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Thermal Management Of Electronic Devices And Systems
All electronic devices and circuitry generate excess heat and thus require thermal management to improve reliability and prevent premature failure. The amount of heat output is equal to the power input, if there are no other energy interactions. There are several techniques for cooling including various styles of heat sinks, thermoelectric coolers, forced air systems and fans, heat pipes, and others. In cases of extreme low environmental temperatures, it may actually be necessary to heat the electronic components to achieve satisfactory operation. Overview Thermal resistance of devices This is usually quoted as the thermal resistance from junction to case of the semiconductor device. The units are °C/W. For example, a heatsink rated at 10 °C/W will get 10 °C hotter than the surrounding air when it dissipates 1 Watt of heat. Thus, a heatsink with a low °C/W value is more efficient than a heatsink with a high °C/W value. Given two semiconductor dev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CFD Forced Convection Heat Sink V4
__NOTOC__ CFD may refer to: Science and computing * Computational fluid dynamics, a branch of fluid mechanics using computational methods to predict the behavior of fluid flows * Counterfactual definiteness, the ability, in quantum mechanics, to consider results of unperformed measurements * CFEngine daemon, the process that runs CFEngine * Common fill device, an electronic module used to load cryptographic keys into electronic encryption machines * Constant fraction discriminator, a signal processing component * Complement factor D, an enzyme encoded by the ''CFD'' gene Business * Contract for difference, a type of financial derivative, where two parties exchange the difference between opening and closing value of an underlying asset * Control Flow Diagram, is a diagram to describe the control flow of a business process, process or program * Cumulative Flow Diagram, an area graph that depicts the quantity of work in a given state Firefighting organizations * Calgary Fire D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thermal Resistance In Electronics
Thermal resistance is a heat property and a measurement of a temperature difference by which an object or material resists a heat flow. Thermal resistance is the reciprocal of thermal conductance. * (Absolute) thermal resistance ''R'' in kelvins per watt (K/W) is a property of a particular component. For example, a characteristic of a heat sink. * Specific thermal resistance or thermal resistivity ''Rλ'' in kelvin–metres per watt (K⋅m/W), is a material constant. * Thermal insulance has the units square metre kelvin per watt (m2⋅K/W) in SI units or square foot degree Fahrenheit–hours per British thermal unit (ft2⋅°F⋅h/Btu) in imperial units. It is the thermal resistance of unit area of a material. In terms of insulation, it is measured by the R-value. Absolute thermal resistance Absolute thermal resistance is the temperature difference across a structure when a unit of heat energy flows through it in unit time. It is the reciprocal of thermal conductance. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thermalright
Thermalright Inc. is a Taiwan-based company headquartered in Taipei, and established in 2001. The company produces aftermarket heat sinks and other components for cooling desktop computers. Thermalright advertises its products as suitable for cooling processors from AMD and Intel. Types of products *CPU heat sinks *VGA heat sinks *Chipset heat sinks *MOSFET heat sinks *Memory heat sinks *Cooling fans *Other small accessories Similar companies *Arctic *Cooler Master *Deepcool DeepCool () is a computer hardware manufacturer headquartered in Beijing, China. Founded in 1996, the company produces a range of products including air and water CPU coolers, computer cases, power supplies, computer peripherals, and accessori ... Notes External links *{{Official website, http://www.thermalright.com 2001 establishments in Taiwan Computer hardware companies Computer hardware cooling Electronics companies established in 2001 Electronics companies of Taiwan Taiwanese ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Foxconn
Hon Hai Precision Industry Co., Ltd., trading as Hon Hai Technology Group in China and Taiwan and Foxconn internationally, is a Taiwanese multinational electronics contract manufacturer established in 1974 with headquarters in Tucheng, New Taipei City, Taiwan. In 2021, the company's annual revenue reached () and was ranked 20th in the 2022 Fortune Global 500. It is the world's largest technology manufacturer and service provider. While headquartered in Taiwan, the company is the largest private employer in the People's Republic of China and one of the largest employers worldwide. Terry Gou is the company founder and former chairman. Foxconn manufactures electronic products for major American, Canadian, Chinese, Finnish, and Japanese companies. Notable products manufactured by Foxconn include the BlackBerry, iPad, iPhone, iPod, Kindle, all Nintendo gaming systems since the GameCube (except subsequent Nintendo DS models), Nokia devices, Sony devices (including the PlaySta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aero Cool
Aero is a Greek prefix relating to flight and air. In British English, it is used as an adjective related to flight (e.g., as a shortened substitute for aeroplane). Aero, Ærø, or Aeros may refer to: Aeronautics Airlines and companies * Aero (Polish airline), a Polish airline founded in 1925 which later was merged into LOT * Aero Airlines, an Estonian airline owned by Finnair * Aero Commander, formerly known as Aero, a division of Rockwell International * Aero Cóndor, an airline based in Lima, Peru * Aero Contractors (Nigeria), a scheduled airline from Nigeria * Aero Contractors (United States), private charter company based in Smithfield, North Carolina * Aero O/Y, former name of Finnair * Aero Vodochody, a Czech aircraft manufacturer founded in 1919 * Aerocondor, Portuguese airline * Aeroflot, the flag carrier of the Russian Federation * Aerolíneas Argentinas, the flag carrier airline of Argentina * Aeroméxico, the flag carrier airline of Mexico * Aeroperú, a Peruvian ai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Personal Computer
