Category Archives: Linear Amplifier
Motion Control – Redundant Coil Voice Coil Motor Available from H2W Technologies, Inc!
Motion Control Redundant Voice Coil Motor from H2W Technologies!
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Santa Clarita, CA —–
When three-phase AC power is applied to the primary, a travelling electromagnetic flux wave is induced and moves relative to the primary. The wave induces an electric current in the conductive reaction plate. The induced electric current interacts with the magnetic flux to produce a linear force. The speed of the motor can be varied by changing the input frequency using an adjustable frequency drive.
Each coil pair operates as its own voice coil.
Redundancy is a requirement on many flight systems in a special case when one coil faults, the other can be used to make the motor “fault-resistant”.
Other systems require simplified circuitry which would not allow the change of current polarity in order to change the direction, in these cases each coil can be used to drive the coil in a single direction. The challenge in manufacturing a redundant coil is ensuring the same performance no matter the coil, which requires precise manipulation of the magnetic circuit design, and the precise coil layout to ensure the identical operation and constants for each coil. This will allow the controls to seamlessly switch between the two coils.
There are two ways of accomplishing this coil redundancy. The most common way would be to generate multiple coils operating on individual magnetic circuits. This requires a longer coil and multiple magnetic circuits; however this is the most robust design and the least vulnerable to damage or interference from the redundant coil. The NCC08-18-025-2R2C is an example of the multiple coil design. An alternate method, which allows for the most compact solution, would be a multi-filar wind. This method only requires one magnetic circuit, which is why the length is shorter. In this case multiple coils are wound in the same winding space.
About H2W Technologies, Inc.
H2W Technologies, Inc. is dedicated to the design and manufacture of linear and rotary motion products that are used in the motion control industry. The complete line of linear electric motors includes: Single and dual axis linear steppers, DC brush and brushless linear motors, voice coil actuators, and AC induction motors. Also offered is a complete line of ball screw, lead screw and belt driven positioning stages.
Other motion control products include: Limited angle torque motors for compact, limited angular excursion rotary servo applications, 3 phase brushless rotary servo motors with matching digital servo amplifiers and permanent magnet linear brakes for fail-safe, zero power braking for baggage handling and people moving applications as well as amusement park rides.
With over 75 years combined experience in the linear and rotary motion field, the H2W Technologies team of engineers offers the optimal solution to the most demanding motion control, requirements.
See Product: https://www.h2wtech.com/product/voice-coil-actuators/NCC08-18-025-1R2C”
For additional information contact Mark Wilson at H2W Technologies, 26380 Ferry Ct, Santa Clarita, CA 91350; Tel: 888-702-0540, Fax: 661-251-2067, E-Mail: info@h2wtech.com or visit the website at http://www.h2wtech.com
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Motion Control – Linear Servo Controller Amplifier to Control Voice Coil Motors
Sunnyvale, CA, — Motion Control – The SCA814 Linear Servo Controller was specifically designed to control single phase, non-commutated devices like voice coil motors. like it’s field proven predecessor the SCA754 is a high performance single axis DC motor controller and amplifier system. It is comprised of a highly integrated single PC board level product with a cohesive interface. This card provides current amplification and analog servo control interfaces. The single-phase characteristic of the current amplifier makes it particularly well suited for DC motors such as galvanometers and voice coils. It was specifically developed for control of motor applications requiring both high temporal and spatial servo precision, such as machine vision, inspection, scientific imaging, medical imaging and other business applications. This amplifier interfaces directly to many of the Equipment Solution motor/stage solutions.
Besides galvanometers the SCA814 is directly compatible with all the ESI linear voice coil stages and the optical scanners. A bipolar linear or switching regulated power supply is required by the SCA814 amplifier. Typically better performance can be achieved when using a linear power supply. Equipment Solutions has several high-current supplies for this purpose including the SPS15 ±15V DC Switching Power Supply .
Click Here for
- Specifications
- Servo Diagram
- Interface Drawings
- Downloads
Equipment Solutions, Inc. (ESI) is a provider of engineering and manufacturing services. ESI specializes in the design and production of automation and instrumentation products including motion control components and sub systems. ESI’s products range from galvanometer amplifiers with an integrated arbitrary waveform generator, to high-resolution displacement sensors, voice coil and stepper motor stages, amplifiers and controllers.
For additional information contact Jeff Knirck at Equipment Solutions, 1098 W. Evelyn Ave. Suite #102; Sunnyvale, CA 94086; Tel: 408-245-7161, Fax: 408-245-7160, E-Mail: info@equipsolutions.com or visit the Website at http://www.equipsolutions.com
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Wide, High Accuracy, Low Cost Linear Motion Systems Resist – Roll, Pitch, and Yaw!
