当SiC MOSFET桥式电路开关时产生的电流和电压是怎样的？

时间： 2024-07-20 来源：SLKOR官网

技术问答

选型帮助

研发客服

商务客服

这里展示的电路图是SiC MOSFET桥式结构同步式升压电路，在LS开关导通时的示例。桥式电路图中包括SiC MOSFET的寄生电容、电感、电阻，以及HS和LS SiC MOSFET的VDS和ID变化所产生的各处栅极电流（绿色线）。

ID变化带来的电压变化

ID的变化将会产生如下所示的电压公式（1）：

这是因为存在于SiC MOSFET源极的寄生电感中流过ID而产生的电压，由电路图中的(I)引起。这个电压会使电流(I)流过。

VDS变化带来的电流变化

以HS为例，当SiC MOSFET关断、VDS变化时，Gate-Drain寄生电容CGD中会产生电流ICGD。如电路图所示，这个电流分为Gate-Source寄生电容CGS侧流过的电流ICGD1：(II)-1和栅极电路侧流过的电流ICGD2：(II)-2。当VDS开始变化时，栅极电路侧的阻抗较大，因此大部分ICGD都在CGS侧，此时的ICGD1如公式（2）所示。

从公式中可以看出，当CGD较大时或CGD/CGS的比值变小时，ICGD1会增加。

dVDS/dt和dID/dt既可以为正也可以为负，因此它们产生的电流和电压在导通（Turn-on）和关断（Turn-off）时的极性是不同的。

发送到邮箱 |
+1 赞 0
收藏
评论 0
| 转发至：

本文由雪飘梦飞转载自SLKOR官网，原文标题为:当SiC MOSFET桥式电路开关时产生的电流和电压是怎样的？，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。

全部评论（0）

暂无评论

SiC MOSFET低边开关导通时的Gate-Source间电压的动作

本文利用公式和示意图形式介绍SiC MOSFET低边开关导通时的Gate-Source间电压的动作。

技术探讨发布时间 : 2024-07-21

Has SLKOR Passed ISO14001?

SLKOR has obtained ISO9001, SGS, ROHS, REACH, and California Proposition 65 certifications. ISO14001 certification is currently in the planning phase for implementation.

技术探讨发布时间 : 2024-08-31

【技术】解析SiC MOSFET结构及特性

本文中HI-SEMICON将为大家解析SiC MOSFET结构及特性。

技术探讨发布时间 : 2022-10-12

SLKOR（萨科微）功率元器件和模块选型指南

目录- 公司介绍碳化硅场效应管/碳化硅肖基特二极管/场效应管超结场效应管/IGBT单管/可控硅二极管静电保护器件/瞬态抑制二极管三极管/电源IC 运算放大器/达林顿晶体管阵列/整流桥/霍尔传感器光耦/石英晶体谐振器

