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) ...

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 ...

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 ...

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), ...