IRMCS3043

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3

1 Introduction

1.1

Overview

IRMCS3043 is a reference design platform for complete inverter-controlled appliance motor drive applications based

one-chip solution that simultaneously controls PFC frond-end circuit and one permanent magnetic (PM) AC motor

(sinusoidal back EMF) without requiring motor position sensors.

IRMCF343 is International Rectifier’s new integrated circuit device primarily designed as a one-chip solution for

sensorless permanent magnet motor control with integrated PFC in appliance applications. Unlike a traditional

microcontroller or DSP, IRMCF343 provides a built-in closed-loop sensorless control algorithm using a unique

IRMCF343 also employs a unique single shunt current reconstruction circuit to eliminate additional analog/digital

elements, motion peripherals, a dedicated motion control sequencer and dual port RAM to map internal signal nodes.

Motion control programming is achieved by using a dedicated graphical compiler integrated into the

control tasks can be implemented in the 8051 high-speed 8-bit microcontroller. The 8051 microcontroller is equipped

simultaneous digital PFC control of the frond-end circuit that provides a regulated DC bus voltage to the inverter.

Figure 1 shows the IRMCS3043 system block diagram. In this platform, the PFC topology is implemented as the

conventional boost PFC; however, the IRMCF343 IC can also control the bridgeless PFC topology. Please contact the

iMOTION™ team for support if you need to control the bridgeless PFC using IRMCF343.

The IRMCS3043 power stage contains a Trench IGBT (IRGP4063DPbF) for the PFC and an integrated power module

(IRAMX16UP60A-2) for the inverter. The Trench IGBTs, part of IR’s iMOTION™ integrated design platform, have

lower collector-to-emitter saturation voltage (VCE(ON)) and total switching energy (ETS) than punch-through (PT)

and non-punch-through (NPT) type IGBTs. The combination of low VCE(ON) and ETS result in reduced power

dissipation and higher power density. IRAMX16UP60A-2 is an integrated power module developed and optimized for

appliance motor control.

IRMCF343

Multiple

Output

Power

Supply

IR2136

Digial I/O

Appliance Inverter

with PFC

3.3V

1.8V

Passive

EMI

Filter

Host

communication

Motor

(PMSM or IM)

PFC

Gate

Drive

Galvanic

isolation

EEPROM

Analog Input

18

2

2

Integrated Power Module

IRMCF343

Multiple

Output

Power

Supply

IR2136

Digial I/O

Appliance Inverter

with PFC

3.3V

1.8V

Passive

EMI

Filter

Host

communication

Motor

(PMSM or IM)

PFC

Gate

Drive

Galvanic

isolation

EEPROM

Analog Input

18

2

2

I n

t e

g

r a

t e

d

P

o

w

e

r

M

o

d

u

l e

Figure 1.

IRMCS3043 System Block Diagram