型号- BTW69,MB10S,SL25T135FL,BTA26-1000,SL2306,SL2307,MB10F,SL2308,SMCJ440CA,SL2309,SL55X,SL40N60C,SL2310,SL2312,SL3400,SL54X,SL3402,SL3404,SL4614,RS1A,RS1M,SMF5.0CA,SS120F,SL13N50FS,MMBT4401,FMMT591,MMBT4403,SLESDL0603-24,LM317,2N5551,WE07DF-B,MMSZ5259B,SL2016384MXXX,S2MB,SL2301,SL2302,SL53X,SL2305,1SMB5921B,BTB20-600,SL322526MXXX,SL25N10,S2MF,SLESD8D36V,SL252025MXXX,SL201624MXXX,SLESD5Z5.0C,SL201616MXXX,2SK3018W,SL4949,SS52BF,2SB1261,SL10N65F,ZM4727,2SB1132,1SMA4777A,DB307S,SL1609SH,SL8N65F,SL05N06A,GBLC15CI,2SA812,SLESD8D15V,FMMT493,SMDJ170A,FMMT491,WE05DF-BS,2SC3357,SL78LXX,SL1609SL,SMF5.0A,US1AF,SL12020BT,MMBZ5221B,MMDL914,SL1609TH,SL05N06Z,RS2A,SL42764,SL1609TL,SL53N65CT,SS320BF,RS2M,SLESD5Z7V0,FMMT489,UMB10F,GBLC03CI,MM5Z2V0,MMBT5401,BT136-600,SS22,LMV321,SF1006DS,SL403,2N5401,SL6520B,SL12030BT,KBL4005,UMB1F,SMF58CA,SS32,SMBJ5.0,2SK3018,SMBJ170CA,KBL410,BTA60-1200,GBLC12CI,US2AB,SL322512MXXX,WE24DF-B,SS12,SL3N170AP,US2AF,SMF58A,SL503224MXXX,SL50T65FL,SL1619SH,SL322527MXXX,SL42744D,SL1619SL,SS210B,LM321,SLESDL0603-16,SL201632MXXX,GBU410,IRLML6401,BCP51,BCP53,BCP52,BCP55,BCP54,BZX84C43,BCP56,SL1619TH,SL2733,SL1619TL,SL52X,TL432,TL431,SS52,NUP2105LT1G,SL201625MXXX,SL49SM3579M20P-20,SL252026MXXX,BTA80-1200,SLESDL0603-05,BCP68,SLESD8D3V3,MMSZ5221B,TL431B,SL49SM26M20P-20,F1A,TL431A,DB207S,GBLC24CI,SS220F,2N7002E,BT136-800,F1M,SL85XXX,SL4822A,SL76N60CT,MC34063S,PC817,SL18N50F,SL2328A,BT137-600,MMBZ5262B,SM24C,SM36C,LMV358,RS3AB,SS310C,SS310B,DB107S,SM12C,DB301S,SL40T120FL,KBL610,SL40N65CF,SL80N65CTL,SL12005B,GBP4005,SL49SM25M20P-20,SL22N120A,SL002N02K,SLESD5Z24,MMDT2222A,US2MF,SL503225MXXX,US2MB,SL252024MXXX,SLESD3B5CM,SL05N10A,SL12P03S,C945,US2A,BFG520,SL252016MXXX,SL322532MXXX,SL2319A,SL40N65CT,SLESD5Z36,GBU6005,RS2AF,SL9013MXXXX,SS320F,US2M,SL73XX,ULN2803,SD20C,2SB1197K,SL4409N,ZMM2V0,SL12015B,SLESD5.0U035,US1A,SL10N120A,BTA08-600,SL0501,SL8205S,SL75T65FL1,US1M,SL80N120A,BAS316,2SD965A,S8550,SMBJ5.0C,S6AC,M1,BSS123,SL0601,LM2904,M7,SLPESD15VL1BA,LM2902,GBP3005,SL2309A,SLPESD0402M07,BT137-800,MM1Z39B,SLESD9B5.0ST5G,SLPESD0402M05,SMCJ440A,SMAJ5.0CA,SLPESD0402M03,GBU8005,BTA12-600,SLPESD2CAN,SM20C,RS5AB,SS520F,SL201630MXXX,MMDT3904,BSS138,BTA41-1600,FR101,MMDT3906,SL322525MXXX,SM4001PL,FR107,SMDJ5.0CA,BTA06-600,BZT52B51BS,SLPESD0402M18,SL17010BT,SL322530MXXX,SLPESD0402M16,WE12DF-B,SLPESD0402M12,SL15T65FL,MM5Z75,SMDJ5.0A,SL80N10,DB201S,SL54MXXXX,S1A,S5AC,SL12010B,S5AB,2SD1624,SL6206-XXMR,SMCJ5.0CA,S1M,B772,KBL6005,SMBJ170A,MMBT2222A,AMS1117-XX,SL75XX,DB101S,SL322