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离散式功率器件
对电源转换设计的重要性
刘欣 应用工程师 威世亚洲区业务发展部
VISHAY —电子元器件行业的先驱
Founded in 1962 by Dr. Felix Zandman, based on an innovative resistor technology. 1962 年由 Felix Zandman 博士创办，依靠创新的电阻技术起家
Since 1985, strategy of accelerated growth through focused R&D and synergistic acquisitions to become a true broad-liner on a worldwide basis. 从 1985 年起，通过专注于研发和协同收购实现加速增长的战略，使其成为一家全球范围内真正具有广泛产品线的供应商
Vishay components used today by virtually all major manufacturers of electronic products worldwide. 今天，全球几乎所有主要的电子产品制造商都在使用威世的元器件
KEY COMPONENTS FOR WINDMILLS & GRID POWER
风电应用的主要器件 THE VISHAY ADVANTAGE:威世优点
Long Life, High Reliability长寿命，高可靠性
High Power Density高功率密度 Safety Approvals 安规认证 Custom Design 可定制
Power capacitors 6
Discharge and Chopper Resistors放电和斩波电阻
Phase-leg thyristors, SCR / IGBT-modules 二极管，可控硅和IGBT模块
Snap-in & screw terminal electrolytic capacitors 螺栓式铝电解电容
Crowbar resistors 撬棒电阻
DC-Link film capacitor 直流支撑电容
AC-filter capacitor交流滤波电容
PRE-CHARGE RESISTOR 预充电电阻
Function:功能 - limit inrush current into DC-link cap. at initial switch-on 限制DC-Link电容上的浪涌 Typical requirements: 典型参数需求 - high single pulse energy capability 浪涌能量承受能力 - E = ½ C U^2 - C = 10 uF and U = 690V E = 5 J - small size (i.e. high energy density) 小体积高功率密度 - high voltage capability 高耐压
Suitable Vishay resistor series:适合的威世电阻系列 - G200 enameled wirewound 镀层绕线 - Z300 cemented wirewound 镀层绕线 - ZWS cemented wirewound 镀层绕线 - RH Al-housed wirewound 铝壳绕线 [email protected]
CHOPPER RESISTOR/AC FILTER 斩波/滤波电阻
Function:功能 - DC-voltage control 直流电压控制
Typical requirements: 典型参数需求 - high continuous power (=repetitive pulse energy) capability 可持续的高功率 - small size (i.e. high energy density) 小封装 - low inductance (i.e. high switching frequency) 低感值 - high voltage capability 高耐压
Suitable Vishay resistor series:适合的威世系列 - LPS300, mounting on heat sink, 300 W 需散热器辅助散热 - LPS600, mounting on heat sink, 600 W 需散热器辅助散热 - LPS800, mounting on heat sink, 800 W 需散热器辅助散热 - LPS1100, mounting on heat sink, 1100 W 需散热器辅助散热
CHOPPER RESISTOR/AC FILTER 斩波/滤波电阻
交流滤波或直流控制
-可持续高功率 -波纹结构快速散热 -玻璃镀层防潮结构 -小封装 高耐压
典型参数需求
适合的威世电阻系列
CROWBAR RESISTOR 撬棒电阻
Function:功能 - current and voltage limitation in case of high voltage ride through (HVRT) 低电压穿越限制电流和电压 Typical requirements:典型参数需求 -high single pulse energy capability 极高的单次能量吸收能力 - I = 10 kA – 20 kA - R = 10 mOhm – 50 mOhm - P = R I^2 = 1 MW – 20 MW - dt = 100 ms – 200 ms - E = 1/3 P dt = 33 kJ – 1.3 MJ - small size (i.e. high energy density) 小封装 - high voltage capability 高电压 Suitable Vishay resistor series:适合的威世系列 - ULDCR
crowbar topologies
- 电流检测 - 斩波和放电 - 滤波
适合的威世产品系列
特征：
- 功率金属板技术
- 高可靠性的设计
- 极低的热电动势
CURRENT SHUNT RESISTOR 分流电阻
SNUBBER CAPACITOR 缓冲电容
Function:功能 - reduce voltage and current spikes (limit dU/dt and dI/dt) in power semiconductor switching applications in order to protect semiconductors, reduce total losses and EMI 减小功率器件上的电压和电流尖锋，减少开关损耗和电磁干扰
Typical requirements:典型参数需求 - C = 0.47 uF and U = 1200-2000V
Suitable Vishay film capacitor series:适合的威世产品 - MKP 386M
VISHAY TODAY
AC-FILTER CAPACITOR FROM VISHAY ESTA 威世ESTA交流滤波电容
