Powering the Future: The Crucial Role of Resistors in Electric Vehicle Charging
It’s
no secret. When it comes to vehicles, the future is electric. What once seemed like an elusive luxury is now becoming the standard in
automotive manufacturing. Many automakers are looking to join the likes
of Tesla and have committed to developing more cost-effective EV options
and increasing the size of their EV fleet. For example, Ford has
announced its initiative to produce more than two million electric
vehicles by 2026 and Volkswagen has invested $193 billion into their
plans to support the goal of making every fifth vehicle sold electric by
2025.
With the rise of electric vehicles on the roads comes the need for more charging infrastructure. In 2022, the United States introduced a nearly $5 billion investment into EV charging stations that will be put into place over the next five years. However, building the charging infrastructure is only part of the challenge – reducing the amount of time to fully charge is the other.
There are currently three charger types and speeds:
Level
1 chargers are commonly found in residential areas with a 120-volt AC
outlet. For Battery Electric Vehicles (BEV), it can take 40-50+ hours to
charge from empty to 80%. Plug-in Hybrid Electric Vehicle (PHEV) can
take 5-6 hours.
Level 2 offers higher-rate AC charging through 240V in residential applications or 208V in commercial applications. This is the common equipment for homes and public charging stations.
Direct Current Fast Charging (DCFC) offers rapid charging at heavy-traffic stations such as grocery stores and gas stations, with 400 V to 1000 V DC, and 20 minutes to one hour for a full BEV Charge.
No matter the charging speed, a critical element of the charging process is regulating the heat generated due to the battery charging current. Failure to regulate the heat can cause the battery to overheat and potentially result in catastrophic failure or fire. This is where Resistors come in.
Current Sense Resistors are a reliable and cost-effective solution for current control, which in turn controls the generation of heat in the vehicle battery while charging. One manufacturer, TT Electronics, has a wide range of current sense resistors that can be utilized in battery management systems.
“It is, of course, critical to have the right resistor technology, rating, and value,” said Stephen Oxley of TT Electronics. “But what is sometimes less understood is the need to consider secondary factors – like reliability, surge performance and consistency, and safety in the event of excessive overload.”
As accessibility to EV charging has increased, charging stations have begun to pop up everywhere, including gas stations and popular destinations on major highways, which are often exposed to the elements. This is where Wire wound resistors come in.
“Wire wound resistors in ceramic cases, like TT Electronics’ AEC-Q200 qualified WPRT Series, were once used only in industrial applications,” said Oxley. “But these resistors have found a new lease on life in battery management systems for electric vehicles due to their high surge and overload tolerance, safe and flameproof construction, and high reliability.”
Wire wound resistors offer critical transient protection from hazardous surges caused by lightning strikes, where up to 14,000-volt surges can occur. According to Oxley, TT Electronics’ axial leaded power wire wound resistors have been developed to meet these demanding specifications.
“In addition to standard products, TT Electronics has the unique flexibility to provide custom solutions that meet the specific requirements of applications,” said Oxley. “With the EV landscape rapidly evolving, it can be tricky for designers to select the right resistor for their applications, something with which TT Electronics can certainly help.”
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本文由咪猫转载自TT Electronics News，原文标题为:Powering the Future: The Crucial Role of Resistors in Electric Vehicle Charging，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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TT Electronics （TT）电阻器选型指南
Technology and Product Selector Guides Current Sense Resistors High Value/Voltage Resistors Surge/Pulse Resistors High Power Resistors Precision/Fusible Resistors High Reliability Resistors Temperature Sense & Thermal Management Resistors Zero-Ohm Jumper & General Purpose Resistors Colour Code for Band-marked Resistors