524MXXX,GBP2005,S2A,BT138-600,2SC1815,SL10N10A,SLESD9B3.3S,SL4813A,S2M,SL002P02K,SL50N120A,SL9435A,SL4184,S10AC,SL80N65CT,1SMA4728A,RS5MB,BC857B,SLESD5Z15V,SL6508B,SL4264-2,ZMM200,MMDT2227,SL1625SL,SM08C,SL252030MXXX,SL20N10,GBU4005,SD03C,SD15C,SL1625SH,BC856B,BTA10-800,SL1625TL,SL306X,GBP210,BT169D,SL4284,SL4041,SL1625TH,SL1613SH,ABS2,BTA26-800,SS510B,ABS10,1N4001W,SS510C,SL6506B,S3AC,S3AB,KBP4005,2SC1623,2SC2712,SF1001DS,ES1JF,2SD1781,1SS226,BZT52B43,SL1613TL,SL305X,SS52F,SL1002B,BTA41-800,SD05C,SL4275,SL1613TH,SS52B,SS52C,S10MC,SS525,BT138-800,SLESD2401QC,2SD1898,BZT52C2V4S,SL2333A,SL100N03,DSK220,SL40N60CF,D882,ES2JF,GBP310,SL3N06,SL304X,SLM511,SL10P04S,SL49SM24M20P-20,BT139-600,1SS355,SL4N65F,S2AF,SL503212MXXX,SL3401S,1N4148W,S2AB,C1815,BTA04-600,ABS210,MMBT3904,ES2JB,KBP2005,MMBT3906,SL9945,MAC97A8,SL78XX,SL1623SL,ABS201,SL303X,MAC97A6,BAV99,SL17025BT,SLM501,SL2192,SLPESD0201M24,KBP210,BZT52B3V0BS,SL1623SH,RS1AF,BTA41-1200,SLESD5Z12V,MB1F,SL4407A,1SS181,BC848B,78MXX,SM15C,SS510BF,GBP410,SM03C,MB1S,SL-10XX,SL302X,LL4148,SLM611,SLPESD3V3L1BA,SLESD5Z2V5,SMAJ5.0A,MMBTA05,SL1623TH,MMBTA06,SL20T65FH,SL14N120A,SL1623TL,BT131-600,BC847B,SLPESD12VL1BA,2SC2873,DSK310,SL40T65FL,ES3JC,S8050,ES3JB,BAV70,MMBT2907,MCR100-8,BCX51,BSN20,MMBD4148,BCX53,SL301X,BCX52,BCX55,SLM601,SM18C,SLESD5B5CU,BCX54,SLM600,SL322516MXXX,BAV20W,BCX56,KBP310,SL7603PXXXX,SL2302M,SLESD8H5.0CT5G,IRF640,SL6800C,SL7N65CN,SD12C,SLESD8D5.0C,S9013,SD24C,S9014,S9015,BC846B,SL10N06A,S9012,BT139-800,SL7N65CF,KBP3005,SL7N65CD,MCR100-6,BZT52C2V4,SL7N65CI,SM05C,2N3904,SL3139,SS8550,SMAJ170CA,US1MF,BAV21W,SL8820,S9018,2N3906,SD36C,MM3Z75,BZT52C43S,BTB10-600,MMBTA55,SLW611,RS1MF,SL3134K,SS110,SS32BF,SL11N65CD,1N4007W,SL11N65CF,SL6512B,SL252012MXXX,SL8052A,SL1629SH,MM1W3V3,SL1629SL,KBP410,SL20162712MXXX,SLPESD5V0L1BA,SS22B,1N4148WS,SL60T65FL,1N4148WT,DSK32,SS22F,MMBTA56,SLW601,SM4007PL,MMBTA44,SL6540BT,MMBTA42,SL49SM6M20P-20,SL252040MXXX,SL36N120A,SL12040BT,SL201626MXXX,SL50N06D,SL1629TH,SL50328MXXX,SL827,BT151,BT152,SL1629TL,SL49SM8M20P-20,SL49SM27M20P-20,SL826,DSK22,SL11N65CQ,SL49SM12M20P-20,SL49SM16M20P-20,S6MC,SL49SM10M20P-20,2N7002,M1F,SLPESD0201M05,MMBT6517,SL322540MXXX,GBLC08CI,2SC5824,ES1K,2SC4617,GBU610,SL6510B,BZT52B2V4,SL12N65F,SL1605SH,ULN2001,SL1605SL,MM1W330,BSS84,BZX84C2V4,DSK12,MM3Z2V0,SL9193MXXXX,BAW56,SL21N65CF,ES1AF,SLPESD0201M03,SL25T120FL,BTA24-800,ULN2003,ES2A,SS12F,6N137,SL15N65CD,6N136,SL15N65CF,LM2575,6N135,LM2576,SMAJ170A,SMDJ170CA,SL851,SL252027MXXX,S5MB,SL1605TL,SL503216MXXX,

