ST STEVAL-IHM021V2 100W三相逆变器解决方案

ST 公司的STEVAL-IHM021V2 是用于矢量控制的采用L6390和STD5N52U的100W三相逆变器演示板,输入电压宽,230Vac输入时的最大功率达100W,具有和STM3210B-EVAL板接口的连接器,目标应用为冰箱压缩机和洗碗机电泵.本文介绍了高压器件L6390主要特性,方框图,应用框图,和马达控制系统架构图以及采用L6390和STD5N52U的100W三相逆变器演示板主要特性,方框图和电路图.

The L6390 is a high-voltage device manufactured with the BCD “OFF-LINE” technology. It is a single chip half-bridge gate driver for N-channel power MOSFET or IGBT.

The high side (floating) section is designed to stand a voltage rail up to 600 V. The logic inputs are CMOS/TTL compatible down to 3.3 V for easy interfacing microcontroller/DSP.

The IC embeds an operational amplifier suitable for advanced current sensing in applications such as field oriented motor control.

An integrated comparator is available for protections against overcurrent, overtemperature, Etc.

L6390主要特性:

■ High voltage rail up to 600 V

■ dV/dt immunity ± 50 V/nsec in full temperature range

■ Driver current capability:

– 290 mA source,

– 430 mA sink

■ Switching times 75/35 nsec rise/fall with 1 nF load

■ 3.3 V, 5 V TTL/CMOS inputs with hysteresis

■ Integrated bootstrap diode
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