System architecture

UM0428

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1

System architecture

The generic motor control system can be schematized as the arrangement of four blocks

(see Figure 2):

●

Control block

●

Power block

●

Motor

●

Power supply

Figure 2.

Motor control system architecture

The system proposed for the IGBT power module eval kit is composed of one control board

STEVAL-IHM010V1, one power board STEVAL-IHM011V1, one motor and the power

supply.

The control board STEVAL-IHM010V1 is a Microcontroller (ST7MC) based board that

provides the driving signals related to the motor selected and the driving strategies.

Driving signals are constituted of 6 PWM signals in the range of 0-5 V (see Note 2) paired in

High side/low side pairs of one signal for each leg. In the system proposed three legs are

present (three-phase inverter).

The Power Board STEVAL-IHM011V1 is based on a power module (STG3P2M10N60B)

that converts the control signal in the power signals to drive the motor. The connection

between the control board and the power board is performed through a dedicated 32-pin

connector called “motor control connector” (see Section 5.1: MC Connector).

The IGBT power module eval kit is able to drive the following kinds of motors:

●

AC induction motor, sensored

●

Brushless permanent magnet motor (trapezoidal driven), sensored or sensorless

●

Brushless permanent magnet motor (sinusoidal driven), sensored

The power board is supplied by a high voltage AC power supply 220 V (or 110 V) with the

capability to generate current up to 10 amps.

2

The power board can accept control signals in the range of 0-3.3 V if the jumpers are

properly configured.

Control

Block

Power

Block

Power

Supply

Motor