选型指南 - SLKOR - 2022/10/9 PDF 中文下载

SLKOR（萨科微）功率器件/二极管/三极管/电源管理芯片/霍尔传感器/光耦选型指南

描述- 深圳市萨科微半导体有限公司，技术骨干来自清华大学和韩国延世大学，以新材料新工艺新产品引领公司发展，掌握国际领先的第三代半导体碳化硅功率器件技术。萨科微产品包括二极管三极管、功率器件、电源管理芯片等集成电路三大系列。萨科微从一家IP设计公司已发展成为集设计研发、生产制造、销售服务一体化的国家级高新科技企业,“SLKOR”品牌在半导体行业声誉日隆。萨科微官网在展示萨科微产品、宣传“SLKOR”品牌的同时，也开展行业的技术交流、思想碰撞、信息交互、资料查询等，逐渐成为半导体行业内协同发展最重要的平台之一。

型号- BZT52C43S,SS110,MCR00-8,SMCJ440CA,SL11N65CF,MC34063S,ZMM200,PC817,SL2310,SL3400,SL1629SH,SL252030MXXX,RS1A,RS1M,GBU4005,DB107S,1N4148WS,SMF5.0CA,DSK32,SL40T120FL,SL1625SH,MMBT4401,LM317,SL36N120A,SL75T65FL,SL50328MXXX,MMSZ5259B,SL22N120A,SL2301,BT151,GBP210,SL2302,BT169D,SL49SM8M20P-20,1SMB5921B,SL1613SH,S2MF,SL49SM12M20P-20,2N7002,SL201624MXXX,BTA26-800,SL322540MXXX,S3AB,SL4949,GBU610,BFG520,SL252016MXXX,BZT52B2V4,BZT52B43,SL1605SH,ZM4727,1SMA4777A,SL1609SH,BTA41-800,GBU6005,SL21N65CF,SL25T120FL,BTA24-800,SD05C,SL4275,ULN2003,SL1613TH,ES2A,SS525,6N137,6N136,SL15N65CF,WE05DF-BS,ULN2803,BT138-800,SL78LXX,2SC3357,LM2575,6N135,ZMM2V0,LM2576,BZT52C2V4S,US1A,SMF5.0A,SMAJ170A,SL10N120A,S5MB,RS2A,RS2M,MMBT5551,US1M,SL80N120A,S8550,S2AF,SMBJ5.0C,M1,SS22,BSS123,M7,SS310,ABS210,MMBT3904,MMBT3906,SMF58CA,BT137-800,MM1Z39B,ABS201,SMCJ440A,SMAJ5.0CA,BTA12-600,BAV99,SS32,SMBJ5.0,SL1623SH,SMBJ170CA,SL201612MXXX,BSS138,SL322512MXXX,1SMB5956B,FR101,ES2J,SS12,SL3N170AP,1SS181,FR107,SMF58A,78MXX,SL50T65FL,SM15C,SL1619SH,LL4148,MM1Z2V2B,SMAJ5.0A,MMBTA05,SL14N120A,BC817,SS8050,DB201S,SL1615SH,S1A,LM321,S5AB,SMCJ5.0CA,DSK310,GBU410,SS210,BCP51,SL40T65FL,BCP53,S8050,S1M,B772,SMBJ170A,SL28N65A,MMBT2222A,SLM601,BTA16-800,AMS1117-XX,ZM4761,TL431,SS52,NUP2105LT1G,DB101S,SL322524MXXX,SL1603SH,IRF640,SD12C,S9013,GBP2005,SL3407,BZT52C39,SL7N65CD,SMCJ5.0A,BZT52C2V4,SL50N120A,S3MB,MMSZ5221B,SS8550,SL3415,SMAJ170CA,GBLC05CI,BAV21W,LM358S,DB207S,SL80N65CT,1SMA4728A

选型指南 - SLKOR - 2022/10/9 PDF 中文下载

萨科微Slkor产品通过“加州65”测试公司实力不断提升

近日，经过加州65标准的一系列严格测试，萨科微半导体(www.slkoric.com)顺利过关，意味着萨科微的产品不含有被列入危害物质清单的化学物质，符合美国加州的法律要求，有利于维护国内外消费者的权益和保护公共健康。

