Motor Controls and Drives Reference Materials

Description: Imagine you are a surgeon in the middle of a major operation. Suddenly, one of the variable-frequency drives (VFDs) in your operating-room air-handling system develops a fault and stops running, ...

Description: Learn the terminology used to describe VFD internal operations and external interfaces - and you'll understand their application more thoroughly. ...

Description: Regardless of whether they are used in processing plants or in discrete manufacturing, commercial, municipal, or institutional facilities-motors that are started across the line require large amounts ...

Description: Controlling Multiple Motors with One VFD Saves Money and Space ...

Description: In order to limit the harmonic distortion produced by Adjustable Speed Drives (ASD's), manufacturers have introduced several methods of both passive and active harmonic mitigation. Users of ASD's ...

Description: Precise speed control of AC motors is typically accomplished with a variable frequency drive (VFD) connected to a speed or position feedback sensor. In certain situations, however, it's possible to ...

Description: The AEDR-850x encoder is the smallest three-channel optical encoder with digital outputs in the market, employing reflective technology for motion control purposes. This article describes the ...

Description: Problem: Looking for productivity and quality improvement, the customer called upon Parker SSD expertise for the implementation of a new high-speed double spooling machine. The customer was ...

Description: One of the growing problems facing the nursing career is a thinning staff, and with it the need to care for overweight patients with very little help. This effort has led to musculoskeletal disorders ...

Description: By rotating in discrete angular increments, stepping, stepper or simply step motors provide a more precise solution for many motion control and measurement applications, especially when the ...

Description: Up until 2006, the only broadcast-use professional motorized Pan/Tilts in the market were very heavy. This is because the equipment was built to hold analog video cameras, which could weigh as much as ...

Description: The Onyx guided parachute designed and manufactured by Atair Aerospace (NY) is an autonomous precision airdrop system. Each system fulfills the precision airdrop requirements under the U.S. Army's ...

Description: Consider, for example, specifying the lightest possible three-phase dc-brushless motor for use in a miniature aircraft. ...

Description: Energy is steadily becoming a rare and cost-sensitive item that can have a significant influence on the manufacturing cost of a machine. This cost factor can be minimized by using modern drive ...

Description: Scienion's leading product is the sciFLEXARRAYER, a state-of-the-art noncontact dispensing system for ultra-low volume liquid handling. Scienion has continuously expanded the sciFLEXARRAYER product ...

Description: Prior Scientific looks further into how PCI Motion Control is used in microscope automation applications. ...

Description: Small motors, less than 300 W, are found in a wide variety of applications. These include automobiles, printers, copiers, paper handlers, factory automation, test equipment, robotics, space & ...

Description: This reference design provides a hardware and software solution for Sensorless Brushless dc motors. This document includes complete schematics, printed circuit board layout, and firmware. The ...

Description: Stepper motors are used in a wide variety of applications. They are prevalent in consumer office equipment such as printers, plotters, copiers, and scanners. Stepper motors are also used in automotive ...

Description: This application note discusses the steps of developing several controllers for brushless motors. We cover sensored, sensorless, open loop, and closed loop design. There is even a controller with ...

Description: Two low-cost CMOS ICs manage a 12 VDC, current-limited speed control circuit for DC brush motors. The circuit design (see Figure 1) uses PWM (pulse width modulation) to chop the effective input ...

Description: As modern MOSFET transistors are developed with lower ON resistance and smaller packages, Electronic Speed Controls (ESC) follow. By using a microcontroller and a few small MOSFETs, high performance ...

Description: A PICDEM™ MC demo board was used to develop, test and debug the motor control code. The PICDEM MC has a single-phase diode bridge rectifier, converting AC input to DC and a power capacitor bank ...

Description: Electronic motor control for various types of motors represents one of the main applications for MOSFET drivers today. This application note discusses some of the fundamental concepts needed to obtain ...

Description: Single-phase induction motors are extensively used in appliances and industrial controls. The Permanent Split Capacitor (PSC) single-phase induction motor is the simplest and most widely used motor ...

Description: Before getting into actual control applications, we should understand what distinguishes the PIC18F4431 from other Microchip devices used for motor control. The core is a set of unique peripherals ...

Description: Continuous processes have been controlled by feedback loops since the late 1700's. In 1788, James Watt used a flyball governor on his steam engine to regulate its speed. The Taylor Instrument Company ...