A personal computer (PC) is a multi-purpose microcomputer whose size, capabilities, and price make it feasible for individual use. Personal computers are intended to be operated directly by an end user, rather than by a computer expert or technician. Unlike large, costly minicomputers and mainframes, time-sharing by many people at the same time is not used with personal computers. Primarily in the late 1970s and 1980s, the term home computer was also used. Institutional or corporate computer owners in the 1960s had to write their own programs to do any useful work with the machines. While personal computer users may develop their own applications, usually these systems run commercial software, free-of-charge software (" freeware"), which is most often proprietary, or free and open-source software, which is provided in "ready-to-run", or binary, form. Software for personal computers is typically developed and distributed independently from the hardware or operating sys ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Overclocking
In computing, overclocking is the practice of increasing the clock rate of a computer to exceed that certified by the manufacturer. Commonly, operating voltage is also increased to maintain a component's operational stability at accelerated speeds. Semiconductor devices operated at higher frequencies and voltages increase power consumption and heat. An overclocked device may be unreliable or fail completely if the additional heat load is not removed or power delivery components cannot meet increased power demands. Many device warranties state that overclocking or over-specification voids any warranty, however there are an increasing number of manufacturers that will allow overclocking as long as performed (relatively) safely. Overview The purpose of overclocking is to increase the operating speed of a given component. Normally, on modern systems, the target of overclocking is increasing the performance of a major chip or subsystem, such as the main processor or graphics cont ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Overclocking
In computing, overclocking is the practice of increasing the clock rate of a computer to exceed that certified by the manufacturer. Commonly, operating voltage is also increased to maintain a component's operational stability at accelerated speeds. Semiconductor devices operated at higher frequencies and voltages increase power consumption and heat. An overclocked device may be unreliable or fail completely if the additional heat load is not removed or power delivery components cannot meet increased power demands. Many device warranties state that overclocking or over-specification voids any warranty, however there are an increasing number of manufacturers that will allow overclocking as long as performed (relatively) safely. Overview The purpose of overclocking is to increase the operating speed of a given component. Normally, on modern systems, the target of overclocking is increasing the performance of a major chip or subsystem, such as the main processor or graphics cont ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thermodynamic Efficiency
In thermodynamics, the thermal efficiency (\eta_) is a dimensionless performance measure of a device that uses thermal energy, such as an internal combustion engine, steam turbine, steam engine, boiler, furnace, refrigerator, ACs etc. For a heat engine, thermal efficiency is the ratio of the net work output to the heat input; in the case of a heat pump, thermal efficiency (known as the ''coefficient of performance'') is the ratio of net heat output (for heating), or the net heat removed (for cooling) to the energy input (external work). The efficiency of a heat engine is fractional as the output is always less than the input while the COP of a heat pump is more than 1. These values are further restricted by the Carnot theorem. Overview In general, energy conversion efficiency is the ratio between the useful output of a device and the input, in energy terms. For thermal efficiency, the input, Q_, to the device is heat, or the heat-content of a fuel that is consumed. The de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heatsink
A heat sink (also commonly spelled heatsink) is a passive heat exchanger that transfers the heat generated by an electronic or a mechanical device to a fluid medium, often air or a liquid coolant, where it is dissipated away from the device, thereby allowing regulation of the device's temperature. In computers, heat sinks are used to cool CPUs, GPUs, and some chipsets and RAM modules. Heat sinks are used with high-power semiconductor devices such as power transistors and optoelectronics such as lasers and light-emitting diodes (LEDs), where the heat dissipation ability of the component itself is insufficient to moderate its temperature. A heat sink is designed to maximize its surface area in contact with the cooling medium surrounding it, such as the air. Air velocity, choice of material, protrusion design and surface treatment are factors that affect the performance of a heat sink. Heat sink attachment methods and thermal interface materials also affect the die temperatur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microprocessor
A microprocessor is a computer processor where the data processing logic and control is included on a single integrated circuit, or a small number of integrated circuits. The microprocessor contains the arithmetic, logic, and control circuitry required to perform the functions of a computer's central processing unit. The integrated circuit is capable of interpreting and executing program instructions and performing arithmetic operations. The microprocessor is a multipurpose, clock-driven, register-based, digital integrated circuit that accepts binary data as input, processes it according to instructions stored in its memory, and provides results (also in binary form) as output. Microprocessors contain both combinational logic and sequential digital logic, and operate on numbers and symbols represented in the binary number system. The integration of a whole CPU onto a single or a few integrated circuits using Very-Large-Scale Integration (VLSI) greatly reduced the cos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thermal Transfer
Thermal-transfer printing is a digital printing method in which material is applied to paper (or some other material) by melting a coating of ribbon so that it stays glued to the material on which the print is applied. It contrasts with direct thermal printing, where no ribbon is present in the process. Thermal transfer is preferred over direct thermal printing on surfaces that are heat-sensitive or when higher durability of printed matter (especially against heat) is desired. Thermal transfer is a popular print process particularly used for the printing of identification labels. It is the most widely used printing process in the world for the printing of high-quality barcodes. Printers like label makers can laminate the print for added durability. Thermal transfer printing was invented by SATO corporation. The world's first thermal-transfer label printer SATO M-2311 was produced in 1981. Thermal-transfer printing process Thermal-transfer printing is done by melting wax within ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
