Recomendados
Más contenido relacionado
La actualidad más candente
La actualidad más candente (20)
Similar a C Ontrol De Motores Pic
Similar a C Ontrol De Motores Pic (20)
Más de Luis Zurita
Más de Luis Zurita (20)
Último
Último (20)
C Ontrol De Motores Pic
- 1. © 2002 Microchip Technology Incorporated. All Rights Reserved. 1 Motor Control SolutionsMotor Control Solutions Microchip Technology Inc.
- 2. © 2002 Microchip Technology Incorporated. All Rights Reserved. 2 Drivers for Electronic ContentDrivers for Electronic Content in Motor Controlin Motor Control Control motor speed Diagnose and preempt motor failure Increase motor’s lifetime in the field Bring to market less expensive motors
- 3. © 2002 Microchip Technology Incorporated. All Rights Reserved. 3 Drivers for Electronic ContentDrivers for Electronic Content in Motor Control (cont.)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. © 2002 Microchip Technology Incorporated. All Rights Reserved. 4 Motor Control SolutionMotor Control Solution CalculateMeasure Control The Basic Functions for Engineering the Solution Motor
- 5. © 2002 Microchip Technology Incorporated. All Rights Reserved. 5 Electronics for Driving MotorsElectronics for Driving Motors (The Block Diagram)(The Block Diagram) CalculateMeasure Control • Rotation • Position • Temperature • Timing • Math Functions • Pulse Width Modulation • Power Drivers • PICmicro® MCUs • A-to-D Converters • Temperature Sensors • PICmicro MCUs • dsPIC™ devices • CCP/PWM • MOSFET Power Drivers
- 6. © 2002 Microchip Technology Incorporated. All Rights Reserved. 6 Motor Control LoopsMotor Control Loops Open Loop and Closed Loop
- 7. © 2002 Microchip Technology Incorporated. All Rights Reserved. 7 Open Loop ControlOpen Loop Control CalculateMeasure Control Motor No Feedback! Simple to Implement! • Timing • Pulse Width Modulation • Power Drivers
- 8. © 2002 Microchip Technology Incorporated. All Rights Reserved. 8 Open Loop ControlOpen Loop Control No Feedback! 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
- 9. © 2002 Microchip Technology Incorporated. All Rights Reserved. 9 Open Loop ControlOpen 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
- 10. © 2002 Microchip Technology Incorporated. All Rights Reserved. 10 Closed Loop ControlClosed Loop Control CalculateMeasure Control Motor Two Types: “With Sensor” and “Sensorless” • Pulse Width Modulation • Power Drivers • Rotation • Position • Temperature • Timing • Math Functions
- 11. © 2002 Microchip Technology Incorporated. All Rights Reserved. 11 Closed Loop ControlClosed 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
- 12. © 2002 Microchip Technology Incorporated. All Rights Reserved. 12 Closed Loop ControlClosed Loop Control “With“With Sensor”Sensor” With Sensor Hall Effect Quadrature Encoders Resolvers (R to D converters) Sensors provide either digital or analog output
- 13. © 2002 Microchip Technology Incorporated. All Rights Reserved. 13 Closed Loop ControlClosed Loop Control “Sensorless”“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
Notas del editor
- The customer wants to accomplish these functions in the areas of Measurement, Calculation and Control
- 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.
- 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.
- 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.
- 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.
- 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.