1. Motor Control Solutions
Microchip Technology Inc.
Motor Control Solutions

2. Drivers for Electronic Content in Motor Control
Control motor speed
Diagnose and preempt motor failure
Increase motor’s lifetime in the field
Bring to market less expensive motors

3. Drivers for Electronic Content in Motor Control (cont.)
Worldwide Government Regulations
Push to energy efficient motors
Complex control algorithms for better energy efficiency
Ubiquitous Connectivity
Field buses growing in use in the factory
Any white goods appliance or consumer product with motor to be connected within the home

4. Motor Control Solution
Calculate
Measure
Control
Motor
The Basic Functions for Engineering the Solution

5. Electronics for Driving Motors (The Block Diagram)
Measure
Calculate
Control
Rotation
Position
Temperature
Pulse Width Modulation
Power Drivers
Timing
Math Functions
The customer wants to accomplish these functions in the areas of Measurement, Calculation and Control
PICmicro® MCUs
A-to-D Converters
Temperature Sensors
PICmicro MCUs
dsPIC™ devices
CCP/PWM
MOSFET Power Drivers

6. Open Loop and Closed Loop
Motor Control Loops
Open Loop and Closed Loop

7. Open Loop Control No Feedback! Simple to Implement! Calculate Measure
Pulse Width Modulation
Power Drivers
Timing
Calculate
Measure
Control
Motor
No Feedback! Simple to Implement!

8. Open Loop Control No Feedback! Examples of Open Loop Control
Basic control suitable for systems with simple loads such as fans
Tight speed control is not required
Examples of Open Loop Control
Single speed with automatic shutoff
Motor with manual multiple speed settings
The industries where Microchip’s current microcontrollers and those listed on the roadmap can play are listed above.
Motor types with 1 or 2 phases can be controlled using existing MCU’s, these would be any parts with 1 or 2 channels of PWM and ADC on board. Motor types with 3 or 4 phases will need one of the parts listed on the motor control roadmap, depending on the application and customer’s need.
Motor control can be basically divided into open loop and closed loop applications. For open loop, Microchip MCU’s currently available and on the roadmap will meet the requirements. For closed loop and sensorless applications, the higher end MCU’s (those with high-speed ADC) and dsPIC products will meet the requirements.

9. Open Loop Control Drives Solution Type Simpler, timer based solution
No complex calculations
Most common no measurement
Current sense for overload / stall conditions
Simplest PICmicro solutions can solve
PIC12C509A - 8 pin MCU
The industries where Microchip’s current microcontrollers and those listed on the roadmap can play are listed above.
Motor types with 1 or 2 phases can be controlled using existing MCU’s, sometimes with external logic. These would be any parts with 1 or 2 channels of PWM and ADC on board. Motor types with 3 or 4 phases will need one of the parts listed on the motor control roadmap, depending on the application and customer’s need.
Motor control can be basically divided into open loop and closed loop applications. For open loop, Microchip MCU’s currently available and on the roadmap will meet the requirements. For closed loop and sensorless applications, the higher end MCU’s (those with high-speed ADC) and dsPIC products will meet the requirements.

10. Closed Loop Control Two Types: “With Sensor” and “Sensorless”
Rotation
Position
Temperature
Pulse Width Modulation
Power Drivers
Timing
Math Functions
Calculate
Measure
Control
Motor
Two Types: “With Sensor” and “Sensorless”

11. Closed Loop Control
Determine rotor position and/or speed from one or more sensors
For accurate speed and control
Two types of closed loop control
Sensor
Sensorless
The industries where Microchip’s current microcontrollers and those listed on the roadmap can play are listed above.
Motor types with 1 or 2 phases can be controlled using existing MCU’s, these would be any parts with 1 or 2 channels of PWM and ADC on board. Motor types with 3 or 4 phases will need one of the parts listed on the motor control roadmap, depending on the application and customer’s need.
Motor control can be basically divided into open loop and closed loop applications. For open loop, Microchip MCU’s currently available and on the roadmap will meet the requirements. For closed loop and sensorless applications, the higher end MCU’s (those with high-speed ADC) and dsPIC products will meet the requirements.

12. Closed Loop Control “With Sensor”
Hall Effect
Quadrature Encoders
Resolvers (R to D converters)
Sensors provide either digital or analog output
The industries where Microchip’s current microcontrollers and those listed on the roadmap can play are listed above.
Motor types with 1 or 2 phases can be controlled using existing MCU’s, these would be any parts with 1 or 2 channels of PWM and ADC on board. Motor types with 3 or 4 phases will need one of the parts listed on the motor control roadmap, depending on the application and customer’s need.
Motor control can be basically divided into open loop and closed loop applications. For open loop, Microchip MCU’s currently available and on the roadmap will meet the requirements. For closed loop and sensorless applications, the higher end MCU’s (those with high-speed ADC) and dsPIC products will meet the requirements.

13. Closed Loop Control “Sensorless”
Reduce system cost by eliminating sensors
Measures current flowing in the motor
Measure back EMF voltage (V) for motors with magnets
Measure inductance (L) in switched reluctance motors
The industries where Microchip’s current microcontrollers and those listed on the roadmap can play are listed above.
Motor types with 1 or 2 phases can be controlled using existing MCU’s, these would be any parts with 1 or 2 channels of PWM and ADC on board. Motor types with 3 or 4 phases will need one of the parts listed on the motor control roadmap, depending on the application and customer’s need.
Motor control can be basically divided into open loop and closed loop applications. For open loop, Microchip MCU’s currently available and on the roadmap will meet the requirements. For closed loop and sensorless applications, the higher end MCU’s (those with high-speed ADC) and dsPIC products will meet the requirements.