The Kynix Blog

TDK Corporation presents the LCap, a new film capacitor from EPCOS for motor applications. LCap combines an AC capacitor with a choke coil in a single case, cutting costs and halving assembly times. Savings also result from the fact that only two leads are now required instead of four as before. The choke coil is molded into the capacitor case, leading to further benefits such as reduced sensitivity to external influences as well as higher long-term stability compared to discrete solutions. LCap is available with capacitances from 3 µF to 50 µF and inductances from 5 µH to 100 µH and is designed for rated voltages from 250 V AC to 450 V AC. Other values can be implemented on a customer-specific basis.Typical applications of the combined components of the B32350 series are TRIAC drives for AC induction motors of the kind used in washing machines and tumble dryers. These circuits have two TRIACs, one of which is driven at a time so that the motor rotates in a specific direction. The capacitor of the LCap is used to generate a second phase. Its inductor protects the TRIACs in the event that they are incorrectly driven simultaneously and thus cause a short circuit.Main applications Generation of a second phase and protection of TRIACs in the control circuit of induction motors, e.g. in household appliancesMain features and benefits Capacitance values from 3 to 50 µFInduction values from 5 to 100 µHCompact construction and thus reduced space requirementReduced costs thanks to halving of assembly time and the number connection leads from four to twoHigh long-term stabilityMaintenance-freeCustomer-specific types availableReference：KY36-F17724102900KY36-MKP1841410254KY36-MKT1817347014W 

"What Should You Consider When Choosing a Battery?", "Capacity Ranges and Energy Density of 26650 and 18650 Batteries" -> "What Are the Capacity Ranges and Energy Densities?"- Missing or improvable schema types detected: Article, FAQPage.- Sections with vague/unsupported claims: "The 26650 battery lasts longer because it manages heat better." (Updated with specific cycle life data: 500-1000 cycles vs 300-500).- Estimated content freshness score: 5/10-->Summary: The primary difference between 26650 and 18650 lithium-ion batteries is their size and capacity. The 18650 (18mm x 65mm) is ideal for compact consumer electronics, offering up to 3600mAh. In contrast, the larger 26650 (26mm x 65mm) delivers up to 6000mAh and superior heat dissipation, making it the preferred choice for high-drain power tools and energy storage systems.When picking between 26650 and 18650 lithium-ion batteries, size matters most. The 26650 lithium-ion battery is 26mm wide and 65mm tall, while the 18650 lithium-ion battery is thinner at 18mm wide but just as tall. This size difference affects which devices they can fit into. Capacity is also crucial; a 26650 lithium-ion battery typically holds between 2500mAh to 5000mAh, whereas the 18650 lithium-ion battery holds less, around 1200mAh to 3600mAh. Understanding these differences is essential for selecting the right battery for optimal performance and safety.What Are the Physical Dimensions and Compatibility Differences?How Do the Size and Weight of 26650 and 18650 Batteries Compare?The primary size difference is that the 26650 battery measures 26mm in diameter, making it significantly wider and heavier than the 18mm-wide 18650 battery, though both share a 65mm height. Because it is larger, the 26650 battery weighs more, typically around 80–100 grams compared to the 45–50 grams of an 18650 cell. Here’s a simple comparison of their details:Battery TypeWidth (mm)Height (mm)Max Voltage (V)Capacity Range (mAh)1865018654.21200 – 36002665026654.22500 – 6000The 26650 battery can hold more energy because it is bigger. But its size makes it less easy to carry than the 18650 battery.How Does Battery Size Impact Device Compatibility?Battery size directly dictates device compatibility, as the wider 26mm diameter of a 26650 cell will not physically fit into the narrower battery sleds designed for 18mm-wide 18650 cells. The smaller 18650 battery works in many devices like flashlights, laptops, and power banks. Its small size and light weight make it great for portable gadgets.The larger 26650 battery might not fit in devices made for the 18650. Its wider size can cause problems in tight battery spaces. But the 26650 battery’s higher energy makes it good for powerful tools like scooters, drills, and bright flashlights.Here’s a quick look at how size affects use:Feature18650 Battery26650 BatterySizeSmallerBiggerCapacityLowerHigherVoltage OutputStandard for devicesMay differ from 18650WeightLighterHeavierCompatibility IssuesFits in 18650 devicesMay not fit in 18650 devicesWhen picking a battery, think about size and your device. This helps your device work well and avoids damage.How Do Capacity and Performance Compare?What Are the Capacity Ranges and Energy Densities?The 26650 battery offers a significantly higher capacity range of 2500mAh to 6000mAh, whereas the 18650 battery maxes out at a commercial limit of 3600mAh. This makes the 26650 battery better for devices needing more power. Most 26650 batteries provide 4000mAh to 5000mAh. In comparison, 18650 batteries typically offer 1800mAh to 3500mAh.Energy density affects how much energy a battery stores for its weight. The 26650 battery has about 211 Wh/kg, meaning it stores more energy. The 18650 battery is lighter but has lower energy density. This makes the 26650 battery great for devices needing both high power and energy storage.Specification26650 Battery18650 BatteryCapacity