App note: Understanding infrared diode power ratings

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App note from TT Electronics about infrared diode specs, how they vary from different manufacturers, and help clear things about infrared definition of parameters. Link here (PDF)

Infrared emitting diode power measurement is dependent upon a number of variables which must be precisely defined in order for design engineers to utilize data sheet information. Manufacturers differ not only in the techniques used in measuring power, but also in their interpretations of the definitions of the parameters which are measured. This application bulletin is intended to clarify this misunderstanding, especially for GaAs and GaAlAs solution grown epitaxial devices.

App note: Linear and rotary encoders are evolving to meet demands

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Application notes from TT Electronics on optical encoders versatile sensing. Link here (PDF)

Linear and rotary encoders have come in a wide variety of design styles over the years, the most common being rotary switches, potentiometers, capacitive, magnetic, and optical types. The optical encoder has become the most popular of these encoding methods due to its long life, simplicity of construction, versatility, high accuracy and high resolution. This application bulletin will briefly define an optical encoder, and bring the designer up to date on encoder terminology, design techniques and limitations.

App note: Position sensing technologies in automotive applications

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An Autopad(TM) sensor from TT Electronics provides a new non contact position sensing. Link here (PDF)

Automotive design engineers are continuously seeking components that offer performance and flexibility beyond those of conventional position sensing technologies. Further still are the requirements that these devices be versatile and adaptable to a wide range of applications. This demand has led to the need for devices incorporating the best design elements from conventional contacting and non-contacting sensor technologies.

App note: Thermal management basics and its importance for LED luminaire performance and cost

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Article about thermal management on LED luminaire from TT Electronics. Link here (PDF)

LED luminaires are being marketed today as an alternative lighting technology that reduces power consumption and maintenance costs for commercial and residential installations. Thermal management has a significant impact upon the lifetime, performance and cost of an LED luminaire. Without proper application of thermal management design principles, the potential benefits of solid state lighting and its ability to be successfully marketed will be reduced.