上海贝岭650V/80A IGBT助力高效率逆变焊机设计，开关速度快、关断损耗小、导通电压低

时间： 2024-09-28 来源：上海贝岭公众号

技术问答

一、引言

逆变焊机作为一种先进的焊接设备，在现代工业中占据了重要的地位。与传统的变压器式焊接设备相比，具有诸多优点，如：

高效节能

由于逆变焊机的工作频率很高（通常在20kHz~100kHz），因此它能更有效地利用电能，减少能量损失。

轻便便携

相比传统焊机，逆变焊机体积小、重量轻，易于携带。

焊接性能好

逆变焊机能提供更稳定的电弧，减少飞溅，提高焊接质量。

可调节性强

用户可以根据不同的焊接材料和厚度来调整焊接参数，灵活性更高。

如图1所示，逆变焊机工作原理是先将电网提供的工频交流电转变为直流电，然后通过电子开关（IGBT/MOSFET）将直流电逆变成高频交流电，最后通过整流得到适合焊接工艺要求的电流和电压。

图1 逆变焊机工作方框图

二、逆变焊机拓扑介绍

逆变焊机主电路拓扑已经较为成熟，主要的拓扑有双管正激式、推挽式、半桥式、全桥式等。

图2.1为半桥式拓扑结构。该拓扑由两个功率管组成桥式电路，其对称交替导通有利于变压器完全复位，磁芯利用率高，输出响应快，且半桥分压电容器的存在能够较好抗磁偏。该拓扑广泛应用于中小功率逆变焊机。但在相同功率下，半桥式功率管要承受更大的电流。

图2.2为全桥式拓扑结构。该拓扑由四个功率管组成桥式电路，主要应用于大电流、大功率场合，变压器磁芯利用率高，成本也相应较高。

图2.1 半桥逆变主电路

图2.2 全桥逆变主电路

三、逆变焊机IGBT损耗分析

目前市面上大部分逆变焊机采用的为硬开关电路，电路拓扑如图2.1和2.2，通过测试分析，该应用场景IGBT器件的损耗主要来源于以下四个部分，如图3.1所示：

1、IGBT器件内部合封二极管续流和反向恢复过程损耗Ediode

2、IGBT开启损耗Eon

3、IGBT通态损耗Econ

4、IGBT关断损耗Eoff

图3.1 逆变焊机IGBT开关波形

如图3.2所示，逆变焊机硬开关应用中，关断损耗Eoff占比最大，其次为导通损耗Econ。

图3.2 IGBT损耗占比

四、上海贝岭650V/80A IGBT产品优势

为适应逆变焊机客户大电流IGBT单管需求，上海贝岭研发推出650V/80A IGBT单管BLG80T65FDK7，助力高效率逆变焊机设计。该器件具有开关速度快、关断损耗小、导通电压低等特点，可满足客户高效率设计要求。

4.1器件技术

上海贝岭650V/80A IGBT产品BLG80T65FDK7采用了第七代微沟槽多层场截止IGBT技术，进行了特殊工艺控制，优化了VCE(sat)和Eoff参数，提升了产品的可靠性。

4.2饱和压降VCE(sat)

逆变焊机中IGBT的导通损耗占总损耗比例较大，影响导通损耗的主要参数为VCE(sat)，常温下贝岭BLG80T65FDK7导通压降比竞品低12%，导通损耗比竞品更低。

图4.1 不同温度下饱和压降对比

4.3关断损耗Eoff

BLG80T65FDK7具有较小的寄生电容，这保证了器件有更高的开关速度，开关频率高达50kHz以上，如图4.2所示，通过测试IGBT的损耗，BLG80T65FDK7关断损耗比竞品低5%。

图4.2 IGBT关断损耗对比

4.4系统优势

IGBT开关频率的提高还可以显著提升逆变焊机对电流的控制精度，同时器件损耗的减小，可在大功率输出工况下提升焊机的工作效率，显著降低正常工作时IGBT器件的温升。上海贝岭BLG80T65FDK7基于优异的器件设计，为逆变焊机系统顺利通过温升、输出短路等测试提供了保障。如图4.3，常温自然散热情况下，贝岭BLG80T65FDK7和竞品壳温基本一致，满足客户的需求。

