Motor Control and Drive Motor Control and Drive Design Solutions

Motor Control and Drive Solutions Microchip's Motor Control and Drive Solutions Electric motors are estimated to consume around 45% of all electricity in the world today according to International Energy Agency (IEA). Electric motors are everywhere—in your washer, dryer, refrigerator, car, fan, pumps, air conditioner, etc. They make our lives easier, so it is important that they run as efficiently as possible. Microchip provides products and solutions (hardware and software) to address the many different motor types, including brushed DC, stepper, brushless DC, permanent magnet synchronous, AC...

Brushed DC Motor Control Brushed DC (BDC) motors get their name from the "brushes" used for commutation. Brushed DC motors are easy to control because speed and torque are proportional to the applied voltage/current. The rotor is heavy due to windings on the armature; more inertia makes it more difficult to start/stop. Heat is generated in windings on the rotor and is difficult to remove. Key Characteristics of Brushed DC Motors • Good controllability: on/off, proportional • Linear torque/current curve • Speed proportionate to voltage applied • Maintenance required • Low overloading capability •...

Stepper Motors ^ Microchip Stepper Motor Control Do you need exact position control with great holding torque? If so, then a stepper motor is the best solution. While nearly every MCU or DSC from Microchip can drive a stepper motor, some are better suited for this than others. Microchip offers a complete line of dual full-bridge drivers designed to drive bipolar stepper motors. These can be easily interfaced to any microcontroller. Also, Microchip's 8-bit PIC MCUs are an excellent solution for traditional stepper motor control. For advanced closed-loop stepper motor control, Microchip's dsPIC...

Brushless DC Motor Control BLDC Motor Control Looking for a high reliability, high efficiency and high power-to-size ratio motor? The obvious solution is a Brushless DC (BLDC) motor. It shares many of the same torque and speed characteristics with the brushed DC motor, but does not include the brushes. Technically it is a Permanent Magnet Synchronous Motor (PMSM), but its name comes from the simple method of commutation. In some cases the stator windings are constructed to match the nonsinusoidal commutation. The simpler commutation method allows the use of a wide range of Microchip products,...

Brushless DC Motor Control BLDC Application Notes and Tuning Guides Algorithm Tuning Guide: Sensorless BLDC Control with Back-EMF Filetering Using a Majority Function BLDC Development Tools Motor Control Starter Kit (MCSK) (DM330015) This starter kit with mTouch® sensing is a complete, integrated development platform based on the dsPIC33FJ 16MC102. It includes a USB interfaced debugger/programmer, a complete drive circuit, an on-board BLDC motor, a user-configurable switch and an mTouch sensing slider with LED indicators for speed control. dsPICDEM MCHV-2/3 Development System (DM330023-2/3) This...

Permanent Magnet Synchronous Motors PMSM Control Permanent Magnet Synchronous Motors (PMSM) are brushless and have very high reliability and high efficiency. Due to their permanent magnet rotor, they also have higher torque with smaller frame size and no rotor current, all of which are advantages over AC induction motors. With a high power-to-size ratio, PMSMs can help you make your design smaller without the loss of torque. PMSMs need to be commutated like BLDC motors, but due to the construction of the windings, the waveforms need to be sinusoidal for good performance. This requires more complicated...

Permanent Magnet Synchronous Motors PMSM Libraries Motor Control Library for dsPIC33F/dsPIC33E The Motor Control Library contains function blocks that are optimized for the dsPIC33F and dsPIC33E DSC families. All functions in this Motor Control Library have input(s) and output(s), but do not access any of the DSC peripherals. The library functions are designed to be used within an application framework for realizing an efficient and flexible way of implementing a motor control application. motorBench™ Development Suite This tool identifies the electrical and mechanical parameters of a motor and...

AC Induction Motor Control The AC Induction Motor (ACIM) is the workhorse of the motor world. It is the most common motor type, used in everything from consumer products to heavy industry. Its simple design with no brushes makes it highly reliable and also allows it to be manufactured at a low cost. But, it is less efficient than other motors like PMSM, which is partially related to the heat generation in the rotor windings. The open-loop voltage/frequency (V/f) drive technique is traditionally used to control ACIMs and it can be implemented on an 8-bit PIC MCU. This drive technique is not very...

MICROCHIP Recommended ProductsRecommended Products for Brushed DC Motor Control l. r— Dual, Non-inverting

Motor Control and Drive Design Soluti

Recommended Products ^ MicrochipRecommended Products for Stepper Motor Control Device Note 1: dsPIC33 devices feature one or two user-selectable 1.1 Msps 10-bit ADC (4 S & H) or 500 ksps 12-bit ADC (1 S & H). 2: A DAC is associated with each analog comparator to set a programmable voltage reference. One DAC output may be selected by software and driven on an external pin. 3: I = Industrial Temperature Range (-40°C to +85°C), E = Extended Temperature Range (-40°C to +125°C), H = High Temperature Range (-40°C to +140°C). 180° Sinusoidal Drive, Direction Control, Programmable BEMF Coefficient Range,...

Motor Control and Drive Design Solutio

Recommended Products SRAM (Bytes) Angular Timer Math Accelerator Recommended Products for ACIMs Input Capture Output Compare/ Standard PWM CodeGuard™ Security Segments

Stepper Motors Part 1: Types of Stepper Motors English Stepper Motors Part 2: Stepper Motor Control