IGBT混搭SiC SBD續流二極管，在硬換流的場合，至少有兩個主要優勢：
沒有Si二極管的反向恢復損耗Erec
降低30%以上IGBT的開通損耗Eon
因此，在中小功率光伏與UPS等領域，誠乃性價比之選。
上個回合，我們已仿真分析過SiC MOSFET開關特性與寄生導通問題；這一次，我們將再次利用英飛凌強大且豐富的器件SPICE模型，同樣在Simetirx的仿真環境里，看看不同類型的續流二極管，對IGBT開通特性及Eon的影響。
特別提醒仿真只是工具，仿真無法替代實驗，仿真只供參考，切勿癡迷迷信。
選取仿真研究對象
01
IGBT：650V/50A/S5、TO247-4pin(免去發射極電感對開通的影響)
FWD：650V/30A/50A Rapid1二極管和650V/20A/40A SiC/G6/SBD二極管
Driver IC：1EDI20I12AF驅動芯片，隔離單通道，適合快速IGBT和SiC驅動
搭建仿真電路
02
如下圖1所示，搭建了雙脈沖仿真電路，溫度設為常溫。
驅動回路
驅動芯片(1EDI20I12AF)，對下管Q1(IKZ50N65ES5)門級的開關控制，與上管D1續流二極管進行換流。參照Datasheet的條件，驅動IC原邊5V供電及5V的控制信號，驅動IC輸出的驅動電壓15V/0V給到Q1的門級，驅動電阻Rgon和Rgoff都設置為23.1Ω，再假設20nH左右的門級PCB走線電感。
主回路部分
設置母線電壓400V，在器件外的上管、下管和母線附近各設置10nH，總共30nH(參照規格書中的雙脈沖測試條件，Lσ=30nH)。根據仿真中的驅動脈沖寬度與開關電流要求，設置雙脈沖的電感參數。
圖1：雙脈沖仿真電路圖
仿真結果分析
03
根據上述電路，通過選取不同的續流二極管D1的型號進行仿真，對比觀察Q1的IGBT在開通過程的變化。如圖2和圖3所示，在IGBT的開通過程中，當續流管D1的型號從650V/50A/Rapid1切換到650V/40A/SiC/G6/SBD后，開通電流Ic的電流尖峰(由D1的反向恢復電荷Qrr形成)，從虛線(50A/Rapid1)的巨大包絡，顯著變為實線(40A/SBD)的小電流過沖；同時電壓Vce在第二段的下降速度也明顯加快，使得電流Ic與電壓Vce的交疊區域變小。因此，體現在開通損耗Eon上，前者虛線(50A/Rapid1)為Eon=430uJ，降為實線(40A/SBD)的Eon=250uJ，占比為58%，即Eon降幅約40%。
Siemens B84101C-180
Juniper Networks Secure Services Gateway SSG SSG-5-SB-M
Brand New & Ready To Ship From A US Authorized Reseller
JUNIPER NETSCREEN 50 NS-050-001 FIREWALL UNIT
Juniper I-1OC48-SON-SMIR STM-16/OC-48 SONET SMF-IR GF
Juniper SFP-1OC48-SR
Juniper I-1OC48-SON-SMSR STM-16/OC-48 Sonet SMF SR
Juniper RE-1600-2048-S-C MODULE
Juniper JXE-1GE-SFP Module Enhanced EPIM 750-013599 GF
Juniper PE-2OC3-SON-SMIR Module GF
Juniper Networks (CX111-3G-BRIDGE) CX111 Cellular Br...
Buy this product now!
One-day shipping available
Juniper SSG-5-SH -256MB SECURITY SVCS GATEWA
great seller / free shipping / great service!!!
JUNIPER NETWORKS NETSCREEN RA 500 50-USER SSL VPN
NEW JUNIPER SSG-5-SB Juniper SSG 5 VPN/Firewall - 7 x 1
NEW JUNIPER JXM-1T1-S Juniper Single-Port T1 Mini Physi
NEW JUNIPER SRX-MP-1T1E1 Juniper SRX-MP-1T1E1 Interface
Agilestar - EX-SFP-1FE-LX - Juniper - New in Box
JUNIPER NETWORKS PB-4E1-COAX PIC FOR M160 NEW OPEN BOX
Juniper WLA422 Wireless Access Point IEEE 802.11a/b/g
Juniper Networks (SRX100B) SRX100 Services Gateway -...
