【应用】高定额纹波电流的多层陶瓷电容器,助力逆变器控制应用
在电机驱动逆变器中,多层陶瓷电容器可作为储能元件外,抑制浪涌电压,也可以用于鉴频滤波。此外,还具备“隔直通交”的特性:在电路中可与其它元件并联,使交流通过,而直流被阻隔下来,起到旁路的作用;在交流电路中,随着输入信号的极性变化,电容器进行充放电,从而使其两端的电路变为导通状态,起到耦合的作用。通常,与放大器或运放输入端相联电容器的为耦合电容器;与放大器或运放发射极相联的电容器为旁路电容器。一般采用Ⅱ类电容器,要求电容值一般为0.1uF左右。
图1 电机驱动逆变器框图
随着技术的不断发展,电机驱动逆变器也不断向小型化、大容量化、高可靠性以及低成本的方向发展。因此,要求其所使用的电容器要具备体积小、比容大、寿命长、纹波电流高以及适合表面安装等优势。针对这种情况,本文推荐Nippon Chemi-Con(黑金刚)提供的两种解决方案——NTD系列和NTJ系列多层陶瓷电容器,具备体积小、容量大以及纹波电流高等优势,非常适用于电机驱动逆变器控制。
方案一是采用NTD系列多层陶瓷电容器,无铅设计(陶瓷介质),ESR比较低,具备出色的高频特性,可使用250V直流电压供电,表面使用UL94 V-0树脂涂层,高额定纹波电流。此外,其温度范围为-55℃~125℃,额定电压提供25Vdc、50Vdc、100Vdc、250Vdc以及500Vdc可选,电容值范围为0.1μF~470μF,温度特性为X7R(在-55℃~125℃温度范围内的容量变化为15%,并且是非线性的)。除了逆变器控制应用之外,还适用于开关模式下的AC-DC或DC-DC转换器的平滑电路、各种设备的噪音抑制器、旁路电路、去耦电路以及汽车设备等领域。
图2 NTD系列示意图
图3 NTD系列结构图
方案二是采用NTJ系列多层陶瓷电容器,与NTD系列相比,除了体积小、容量大、纹波电流高等优势之外,可以1000次温度循环,卓越的噪音吸收特性,额定电压提供25Vdc、50Vdc、100Vdc以及250Vdc可选,电容值范围为1.0μF~100μF,额定电容容差为±20%。
图4 NTJ系列示意图
图5 NTD系列结构图
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76N0T00,KTD500B15
Nippon Chemi-Con(黑金刚)多层陶瓷电容器选型指南(英文)
描述- Nippon Chemi-Con will continue to use the development of small electronic components to address the challenge of creating a bright future.
型号- KTS350B476□76N0T00,KVD250L225□32A0T00,KTS101B225□43N0T00,KTD101B155□32A0T00,KTS350B685□43N0T00,KTS251B155□55N0T00,KTJ250B336M55BFT00,KVF250L474□31NLT00,KTS350B155□31N0T00,KTS251B103□31N0T00,KTD101B226M90A0B00,KTF101B685□55FHT00,KTS500B685□43N0T00,KTS500B155□31N0T00,KVF500L475□55NHT00,KTD250B107M80A0B00,KTS501B564□55N0T00,KTD500B686M90A0B00,KTS101B225M32N0T00,KTS251B683□31N0T00,KTF500B335□32NHT00,KTF500B155□32NHT00,KVJ500L106M55BRT00,KVF250L685□43NHT00,KTF350B156□55NHT00,KTF250B155□31NLT00,KTF500B106□55NHT00,KTD500B475□43A0T00,KVD500L684□32A0T00,KVD SERIES,KTF250B105□31NLT00,KTS501B105□76N0T00,KTS251B334□32N0T00,KTS501B125 76N0T00,KTF500B156□55NHT00,KTD101B476M99A0B00,KTJ101B685M55BFT00,KVF101L224□32NLT00,KTF500B225□31NLT00,KVJ101L155M55BRT00,KTD101B106M80A0B00,KTF350B335□32NHT00,KTS251B105□55N0T00,KTD250B227M90A0B00,KVF500L685M55NHT00,KVD101L684□43A0T00,KTD501B125□76A0T00,KTD251B224□32A0T00,KVD101L224□32A0T00,KVD,KVF500L684□32NLT00,KTJ350B686M76BFT00,KTD500B336M80A0B00,KVF,KTS350B105□31N0T00,KTJ101B685M76AFT00,KTF101B225□31NLT00,KTS251B154□32N0T00,KVJ,KTS250S335□31N0T00,KTS250B475□32N0T00,KTS101B334□31N0T00,KTF350B105□31NLT00,KTF251B154□32NLT00,KTD500B156□55A0T00,KTF101B155□32NHT00,KTF251B473□31NLT00,KTS500B475□32N0T00,KTF101B335□43JHT00,KVJ101L105M55ART00,KVF500L335□55NLT00,KVJ250L106M55ART00,KTF101B105□32NHT00,KTS251B333□31N0T00,KVF250L225□32NHT00,KVF