产品发布时间 : 2024-07-26

【产品】额定电流3.0A的高效率低功耗肖特基二极管SS34，正向压降仅0.5V，广泛用于小电流电路

萨科微SLKOR肖特基二极管SS34具有低功耗、高效率、高电流能力、低VF、高浪涌电流能力和耐高温等特点。它被广泛应用于小电流的电路，有在开关电路中续流和反向隔离等作用，以实现电路的稳定工作和元件的保护。

产品发布时间 : 2023-08-16

SiC MOSFET桥式结构的栅极驱动电路

LS（低侧）侧SiC MOSFET在Turn-on和Turn-off时的VDS和ID变化方式不同。在讨论SiC MOSFET的这种变化对Gate-Source电压（VGS）的影响时，需要考虑包括SiC MOSFET的栅极驱动电路在内的等效电路。

设计经验发布时间 : 2024-07-19

【经验】与相同功率的Si MOSFET相比，SiC MOSFET导通电阻、开关损耗大幅降低且具有高温工作特性

在SiC MOSFET的开发与应用方面，与相同功率等级的Si MOSFET相比，SiC MOSFET导通电阻、开关损耗大幅降低，适用于更高的工作频率，另由于其高温工作特性，大大提高了高温稳定性。

设计经验发布时间 : 2022-12-03

Efficient Low Voltage MOSFET SL120N03R with a Vdss of 30V, a continuous drain current (Id) of 120A

SL120N03R is a low-voltage MOSFET produced by SLKOR Semiconductor Company. It is manufactured using advanced Trench technology, providing users with excellent gate charge and on-resistance (RDSon), thereby reducing communication and conduction losses. Therefore, this device is very suitable for AC/DC power conversion, load switching, and industrial power applications.

产品发布时间 : 2024-02-05

The Medium Voltage MOSFET MMBF170L with a Appropriate Drain-source Voltage (60V), Continuous Drain Current (300mA)

MMBF170L is an N-channel MOSFET known for its excellent product characteristics, including appropriate drain-source voltage (60V), continuous drain current (300mA), low on-state resistance (3Ω@10V, 500mA), and a lower threshold voltage (2.5V@ 250μA), making it an ideal choice for applications in power management, electric motor control, charging stations, and auxiliary electronic device control.

产品发布时间 : 2024-03-16

Good News! Slkor Products Passed the CP65 test

“Kinghelm, Connecting the World“, focuses on the field of microwave and radio frequency technology. Kinghelm‘s brand products include dual-mode Beidou GPS antennas, Bluetooth antennas, WiFi, Zigbee antennas, NB-IoT, LORA, UWB, Beidou B3 frequency antennas, 4G, 5G antenna series, and supporting RF connector terminals.

产品发布时间 : 2024-06-01

SLKOR Has the Internationally Leading Technologies on the SiC MOSFET and the Fifth-generation Ultra-fast Recovery Power Diode SBD

SLKOR Micro Semicon Co., Ltd., Headquartered in Shenzhen, Guangdong Province, China, has an elite technical team mainly from Korean Yonsei University and Chinese Tsinghua University. Driven by new materials, new processes, and new products, SLKOR has the internationally leading technologies on the SiC MOSFET and the fifth-generation ultra-fast recovery power diode SBD. Started as a fabless design house, SLKOR has developed as an integrated company with design, R＆D, manufacturing, sales, and technical services.

厂牌及品类发布时间 : 2023-11-24

Slkor Is Vigorously Expanding Its Overseas Markets, and Its Precise Marketing Efforts in Turkey Have Yielded Fruitful Results

Currently, Slkor has achieved significant success in the Turkish market, paving the way for greater international success for the company. Mr. Song Shiqiang, CEO of Slkor, stated, “Slkor is actively planning to expand into overseas markets, with Turkey serving as the starting point. We aim to gradually establish a strong brand image in the international market.“

厂牌及品类发布时间 : 2024-04-10

Excellent High-voltage MOSFET SL8N65CF with Drain-source Voltage of 650V, Continuous Drain Current of 8A

SL8N65CF has many notable features, including low gate charge, ultra-fast switching, and improved dV/dt capability. These characteristics enable the device to have faster response times and higher reliability, providing users with a better experience and performance. Whether in automotive applications or high-power applications, SL8N65CF can demonstrate its excellent characteristics and meet various needs.

产品发布时间 : 2024-03-07