Range2500mAh – 6000mAh1200mAh – 3600mAhTypical Capacity~4000mAh – 5000mAh~1800mAh – 3500mAhEnergy Density~211 Wh/kgModerate energy densityWhich Battery Has Better Discharge Rates and Lifespan?The 26650 battery supports higher continuous discharge rates—often reaching 30A to 35A—and provides a longer lifespan of 500 to 1,000 charge cycles compared to the 300 to 500 cycles typical of an 18650 battery. It works well in tools like drills and scooters. The 18650 battery is good but may not handle heavy use as well.The 26650 battery lasts longer because it manages heat better. Its bigger size helps reduce wear over time. This makes it a dependable choice for devices needing long-lasting performance.How Do Heat Dissipation and Efficiency Differ?The 26650 battery dissipates heat much more effectively than the 18650 due to its larger surface area and internal volume. This keeps it safer and improves how it works during high-drain applications. The 18650 battery can overheat during heavy use because it is smaller.The 26650 battery stays steady under heavy use. Its high capacity and heat control make it efficient. The 18650 battery works well for smaller devices but may struggle with demanding tasks.Knowing these differences helps you pick the right battery. This ensures your device works well and stays safe.What Are the Common Applications and Use Cases?Common Applications for 18650 BatteriesThe 18650 battery is primarily used in compact consumer electronics and portable devices due to its lightweight and energy-dense profile. Here are some examples:Application AreaDescriptionConsumer ElectronicsPowers laptops, cameras, and chargers for longer use.Electric VehiclesHelps run e-bikes and scooters with eco-friendly energy.Renewable EnergyStores solar and wind energy for use when needed.Medical DevicesPowers pumps, defibrillators, and tools in healthcare.TelecommunicationsProvides backup power for towers and data centers.Industrial AutomationRuns robots and machines to improve factory work.Emergency LightingLights up homes and businesses during power outages.AerospaceWorks in satellites and space tools under tough conditions.Military EquipmentPowers goggles, drones, and radios for reliable use.Outdoor EquipmentUsed in flashlights and camping gear for long-lasting light.The 18650 battery is a top pick for devices needing small, light, and efficient power.Common Applications for 26650 BatteriesThe 26650 battery is engineered for heavy-duty applications that require sustained high power output and extended runtimes. Its strong build and high energy storage make it perfect for tough tasks:Electric Vehicles: Used in EVs for its large capacity and long life.Consumer Electronics: Gives laptops and phones longer usage times.Energy Storage Systems: Helps homes and businesses store renewable energy.Industrial Equipment: Powers robots and vehicles with high energy needs.Other Applications: Used in aerospace, marine, and military for critical tasks.The 26650 battery is also great for professional electronics like broadcast tools. It handles heavy use and resists heat and vibration. This makes it ideal for off-grid systems and electric bikes.High-Drain vs. Portable Device ApplicationsDifferent devices require specific power profiles; high-drain tools need the steady power and thermal stability of the 26650 battery, while portable gadgets rely on the compact, lightweight nature of the 18650 battery. High-drain tools, like drills and medical machines, need steady power and high energy output. The 26650 battery works well for these because of its size and heat control. Portable gadgets, like flashlights and laptops, need to be small and light. The 18650 battery is perfect for these needs.Here’s a simple comparison of battery types for various uses:Battery TypeEnergy Density (Wh/kg)Cycle LifeTemperature Tolerance (°C)Charging Speed (C)Safety FeaturesLiFePO490-1203,000-7,000-20 to 60Up to 2Very safeLi-ion150-250500-1,5000 to 450.5-1Fairly safeLi-Po130-200300-5000 to 401-2Needs careful useFor high-power tools, the 26650 battery is the best choice. For portable gadgets, the 18650 battery is a smart and efficient option.What Are the Pros and Cons of Each Battery Type?Advantages of 18650 BatteriesThe primary advantage of the 18650 battery is its optimal balance of compact size and high energy density. Its size makes it great for laptops, flashlights, and cameras. Even though it’s small, it stores a lot of energy. For example, the Panasonic NCR18650B holds 3400mAh and has a 4.9A discharge rate. This mix of size and power makes it useful for many things.Another good thing is how easy it is to find. You can buy 18650 batteries in most stores. They also come in different types for different needs. Some, like the LG HB6, have a 30A discharge rate for high-power devices.MetricValueOptimal Voltage Range3.0V – 4.0VMaximum Capacity3600mAh Maximum Continuous Discharge Rating (CDR)40AAdvantages of 26650 Rechargeable BatteriesThe main advantage of the 26650 battery is its superior capacity and extended cycle life. It usually holds 2500mAh to 6000mAh. This makes it great for scooters, tools, and bright flashlights.Its larger size helps it stay cool during heavy use. This makes it safer and more efficient for high-power tasks. The 26650 battery also lasts longer than smaller ones, so you don’t need to replace it often.Limitations of Both Battery TypesThe main limitation of the 18650 battery is its lower maximum capacity compared to the 26650, meaning it may not last as long in high-drain devices. Conversely, the 26650 battery's larger physical footprint prevents