Go to GlobalSpec.com Home
 

Free Registration 
GlobalSpec Home
Find:      Advanced >>
Toolbar The Engineering Toolbar
The Ultimate Resource for Engineering and Technical Research. (Learn More)
About DC Motor Drives
Find Products and Suppliers for
DC Motor Drives
 
Research
DC Motor Drives
See All Engineering Web Results for DC Motor Drives
Limit your Web search to:

DC motor drives act as an interface between a controller and the motor. The drive must match the control signals (voltage and power levels) and signal type (analog or digital). The drive produces power conversion, amplification, and sequencing of waveform signals.  Types of DC motor drives include adjustable or variable speed control, servo control, and integral motion control.  Some drives are capable of delivering adjustable or variable speed control.  Servomotors are generally small, powerful for their size, and easy to control.  Integral motion control includes feedback and a controller.  Important specifications to consider when searching for DC motor drives include considering whether or not a brushless DC motor drive or amplifier is needed.  Some DC motor drives operate in conjunction with a brushless DC motor.  Types of DC brushless motor drives include sine wave, trapezoidal, hall sensor commutation, and no sensor.  

Important operating specifications to consider when searching for DC motor drives include open loop control, positive feedback, tach or velocity module, BEMF or voltage control, torque or current control mode, switching frequency, bandwidth, maximum speed, continuous power, continuous output voltage, maximum continuous output current, and peak output current.  Open loop control uses a tachometer or other device to monitor motor speed, rather than using position feedback to control motor.  Position feedback uses position, force, or other feedback to control motor, in addition to speed sensors.  Use of feedback is referred to as "closed-loop control."  A tach or velocity mode gives direct feedback of motor speed.  A drive with BEMF or voltage control can run without a tach using the motor's Back EMF voltage.  A torque or current control module has constant current control, uses current feedback.  Switching frequency is specified for drives with digital output waves, i.e., PWM.  The bandwidth is the frequency range over which the device meets its accuracy specifications. Accuracy is degraded at lower and lower frequencies unless the device is capable of dc response, and at higher frequencies near resonance and beyond, where its output response rolls off. Frequencies in the database are usually the 3dB rolloff frequencies.  The maximum device speed is the speed when the drive is burdened with no external forces, such as weight.  The continuous power is the maximum amount of power the device can output continuously.   The continuous output voltage is the maximum voltage the device can output continuously.  The maximum continuous output current is the maximum current the device can output continuously.  Maximum current value may require additional cooling.  The peak output current is the peak current the device can output.

More >>
Products & Services Related to DC Motor Drives
AC Motor Drives
AC motor drives interface controllers to AC motors. They match the control signals (voltage and power levels) as well as the signal type (analog or digital). They also provide power conversion, amplification, and the sequencing of waveform signals.
Motion Control Systems
Motion control systems contain matched components such as controllers, motor drives, motors, encoders, user interfaces and software. Components in these systems are optimally matched by the manufacturer.
Motion Controllers
Motion controllers range from simple linear controllers to complex, user-programmable modules that act as controllers within complex integrated multi-axis motion systems.
Motor Controllers
Motor controllers receive supply voltages and provide signals to motor drives that are interfaced to motors. They include a power supply, amplifier, user interface, and position control circuitry.
Motor Speed Controllers
Motor speed controllers are electronic devices that control motor speed. They carry specifications for drive type, product classification, electrical ratings, and operating parameters.
Servo Drives
Servo drives provide electrical drive outputs to servo motors in closed-loop motion control systems where position feedback and corrective signals optimize position and speed accuracy.
Stepper Motor Drives
Stepper motor drives power unipolar and bipolar stepper motors in full step, half step, and microstep motion control applications.

Other Topics You Might Be Interested In
STD Bus
STD is often called the "blue collar bus" because of its rugged design and use in industrial and process control applications. There are three STD bus types: STD Z80, STD80, and STD 32. The STD Z80... (Read More)
VersaModule Eurocard Bus (VMEbus)
VersaModule Eurocard bus (VMEbus) is a popular, 32-bit bus used in industrial, commercial and military applications. The VMEbus is based on the VME standard, which defines mechanical specifications... (Read More)
Advanced Technology Attachment (ATA)
ATA (Advanced Technology Attachment) is a disk drive implementation that integrates the controller on the disk drive itself. It is an interface standard that extends the ISA bus of the IBM PC-AT to... (Read More)

Engineering Web: DC Motor Drives
Pages: 1 - 3 of 250
KB Electronics AC Motor | DC Motor Drives > Fan Speed...
DC Motor Speed Controls KBIC The KBIC Series of DC Drives consist of 10 OEM & 6 Distributor models ranging from 1/100 thru 3.0 horsepower.
See KB Electronics, Inc. Information
DC Motors, Gearheads, Coreless, Brushless and Small DC Motors,...
Miniature DC Motor Drive Specialists DC Motors Specialists ? MicroMo Electronics specializes in the design and assembly of the world?s
See MicroMo Electronics, Inc. Profile & Catalog
DC Motor Drives, DC Motor Drives Manufacturers, DC Motor...
Controls Drives · AC Motor Drives · DC Motor Drives
More >>

Part Numbers for DC Motor Drives
Part # Distributor Manufacturer Product Category Description
43K5272 Newark Omron Electronic Components Motors, Steppers Pcb Relay; Contacts:Spdt; Contact Carry Current:16A; Coil Voltage Dc Max:24V; Relay Terminals:Thru Hole; Coil Resistance:1440Ohm; Coil Power Vdc:400Mw; Coil Current:16.7Ma; Leaded Process Compatible:Yes; Relay Mounting:Pc Board Rohs Compliant: Yes
AFS1104CN0C PLC Radwell AVTRON Not Provided DRIVE DC 110AMP MOTOR FIELD SUPPLY
CD1800816RXS771T PLC Radwell AXOR Not Provided SERVO DRIVE 8AMP 110-170VAC FOR DC BRUSHED MOTOR
98H0665 Newark On Semiconductor All Supplier Direct Ship Motor Controller / Driver Ic; Motor Drive Current Max, Io:1A; Package/Case:16-Dip; Leaded Process Compatible:Yes; Motor Controller Type:Dc Servo Motor Controller/Driver; Peak Reflow Compatible (260 C):Yes; Supply Voltage Max:36V Rohs Compliant: Yes
32001673 PLC Radwell FENNER Not Provided DIGITAL MOTOR CONTROL FRONT END W/ DC DRIVE

More >>
View Specifications
Supplier Data Sheets
Featured Products
Motion and Controls Home
View Suppliers by State



Home   |   About GlobalSpec   |   Advertise With Us   |   Site Map   |   Top Categories   |   Terms of Use
Privacy Policy   |   Link To Our Site   |   Submit a Site   |   Recommend This Site
©1999-2008 GlobalSpec.  All rights reserved.  GlobalSpec, the GlobalSpec logo, SpecSearch, The Engineering Search Engine and The Engineering
Web are registered trademarks of GlobalSpec, Inc. The Engineering Toolbar and DesignInfo are service marks of GlobalSpec, Inc.
No portion of this site may be copied, retransmitted, reposted, duplicated or otherwise used
without the express written permission of GlobalSpec Inc.   350 Jordan Rd, Troy, NY, 12180