【应用】高集成度DC/DC控制转换器SGM46000助力储能逆变隔离电源设计，外围电路设计简单

时间： 2020-05-31 来源：SGMICRO

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储能逆变器(Battery Storage Inverter)智能电网与储能系统相比于传统的并网发电系统，户用储能系统的成本有所增加，但应用范围更为宽广，功能也更为强大，适合光伏、风能等清洁能源使用场景。

目前的小型逆变电路中，主桥的逆变元件一般选用MOSFET，实现T型三电平全桥逆变。对于高边的MOSFET一般需要一组隔离的15V电压去实现开关，建立栅极的开启电压。圣邦微（SGMICRO）推出的SGM46000是一个集成了主侧控制器和H桥驱动器的DC/DC控制转换器芯片，主要用于隔离电源电路，可直接驱动隔离变压器。

以下是SGM46000的典型应用电路：

SGM46000在小型逆变储能产品中有以下优势：

1. 功率适中：3W的连续输出功率可以满足绝大部分MOS的栅极驱动需求；

2. 外围电路简单：仅需简单阻容和一个小型外置变压器即可构建出一个隔离的电源，而且输出电压可自由通过匝数比配置（由于是开环设计，建议输出端放置稳压管）

3. 集成度高：在此封装下集成4个导通电阻仅为450mΩ的MOS管，并且开关时序和保护功能齐全；

以下是SGM46000的主要参数表：

综上，SGM46000是一颗非常适合在储能逆变电源设计中使用的隔离驱动器。

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喜来乐 Lv7. 资深专家 2021-01-22

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SGMICRO（圣邦微）信号链和电源管理芯片选型指南

描述- SGMICRO specializes in high-performance and high-quality analog and mixed-signal integrated circuits, and is committed to building a comprehensive portfolio of the highest quality analog and mixed-signal integrated circuits to address all customer needs.

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