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2010,WP25S,WMO7S,BCN168RB,0612X,BCN,WP5SZI,WHS-UL,WIN SERIES,RCP,SQM5,SQM3,SQM2,EBW5216,N 0815,LRF SERIES,SQM7,4507,LRCS,4500,WMO5S,4501,4502,4503,4504,VRW37,4505,4506,RHVD08,RC70P,T0603,WRM SERIES,HDSC,CR,LVC SERIES,VRW25,DIV23 SERIES,ULW SERIES,RHVD15,LRMAPXXXX SERIES,4530,GHVC SERIES,ULR3N,4531,WDBR-UL,TJC,RHVD10,RC65,WMO3S,BPR50,WH10,ULR,EMC,LCS SERIES,ULW,WP-SZI SERIES,WHPC,PCF,WMO2S,RC55,4532,4533,4534,4535,4536,4537,PCR,HPDC SERIES,OAR,SQP SERIES,WPYP10,ULR1S,BCN10,WSHR,ULR25,WRM,1900 SERIES,W20,WMO1S,W22,W21,T0805,W24,W23,SQP7,SQP5,ULR2N,BPR30,SQP2,SQP3,SOT143 SERIES,RC70,LR SERIES,WSM,HVC,W31,W30,HVD,WHS2,WHS3,WHS5,W20 SERIES,WH25,WHS7,WP3SZI,BPC3,RC65P,HVP,WH50,LHVC,HR,PFC,WMO-S SERIES,VRW,MFP1,MFP2,BPR10,WA84F,EBW SERIES,MF-S,WP-SZI,BPC7,BPC5,HVP SERIES,MFC SERIES,WSM2,WSMHP,WSM3,GHVC2512,MF1/2S,WCM SERIES,BPC10,LOB-5,ULR15S,LOB-3,MFR5,LRF3W SERIES,MFR3,MFR4,HVD08,RHVD10A,WH100,RC SERIES,VRW 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SURFACE HEATING SYSTEM,消费者,MEDICAL,监护仪,工业
TT Electronics Welwyn电阻选型表
TT Electronics Welwyn电阻选型，包括精密电阻、金属合金功率电阻、电流检测电阻、MELF电阻、线绕高浪涌电阻、通用表面安装电阻等，提供多参数选择，最小尺寸达0204，最小电阻值达0.2mΩ，公差范围±0.01%~±10%
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产品型号
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品类
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Size
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Value(mΩ、Ω)
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Tolerance(%)
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HR0603F-100MJI
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High Value Surface Mounted Resistors
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0603
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100MΩ
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±5%
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选型表 - TT Electronics 立即选型
TT Electronics Launches LRMAK 4-Terminal Shunt Resistors, Offering Accurate Current Sensing for Automotive and Industrial Applications
TT Electronics today announced the launch of its new LRMAK 4-terminal shunt resistors. The low resistance metal alloy Kelvin shunt LRMAK is the latest addition to TT’s growing portfolio of current sense resistors with AEC-Q200 approval.
TT Electronics EBW5216 Busbar Shunt Resistors for High Current Measurements in The Hundreds of Amps Range
EBW5216 Busbar Shunt Resistors is an electron-beam welded resistance element sandwiched between large copper terminals with optional tin plating. The series offers values of 50 and 100µΩ at down to 1% tolerance, 150ppm/℃ TCR (measurement), 20ppm/℃ TCR (alloy), and ＜1µV/℃ thermal EMF.
电流检测电阻器.应用说明
TT ELECTRONICS - OAR,4LPW,WMHP20,OAR-5,2504,LRF3W,OAR5,LR(F),PLO,OARS-XP,CSL-5,OAR1,LRCS,OAR3,ULR,EBW,OAR-1,CSL,OAR-3,LOB,LR2512,WSMHP35,PWRL,LR1206,LR2010,W31,LRMA,OARS-1
TT Electronics Launches LRMAP1216 High Power Shunt Resistors
TT Electronics today announced the launch of their newest resistor - LRMAP1216. The metal alloy SMT shunt is the latest addition to TT’s growing portfolio of current sense resistors with AEC-Q200 approval.LRMAP1216 SMT shunt resistors, a compact complement to the existing LRMAP2726. Rated at up to 5W, the product is ideal for measuring the high currents found in motor control, power supply and battery management applications.
一个寻呼机
TT Electronics提供广泛的电阻产品，包括电流检测电阻、高功率电阻、高压电阻、脉冲/浪涌电阻和高精度电阻。产品应用于电池充电器、热插拔控制器、DC-DC转换器、动态制动、电机控制电路、电压降、X射线电源、高压电源、静电喷涂设备、线路保护、电路保护、除颤器、负载电阻、输入分压器、称重平衡器、飞行计算机和信号调节等。
TT ELECTRONICS - RESISTORS,大功率电阻器,电阻器,高精度电阻器,PULSE RESISTORS,浪涌电阻器,HIGH POWER RESISTORS,电流感测电阻器,高压电阻,HIGH PRECISION RESISTORS,SURGE RESISTORS,CURRENT SENSE RESISTORS,脉冲电阻器,HIGH VOLTAGE RESISTORS,医学,电池充电器,MEDICAL,高压电源,WEIGHING BALANCES,电机控制电路,脉冲电路,飞行计算机,泄放电阻器,动态制动,DC-DC CONVERTERS,DEFIBRILLATORS,MOTOR CONTROL CIRCUITS,INRUSH LIMITING,X射线电源,DC-DC转换器,称重天平,工业,X-RAY POWER SUPPLIES,HV POWER SUPPLIES,BLEED RESISTORS,涌流限制,INPUT DIVIDERS,BURDEN RESISTORS,汽车工业,HOT SWAP CONTROLLER,PULSE CIRCUITS,VOLTAGE DROPPER,FLIGHT COMPUTERS,热插拔控制,DYNAMIC BRAKING,除颤器,负载电阻器,HEATERS,INDUSTRIAL,AUTOMOTIVE INDUSTRIES,输入分频器,电压降压器,BATTERY CHARGER,加热器
ROHM’s New Shunt Resistors Contribute to Greater Miniaturization in Automotive, Consumer, and Industrial Equipment Applications
ROHM has added three new products featuring a rated power of 5W in resistance values of 0.5mΩ, 1.0mΩ, 1.5mΩ to the 2512-size (0.25inch × 0.12inch) / 6432-size (6.4mm × 3.2mm) PMR100 series of standard type metal plate shunt resistors designed for motor control and power circuits in automotive, consumer, and industrial equipment applications.
