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基于 STNRG011 数字组合的 200W LED 电视电源

200 W power supply based on STNRG011 digital combo for LED TV

 
设计简介

The STEVAL-NRG011TV is a 200 W LED TV SMPS providing 12 V regulated output voltage (for MCU supply and audio system applications) and 65 V output voltage for LED back lighting.
[STEVAL-NRG011TV]
The design is based on the STNRG011 IC digital combo that controls a two-stage AC/DC SMPL.
The front-end is a transition mode PFC pre-regulator and the second stage is an LLC HB resonant converter.
Thanks to the STNRG011 IC, the user can take full advantage of digital implementation without the need of writing code.
A complete set of parameters, stored in the controller non-volatile memory (NVM), allows the configuration and fine tuning of the application.

所有功能
STNRG011 digital controller:
TM PFC with resonant HB-LLC converter
Input voltage range: 90 – 264 VAC
12 V/4 A, 65 V/2.3 A output voltage
Full load power: 200 W continuous operation
Full load efficiency greater than 91% at 115 and 230 VAC
No load mains consumption: less than 120 mW
Full set of programmable parameters
High flexibility thanks to the configurable NVM
Black box functionality with the embedded EEPROM

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