图4.3 IGBT壳温对比

五、上海贝岭功率器件选型方案

上海贝岭功率器件产品线齐全，包含MOSFET、IGBT等系列产品，为逆变焊机主逆变和辅助电源设计提供助力，具体型号参考表1：

表1 功率器件选型表

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本文由ll转载自上海贝岭公众号，原文标题为:上海贝岭650V/80A IGBT助力高效率逆变焊机设计，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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型号- HM2N60F,HMS320N04D,HM4822B,HM20P02D,HM8N02MR,HMS310N85,HM3N40R,HMS320N04G,HMS60N10DA,HM3205,HMS150N04D,HM3207,HM2N60K,HM9435B,HM15N50D,HM15N50F,HM80N06KA,HM90N04D,HM17N10K,HMG40N65FT,HM150N03D,HM3N40PR,HMS150N06D,HM75N07K,HM4606D,HM2N20MR,HM3710K,HM20P03Q,HM90N07K,HM05P35MR,HMC4N65,HM10N10,HM3401PR,HMS5N90R2,HMC6N65K,HM20P02Q,HMS40N65T,HMS35N06D,HMS20N70,HMS45P06D,HMS35N06Q,HMC6N65Q,HMC15N65,HM06N15MR,HM4826A,HM12P06K,HMS260N10D,HM50N10K,HMS20N80,HMS60N06D,HMS10N15D,HMS15N65F,HM2N65K,HMG40N65AT,HMS60N06Q,HM40N10A,HM20N03K,HM2N65R,HM9N50K,HMS15N65K,HMS10N50,HMS15N65Q,HM4490B,HM4030D,HM10N65D,HMS3N65R,HM18P10K,HM150N03K,HM10N65F,HMS3N65K,HM4828A,HM4354,HM4110,HM3800D,HMS60N08D,HMS120N10,HM7002KDM,HM7002KDW,HM4805A,HM25N50F,HM90N02D,HM25N50A,HMS3N65F,HMS150N03D,HMC2N120,HMS330N06D,HM4402A,HM2305PR,HM4402B,HM4620D,HM6N70,HM4886A,HM4402D,HM3N80I,HMS10N50K,HM3N80K,HMS10N50F,HM12N60,HMS5N70R2,HMC2N65,HM3N80F,HM12N65,HM80N04K,HM5N65K,HM10N06Q,HM5N65F,HM25SDN03Q,HM80N03A,HMS135N85,HM4887B,HM1404B,HM1404C,HM1404D,HMS3N70R2,HM40N15KA,HM3205D,HM3205B,HM20N120FT,HM4N60I,HMS4444A,HM4922,HM0565,HM4923,HM4920,HM80N03K,HM4926,HM2310DR,HMS4444B,HM4N60R,HMS310N85D,HM4622A,HMS20N80T,HM3N100F,HM3205K,BSS138SR,HM8N100A,HM3N100D,HM07DP10D,HM3400B,HM3400C,HM3400D,HM3400E,HM3DN10D,HMS20N80D,HM8N100F,HMS20N80F,HM18SDN04D,HM4953,HM20DN04Q,HMS3205,HM3P10MR,HM6N10PR,HM15P06Q,HM830,HM55N03D,HM3401C,HM3401D,HM25N120FT,HM3401E,HM3207D,HM30DN02D,HMS17N65,HM3207B,HM6803D,HM3207T,HM340B,HMS17N65F,HMS25N65F,HM4N65K,HMS17N65D,HM4N65F,HMS8N70,HMS8N65,HM4N65R,HMS80N10K,HM2310,HM840,HM3401,HMS80N10G,HM2301BJR,HM3400,HMS25N65T,HM2301DR,HMS15N80F,HMS15N80D,HM3407,HM2318,HM2319,HMS5N65K,HM5N20R,HM2309APR,HMS5N65F,HM2319D,HM16N50F,HMS5N65R,HMS80N10D,HM10N70,HMS5N65Q,HM20P04Q,HMS135N04D,HM4963,HM2301,HM2300,HM9N90F,HM2302,HM2305,HM9N90A,HM10N65,HM4953B,HM2318D,HM3N120F,HM10N60,HM3N120A,HM3422,HM6804D,HM8N60,HM4821A,HMS3205K,HM4409A,HM4402CE,HMC20N120,HM11P20K,HM8N65,HMS3205D,HM2301BKR,HMC20N65T2,HM100N06D,HM01N100PR,HMS11N70K,HM603K,HM30P10,HMS11N70Q,HMS135N10,HM85N02K,HM15N50,HM2818D,HM640,HMS11N70F,HM12N65F,HM12N65D,HM20N50F,HM30SDN02D,HM8205,HM2819D,HM40N20,HM06DP10Q,HM20N06KA,HM1607,HM250N03,HMC10N65,BSS138KR,BSS123DM,HM605K,HM4N70,HMS21N65D,HM6604DB,HMS21N65F,HMC2N120K,HMS21N65T,HM4421C,HM100N06,HM4421A,HM100N03,HM100N02,HM4N60,HM4N65,HMS85