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。
下图展示了最基本的栅极驱动电路和SiC MOSFET的等效电路。栅极驱动电路包括栅极信号（VG）、SiC MOSFET内部的栅极线路内阻（RG_INT）、封装的源极电感量（LSOURCE）、栅极电路局部产生的电感量（LTRACE）和外加栅极电阻（RG_INT）。
在等效电路图中，以栅极电流（IG）和漏极电流（ID）的方向为正，以源极引脚为基准来定义VGS和VDS的极性。
SiC MOSFET内部的栅极线路中也存在电感量，但相比LTRACE较小，因此可以忽略。
导通(Turn-on) / 关断(Turn-off)动作
为了理解桥式电路的Turn-on和Turn-off动作，以下对上述文章中提到的SiC MOSFET的电压和电流波形进行详细说明，这些波形与前述相同，结合等效电路图进行解释。
当LS侧的栅极信号施加正向VG使LS侧ON时，Gate-Source间电容（CGS）开始充电，VGS升高，当达到SiC MOSFET的栅极阈值电压（VGS(th)）以上时， LS的ID开始流动，同时从源极流向漏极的HS侧ID开始减少（波形图T1）。
接着，当HS侧的ID变为零且寄生二极管Turn-off时，中间点电压（VSW）开始下降，同时对HS侧的Drain-Source间电容（CDS）及Drain-Gate间电容（CGD）进行充电（波形图T2）。充电（LS侧放电）完成后，当LS侧的VGS达到指定电压值，LS侧的Turn-on动作完成。
Turn-off动作从LS侧VG OFF时开始，LS侧的CGS蓄积电荷开始放电，当达到SiC MOSFET的平台电压（进入米勒效应区）时，LS侧的VDS开始上升，同时VSW上升。
在这个时间点，大部分负载电流仍在LS侧流动（波形图T4），HS侧的寄生二极管还没有开始导通。LS侧的充电（HS侧放电）完成后，VSW超过输入电压（E），HS侧的寄生二极管Turn-on，LS侧的ID开始流向HS侧（波形图T5）。
LS侧的ID最终变为零，进入死区时间（波形图T6），当正向VG被施加到HS侧MOSFET的栅极信号时Turn-on，进入同步工作时间（波形图T7）。
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本文由雪飘梦飞转载自SLKOR官网，原文标题为:SiC MOSFET桥式结构的栅极驱动电路，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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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,SL21814,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,SL1609SH,DB307S,SL8N65F,SL05N06A,GBLC15CI,2SA812,SLESD8D15V,FMMT493,FMMT491,SMDJ170A,WE05DF-BS,2SC3357,SL78LXX,SL1609SL,SMF5.0A,US1AF,SL12020BT,MMBZ5221B,MMDL914,SL1609TH,SL05N06Z,RS2A,SL42764,SL1609TL,SL53N65CT,SS320BF,SLESD5Z7V0,FMMT489,RS2M,UMB10F,MM5Z2V0,GBLC03CI,MMBT5401,BT136-600,SS22,LMV321,SF1006DS,SL403,2N5401,SL6520B,SL21867,KBL4005,SL12030BT,UMB1F,SMF58CA,SS32,SMBJ5.0,2SK3018,SMBJ170CA,KBL410,BTA60-1200,GBLC12CI,US2AB,SL322512MXXX,WE24DF-B,SS12,SL3N170AP,SL503224MXXX,US2AF,SMF58A,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,SL27211DR,SLESD8D3V3,MMSZ5221B,TL431B,SL49SM26M20P-20,F1A,TL431A,DB207S,GBLC24CI,SS220F,2N7002E,BT136-800,F1M,SL85XXX,SL4822A,SL76N60CT,MC34063S,PC817,SL2328A,SL18N50F,BT137-600,MMBZ5262B,SM24C,SM36C,LMV358,RS3AB,SL27531,SS310C,SS310B,DB107S,SM12C,DB301S,SL40T120FL,KBL610,SL40N65CF,SL80N65CTL,SL12005B,GBP4005,SL49SM25M20P-20,SL22N120A,SL002N02K,SLESD5Z24,SL27525,SL27524,MMDT2222A,SL27523,US2MF,SL503225MXXX,SL252024MXXX,US2MB,SLESD3B5CM,SL05N10A,SL12P03S,C945,US2A,BFG520,SL252016MXXX,SL322532MXXX,SL2319A,SL40N65CT,SLESD5Z36,GBU6005,SL9013MXXXX,RS2AF,SL73XX,US2M,SS320F,ULN2803,SD20C,2SB1197K,SL4409N,ZMM2V0,SL12015B,SLESD5.0U035,US1A,SL10N120A,BTA08-600,SL0501,SL8205S,SL75T65FL1,US1M,BAS316,2SD965A,SL80N120A,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