Buy this product now!
One-day shipping available
Juniper Networks XFP-10G-L-OC192-SR1 740-014279 1310 nm
JUNIPER NETWORKS NS-5GT-111-A ADSL PLUS FIREWALL USED
USED TESTED LOT OF 5 UNITS 90 DAY WARRANTY
Juniper ISG 2000 FE8 NS-ISG-2000-FE8 for ISG 2000 tm
SFM-CF M160 Juniper Router
Juniper Netscreen NS-5000-8G 8 Port SFP NS5400 NS5200
$10M Cisco Inventory Same Day Shipping 1 Year Warranty
One-day shipping available
JUNIPER PE-1GE-SX-B
Juniper JXE-1GE-SFP-S Module JXE-1GE-SFP GF
Juniper STM-16/OC-48 SONET SMF-IR
One-day shipping available
Juniper P-4CHDS3 4-Port Channelized DS3 PIC MODULE
Juniper J6300 Router Includes 1 P.S. No Software
Juniper PB-1OC48-SON-SMSR 1-port SONET/SDH /T320/M160
SHIPS TODAY! Make an Offer! 1 YR WRNTY! 4+ Available
One-day shipping available
Juniper Networks M20 BASE M20BASE-AC Backbone Router
One-day shipping available
JUNIPER NETSCREEN NS-500ES-GB2-AC 4X NS-500-HG2-SX,
!! FREE 30 DAY WARRANTY !!
JUNIPER NETSCREEN NS-500ES-GB2-AC 4X NS-500-HG2-SX.
!! FREE 30 DAY WARRANTY !!
JUNIPER NETSCREEN NS-5GT-131-A WIRELESS 5GT FIREWALL
Juniper EX-SFP-10GE-LR Compatible LR SFP+ 10Gbase-LR LC
Expedited shipping available
JUNIPER DS3 710-000608
Juniper JXE-1GE-SFP-S Copper Enhanced ePIM
Juniper P-1GE-SX Gig. Card SX M20 M10i M5 M7i PE T320
SSG-5-SH Juniper Secure Services Gateways
Juniper T640-FPC2 Type2 Flexible PIC Concentrator T640
One-day shipping available
Juniper ERX-T3-3F 3 PORT UNCHANNELIZED T3 Juniper
SHIPS TODAY! * Massively Discounted* 1 YR WRNTY! 2 Avl
Juniper WLA422B -WLA422B 11A/B/G 2.4GHZ ACC
great seller / free shipping / great service!!!
Juniper DC Power Supply PEM Enhanced M160 SP466-1A
Juniper PB-1OC48-SON-SMSR 1-port SONET/SDH
$10M Cisco Inventory Same Day Shipping 1 Year Warranty
One-day shipping available
NEW! Juniper Networks NS-5GT-228 Wireless 802.11g VPN
Juniper Netscreen ISG 2000 NS-ISG-SX2 I/O Module GB2
NEW JUNIPER WLA422B Juniper WLA422 Wireless Access Poin
Juniper Networks PB-1OC48-SON-SMSR Module 2XAvailable
JUNIPER PB-1OC48-SON-SMSR - WARRANTY - NE
Juniper NS-500-HF2 Netscreen 500 Dual Port I/o
One-day shipping available
Juniper Networks Secure Services Gateway SSG 5 SSG-5-SB
Brand New & Ready To Ship From A US Authorized Reseller
Juniper Networks SRX100 Services Gateway - Secu SRX100B
Brand New & Ready To Ship From A US Authorized Reseller
New Juniper NS-5GT-011-A
New Juniper NS-5GT-108
Juniper Networks NSMXpress
Juniper NSMXpress ns-sm-a-bse
Juniper STM-16/OC-48 Sonet SMF IR PIC module 710-001283
One-day shipping available
Juniper P-4DS3-ATM2