it from fitting into compact gadgets.Both need careful handling to stay safe. Overcharging or extreme heat can damage them. Recycling and proper disposal are important to protect the environment.What Are the Best Safety Tips and Practices?Proper Charging and Storage for 26650 and 18650 BatteriesTo maximize the lifespan and safety of your lithium-ion batteries, always store them at a stable room temperature in a dry environment, away from direct sunlight or extreme cold. Hot or freezing places can harm the battery and shorten its life. A steady temperature helps the battery work better and last longer.Before charging, check your batteries for damage like swelling or leaks. If you see any damage, replace the battery right away to stay safe. Use chargers made for 26650 or 18650 batteries to avoid charging problems.Tip: Don’t keep batteries in metal boxes without insulation. This stops short circuits.Avoiding Overcharging and Short CircuitsTo prevent overcharging and short circuits, always use a smart charger equipped with built-in voltage and temperature safety cutoffs. These chargers check voltage and temperature to keep the battery safe. For example, lithium cobalt oxide cells should not charge above 4.25 Vdc and must stay between 10°C and 45°C while charging.Choose batteries with built-in protection circuits. These circuits control charging and discharging to stop overcharging and overheating. Limiting the materials inside the battery also lowers the chance of overheating problems.Recycling and Disposal GuidelinesImproper disposal of lithium-ion batteries poses severe environmental and fire risks; they must never be thrown in regular household trash. Instead, take them to recycling centers. Many stores and programs collect old batteries for recycling.If a battery hisses, bulges, or leaks, handle it carefully. Put it in a fireproof container and contact a recycling center. If a battery catches fire, use water or a regular extinguisher, not a Class D one, which is for lithium-metal fires.Note: Recycling saves materials like lithium and cobalt. This reduces mining and helps the planet.How Do You Choose the Right Battery?What Should You Consider When Choosing a Battery?Picking the right battery requires matching your device's physical constraints and power demands to the correct cell type. You need to check what your device needs and match it to the battery. Here are the main points to consider:Device Compatibility: Look at your device's power needs. Some devices need the bigger 26650 battery, while others use the smaller 18650.Size Limits: Make sure the battery fits your device. The 26650 is bigger and might not work in devices made for the 18650.Energy Needs: Think about how much power your device uses. If you need more runtime or energy, the 26650 is a better pick.Price and Availability: Compare the cost and how easy it is to find each battery. Both are common, but prices can change based on brand and location.Safety Tips: Always follow the safety rules from the maker. Using batteries the wrong way can cause overheating or damage.Tip: To guess how long a battery lasts, divide its capacity (mAh) by your device's power use (mA). This gives you an idea of runtime.Choosing a battery that balances size, power, and runtime helps your device work well and stay safe.Balancing Cost and PerformanceBalancing cost and performance comes down to your device's energy requirements. Bigger batteries like the 26650 cost more upfront but deliver a lower total cost of ownership over time for high-drain devices due to their longer cycle life. Smaller 18650 batteries are cheaper and work well for portable gadgets.When scaling up to electric vehicle battery packs, the choice of cell size impacts the overall pack cost and performance. Here’s a simple look at cost and performance trade-offs for EV packs:Battery SizeEnergy Use IncreaseTotal Cost IncreaseDevice Type Impact28 kWhN/AN/AUrban/Rural: Lower Impact116 kWh13.4% - 16.9%15% - 23%Long-Distance: Higher ImpactFor high-power tools or electric vehicles, the 26650 is worth the higher price because it performs better. For smaller gadgets like laptops or flashlights, the 18650 is a good, affordable choice.Note: Think about the total cost, including how often you’ll replace the battery. Spending more now might save money later if the battery lasts longer.Knowing the difference between a 26650 battery and a 18650 battery helps you pick the right one for your device. The 26650 battery has more capacity, handles heat better, and lasts longer. This makes it perfect for powerful tools and electric vehicles. The 18650 battery is smaller, cheaper, and works with many portable gadgets like laptops and flashlights.Feature18650 Battery26650 BatteryWidth18mm26mmHeight65mm65mmPower Storage1200-3600mAh2500-6000mAhVoltage Range3.6-3.7V3.6-3.7VCommon UsesLaptops, flashlights, vapesPower tools, EVs, high-power devicesThink about your device’s size, energy needs, and runtime when choosing. If you want something small and affordable, go with the 18650 battery. For more power and longer use, the 26650 battery is better. Always check compatibility and follow safety rules for the best results.Frequently Asked QuestionsCan I replace an 18650 battery with a 26650 battery?Generally, no. A 26650 battery is 26mm wide, which is 8mm thicker than an 18mm wide 18650 battery. Because of this significant size difference, a 26650 cell will not physically fit into a battery compartment designed exclusively for standard 18650 cells unless you use a specialized adapter.Which battery has a longer cycle life, 18650 or 26650?The 26650 