IRPT1060A

Integrated Power Stage for 1 hp Motor Drives

System Description

The IRPT1060C provides the complete

conversion function for a 1hp 0.75kW variable frequency, variable voltage, AC motor controller. The combines a power module with a Driver-Plus Board IRPT1060D. Figure 1 shows the block diagram of the  within an AC motor control system.

The power module contains a 3-phase input bridge rectifier, 3-phase IGBT inverter, current sense shunts, and a thermistor. It is designed for easy mounting to a heat sink. The Driver-Plus Board contains DC link capacitors, capacitor soft charge function using NTC thermistor, surge suppression MOVs, IGBT gate drivers, DC bus voltage and current feedback signals, protetion circuitry and local power supply. It is designed to mate with a controller board through a single row header. Terminal blocks are provided on the Driver-Plus Board for all end user line input and motor output.

· 1 hp 0.75kW power output Industrial rating at 150% overload for 1 minute

· 180 - 240V AC input, 50/60Hz

· Available as complete system or as sub-system assemblies

Power Module

· 3-phase rectifier bridge

· 3-phase short circuit rated, ultrafast IGBT inverter

· Low inductance current sense shunts in positive and negative DC rail

· NTC temperature sensor

· Pin-to-base plate isolation 2500V rms

· Easy-to-mount two-screw package

· Case temperature range -25°C to 125°C operational

Driver-Plus Board

· DC bus capacitor filter with NTC inrush current limiter

· IR2132 monolithic 3-phase HVIC driver

· On-board +15V and +5V power supply

· MOV surge suppression at input

· DC bus voltage and current feedback

· Protection for short-circuit, earth/ground fault and overtemperature

· Terminal blocks for 3-phase input and output connections