Service Manuals, User Guides, Schematic Diagrams or docs for : Philips LCD TV LCD Power supply UM10379
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Typical 250 W LCD TV AC-DC power supply application with
the TEA1713 PFC and half-bridge resonant controller
Rev. 01 -- 16 April 2010 User manual
Document information
Info Content
Keywords TEA1713, half bridge, PFC controller, LLC resonant, high efficiency, zero
voltage switching, resonant frequency, leakage inductance.
Abstract The TEA1713 includes a PFC controller as well as a controller for a half
bridge resonant converter. This user manual describes a 250 W resonant
switching mode power supply for a typical LCD TV design based on the
TEA1713. The board provides 3 output voltages of 24 V / 8 A, 12 V / 4 A
and a standby supply of 5 V / 2 A. Good cross regulation is achieved
without using a compensation circuit. It is also possible to test the Burst
mode of the TEA1713. This feature is normally used in single-output
resonant converters but can also be tested with this demo board by
making some circuit adjustments. In Burst mode, the no load input power
is around 600 mW (490 mW when the 5 V STB supply is disconnected
from the PFC bus voltage) at high mains voltage. Typical efficiency at high
output power is above 90 % for universal mains input with Schottky
rectifiers.
NXP Semiconductors UM10379
TEA1713 250 W resonant demoboard
Revision history
Rev Date Description
01 20100416 First issue
Contact information
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: [email protected]
UM10379_1 All information provided in this document is subject to legal disclaimers.
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