P06,HM15N25,HM607K,HM3808,HM30N10,HM18N50F,HMS4354,HM30P55,HM30N04Q,HM12N20D,HM2301BSR,HM2N15PR,HM18N50A,HMS120N10G,HMS320N04,HMS120N10D,HMS120N10K,HM20P02QD,HM45N02Q,HM4421D,HMC5N120K,HMC4N65K,HMS80N06D,HM2P15R,HM5N60I,HM5N60K,HM25P15K,HM30N04D,HMC20N65,HM4640D,HM4884A,HM609K,HM30N02Q,HMS85N10,HM85P02K,HMS5N90K,HMS5N90F,HM70P03K,HMS5N90I,HMS5N90R,HM13N50,HM20N50A,HM40DN04K,HM30N03K,HM100N03K,HM1404,HM3207BD,HM2301KR,HM100N03D,HM45N02D,HM4885A,HM100P03,HM4884Q,HM30N02D,HMS310N85LL,HMS330N06,HM100N02K,HM5N06APR,HM09P12D,HM70N75,HM4260,HM5P15D,HM45P02D,HMS320N04LL,HMS10N80,HM2810D,HMN9N65Q,HM4P10D,HM50N06KA,HM70N80,HM4485,HMN9N65D,HM4484,HM70N88,HM25N60A,HM4P10R,HM4487,HM30P02K,HMC15N65D,HM3205BK,HM7N80F,HM730F,HM2N10B,HM2N10C,HMS3N70,HM50N08,HM50N06,HM3N150,HM50N03,BSS84,HM10N60F,HMS50N06K,HMC8N65K,HMC8N65Q,HMC8N120K,BSS138DM,HM4485A,HM45N06D,HM40P04,HM4030,HM4264,HM6604BWKR,HMS4030D,HM15N25K,HM4486A,HM4110T,HM50N20,HM4P15Q,HM4P10PR,HM4485E,BSS138DW,HM100P03K,HM4485B,HMS100N85D,HMS100N85G,HMS100N85K,HM840F,HM4487B,HM4487A,HMS3N65,HM15N02Q,HM2N60,HM2310PR,HM7002KR,HM12N60F,HMS5N65R2,HM8820E,HM17N10,HMS85N10K,HMS85N10G,HM10N80F,HMS85N10D,HM35P03KA,HM45P02Q,HM30P03Q,HM10N80A,HM8N65K,HMS330N06LL,HM8N65F,HMS8N70F,HM3401DR,HM4440A,HM45P03K,HM9N20K,HM15N25F,HMS8N70K,HM3400KR,HM4616D,HM5P55R,HM16N65F,BSS84DM,HM4616A,HM10N10Q,HM4412,HMS40N10KA,BSS84DW,HM10N10K,HMC8N120,HM4615Q,HMS3N70K,HM75N06KA,HMS3N70F,HM4885,HM4884,HM60P06K,HM50N03K,HMS3N70R,HM4887,HM4409,HM15N120FT,HM4407,HM4616Q,HM2302F,HM2302G,HM2302D,HM60P06,HM2302E,HM2302B,HM80N15,HM4618A,HMC20N120D,HM3N30R,HMS190N04D,HM35P03D,HM35P03K,HM4435,HMS15N70Q,HM4438,HM50P35DE,HM10DP06D,HMS15N70F,HM4437,HM2N50R,HMS15N70K,HM2301E,HM4N10D,HM40N20D,HM2301D,HM2301B,HM7002K,HM40N10KA,HMS18N10Q,HMS200N03D,HM6602,HM4924/B,HM4421,HM4618Q,HMS18N10D,HM6604,HMS100N20D,HM120N04,HM70N75D,HM2300B,HMS80N25,HM120N03,HMS5N80,HM35N03D,HMS5N70,HM4453,HM4450,HM8205D,HM80N70,HM3N30PR,HM10SDN06D,HMC20N65D,HMS80N10,HM25N65A,HM3N100,HM4924B,HMS5N90,HM4443,HM4449,HM1P10MR,HM4447,HM20N15D,HM60N06,HM60N05,HMS40N10D,HM60N08,HM60N02,HMS15N50F,HM60N04,HMS15N50D,HM60N03,HMS65N65T,HMS80N85D,HMS125N10D,HM4240,HMS21N65,HM4480,HM50P06,HM50P03,HM50P02,HM3N10A,HM9926,HM2N65PR,HM6P15K,HM35N03Q,HM02P30R,HM8205A,HM6400,HM2318APR,HMS5N65,HM6401,HM3N120,HM6408,HMS40N10A,HM6409,HM75N80,HM13P10K,HMS10DN08Q,HM10DN06Q,HM25N06D,HM60N03D,HM6N10R,HM2302BKR,HM4812,HM4813,HM25N10,HM60N03K,HMS4438,HMS85N08K,HM2302KR,HM70P04K,HM2N50PR,HMS16N70,HM150N03,HM60N04K,HM3710,HM4805,HM4803,HMS260N10LL,HM7N60,HM18N40F,HMS5N70F,HMS135N10K,HM3N70I,HM18N40A,HM3N70K,HM18DP03Q,HMS5N70K,HMS80N25D,HM4830,HM18DP03D,HM60N05K,HM45P03,HMS5N70

