FNA41560设计的1500W空调电源技术

本文介绍了FNA41560主要特性，内部等效电路，典型应用电路图以及参考设计RD-345主要特性，空调器方框图，3相逆变器参考设计电路图和PCB布局图。

Fairchild公司的FNA41560 是运动智能的功率模块，包括有600V-15A 3相IGBT逆变器桥，控制IC和保护电路，逆变器的每相电流可单独监视，内置的温度调节器用来超温监视，绝缘指标2000Vrms/min，主要用在AC 100V ~ 253V三相逆变器驱动以及家用电器如空调和电冰箱。

FNA41560主要特性：

• 600V-15A 3-phase IGBT inverter bridge including control ICs for gate driving and protection

• Easy PCB layout due to built-in bootstrap diode and VS output

• Divided negative dc-link terminals for inverter current sensing applications

• Single-grounded power supply due to built-in HVIC

• Built-in thermistor for over-temperature monitoring

• Isolation rating of 2000Vrms/min.

 FNA41560应用：

• AC 100V ~ 253V three-phase inverter drive for small power ac motor drives

• Home appliances applications like air conditioner and refrigerator

图1。FNA41560内部等效电路和输入/输出引脚图

图2。FNA41560典型应用电路图

参考设计RD-345

参考设计RD-345主要特性：

FNA41560

600V-15A 3-phase IGBT inverter bridge including control ICs for gate driving and protection

Easy PCB layout due to built-in bootstrap diode and independent VS pin

Divided negative DC-link terminals for inverter current-sensing applications

Single-grounded power supply due to built-in HVIC

Built-in NTC thermistor for over-temperature monitoring

Isolation rating of 2000Vrms/min.

1N4749A

Silicon planar power Zener diodes, DO-41 glass case

24V/1.0W rating Zener diode

For use in stabilizing and clipping circuits with high power rating

Standard Zener voltage tolerance: ±5%

图3。空调器方框图

图4。FNA41560 3相逆变器参考设计电路图

图5。3相逆变器参考设计PCB布局图