文档介绍：TND360/D
Rev. 0, February 2009
Up to 180 W High Voltage LCD TV
Power and Integrated Inverter Supply
12 February 2009
© 2009 ON Semiconductor
Disclaimer: ON Semiconductor is providing this reference design documentation
package “AS IS” and the recipient assumes all risk associated with the use
and/mercialization of this design package. No licenses to ON
Semiconductor’s or any third party’s Intellectual Property is conveyed by the
transfer of this documentation. This reference design documentation package is
provided only to assist the customers in evaluation and feasibility assessment of
the reference design. It is expected that users may make further refinements to
meet specific performance goals.
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Table of Contents
Overview..............................................................................................................4
LCD-TV Power Architecture and Evolution ......................................................5
Critical Design Objectives..................................................................................8
PFC Stage............................................................................................................8
EMI filter ........................................................................................................9
Control Approach.........................................................................................11
Design Procedure ........................................................................................12
Test Results.................................................................................................16
Flyback Stage for Control, Signal & Audio Power .........................................18
NCP1351 variable OFF time PWM controller ..............................................18
ON Mode Operation.....................................................................................20
Cross Reg