,SL27212,SM20C,RS5AB,SS520F,SL201630MXXX,MMDT3904,BSS138,BTA41-1600,FR101,MMDT3906,SL322525MXXX,SM4001PL,FR107,SMDJ5.0CA,BTA06-600,BZT52B51BS,SLPESD0402M18,SL322530MXXX,SL17010BT,SLPESD0402M16,WE12DF-B,SLPESD0402M12,SL15T65FL,MM5Z75,SMDJ5.0A,SL80N10,DB201S,SL54MXXXX,S1A,S5AC,SL12010B,2SD1624,S5AB,SL6206-XXMR,SMCJ5.0CA,B772,S1M,KBL6005,SMBJ170A,MMBT2222A,AMS1117-XX,SL75XX,SL322524MXXX,DB101S,GBP2005,S2A,BT138-600,2SC1815,SL10N10A,SLESD9B3.3S,SL4813A,S2M,SL002P02K,SL50N120A,SL9435A,SL4184,S10AC,SL80N65CT,1SMA4728A,BC857B,RS5MB,SLESD5Z15V,SL2005E,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,2SD1781,ES1JF,BZT52B43,1SS226,SL1613TL,SL305X,SS52F,SL27714,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,SL7888,SL303X,ABS201,MAC97A6,BAV99,SLM501,SL17025BT,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,SL2181,SLESD5Z2V5,MMBTA05,SL1623TH,SMAJ5.0A,MMBTA06,SL20T65FH,SL2184,SL14N120A,SL1623TL,SL2186,BT131-600,BC847B,SLPESD12VL1BA,2SC2873,DSK310,SL40T65FL,ES3JC,S8050,ES3JB,BAV70,SL27519,MMBT2907,MCR100-8,BCX51,SL27517,BSN20,MMBD4148,BCX53,SL301X,BCX52,BCX55,SLM601,SM18C,SLESD5B5CU,BCX54,SLM600,SL322516MXXX,SL27511,BAV20W,BCX56,SL27211E,KBP310,SL7603PXXXX,SL2302M,SLESD8H5.0CT5G,SL6800C,IRF640,SL7N65CN,SLESD8D5.0C,SD12C,S9013,SD24C,S9014,S9015,BC846B,SL10N06A,S9012,SL7N65CF,BT139-800,KBP3005,SL7N65CD,MCR100-6,BZT52C2V4,SL7N65CI,SM05C,2N3904,SL3139,SL27624,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,MMBTA56,DSK32,SS22F,SLW601,MMBTA44,SM4007PL,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,SL49SM10M20P-20,S6MC,2N7002,M1F,SLPESD0201M05,MMBT6517,SL322540MXXX,GBLC08CI,2SC5824,2SC4617,SL2009,ES1K,GBU610,SL6510B,BZT52B2V4,SL12N65F,SL1605SH,ULN2001,SL2014,SL2015,SL2136,SL1605SL,MM1W330,BSS84,BZX84C2V4,MM3Z2V0,SL9193MXXXX,DSK12,BAW56,SL21N65C
【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
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
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
当SiC MOSFET桥式电路开关时产生的电流和电压是怎样的？
当SiC MOSFET桥式电路开关时产生的电流和电压是怎样的？
技术探讨 发布时间 : 2024-07-20
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
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
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.“
原厂动态 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
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定制液冷板尺寸5mm*5mm~3m*1.8m，厚度2mm-100mm，单相液冷板散热能力最高300W/cm²。
最小起订量： 1片 提交需求>
可根据用户的MOSFET管进行参数检测出具报告，静态参数最大电压:7500V、检测最大电流6000A；动态参数最大电压:3300V、检测最大电流:4500A。该测试标准满足GB、IEC及行业标准等，具备可靠性评估及老化实验能力。
实验室地址： 西安 提交需求>
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