AQL（汽车用陶瓷封装绕线电阻器）
该资料介绍了AQL系列陶瓷封装绕线电阻器，适用于汽车、电动汽车（EV）、混合动力电动车（HEV）和插电式混合动力电动车（PHEV）。这些电阻器用于控制通过功率继电器组件的浪涌电流。资料提供了产品的一般规格、特性、测试条件以及尺寸信息。
RARA - 陶瓷封装绕线电阻器,CERAMIC ENCASED WIRE WOUND RESISTORS,线绕、陶瓷封装电阻器,WIRE WOUND, CERAMIC ENCASED RESISTORS,AQL30,AQL40,AQL20,AQL100,AQL MODELS,AQL20S,AQL,AQL80,AQL50,AQL60,AUTOMOBILE,混合电动汽车,车载,PHEV,VEHICLE,PHEV公司,EV,电动车,HYBRID ELECTRIC VEHICLE,ELECTRIC VEHICLE,电动汽车,HEV,插电式混合动力汽车,PLUG-IN HYBRID ELECTRIC VEHICLE,混合动力汽车,汽车用品
模制表面安装绕线电阻器规格书
该资料介绍了Welwyn Components生产的WSM系列表面贴装绕线电阻器。这些电阻器适用于自动拾取和放置，可直接替换轴向电阻器。所有部件均为无铅设计，符合欧盟指令2011/65/EU（RoHS3）。
TT ELECTRONICS - WOUND RESISTORS,绕线电阻器,WSM,WSM1,WSM SERIES,WSM2,WSM3
ARH/ARV（汽车用金属包覆绕线电阻器）
该资料介绍了ARV（垂直型）和ARH（水平型）金属铠装线绕电阻器，适用于电动汽车（EV）、混合动力汽车（HEV）和插电式混合动力汽车（PHEV）。这些型号具有挤压铝外壳，提供坚固耐用的保护。产品规格包括额定功率、阻值范围、公差、温度系数等。
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TT Electronics Launches LRMAH2512 High-Power Shunt Resistors, Offering Values Down to 200µΩ at 1% Tolerance
TT Electronics has unveiled its latest innovation – the LRMAH2512 surface-mount technology (SMT) shunt resistors. This compact resistor boasts a robust 6W rating, making it the perfect solution for precision current measurements in motor control, power supply, and battery management applications.
10 Tips for Designing with High Voltage Resistors
This article presents ten tips based on support given over many years to designers needing high-voltage resistors, not just in medical, but also in the industrial, transportation, and scientific sectors.
电子商城
品牌：TT Electronics
品类：Wirewound Power Radial Terminal Resistors
价格：￥32.0016
现货： 504
品牌：TT Electronics
品类：High Power MELF Resistors
价格：￥0.3305
现货： 9,000
品牌：TT Electronics
品类：High Power MELF Resistors
价格：￥0.5375
现货： 9,000
品牌：TT Electronics
品类：High Power MELF Resistors
价格：￥0.5375
现货： 9,000
品牌：TT Electronics
品类：High Power MELF Resistors
价格：￥0.5375
现货： 9,000
品牌：TT Electronics
品类：High Power MELF Resistors
价格：￥0.5375
现货： 9,000
品牌：TT Electronics
品类：High Power MELF Resistors
价格：￥0.3305
现货： 9,000
品牌：TT Electronics
品类：High Power MELF Resistors
价格：￥0.3305
现货： 9,000
品牌：TT Electronics
品类：High Power MELF Resistors
价格：￥0.5375
现货： 9,000
品牌：TT Electronics
品类：High Power MELF Resistors
价格：￥0.5375
现货： 9,000
现货市场
品牌：TT Electronics
品类：Wirewound Power Radial Terminal Resistors
价格：￥29.9250
现货：22,389
品牌：TT Electronics
品类：Low Resistance Metal Alloy Resistors
价格：￥0.7268
现货：160,000
品牌：TT Electronics
品类：Low Resistance Metal Alloy Resistors
价格：￥0.7268
现货：107,900
品牌：TT Electronics
品类：Wirewound Power Radial Terminal Resistors
价格：￥7.1649
现货：814
品牌：TT Electronics
品类：Wirewound Power Radial Terminal Resistors
价格：￥16.0569
现货：42
品牌：TT Electronics
品类：Wirewound Power Radial Terminal Resistors
价格：￥17.9550
现货：7
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可定制ATP TE Cooler的冷却功率：40~200W；运行电压：12/24/48V(DC)；控温精度：≤±0.1℃； 尺寸：冷面：20*20~500*300；热面：60*60~540*400 （长*宽；单位mm）。
最小起订量： 1 提交需求>
可定制ATA TE Cooler的冷却功率范围：35~800W；控温精度：≦±0.1℃；尺寸：冷面：20*20到500*300；热面：60*60到540*400 （长*宽；单位mm）。
最小起订量： 1 提交需求>
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授权代理品牌：部件、组件及配件
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