IRPT2061A

PD 60120 PRELIMINARY IRPT2061A ™ Power Module for 1.5 hp Motor Drives · 1.5 hp (1.1 kW) power output Industrial rating at 150% overload for 1 minute · · · · · · · · · · 380-480V AC input, 50/60 Hz 3-phase rectifier bridge 3-phase, short circuit rated, ultrafast IGBT inverter HEXFRED ultrafast soft recovery freewheeling diodes Brake IGBT and diode Low inductance (current sense) shunts in positive and negative DC rail NTC temperature sensor Pin-to-base plate isolation 2500V rms Easy-to-mount package Case temperature range -25oC to 125oC operational Figure 1. IRPT2061A Power Module 380-480V 3-phase input IRPT2061A Power Assembly Gate Driver Board PWM variable frequency/ voltage AC motor isolated feedback feedback processing PWM generator keyboard External Control Functions Figure 2. The IRPT2061A power module within a motor control system IRPT2061A The IRPT2061A Power Module The IRPT2061A power module shown in Figure 1 is a chip and wire epoxy encapsulated module. It houses input rectifiers, brake IGBT and freewheeling diode, output inverter, current sense shunts and NTC thermistor. The 3phase input bridge rectifiers are rated at 1600V. The brake circuit uses 1200V IGBT and freewheeling diode. The inverter section employs 1200V, short circuit rated ultrafast IGBT's and ultrafast freewheeling diodes. Current sensing is achieved through 45 mΩ low inductance shunts provided in the positive and negative DC bus rail. The NTC thermistor provides temperature sensing c...