGV1707680M-10,MGV0312R47M-10,MGV05122R2M-10,MGV05031R5M-10,MGV1205100M-10,MGV06021R2M-10,MGV1205R56M-10,MGV0605100M-10,MGV06026R8M-10,MGV0603R68M-10,MGV04021R0M-10,MGV0605R56M-10,MGV1004R15N-10,MGV0502,MGV0625R68M-10,MGV,MGV12074R7M-10,MGV0503,1207,MGV0625,MGV03024R7M-10

选型指南 - LAIRD PDF 中文下载

【产品】三礼电子推出TLVR双绕组电感器HCM120611系列，电感范围100nH~470nH

电感器采用TLVR拓扑结构，可实现更快的瞬态回应，并采用双绕组功率磁珠电感器。三礼电子HCM120611系列功率电感器的电感范围为100nH至470nH， TLVR利用现有的自动电感器基础设施快速有效地开发产品。

产品发布时间 : 2022-10-24

带您一文了解电感器，空心电感器和换衡器

在本篇文章中，Knowles聚焦于电感器本身及其与之相关的无源电子元件，具体涉及空心电感器以及换衡器的原理与应用。

技术探讨发布时间 : 2024-05-26

Littelfuse（力特）EMI滤波器&功率电感器停产通知（PCN12172018）

描述- Discontinuation Notice for EMI filter and Power inductorPart Numbers.

型号- LCFE160804A180TG,LCFE300806A750TG,LCFA121002B900TG,LCFEA201204A101TG,LCF300806A750TG,LCFA201202A900TG,LPWI201610SR24T,LCFA201204A101TG,LCFEA201202A900TG,LPWI201608SR47T,LPWI201608SR24T,LPWI201608SR68T,LCFEA121002A900TG,LPWI201610HR68T,LPWI252010SR68T,LPWI201610S1R5T,LCFA121002A900TG,LCF201204A181TG,LPWI252010HR33T,LPWI201608S1R5T,LPWI252010HR68T

产品变更通知及停产信息 - LITTELFUSE - 2018年12月17日 PDF 英文下载