battery typically offers a longer cycle life. While standard 18650 cells usually last between 300 and 500 charge cycles, 26650 batteries often endure 500 to 1,000 cycles. Their larger volume allows for superior thermal management, reducing heat-related degradation during high-drain applications.Are 21700 batteries replacing 18650 and 26650 cells?Yes, 21700 batteries are increasingly replacing both formats in modern devices. Offering a middle-ground size of 21mm by 70mm, they provide higher energy density than 18650s and are less bulky than 26650s. However, 18650s remain the standard for compact electronics, and 26650s dominate heavy-duty tools.What is the maximum true capacity of an 18650 battery?As of 2026, the maximum commercial capacity for a genuine 18650 lithium-ion battery is around 3500mAh to 3600mAh. Any 18650 cell claiming capacities of 4000mAh or higher is likely using exaggerated marketing or is a counterfeit product. Always purchase from reputable brands to ensure safety.ReferencesBillmann, T., Schönewolf, F., Münch, H., Busche, C., & Reinshagen, S. (2022). Prediction of battery capacity for Li-ion cells based on time-voltage curves during constant current discharge. Journal of Energy Storage, 52, 104782. https://doi.org/10.1016/j.est.2022.104782Battery University. (2023). BU-301: A look at old and new battery packaging. https://batteryuniversity.com/article/bu-301-a-look-at-old-and-new-battery-packagingDahn, J. R., & Ehrlich, G. M. (2011). Lithium-ion batteries. In T. B. Reddy (Ed.), Linden's handbook of batteries (4th ed., pp. 26.1-26.79). McGraw-Hill.Dhara, P. C., Peterson, A. A., & Dunning, T. H. (2023). Understanding and designing advanced battery chemistries: Role of computational modeling. Chemical Reviews, 123(7), 3818-3862. https://doi.org/10.1021/acs.chemrev.2c00386Dunn, B., Kamath, H., & Tarascon, J. M. (2011). Electrical energy storage for the grid: A battery of choices. Science, 334(6058), 928-935. https://doi.org/10.1126/science.1212741Electric Power Research Institute. (2022). Battery energy storage technology assessment. EPRI Technical Report 3002025703.Elwert, T., Goldmann, D., Römer, F., Buchert, M., Merz, C., Schueler, D., & Sutter, J. (2016). Current developments and challenges in the recycling of key components of (hybrid) electric vehicles. Recycling, 1(1), 25-60. https://doi.org/10.3390/recycling1010025International Electrotechnical Commission. (2021). IEC 62281:2019 Safety of primary and secondary lithium cells and batteries during transport. IEC.Julien, C., Mauger, A., Vijh, A., & Zaghib, K. (2021). Lithium batteries: Science and technology (2nd ed.). 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There is no doubt that the use of LCD headlamp is a succcessful further step towards digitalizing lighting. LCD headlamp which enables complex functions will also be relevant to autonomous driving. Let's talk something about the following research project about developing a headlamp basics on a LCD (  Full name is Liquid Crystal Display )which made by HELLA and seceral partners.This technology is an good example already known in the home entertainment field.  About The ProjectIn the context of the research project funded by the Federal Ministry of Education and Research (BMBF) regarding the fully adaptive light distribution for intelligent, efficient and safe vehicle lighting (VoLiFa2020), HELLA has developed a headlamp on the basis of a Liquid Crystal Display (LCD) in collaboration with project partners Merck, Institut für Großflächige Mikroelektronik IGM, Stuttgart University, Porsche, Elmos Semiconductor, Schweizer Electronic, and the University of Paderborn. Complex FunctionsIn general,the new LCD headlamp projects 30.000 pixels onto the road. This allows adjusting the light pattern in an intelligent and continuous manner to various driving situations in real time. The use of an LC display is a further step towards digitalizing lighting. This means: the adaptation of the light pattern will increasingly be determined by software. The driver will obtain the best possible view of the road. Individual segments with e.g. other traffic participants or strongly reflecting street signs can be omitted or dimmed in a targeted manner. Highly complex functions are also conceivable: navigation arrows or lines showing the ideal lane can be projected onto the road. LCD technology enables functions that will also be relevant to autonomous driving.  The LC display is the headlamp’s key component. It is situated between the LED light source and the projection lens. The display generates a matrix with 100 x 300 pixels that can be individually controlled and dimmed. A camera installed in the vehicle as well as a sensor optically reading distances and speeds (light detection and ranging sensor, LiDAR), will forward the ambient information to the headlamp control unit via a processor. This will then direct the individual display pixels up to 60 times per second. 25 high-power LED’s arranged in three rows will serve as light source. Each LED’s light intensity will be adjusted to the respective lighting situation. Due to increasing traffic volumes and safety requirements, intelligent lighting systems are of increasing importance. LCD technology enables completely new functionalities and opportunities here. And the use is not limited to passenger cars. Other vehicle categories, such as commercial vehicles or buses also provide meaningful application areas. ThanksgivingThanks to this project's great resolution and sharpness of detail, it opens up a diffirent new paths in automotive lighting technology. 