Juniper PB-1GE-SX-B
Expedited shipping available
JUNIPER P-4CHDS3-QPP 750-005635 $500
Juniper Networks J2350-JH Wired Router
Juniper M5 W/RE-333-768 DC Power Supply
Juniper STM-16/OC-48 Sonet SMF IR PIC module 710-001283
One-day shipping available
Juniper STM-16/OC-48 Sonet SMF IR PIC module 710-001283
One-day shipping available
Juniper STM-16/OC-48 Sonet SMF IR PIC module 710-001283
One-day shipping available
Juniper STM-16/OC-48 Sonet SMF IR PIC module 710-001283
One-day shipping available
Juniper STM-16/OC-48 Sonet SMF IR PIC module 710-001283
One-day shipping available
Juniper STM-16/OC-48 Sonet SMF IR PIC / module
One-day shipping available
Juniper STM-16/OC-48 Sonet SMF IR PIC / module
One-day shipping available
Juniper MCS Miscellaneous Control System 750-001226
One-day shipping available
Juniper Sonet/SDH OC-192/STM-64 SR-2 PIC 750-003184
One-day shipping available
M160-FPC2-E JUNIPER M160 ENHANCED FLEX PIC IPC5DG0BAA
One-day shipping available
Juniper M160-FPC2-E High Bandwith Flexible PIC Module
Enhanced High Bandwidth Flexible PIC Concentrator
One-day shipping available
Enlarge
Juniper PE-4E3
Juniper Netscreen SA1000 SA 1000 Security Appliance GF
Juniper ES2-SRP-IOA Module
Juniper P-1OC12-SON-SMIR
Expedited shipping available
Juniper Networks M20/M40/M40e PIC P-1GE-SX-B
SSB-E-M20 Juniper Enhanced M20 System Switch Board NEW
Juniper 12-Port 10/100TX Ethernet PIC PE-12FE-TX
Juniper J4300 J4300BASE-AC Router Junos 8.0 R1.9
Juniper/Peribit SR-80 or WX 80 Sequence Reducer
Juniper PB-1GE-SX-B Module GF
Juniper CE1-FULL-I/O ERX 20 Port Channelized E1 Adapter
SHIPS TODAY! *87% Off Cisco List Price* 1 YR WARRANTY!
ECoptical - EX-SFP-10GE-LR - For Juniper - NIB
Juniper P-1GE-SX-B 1-port Gig Enhanced M20 M40 M10 M7i
2 Available -- Free Shipping
Juniper NS-IDP-200 Netscreen Intrusion Detection IDP200
Juniper SSG-5-SB-W-US SSG 5 Wireless Gateway Firewall
One-day shipping available
Juniper P-4E3 PIC for M20/M40
Juniper PB-4DS3-ATM M160 4PT ATM DS3 PIC, PB4DS3ATM 750
Juniper PB-1OC12-ATM-SMIR for M160/M40e
Enlarge
JUNIPER PB-1OC12-SON-SMIR STM-4/OC-12 SMF-IR M160
Enlarge
Juniper M20 RE-333-768 Routing Engine Card (just RE)
Juniper M20 SSB-E-M20 Card (card only) Internet Proc II
JUNIPER * 710-001889 * 4-PORT FAST ETHERNET PIC MODULE
4 x 100BASE - TX INTERFACE MODULE
Juniper Netscreen SSG-5-SH Secure In Juniper Box 256MB
Juniper I-1OC48-SON-SMSR, AF3340 1-PORT SONET/SDH
Juniper P-1GE-SX M40e M20
Juniper P-1GE-SX 1-Port Gig. Card M20 M10 M5 M7i
Juniper SRP-5G+ 5-Gbps Switch fab Mod ERX-5ECC-SRP NIB!
