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NXPTEA1713150W一体化PC适配器解决方案

发布时间:2020-07-21 19:00:20 阅读: 来源:冰格厂家

NXP 公司的TEA1713集成了PFC控制器和半桥谐振转换器(HBC),通用火线输入电压70 V到276 V (AC),具有过流保护(OCP),过压保护(OVP)和去磁传感,保证在所有条件下安全工作。HBC控制器集成了高压电压转移器,半桥开关频率最大为500kHz,自适应的非重叠时间和突发模式开关,主要用在LCD TV,等离子电视和适配器。本文介绍了TEA1713主要特性,方框图,应用框图和250W LCD TV与70W 笔记本电脑适配器电源电路图,以及采用TEA1713和TEA1795 150W一体化PC适配器电路图,材料清单。 TEA1713 and TEA1795 demo board for 150 W all-in-one PC adapter The TEA1713 integrates a Power Factor Corrector (PFC) controller and a controller for a Half-Bridge resonant Converter (HBC) in a multi-chip IC. It provides the drive function for the discrete MOSFET in an up-converter and for the two discrete power MOSFETs in a resonant half-bridge configuration. The efficient operation of the PFC is achieved by implementing functions such as quasi-resonant operation at high power levels and quasi-resonant operation with valley skipping at lower power levels. OverCurrent Protection (OCP), OverVoltage Protection (OVP), and demagnetization sensing ensure safe operation under all conditions. The HBC module is a is a high-voltage controller for a zero-voltage switching LLC resonant converter. It contains a high-voltage level shift circuit and several protection circuits including OCP, open-loop protection, capacitive mode protection and a general purpose latched protection input. The high-voltage chip is fabricated using a proprietary high-voltage Bipolar-CMOS-DMOS power logic process that enables efficient direct start-up from the rectified universal mains voltage. The low-voltage Silicon On Insulator (SOI) chip is used for accurate, high-speed protection functions and control. The topology of a PFC circuit and a resonant converter controlled by the TEA1713 is very flexible, enabling it to be used in a broad range of applications with a wide mains voltage range. Combining PFC and HBC controllers in a single IC makes the TEA1713 ideal for controlling power supplies in LCD and plasma televisions. Highly efficient and reliable power supplies providing over 100 W can be designed easily using the TEA1713, with a minimum of external components. TEA1713主要特性:1. General features

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