SERIES,KVJ SERIES,KTF501B564□55NLT00,KTJ500B156M55BFT00,KVJ500L335M55ART00,KTS500B105□31N0T00,KTS500B226□76N0T00,KTD251B225□76A0T00,KTJ250B107M76BFT00,KTJ350B476M55BFT00,KTD500B106□55A0T00,KTD251B106M99A0B00,KTD101B105□32A0T00,KTS250B685□32N0T00,KTD251B225M80A0B00,KTF101B154□31NLT00,KTJ101B226M55BFT00,KTS101B225□31N0T00,KTS101B475□55N0T00,KTD250B477M99A0B00,KVD500L474□32A0T00,KTF350B155□31NLT00,KTJ500B336M76BFT00,KVD500L155□43A0T00,KTF101B104□31NLT00,KTJ350B476M76AFT00,KTD500B335□32A0T00,KTF500B334□31NLT00,KTD251B156M99A0B00,KT5M05T501560JBBF0,KTD501B105□76A0T00,KTD101B335□55A0T00,KVF101L105□55NLT00,KTD101B107M99A0B00,KVD250L105□32A0T00,KTF500B684□31NLT00,KVD500L685M55A0T00,KTD251B684□43A0T00,KTS101B104□31N0T00,KTF250B335□32NHT00,KTF101B475□32NHT00,KTD500B476M90A0B00,KTJ500B336M55BFT00,KTD250B336□55A0T00,KTF500B475□43NHT00,KTF251B224□32NLT00,KTS101B155□31N0T00,KTJ250B686M76BFT00,KTS500B475□43N0T00,KTF101B685□43NHT00,KTD251B105□55A0T00,KTS250B105□31N0T00,KTS250B106□43N0T00,KTD250B156□55A0T00,KTS350B225□31N0T00,KTF101B474□31NLT00,KTD350B335□32A0T00,KVF500L685□55NHT00,KTS101B475□32N0T00,KTJ251B105M55AFT00,KTD350B685□43A0T00,KTD350B476□76A0T00,KTF250B225□31NLT00,KTF101B106□55NHT00,KVF101L684□43NLT00,KVD500L335□55A0T00,KVF500L474□31NLT00,KVD500L685□55A0T00,KTJ251B225M55BFT00,KTF500B105□31NLT00,KTS250S226□43N0T00,KTD101B334□32A0T00,KVF101L683□31NLT00,KVD101L104□32A0T00,KTF250B336□55NHT00,KTJ500B476M76BFT00,KTD250B476□76A0T00,KTD501B684□76A0T00,KTD350B156□55A0T00,KTF251B105□55NLT00,KTF350B106□43NHT00,KVD250L685□43A0T00,KTD250B685□43A0T00,KTS350B106□43N0T00,KTD251B104□32A0T00,KVD500L225□43A0T00,KTF250B106□43NHT00,KTF101B225□32NHT00,KTF350B225□31NLT00,KTD250B686M80A0B00,KTF500B475□32NHT00,KTS101B225□32N0T00,KTS101B106□55N0T00,KT5M05T501560DBA00,KTJ500B226M76AFT00,KTD500B227M99A0B00,NTJ SERIES,KTS251B155□76N0T00,KTS250B476□76N0T00,KTD350B106□43A0T00,KTD500B106M55A0T00,KTS500B474□31N0T00,KVF500L154□31NLT00,KTS250B336□55N0T00,KTJ101B156M55BFT00,KTS501B684□76N0T00,KVF500L225□43NHT00,KTD500B155□32A0T00,KTF101B224□31NLT00,KTD101B225□32A0T00,KTS350B335□32N0T00,KVF250L335□32NHT00,KTS250B225□31N0T00,KTF101B475□55NHT00,KTS500B106□55N0T00,KTF250B226□55NHT00,KTD250B106□43A0T00,KTF500B685□43NHT00,KVF500L104□31NLT00,KTD500B225□32A0T00,KTF101B225□43NHT00,KTD251B474□43A0T00,KTS251B225□76N0T00,KVD101L155□55A0T00,KTS500B155□32N0T00,KTS500B335□32N0T00,KTS101B474□31N0T00,KVF101L474□43NLT00,KTJ500B156M55AFT00,KTS350B156□55N0T00,KTS101B335□55N0T00,KTS251B684□43N0T00,KVF250L156□55NHT00,KTD350B226□55A0T00,KTD250B337M99A0B00,KTF101B155□31NLT00,KTS101B475□43E0T00,KTS251B224□32N0T00,KVD250L475□43A0T00,KTS101B335□43J0T00,KTS501B474□55N0T00,KTD251B685M99A0B00,KVF250L155□32NHT00,KTD101B684□32A0T00,KTS350B336□76N0T00,KTS101B224□31N0T00,KVF250L106□55NHT00,KTJ251B155M55BFT00,KTS101B685□55F0T00,KVF101L333□31NLT00,KTD251B335M90A0B00,KVD101L334□32A0T00,KTF350B685□43NHT00,KTF500B474□31NLT00,NTD,KTS500B684□31N0T00,NTF,KTD101B685□55A0T00,NTJ,KVF500L334□31NLT00,KTD500B157M99A0B00,KVD101L474□43A0T00,KTF500B225□32NHT00,KTD250B335□32A0T00,KTJ250B476M55BFT00,KTF250B685□32NHT00,KVD101L154□32A0T00,NTS,KTF251B474□43NLT00,KVJ250L226M55BRT00,KTS101B105□32N0T00,KVD250L335□32A0T00,KVD250L156□55A0T00,KTS500B106□43N0T00,KTD500B107M90A0B00,KTD101B686M99A0B00,KVD250L106□55A0T00,KVJ101L225M55BRT00,KTF501B474□55NLT00,KTF251B684□43NLT00,KTS251B104□31N0T00,KTD500B226□76A0T00,KTD101B475□55A0T00,KVF500L155□43NHT00,KTD251B155□55A0T00,KTD101B225□43A0T00,KTJ251B335M76BFT00,KTS101B155□32N0T00,NTD SERIES,KTS500B156□55N0T00,KTF101B225M32NHT00,KVF250L334□31NLT00,KTJ250B336M55AFT00,KVF101L155□55NLT00,KVJ500L225M55ART00,KTF250S106□32NH
【选型】KTJ系列金属帽型多层陶瓷电容器用于直流电源,大容量最大可达200MF,小尺寸节省设计面积
本文在直流电源应用中输入处推荐加黑金刚(Nippon Chemi-Con)的100V、50V的支架电容NTJ系列,可以消除母线电路中的干扰;在输出加支架电容,可以降低输出纹波噪声。
器件选型 发布时间 : 2022-01-01
电子商城
品牌:Nippon Chemi-Con
品类:Aluminum Electrolytic Capacitors
价格:
现货: 200,000
品牌:Nippon Chemi-Con
品类:Aluminum Electrolytic Capacitor
价格:
现货: 200,000
现货市场
服务
可加工PCB层数:4~32层,加工板材:多层板/HDI板/FR4板/高频板/高速板/高温板/铜基板/铝基板/陶瓷基板/软硬结合板,成品尺寸:3~1100mm,板厚:0.15-80mm,最小孔径:0.1mm,铜厚:最高14oz。
最小起订量: 1 提交需求>
可定制UV胶的粘度范围:150~25000cps,粘接材料:金属,塑料PCB,玻璃,陶瓷等;固化方式:UV固化;双固化,产品通过ISO9001:2008及ISO14000等认证。
最小起订量: 1支 提交需求>
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