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描述- ROHM's IGBTs (Insulated Gate Bipolar Transistors) contribute to higher efficiency and energy savings for a wide range of high voltage and high current applications.ROHM's IGBTs contribute to greater efficiency and energy savings in a variety of high-voltage, large-current applications, including electric vehicles (EVs), trains, air conditioners, portable welding machines, DC/AC inverters.

型号- RGSX5TS65HR,RGW50TS65,RGS30TSX2DHR,RGW50TK65,RGTH40TS65,RGW40TK65,RGWX5TS65HR,RGS60TS65DHR,RGW40TS65,RGW00TS65DHR,RGSX5TS65DHR,RGS30TSX2D,RGTH50TS65,RGT20TM65D,RGTH60TS65D,RGW80TS65DHR,RGT8NS65D,RGPR50NL45HRB,RGTH60TK65D,RGT40NL65D,RGTH40TK65,RGTH00TK65D,RGT40TS65D,RGT30NS65D,RGW80TS65,RGTVX2TS65,RGW80TK65,RGT50TM65D,RGTV60TK65D,RGT16NL65D,RGW60TS65D,RGTV60TS65D,RGT50NS65D,RGS50TSX2D,RGC80TSX8R,RGW60TK65D,RGW00TK65D,RGS30TSX2HR,RGS80TSX2HR,RGTH50TK65,RGW00TS65CHR,RGTH80TS65,RGT40TM65D,RGCL80TK60,RGS30TSX2,RGTVX2TS65D,RGS00TS65DHR,RGPR20BM36HR,RGW60TS65EHR,RGW00TS65D,RGT40NS65D,RGTH80TK65,RGCL80TS60,RGS80TSX2DHR,RGW80TS65CHR,RGTH80TS65D,RGPZ10BM40FH,RGT20NL65D,RGTHD40TS65HR,RGWX5TS65EHR,RGS60TS65HR,RGTH80TK65D,RGS80TS65HR,RGT80TS65D,RGPZ30BM56HR,RGTH50TS65D,RGPR20NL43HR,RGW60TS65HR,RGW00TS65HR,RGW50TK65D,RGS80TS65DHR,RGS80TSX2,RGT50TS65D,RGW00TS65,RGW80TS65HR,RGSX5TS65E,RGT30NL65D,RGTVX6TS65,RGW80TK65E,RGW80TK65D,RGT30TM65D,RGW80TS65D,RGPR30NS40HR,RGS00TS65EHR,RGW60TS65DHR,RGWX5TS65D,RGW50TS65D,RGCL60TS60,RGT8TM65D,RGS50TSX2,RGPR10BM40FH,RGCL60TK60,RGTV80TK65,RGCL80TK60D,RGCL80TS60D,RGTV00TK65D,RGS50TSX2DHR,RGTV80TS65,RGTV00TS65D,RGT8BM65D,RGWX5TS65DHR,RGTH00TS65D,RGT20NL65,RGTV60TS65,RGTV00TK65,RGWX5TS65,RGTV00TS65,RGCL60TK60D,RGT8NL65D,RGTH00TK65,RGTV60TK65,RGPR30BM40HR,RGTH60TK65,RGT60TS65D,RGT16NS65D,RGT20NS65D,RGS50TSX2HR,RGTVX6TS65D,RGW00TS65EHR,RGTH40TS65D,RGT00TS65D,RGS80TSX2D,RGTH40TK65D,RGSX5TS65EHR,RGPR20NS43HR,RGW60TS65CHR,RGW40TK65D,RGT50NL65D,RGW00TK65,RGW80TS65EHR,RGW40TS65D,RGCL60TS60D,RGS00TS65HR,RGTV80TS65D,RGW60TS65,RGTH60TS65,RGTH50TK65D,RGT16BM65D,RGT16TM65D,RGPR30BM56HR,RGW60TK65,RGTV80TK65D,RGTH00TS65