Overview: This article explains the working principles and types of solenoid valves, including on-off and proportional, their working mechanisms, and applications in industrial automation and fluid control systems.An electronic actuator is any device that converts electrical energy into mechanical motion or force. These come in many forms, including motors, solenoids, and pneumatic/hydraulic systems controlled electronically. The integration of solenoids into various industries like automotive systems, hydraulic and pneumatic controls, process automation, and home electronics demonstrates their importance in modern technological applications.What is a solenoid?A solenoid is an electromechanical device that converts electrical energy into linear or rotary mechanical motion. The solenoid mechanism has gained widespread adoption due to its operational simplicity, high reliability, and rapid response characteristics.Working Principle of SolenoidIts basic construction consists of a coil wound around a movable ferromagnetic core (plunger), as shown in Fig. 1. When current flows through the coil, a magnetic field is generated, which pulls or pushes the plunger to create mechanical force. The magnetic force increases as the gap between the plunger and core decreases, resulting in a rapid, full-stroke action.Fig. 1 Diagrammatic illustration of the solenoid valve. Source: Rakesh Kumar, Ph.D.Types of SolenoidSolenoid valves are manufactured in numerous configurations and dimensions. Multiple variants exist, differentiated by their flow capacity ratings, operating pressure ranges, and specific internal mechanical designs. They come in two primary categories:On–off typeProportional typeOn-Off SolenoidsOn-off solenoids operate on a binary principle, functioning similarly to basic switches by existing in only two states. Either fully activated (on) or completely deactivated (off). Ideal for simple, binary tasks such as opening/closing valves, activating locks, or switching circuits.Working of Normally On SolenoidsIn a normally open solenoid, the spring holds the plunger in an upward position, maintaining the valve in an open state. When electrical current is applied to the coil, the resulting electromagnetic field pulls the plunger downward, closing the valve. Once the current is interrupted, the electromagnetic force disappears, and the spring pushes the plunger back to its original elevated position, reopening the valve.Working of Normally Off SolenoidsIn a normally closed valve configuration, the spring maintains downward pressure on the plunger, keeping the valve shut. When electricity flows through the coil, it creates an electromagnetic field that overcomes the spring tension, pulling the plunger upward and opening the valve. Upon current stoppage, the electromagnetic field dissipates, allowing the spring to push the plunger back down, returning the valve to its closed position.Though well-suited for simple tasks, these on-off solenoids lack the capability needed for applications that demand exact positioning or adjustable control levels.Proportional SolenoidsProportional solenoids deliver precise, variable control through current modulation. Unlike binary devices, they produce a wide range of outputs, essential for applications demanding accuracy and adaptability. Converting on-off solenoids to proportional operation requires substantial modifications, particularly to their geometric configuration and magnetic pathway design.ApplicationsSolenoid valves are common in controlling the flow of liquids and gases in industrial, medical, and utility applications. They are used to open or close valves in response to electrical signals, automating fluid supply in systems such as HVAC, food processing, pharmaceuticals, and water treatment.They are important in automation and machine control, working with sensors and controllers to synchronize processes in robotics, production lines, and smart infrastructure.Solenoid switches regulate the passage of electricity between power sources and devices, acting as efficient circuit activators and protectors. They enable or interrupt current flow, preventing overloads and optimizing energy use.The automotive sector utilizes solenoids for engine management, fuel injection, braking systems, and transmission control. They also appear in household appliances, aerospace equipment, home automation, etc.Proportional solenoid valves provide precise, variable control of flow rates, making them essential in pneumatic systems, process automation, and applications requiring accurate pressure, level, or temperature regulation.An efficient solenoid valve to considerSMC Series SZ3000 Solenoid ValveThe SMC Series SZ3000 5 Port Solenoid Valve, as shown in Fig. 2, is one of the most efficient solenoid valves. The valve operates on just 0.6 W power consumption (25 mA at 24 VDC), making it significantly more energy-efficient than standard solenoid valves. With a 10-ms response time at 0.5 MPa, the valve provides rapid actuation that enhances system precision and cycle times without sacrificing energy efficiency.Rated for over 50 million operational cycles, this valve delivers extraordinary longevity, reducing maintenance requirements and replacement costs over the system's lifespan. The cassette-type manifold design allows for easy valve replacement without disrupting the entire pneumatic system, minimizing downtime during maintenance.Fig. 2 SZ3000, 5 Port Solenoid Valve Source: SMCWith a manifold height of just 43.5 mm (including DIN rail), the SZ3000 offers space-saving installation while providing full functionality. Available in 2-position, 3-position, and 4-position configurations with various actuation types, the valve adapts to diverse application requirements while maintaining efficiency.These features combine to make the SMC Series SZ3000 (part number SZ3160-5LOZ-C6 for single solenoid or SZ3260-5LOZ-C6 for double solenoid configuration) one of the most efficient and versatile solenoid valve options available for industrial pneumatic applications.Summarizing the Key PointsSolenoids convert electrical energy into mechanical motion, featuring simple design, high reliability, and fast response, making them important in automation and control systems.On-off solenoids operate in binary states, either opening or closing valves, suitable for simple tasks like switches, locks, and circuit manipulation in various industries.Proportional solenoids provide precise, variable control by adjusting current, essential for applications requiring accurate positioning, such as flow regulation and pressure control.Energy-efficient solenoid valves like SMC Series SZ3000 consume minimal power, respond rapidly, and have high durability, reducing maintenance and enhancing system performance.Applications of solenoids include automotive, aerospace, home automation, and industrial systems, where they automate fluid flow, switching, and positioning tasks for enhanced efficiency.ReferenceDüzgün, E., & Şefkat, G. (2024). The Design and Analysis of a Proportional Solenoid with Experimental Validation of Static and Dynamic Behavior. Applied Sciences, 14(24), 11990. https://doi.org/10.3390/app142411990Song, C., & Lee, S. (2015). Design of a Solenoid Actuator with a Magnetic Plunger for Miniaturized Segment Robots. Applied Sciences, 5(3), 595–607. https://doi.org/10.3390/app5030595Wang, S., Weng, Z., & Jin, B. (2020). A performance improvement strategy for Solenoid Electromagnetic actuator in servo proportional valve. Applied Sciences, 10(12), 4352. https://doi.org/10.3390/app10124352The Engineering Mindset. (2019, March 25). Solenoid Basics Explained - working principle [Video]. YouTube. https://www.youtube.com/watch?v=BbmocfETTFoMEP Academy. (2023, February 8). How solenoid valves work [Video]. YouTube. https://www.youtube.com/watch?v=hVVIkQQbSHsSZ3160-5LOZ-C6-https://www.kynix.com/productdetails/33406400/smccorporation/sz31605lozc6.htmlSZ3260-5LOZ-C6-https://www.kynix.com/productdetails/60300474/smccorporation/sz32605lozc6.html

SummaryChristmas is coming,as well as the New Year's Day. In keeping with the festive lighting of the holiday season,there are various LED lighting architecture in the world. Now let me take you to tour the landmarks lit with LEDs.  In the touring of this LED architecture, I will also introduce how this landmarks be done. Well,these These attention grabbing displays are dependent on products that can deliver a wide range of colors, and a control scheme that allows lighting designers to fully realize their creative ideas. First Stationlet's begin with the glorious Miami in Miami,Florida.  Located downtown, the Miami Tower is a 47-story landmark that you may have seen in films and on television. Before conversion to LEDs, it was lit with a total of 382 1,000 W and 400 W metal halide fixtures, with gels (color filters) applied by maintenance crews to change the color effects. Conversion to a combination of LED flood lighting and strip lighting reduced energy, maintenance, and operating costs by over a quarter million dollars annually, and the building fa?ade can now be changed to a virtually limitless combination of colors and patterns with the “push of a button”. Miami Tower and the other landmarks reviewed in this article are illuminated using Philips Color Kinetics products, which currently have a bit of a monopoly in architectural installations. The control scheme uses a data enabler to combine power with a proprietary Ethernet DMX-based data signal called KiNET, prior to routing to luminaires, junction boxes, and/or strings of strip lights.Over 16 million color combinations can be achieved through the 8-bit channels of Red/Green/Blue/White or Red/Green/Blue/Amber luminaires. A number of different controllers can be used to program either static or dynamic displays. DSP techniques ensure that data corruption is negligible even in noisy, high-EMI environments, e.g., adjacent to powered radio antennas.  Second StationLet's travel across the country to the San Francisco-Oakland Bay Bridge.  The Bay Lights of the San Francisco-Oakland Bay Bridge, installed in 2013 in what was meant to be a two-year run to celebrate the bridge’s 75th anniversary, is currently the largest LED lighting sculpture in the world. With over 25,000 white LED nodes installed on the 1.8 mile western span, the bridge surpasses even the Eiffel Tower in number of LEDs.This lighting system uses light strands,each made up of 50 individually controllable nodes designed to operate in the demanding environment conditons of the bridge--rain,vibration,wind and even road debris. Control software scans the installation to ensure that all lighting is operational Bridge lighting projects are the most challenging to implement according to Philips, because the process can include not just lighting designers, architects, and contractors, but also transportation authorities and the Coast Guard, each with separate concerns and requirements. In addition, lighting installation usually requires workers to hang from suspended cables, and to work at night to minimize traffic impact. Doesn't that sound like fun?  