Description: Brushless DC fan (BDC) speed can be varied using pulse-width modulation (PWM). The typical PWM control scheme inserts a power switch in series with the fan, as shown in Figure 1. In such applications, ...

Description: This application note demonstrates how you use the dsPIC30F MCU to control an AC Induction Motor (ACIM). The discussion is based on the dsPICDEM MC motor Control Development System, but you can use ...

Description: The dsPIC30F2010 is a 28-pin 16-bit MCU specifically designed for embedded motor control applications. AC Induction Motors (ACIM), Brushless DC (BLDC) and DC are some typical motor types for which the ...

Description: This application note describes how to provide Sensorless BLDC motor control with the dsPIC30F2010 Digital Signal Controller. The technique used is based on another Microchip application note: Using ...

Description: This application note describes a method of driving a sensored Permanent Magnet Synchronous Motor (PMSM) with sinusoidal currents controlled by a dsPIC30F Digital Signal Controller (DSC). The motor ...

Description: Brushless Direct Current (BLDC) motors have many advantages over other types of motors available in the industry. Previously, we have discussed the working principles of BLDC motors and the basics of ...

Description: AN1162 Sensorless Field Oriented Control (FOC) of an AC Induction Motor (ACIM) operate at a speed that is roughly proportional to the Author: Mihai Cheles input frequency. As you decrease the ...

Description: This application note describes a sensorless brushless DC (BLDC) motor control algorithm, implemented using the dsPIC® digital signal controller (DSC). The algorithm works by digitally filtering ...

Description: AN1160 Sensorless BLDC Control with Back-EMF Filtering Using a Majority Function SENSORED CONTROL VERSUS Author: Daniel Torres Microchip Technology Inc. SENSORLESS CONTROL The BLDC motor is used for ...

Description: AN1078 Sensorless Field Oriented Control of PMSM Motors This application note focuses on the PMSM-based sen- Author: Jorge Zambada sorless FOC control of appliances because this control Microchip ...

Description: AN906 Stepper Motor Control Using the PIC16F684 MICROSTEPPING Author: Reston Condit Microchip Technology Inc. Single stepping, or turning a stepping motor at its rated step size, results in less than ...

Description: AN901 Using the dsPIC30F for Sensorless BLDC Control Known Limitations Author: Charlie Elliott Smart Power Solutions, LLP As delivered, the maximum output frequency at Co-author: Steve Bowling which ...

Description: Benefits of using SmartFan include acoustical noise reduction, environmental (humidity, temperature or pressure) regulation, greater product reliability, increased fan life, improved safety and energy ...

Description: Multi-axis motion control systems are used extensively for positioning in manufacturing. These systems often rely on feedback from position sensors to maintain closed-loop control for improved ...

Description: A gantry mill manufacturer wanted to improve the positioning accuracy of their existing rack & pinion drive. The backlash at the rack & pinion caused inaccuracies while cutting material. ...

Description: A pick & place robot manufacturer needed an axis drive solution for the Injection Molding industry to reduce their part removal time, thereby increasing the throughput of the injection molding ...

Description: A manufacturer of waterjet cutting machines needed a axis drive solution for a new traveling gantry machine. They wanted to reduce the amount of machining needed for a typical rack & pinion drive, ...

Description: A punch press manufacturer needed to precisely position a sheet of metal in order to accurately punch parts. The material feed axis had to have high repeatability and no lost motion. ...

Description: When it comes to precision in the motion control industry, there are many important factors that contribute to inaccurate steps. As a total system, engineers must become knowledgeable of their step ...

Description: When it comes to precision in the motion control industry, there are many important factors that contribute to inaccurate steps. As a total system, engineers must become knowledgeable of their step ...

Description: Closed loop control of hydraulic or electric systems offers an excellent means of achieving precision movement with big loads and high forces. However, hydraulic servo drives in particular have a lot ...

Description: PCL-240 family In this family, each command is allocated a specific bit. Basically, this is a simple family that has only four modes: start mode, control mode, register select mode, and an output mode ...

Description: The output voltage waveform of an adjustable frequency drive is not a sine wave but a series of square wave voltage pulses that result in a reasonable approximation of a sine wave current. Although ...

Description: The SCK is the new kiln gas exit sampling system from ABB, a market leader in gas analysis for cement applications. It is the proven solution for the rough environmental conditions at the rotary kiln ...

Description: AdvancedTCA, ATCA (Advanced Telecom Computing Architecture) is the latest standard for carrier grade switching systems developed by the PICMG (PCI Industrial Computers Manufacturers Group) ...