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ROHM（罗姆）IGBT选型指南（英文）

目录- Field Stop Trench IGBT Ignition IGBT

型号- RGSX5TS65HR,RGW50TS65,RGS30TSX2DHR,RGW50TK65,RGTH40TS65,RGW40TK65,RGWX5TS65HR,RGS60TS65DHR,RGW00TS65DHR,RGW40TS65,RGSX5TS65DHR,RGS30TSX2D,RGTH50TS65,RGT20TM65D,RGTH60TS65D,RGT8NS65D,RGW80TS65DHR,RGPR50NL45HRB,RGTH60TK65D,RGT40NL65D,RGTH40TK65,RGTH00TK65D,RGT40TS65D,RGT30NS65D,RGW80TS65,RGTVX2TS65,RGT50TM65D,RGW80TK65,RGTV60TK65D,RGT16NL65D,RGW60TS65D,RGTV60TS65D,RGS50TSX2D,RGT50NS65D,RGC80TSX8R,RGW00TK65D,RGW60TK65D,RGS30TSX2HR,RGS80TSX2HR,RGTH50TK65,RGW00TS65CHR,RGTH80TS65,RGT40TM65D,RGCL80TK60,RGS00TS65DHR,RGS30TSX2,RGTVX2TS65D,RGPR20BM36HR,RGW60TS65EHR,RGW00TS65D,RGT40NS65D,RGTH80TK65,RGCL80TS60,RGS80TSX2DHR,RGW80TS65CHR,RGTH80TS65D,RGPZ10BM40FH,RGT20NL65D,RGS60TS65HR,RGWX5TS65EHR,RGTH80TK65D,RGS80TS65HR,RGT80TS65D,RGPZ30BM56HR,RGTH50TS65D,RGTH40TS65DHR,RGPR20NL43HR,RGW60TS65HR,RGW00TS65HR,RGW50TK65D,RGS80TS65DHR,RGS80TSX2,RGT50TS65D,RGW00TS65,RGSX5TS65E,RGW80TS65HR,RGT30NL65D,RGTVX6TS65,RGW80TK65E,RGW80TK65D,RGT30TM65D,RGW80TS65D,RGPR30NS40HR,RGS00TS65EHR,RGW60TS65DHR,RGWX5TS65D,RGW50TS65D,RGCL60TS60,RGT8TM65D,RGS50TSX2,RGPR10BM40FH,RGCL60TK60,RGTV80TK65,RGCL80TK60D,RGCL80TS60D,RGTV00TK65D,RGS50TSX2DHR,RGTV80TS65,RGTV00TS65D,RGT8BM65D,RGT20NL65,RGTH00TS65D,RGWX5TS65DHR,RGTV00TK65,RGTV60TS65,RGWX5TS65,RGTV00TS65,RGCL60TK60D,RGT8NL65D,RGTH00TK65,RGTV60TK65,RGPR30BM40HR,RGTH60TK65,RGT60TS65D,RGT16NS65D,RGS50TSX2HR,RGT20NS65D,RGTVX6TS65D,RGW00TS65EHR,RGT00TS65D,RGTH40TS65D,RGS80TSX2D,RGSX5TS65EHR,RGTH40TK65D,RGPR20NS43HR,RGW60TS65CHR,RGW40TK65D,RGT50NL65D,RGW00TK65,RGW80TS65EHR,RGCL60TS60D,RGW40TS65D,RGS00TS65HR,RGTV80TS65D,RGTH50TK65D,RGTH60TS65,RGW60TS65,RGT16BM65D,RGT16TM65D,RGPR30BM56HR,RGW60TK65,RGTV80TK65D,RGTH00TS65

选型指南 - ROHM - 2022/3/28 收起