Third StationThis is the season to be shopping,so let's envy the lucky folks in Philadelphia who get to spend time at the appropriately named Lit Brothers Building.  Listed on the National Registry of Historic Places in 1979, the Lit Brothers Building takes up a full city block with its mix of retail and office space. Unlike newer installations, preservation of the historic and structural aspects of the building were paramount in the lighting design, which includes both flood lights and light strips to illuminate the fa-ade and ornamental columns.As engineers, we’re interested in the technical and practical details of these LED projects, like lower operating costs and reduced maintenance requirements, but the non-energy benefits these projects bring can be even more significant. They play a tremendous role in creating a space that local residents and tourists look forward to visiting, enhancing the sense of fun and excitement in the community and the economic boost that often goes with it. Fina Station   The Bai Chay Bridge stands 50 m (164 ft) over Ha Long Bay, one of the most popular and beautiful tourist sites in Vietnam. In 2000, Ha Long Bay was nominated as one of the new seven natural wonders of the world, and in 2004, Ha Long Bay hosted almost 3 million tourists due to its geological value and natural beauty. Scattered across this bay are 1,969 islands, beautiful emerald waters, and with the Bai Chay Bridge, an edition in 2006, a new landmark in Vietnam.The Bai Chay Bridge has the widest width of any cable-stayed, single-plane concrete bridge in the world. The bridge was built to improve traffic conditions and adopt Japanese construction technologies. To make this landmark even more beautiful, the Bai Chay Bridge is now illuminated in colorful LED lights that reflect off the bay waters at night.LED lights were chosen due to their dynamic capabilities, long useful life and energy efficiency. In order to achieve all the goals the investor had set, Philips supplied an environmentally-friendly LED lighting solution for its high efficiency and dynamic and elegant lighting effects.The designers installed ColorReach Powercore gen2 and ColorReach Compact Powercore from Philips Color Kinetics to illuminate the cables and pillars that run high above the bridge, as well as to highlight the dramatic beauty of the bridge’s architecture. ColorGraze MX4 Powercore was used to illuminate the bottom of the bridge, and Archipoint iColor Powercore was used in a direct view application along the spans of the bridge. ConclusionSuch beautiful LED lighting architectures around the world create beauty, enhance entertainment and transform public spaces  for human being and nature. What's more,they witness the LED light's development and become an important milestone in the history of LED lighting. 

The days of making a prototype board by hand by the artist are long gone. For many years, the ability to make one's own PCBs was the characteristic of an ideal design engineer (or a big shot electronic hacker). The art of making a homemade PCB has progressed over time, beginning with the use of ferric chloride solutions and progressing to laser toner printers and, more recently, 3D printers. The commercial PCB manufacturing process has evolved in tandem with the evolution of "homemade technology." Over the last few decades, the manufacturing process of the PCB (and the businesses involved in it) have expanded by leaps and bounds. The use of materials changed, and the cost of production dropped like never before, ushering in the age of affordable PCB prototype service by full scale pcb manufacturers. Designers seldom approached a full-service PCB manufacturer to print a prototype in the early days. Designers either created a prototype of their own or, in the majority of cases, approached a small-scale board manufacturer to have their images created. In those days, the expense of printing a prototype was prohibitively expensive. As technologies and processes have advanced, both designers now shift to full-service PCB manufacturers for prototyping. The advancement of technology and modern processes allowed full-scale PCB manufacturers to print prototypes and small volumes at a much lower cost than in the past. Let's dig a little deeper to see what are the 10 most important items a designer should consider when selecting a PCB prototype service are.How to Choose the Right PCB Prototype Service ? 1. CostThe first criterion to consider when selecting a PCB partner should be consistency. The prototype you print should be error-free (like a missing print or a small drill hole than the actual design). The materials selected by the PCB printing company should be free of flaws. All of these factors add up to consistency. The PCB manufacturer's quality is critical for getting your prototype correct and working. You may evaluate quality by examining the services provided by a PCB manufacturer. Examine how seriously they take a prototype client when it comes to PCB prototype operation. What is the significance of this PCB prototype service business to a specific manufacturing company? You may also speak with the customer service representatives to see how knowledgeable they are about the prototype service. A good company/manufacturer that is serious about prototype service will almost certainly have a separate segment dedicated to prototype service only. Their website will have details on the subject. Customer service will be very knowledgeable and supportive. Finally, before making a decision, conduct research on the internet about a specific manufacturer, especially in forums and communities. ALLPCB, Sunstone, EuroCircuits, 4PCB, and EpecTec are some PCB manufacturers that provide high-quality prototype services based on my experience (and other reviews). 