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Electronics Cooling

Focused on Thermal Management, TIMs, Fans, Heat Sinks, CFD Software, LEDs/Lighting

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The Better Box Model

 

Introduction For the consumer, natural convection cooling or fan-less cooling is the method of choice. It is silent, it is reliable, it is simple, and it is environmentally sound because no additional energy is used to remove the excess heat. For the thermal engineer, fan-less cooling is more problematic. On the plus side, no fan is needed, so there is an attractive cost … [Read more...]

Direct Spray Cooling and System-level Comparisons

 

Introduction As power densities of embedded electronics increase, cooling becomes a challenge especially in harsh environments. Liquid cooling is accepted as an attractive cooling method for an increasing number of applications. Direct spray is a particularly efficient form of liquid cooling that has recently been included on several manned and unmanned military platforms. This … [Read more...]

Change and Communication

 

We live in an age of change. Of course this is not new, the history of the human race has been one of change and adaptation throughout the ages. However, it seems that never before has the pace of change been so swift. Throughout the ages, this has been especially true with regards to how we communicate with each other. Our earliest ancestors on the savannas of Africa, in the … [Read more...]

Lowering a Notebook CPU Temperature Using a Dual-Tunnel Blower

 

Figure 1. Side by side comparison of blower technologies. Introduction Notebook computers on the market today may be classified in three categories. In the first category are the super slim and powerful notebooks such as the ThinkPad X300. In the second are the slim and light netbooks such as the ASUS Eee PC, and in the third are the high-end mobile workstations for … [Read more...]

LED Thermal Standardization: A Hot Topic

 

Introduction The main topic of the article is how to cope with the increasing need for standardization of thermal characterization of LEDs (Light Emitting Diodes) and LED-based products (see Fig.1 showing a typical LED package). The LED-business is growing much faster than analysts predicted five years ago. Unfortunately, the progress in thermal characterization has not kept … [Read more...]

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