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Solutions Search - Ideal Diode Bridge

LT4321/LT4275 LTPoE++/PoE+/PoE PD Controller TechClips

Oct 24th 2013
Power over ethernet is a continuing trend in the Ethernet world. The current IEEE standard allows for up to 25.5W of PD input power. LTPoE++ is Linear Technology's solution to meet the demand for greater power with 38.7W, 52.7W, 70W and 90W power levels. Heat generated by Power Over Ethernet powered device (PD) is a design ...

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Meet Green Standards in 24VAC and 12VAC Lighting Systems: Replace Halogen Bulbs with LEDs Driven by High Power Factor, High Efficiency Converter

Keith Szolusha - Applications Engineering Section Leader Oct 17th 2013
LEDs are increasingly used in 24VAC and 12VAC lighting systems as a robust, energy efficient and high performance alternative to halogen lamps. Power converters that drive the LEDs should have a high power factor (above 90% in order to meet generally accepted green standards), should be efficient, use a minimal number of components ...

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Active Bridge Rectifiers Reduce Heat Dissipation within PoE Security Cameras

Ryan Huff - PoE Applications Engineer Oct 1st 2013
Introduction Power over Ethernet (PoE) has been embraced by the video surveillance industry as a solution to an age-old problem: complicated cabling. For instance, a basic, traditional fixed-view security camera requires two cables: one for power (10W to 15W from a 24V AC or 12V DC), and a separate, coax cable for the video ...

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The Dreaded "File Test" on an LT4320 Ideal Diode Bridge Controller

Ryan Huff - PoE Applications Engineer
Kaung Htoo - PoE Applications Engineer
Jul 9th 2013
The LT®4320/LT4320-1 are ideal diode bridge controllers that drive four N-channel MOSFETs, supporting voltage rectification from DC to 600Hz.  See how they can be used to replace conventional diodes:     By maximizing available voltage and reducing power dissipation (see thermograph comparison below), ...

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