Function:功能 - reduce higher harmonics of line frequency 抑制网侧谐波干扰 Typical requirements and suitable Vishay ESTA caps: 典型参数需求 - U up to 760V and power up to 50 kVAr: PhMKDg - U up to 1400V and power up to 350 kVAr: PhMKPg - U up to 24 kV and power up to 800 kVAr: Pha… Vishay-ESTA also provides power caps. for HVDC power lines ESTA 也提供直流输电应用中的功率电容器
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TECHNICAL FEATURES of VISHAY ESTA DC-Power Capacitors Expected life time 超长寿命 20 years Operating time 工作时间 24 hrs/day Low failure rate 超低失效率 100 FIT Rated voltage 高额定电压 up to 4.0 kV Capacitance 容值 up to 8.0 mF Stored Energy / Weight 储能/重量 25 kJ / 125 kg Current capability 电流能力 750 Arms Impulse discharge current 脉冲放电电流 800 kA Inductance 寄生电感 < 40 nH Low series resistance 低阻抗 < 0.4 mΩ Environmentally friendly dry-type technology 干式的环保工艺
DFIG and converter circuit have to be protected from over-current and over-voltage in case of High-Voltage-Ride-Through (HVRT) grid faults, because the wind turbine cannot be disconnected from the grid during a HVRT according to power grid regulations
风机在低电压穿越时候不能离网，这样就需要一个放电回路保护主机
Package: Super MAGNA-A-PAK
Voltage: 1800-2200V_
Current : Up to 500A ( SCR ), 600A ( diode )
VSKD600series diodes module, I_FSM = 19 kA
VSKT500series _SCR module, I_FSM = 17.8 kA
VSKH430-20pbf thyristor/diode, I_FSM = 13 kA
CROWBAR DIODE AND THYRISTOR 撬棒二极管和晶闸管
New Die Designed: GT780C08BA
• 38mm diameter
•Back moly Ni-plated (solderable)
• Aluminum Top Metal
New MAP Power Block – Samples available 新 MAP Power 封装 – 可提供样品
This package offered by main competitor like Ixys, Eupec, Semikron
Features:特征 . Electrically Isolated Heats inking 和散热器绝缘 . Aluminum Nitride Insulator 氮化铝绝缘 . Compression Bonded Elements 高功率密度 . Metal Baseplate 金属基板 . Low Thermal Impedance 低热阻 for Improved Current Capability 高电流通过能力 Benefits:优点 . No Additional Insulation Components Required 不需要额外绝缘 . Easy Installation 安装方便 . No Clamping Components Required 不需要额外保护 . Reduce Engineering Time 设计方便
SINGLE 500A Thyristor 单颗 500A 晶闸管
GROWTH MARKETS
SUSTAINABILITY ENERGY EXPLORATION 石油探测
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High temperature operation高温 Long life 长寿命 High reliability 高可靠性 Safety approvals安规认证
Wet tantalum Capacitors 液态钽电容
High temperature chip resistor 高温贴片电阻
High temperature molded tantalum capacitors
高温钽电容 Electro-pyrotechnic initiator Thin Film chip resistors
点火电阻
Thin Film chip resistors 薄膜贴片电阻
液体钽电容在能源探测的应用
• Wet Tantalum
• Hermetic seal (tantalum / glass cover)玻璃密封
• Capacitance: 1.7uF to 10,000uF容值范围大
• Voltage Range: 6V to 125V电压范围广
• Temperature Range: -55oC to +200oC耐高温到200度
• Good Reliability, Long Shelf Life 长寿命高可靠性
• Small Package Size: T1, T2, T3, & T4 小尺寸
• Industry 工业级
Suitable Vishay Wet Tantalum series 合适的产品系列
•134D
•HE3
高温固态钽电容在能源探测的应用
TH3 Series系列: 高温150oC Target Markets: Automotive Powertrain, Vehicle Control &
Safety, Oil Exploration, Industrial 目标应用：汽车，铁路，石油探测和工业 Product Introduction: July 2006 成熟产品 Standard ESR values (293D) 标准低阻抗 Added 15 part numbers in 2007 多种耐压容值选择
高温薄膜电阻在能源探测的应用
FEATURES特性 • Operating temperature range: - 55 °C; + 215 °C 极高的工作温度 • Storage temperature: - 55 °C; + 230 °C 更高的存贮温度 • Gold terminations (< 1 μm thick) 金焊盘 • Temperature coefficient down to 15 ppm 低温漂 • Tolerance down to 0.05 % 高精度 • Load life stability: 0.35 % max. after 2000 h at 220 °C (ambient) at Pn 极高的长期稳定性
Suitable resistor series: PHT
