车载充电器解决方案—Ameya360电子元器件平台

Release time:2019-11-18
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source:Ameya360
reading:2217

1、前言

车载充电器是指常规通过汽车电瓶 (轿车 12V, 卡车 24V) 供电的车载充电器,大量使用在各种便携式、手持式设备的锂电池充电领域。

车载充电器解决方案—Ameya360电子元器件平台

车载充电器既要考虑锂电池充电的实际需求:恒压 CV、恒流 CC、过压保护 OVP,又要兼顾车载电瓶的恶劣环境:瞬态尖峰电压、系统开关噪声干扰、EMI 等。因此选取的电源管理 IC 必须同时满足:耐高压,高效率,高可靠性,低频率的开关电源芯片。

2、方案概述

Ameya360 车载充电器解决方案采用内置过流保护、过温度保护等安全措施,通过 PWM 结合双运放来实现输出恒压 CV、恒流 CC、过压保护 OVP 等功能;实现了可靠、安全、完善的锂电池充电方案。专用于车充的全集成方案,系统成本低,可靠性高。输出电压、输出电流、输出过压保护的精度更高、响应速度很快提供充电电流在 0A ~ 3A 之间车载充电器的一系列高性价比产品。


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