4PCB is the only one of these five firms that does not have a dedicated section for prototype printing. Sunstone and AllPCB have whole parts devoted to prototyping services. Services for all PCBs start as low as $5 USD. 2. MOQ (Minimum Order Quantity)The minimum order quantity requested by the manufacturer, in my opinion, should be the second criterion in selecting a PCB prototype service. A prototype is a concept that is in its early stages and is subject to alteration. If a PCB manufacturer wants you to order a much larger minimum quantity (usually measured and quoted in square inches) than you can afford (or far exceeds your budget), you can avoid that manufacturer. The majority of manufacturers are willing to negotiate on this point.As a designer, you will negotiate with the manufacturer for potential orders. The main point here is that a MOQ that appears low or inexpensive to one designer (or design/production company) can be prohibitively expensive to another.33. CostThe cost/price quoted by the PCB manufacturer is the third factor to consider. In reality, the PCB printing industry is a highly competitive one. With the internet at their fingertips (4G and smartphones), everyone can search and compare quotes from various PCB manufacturing companies in a matter of hours. Because of the highly competitive climate, it is unlikely that there would be a significant difference in prices quoted by various manufacturers. Bear in mind that quality and price do not go together! Manufacturers with superior technologies, high-quality products, and overall quality would undoubtedly charge a higher price than their competitors. My advice is always to prioritize quality over price. Consider the following scenario: you had to reprint the prototype due to poor quality or a problem on the manufacturer's end. Weighing the additional cost (for reprinting) and time loss, I would probably choose a reputable manufacturer with good quality, even if the price is slightly higher.4. Turnaround TimeFast delivery of your prototype from the order date is a critical criterion to consider when selecting a PCB prototype service partner. It's pointless if a manufacturer takes two weeks from the order date to ship your prototype. The majority of prototype projects have strict deadlines. Typically, a manufacturer quotes 5 days or more to ship the prototype from the day the order is approved (Gerber files accepted). There are providers that provide quicker service as well; for example, ALLPCB provides prototype delivery within 2 to 3 days of Gerber file approval. EuroCircuits, a well-known PCB manufacturer, charges between 2 and 7 days for their prototype operation. Sunstone, another big player, provides a time guarantee in which they guarantee a refund if they fail to ship on the agreed-upon date. However, they are not as fast as the ALLPCB men, typically taking more than 5 days to complete an order (the maximum lead time of Sunstone is around 3 weeks). 5. Customization OptionsPrototypes are subject to alteration until they take on their final form. They can change scale, parts, and, in some cases, the entire form. It is difficult for any manufacturer to provide customizations on the fly. If customizations are important to you, look for a manufacturer who has the necessary equipment and facilities to provide what you want. 6. International DeliveryCheck to see if the manufacturer you've narrowed down offers delivery to your country, particularly if you're working with an overseas printing business. The majority of full-service manufacturers have foreign shipping to almost all business countries. The majority of designers now work with PCB manufacturers in China, who provide high-quality PCBs at a low cost. The majority of these well-established Chinese businesses provide worldwide shipping. 7. Instant Quote Facility The majority of well-known manufacturers provide instant quotes on their websites. Often go with manufacturers who provide this online quote service. Instant quotes provide us with an idea of the costs involved. 8. Industry ExperienceUnique and advanced projects need prior expertise in a specific industry. For example, if you're working on a communication technology project, it's best to work with a vendor that has a proven track record in the same industry. Similarly, as the number of layers on your board grows, go with existing players who are well-versed in multilayer printing. 9. Multi Disciplinary Services If you intend to outsource services such as PCB assembly, you should look for a manufacturer that provides a variety of options.10. Safe Packing & ShippingFinally, be certain that the manufacturer you choose adheres to healthy packaging and shipping practices. Nobody wants their goods to be harmed during delivery. If you need faster delivery, see if the manufacturer provides express shipping (often at a higher price). Ref:KY66-G6EU-134P-US DC6KY66-EF2-5NUKY66-G6K-2G-Y-DC4.5