Juniper PE-10C12-SON-SMIR module for M10 new in box
Juniper jxu-6ge-sfp-s uPIM J4350 J6350 SSG520M SSG550M
Enlarge
Juniper 4-port Fast Ethernet Enhanced PIM JXE-4FE-TX-S
Juniper Dual-port Channelized T1/E1 PIM for J-Series
JUNIPER NETWORKS P-1OC12-ATM-SMIR SONET/SDH PIC REFURB
ERX-4T3ATM-IOA JUNIPER DS3 ATM I/O IOA
SHIPS TODAY! *World's Most Trusted Source* 1 YR WRNTY!
One-day shipping available
Juniper PB-1GE-SX-B module **1 Year Warranty**
Juniper NS-SA-3020A-CP NetScreen 3020 , 1 YEAR WARR.
JUNIPER CT3-3 and CT3/T3-3I/O ERX Set w/ 1Yr Warranty
Juniper Networks Peribit SM-500 WAN Accelerator WARRANT
UNIQUE ART STAND ''PEDISTAL'' JUNIPER WOOD 37 1/2 X24
Enlarge
Juniper / Netscreen 5GT NS-5GT-101 Firewall / VPN Appli
One-day shipping available
Juniper PB-4E3-ATM 4-Port ATM E3 PIC for M160 Router
180 Day Warranty - Free Shipping!!
One-day shipping available
Unisphere Juniper ERX1400 SRP-10-ECC 10-Gbps SRP module
Free Shipping - Make Offer!
Juniper NetScreen NS-IDP-50 Appliance Firewall
*1 Year Warranty* We buy and sell new and used Juniper!
One-day shipping available
Juniper P-4OC3-SON-SMIR PIC SONET Module 4OC3 M20/M40
1 YEAR WARRANTY! Ebay's #1 Source Cisco Foundry Juniper
JUNIPER NETWORKS NETSCREEN NS-025-001 FIREWALL VPN NEW
Juniper Netscreen NS-5000-8G 8 Port SFP NS5400 NS5200
90 Day Hardware Warranty - Free Shipping!
Juniper P-1OC12-ATM-SMIR P1OC12ATMSMIR
One-day shipping available
Juniper NS-IDP-50 Intrusion Detection & Prevention App
90 Day Warranty - Free Shipping!
Juniper PWR-M10i-M7i-DC-S M7i/M10i DC power supply
Free Overnight Shipping - 90 Day Warranty!!
Juniper PB-1OC12-ATM-SMIR 1Port ATM OC-12/STM4 PIC M320
90 Day Hardware Warranty - Free Overnight Shipping!
Juniper PB-1OC48-SON-SMSR OC48 M160 M40e M320
Juniper P-1OC12-ATM-SMIR 1 Port STM-4/OC-12 ATM M20/M40
1 YEAR WARRANTY! Ebay's #1 Source Cisco Foundry Juniper
Juniper P-1OC12-SON-SMIR PIC STM-4/OC-12 SONET M20/M40
1 YEAR WARRANTY! Ebay's #1 Source Cisco Foundry Juniper
Juniper M160 Router M160-FPC2-E Enhanced FPC
90 Day Warranty - Free Shipping!
Unisphere ( Juniper ) ERX 1400 Base 14 Chassis
90 Day Warranty
Juniper P-1OC12-SON-MM PIC 1-Port SONET/SDH OC12 MM
1-port SONET/SDH OC-12/STM4 PIC, Multimode
Juniper P-1OC12-ATM-SMIR 1-Port ATM
Juniper Netscreen 204 Firewall NS-204-007 / NS-204-001
ECoptical - EX-SFP-10GE-SR - For Juniper - NIB
JUNIPER NETWORKS SFM-M160-S W/ INET PROCR IPC3ZX0
JUNIPER PB-1OC12-ATM-SMIR STM-4/OC-12 ATM SMF-IR
JUNIPER NETWORKS - NetScreen - 25
JUNIPER NETWORKS - NetScreen - 25
JUNIPER NETWORKS NetScreen 25
Juniper NetScreen NS-50 Firewall
Juniper SSB-E-M20-U Warranty Ask for Qty NHS
Juniper P-1GE-SX Module M20 M40 GF
Juniper P-TUNNEL TUNNEL PIC M20 M40
在線咨詢 
