Microchip Technology Motor Control for Brushless DC Motors

Microchip Technology Motor Control for Brushless DC Motors is a full line of MCUs, ignition controllers, and brushless DC Motor control drivers. The devices are useful in embedded applications with extremely low power consumption. Use these to increase control system capability and improve embedded design efficiency. This collection includes complete motor control and drives solutions for automotive and industrial applications.

Brushless DC (BLDC) Motor Overview

A Brushless DC (BLDC) motor is a Permanent Magnet Synchronous Motor with a unique back EMF waveform that allows them to behave similarly to a brushed DC motor. Some confusion can arise from the name, as a brushless DC motor does not directly operate off a DC voltage source. However, the basic principle of operation is similar to a DC motor.

A Brushless DC Motor has:

A rotor with permanent magnets and a stator with windings
A BLDC motor is essentially a DC motor turned inside out
Brushes and commutator have been eliminated, and the windings are connected to the control electronics
Control electronics replace the function of the commutator and energize the proper winding
Windings are energized in a pattern that rotates around the stator
The energized stator winding leads the rotor magnet and switches just as the rotor aligns with the stator

Applications

Anti-lock braking system
Disk drive servo
Throttle control

Fuel Pump
Oil Pump

RECOMMENDED PRODUCTS

Microchip offers a complete line of single-chip three-phase brushless and three-phase motor MOSFET gate drivers for a broad range of motor applications. These products are designed to interface to any microcontroller or be used in a standalone configuration.

For Single-Chip Drivers for BLDC Motor Control, Start with the: MTD6501
For MOSFET Gate Drivers for BLDC Motor Control, Start with the: MCP8024
Microchip’s award-winning 8-bit PIC® MCUs are an excellent solution for simple trapezoidal sensored or sensorless control.

For 8-bit PIC MCUs for BLDC Motor Control, Start with the: PIC16F917

For advanced closed-loop sensorless or sensored BLDC, motor control Microchip’s dsPIC® family of digital signal controllers (DSCs) offers DSP performance and advanced motor control peripherals. For dsPIC DSCs for BLDC Motor Control Start with the: 16MIPS dsPIC33FJ16MC102, or 70MIPS dsPIC33EP64MC206.

Microchip offers MIPS and ARM Cortex MCUs for high-performance, 32-bit motor control. These devices feature high-performance peripherals tailored for high-speed, closed-loop motor control.