CISSOID Power Semiconductors’ Post

In today's world where electronic devices have become an integral part of our daily lives and electric cars are gaining popularity, efficient thermal management of these devices is more important than ever. Lithium batteries, which power most of these devices, require optimal temperatures to ensure their longevity, high performance, and safety. Our latest research, titled "Experimental and numerical study on heat transfer performance of wavy channel heat sink with varying channel heights," has been published in the International Communications in Heat and Mass Transfer. This paper presents a detailed investigation into the height variations of wavy channel heat sinks, exploring their role in enhancing thermal performance through a combination of experimental and numerical methods. We provide insights on the effects of diverse heat fluxes, flow rates, temperature, Nu number, flow and velocity, which are further enriched by a comprehensive non-dimensional analysis. I would like to give a special thanks to my supervisor, Prof Ziad Saghir, whose guidance and insights have been invaluable. If you are interested in learning more about our study, you can access the full paper through this link: https://lnkd.in/gwzb2vuB #ThermalManagement #LithiumBatteries #HeatTransfer #ElectricVehicles #TechInnovation #ResearchPublication #SustainableTech #ElectronicsCooling

Electric Cooler, Cooling Heating 2 Functions High Accuracy Thermoelectric Cooler Small Inertia 12V Double Layers for Laboratory Experiment for Industrial Filed

Flat Tire? Full Automatic Air Pump Powered by the IGBT DIW040F135 You can find them at many filling stations: Fully automatic tools to fill up flat tires. You just type in the required air pressure, connect the tube to the car's tire, and press a button. All the rest is done automatically. The compressed air is generated by an electric air pump and stored in a tank. The pump motor is driven by full electronic drive inverters, allowing precise and energy-saving airflow control. Depending on the size and power rating, the compressor is either operated on single-phase or three-phase mains. Diotec's DIW040F135 is a 40 A / 1350 V IGBT used in the drive inverter circuit. It offers a fast switching characteristic and low saturation voltage, both for saving energy and improving the efficiency of the inverter stage. An integrated freewheeling diode helps to save board space and assembly costs. The part comes in a standard TO-247 package for easy heat sink mounting and effective cooling. https://lnkd.in/emYzEw2Y #diotec #semiconductor #electronics #IGBT #transistor #airpump #automatic #compressor #inverter

Published a paper in ASME Journal of Heat transfer, entitled " Battery Thermal Management System on Trapezoidal Battery Pack With Liquid Cooling System Utilizing Phase Change Material". A revolutionary design of a trapezoidal battery pack with a liquid cooling system based on composite phase change material (CPCM) is proposed in this research. According to the f indings, a trapezoidal battery pack based on CPCM exhibits a more efficient rate of heat transfer than a battery pack based on PCM. Moreover, BTMS with a liquid cooling system achieves consistent temperature distribution, with the maximum temperature remaining within the ideal range of below 45⁰C under all test conditions. Which is very useful to Ev's and electric vehicles for this modern trend.

Question:- What is the Battery (wire) harness? Answer:- The battery wire harness in electric vehicles (EVs) is a high-voltage component that handles the interconnection of battery cells and external components like inverters to power the motors. EV battery wire harnesses require: 1. Higher power capacity (up to 800V) than traditional ICE cables. 2. Thicker, shielded insulation (orange material) with electromagnetic noise shielding. 3. Insulation materials like silicone rubber, PVC, and cross-linked fluoroelastomers. 4. Thermal resistance testing, heat age testing, tensile strength, spark testing, and adherence testing. #battery #lithium_ion #lithium_battery #lithium_technologies #lithium_india #Lithium_ev #electric_vehicle #mobility #battery_swapping #battery #Lithium #ev #renewable_energy_system #electric_vehicle #energy_storage_system

Wanna know how to make a powerful electromagnet from just a transformer? Check it out >> #electromagnet #electromagnetfromtransformer #mechtrontech

Thermal Conductivity Testers are specialized instruments used to measure the thermal conductivity of various materials. Thermal conductivity is a material property that indicates how efficiently a substance can transfer heat. These testers are employed in industries like construction, manufacturing, electronics, and energy to ensure materials meet performance requirements for insulation, heat exchange, and thermal protection! ACI uses this machine specifically for immersion cooling fluid development! #ImmersionCooling #AdvancingChemistry

With the much more higher power density and miniaturization of electronic products development, therefore High efficiency of PCB thermal dissipation is required. But the electronic engineers usually pay more attention to the overall thermal dissipation of high-power products, they ignore the PCB contribution of to thermal dissipation. According to the demand of terminal electronic products, Kinwong Electronics has conducted some R&D on the high thermal conductivity materials, the whole PCB thermal dissipation structure, the selection of high power devices and the thermal simulation technology, to get the best optimal thermal dissipation solution under different power density and working conditions.  Kinwong Elecronics designs thermal dissipation PCBs with different thermal dissipation levels according to the thermal conductivity requirements of high power products. The thermal conductivity of Kinwong is divided into 5 levels,it from 1W/m.K to 1000W/m.K; also the structure includes metal substrate PCB, inlay substrate PCB, ceramic substrate PCB, special substrate PCB, Insulated Metal radiator integration substrate PCB. In the selection of thermal dissipation PCB, it is necessary to match different thermal dissipation PCB according to different thermal dissipation designs and power device selections to meet the needs of products for thermal dissipation characteristics in order to obtain optimal thermal dissipation solutions.

February 26, 2024, 6:42 AM here we have capacitance ground for various machine generators all plotted one, half capacitance of one phase to ground. To make sure I wasn’t completely obvious that they were working together -General Electric plotted their full capacitance to ground. This covered machine sources up to at least 600 to 700 MVA, which was achieved sometime in the 40s. 1000 MVA designs were initiated immediately on victory over Germany in 1945. The 1000 machine design was completed by 1955 and manufacturing rights were provided to all other manufacturers globally. From 1964 on the rating of that machine has increased to 1800 MVA for three 3600 RPM, and and over 2000 MVA for 1800 RPM. Initial voltage was 22,000 V and that was increased to as higher as 27,500 V. Insulation classes went from B rise to F rise. Circuits were also improved as was the pressurization on the hydrogen gas. The short circuit values of the machine actively doesn’t change or has not change since 1955. The short circuit values are a function of a machine and the basic machine hasn’t changed. Thousands of these machines still exist in the field, and they all use the same neutral grounding transformer to create a TRV model wouldn’t be as difficult as Wen might think.

Miniaturization, THB high performance, high capacity density, AEC-Q200…everything in one product! Is it possible??