Motor Control Solutions Microchip Technology Inc. Motor Control Solutions

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

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

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

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

Open Loop and Closed Loop Motor Control Loops Open Loop and Closed Loop

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!

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.

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.

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”

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.

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.

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.