Service Manuals, User Guides, Schematic Diagrams or docs for : Philips LCD TV (and TPV schematics) LCD Power supply UM10379

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  UM10379
  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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