AN1915D Freescale Semiconductor / Motorola, AN1915D Datasheet - Page 14

• Manufacturer Part Number: AN1915D
• Description: 3-Phase BLDC Motor Control with Quadrature Encoder using DSP56F80x
• Manufacturer: Freescale Semiconductor / Motorola

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System Concept
4.
4.1 System Outline
The system is designed to drive a 3-phase BLDC motor. The application meets the following
performance specification:
The introduced BLDC drive is designed to power a low-voltage BLDC motor equipped with
Quadrature Encoder, which is supplied with the EVM Motor Board. The motor has the following
specifications:
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System Concept
Motor Specification:
Voltage control of BLDC motor using Quadrature Encoder
Targeted for DSP56F803EVM, DSP56F805EVM, DSP56F807EVM
Running on 3-phase EVM Motor Board
Control technique incorporates:
— Voltage BLDC motor control with speed-closed loop
— Both direction of rotation
— Motoring mode
— Start from any motor position without rotor alignment
— Minimal speed 50 RPM
— Maximal speed 1000 RPM (limited by power supply)
Manual interface (Start/Stop switch, Up/Down push button control, Led indication)
PC master software control interface (motor start/stop, speed set-up)
PC master software monitor
— PC master software graphical Control Page (required speed, actual motor speed, start/stop
— PC master software Speed Scope (observes actual & desired speeds)
DC-Bus under-voltage fault protection
Position Sensor
Specification:
status, DC-Bus voltage level, system status)
3-Phase BLDC Motor Control with Quadrature Encoder
Table 4-1. Specifications of the 3-ph BLDC Motor
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
eMotor Type:
Sensor 1 Type:
Sensor 2 Type:
Phase Current:
Speed Range:
Line Voltage:
500 Pulses Per Revolution
3-Phase Hall Sensors
3-Phase BLDC Motor
Quadrature Encoder
< 5000 RPM
4Poles
60V
2A
MOTOROLA