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Longmeadow, MA – Linear Motion Control –The low cost, wide, stable platforms of the SAIBO SB-LGC Linear Motion Systems are available exclusively from LM76 in two sizes to meet load requirements up to 6000 N. (1349 lbs). These wide, low profile linear motion systems feature: Low noise, smooth travel, high speed to 10 m/s (120 ft/s), high acceleration to 50 m/s (150 ft/s), low weight, high linear accuracy, sealed radial low friction bearings, low cost, and because of their wide profile they have high moment (Roll, Pitch, and Yaw) load capacities. Additionally they are easy to install, in any orientation, into new and existing applications. SB-LGC maintenance free linear motion systems have sealed for life rollers, RC60 hardened shafts, and are available in lengths to 6000 mm (263 in.)
SAIBO SB-LGC Linear Motion Platform and Rail System have an adjustable preload system to control the required level of precision needed for most applications. Capable of loads to 6000 N (1349 lbs), the very stable LGC platforms have four drilled and tapped holes for mounting tooling, cameras, test equipment, etc. For use in: Robotics, assembly, photography, pick-and-place, sorting, packaging, manufacturing, sampling, laser cutting, wafer handling, and other precision applications.
LM76, the exclusive US distributor of SAIBO linear motion components, manufacturers a broad variety of FDA & USDA compliant bearings and shafting, in inch sizes of .25 inches to 1.5 inches, and a FDA & USDA compliant profile rail and slide system that can easily be integrated into new and existing applications. The bearing options include: Self-lubricating FDA & USDA compliant Teflon® composite bearings in a 304 stainless steel shell, and lower cost bearings with a ceramic coated shell and FDA & USDA compliant liner. Bearings are available in closed and open configurations, and are drop-in replacements for all inch sized linear ball bearings.
About LM76
Founded in 1976, LM76 has been a leading designer/manufacturer of linear bearings, slides and linear motion systems. LM76 is renowned for its industry leading Minuteman PTFE Composite linear bearings. LM76 is a leading supplier of precision linear shafting: RC60, 300 Series Stainless Steel, and ceramic-coated aluminum shafting. LM76 also offers several FDA/USDA compliant linear bearings and slides for the food processing, pharmaceutical, medical, and packaging industries.
For additional information contact Mike Quinn at: LM76, 140 Industrial Dr., E. Longmeadow, MA 01028; Telephone: 413-525-4166, Fax: 413-525-3735 or E-Mail:mquinn@lm76.com or visit the website at http://www.lm76.com
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Trust Automation – Motion Control Linear Servo Amplifier Is Designed for Brush Type Motors to 85 Watts!
A tough, powerful linear amplifier, from Trust automation is built to provide quiet and smooth power to brush motors.
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San Luis Obispo, CA –The Trust Automation TA105 Linear Drive is a linear servo motor amplifier, designed to drive a brush motor with up to 85W of power. The TA105 is an excellent solution for voice coil type motors, high precision posi¬tioning applications and systems requiring ultra-quiet driving power where low noise operation is essential. The TA105 can be operated in voltage (velocity) mode or current (torque) mode, selected via a user accessible DIP switch. Fault logic is also selectable via a DIP switch.
FEATURES
- Digital on-the-fly gain control (DTS)
- Over-temperature protection
- 40W continuous/85W peak
- Integral forced-air cooling
- Very low electrical noise
- Selectable current limit
- 5.0 kHz bandwidth
APPLICATIONS
- Voice coil motors
- Small DC motors
- X-Y micro stages
- Metrology tools
TECHNICAL SPECIFICATIONS
Supply Voltage…………………..Unipolar: 15V to 48V, Absolute Max 52V
Equivalent Motor Voltage………Up to ±43V*
Maximum Output Current……..See SOA chart (Data Sheet – Safe Operating Area)
Fault………………………………..TTL Level 0 or 1
/Enable…………………………….TTL Level 0
Command Input…………………±10V (±12V Max)
Torque Gain……………………….0.05 A/V to 0.2 A/V
Bandwidth…………………………5.0 kHz**
*dependent on motor load
**into a mH load
To download Data Sheet – Click Here
To download Manual – Click Here
Since 1990 Trust Automation has provided Smart Solutions in Motion Control and Affordable Customization of motion related products.
Trust Automation, Inc. has focused on developing and manufacturing the highest quality, high performance components in the motion control market. Our innovative products address the increasing demand for higher performance and simpler machine integration and efficency. When designing products and custom solutions, Trust Automation carefully optimizes the tradeoffs among weight, efficiency, speed, precision, and power. GREENTECH High Efficiency Drives , Traction Controllers, High Efficiency Motors, and High Efficiency Generators are such examples.
Other motion control products available are: Drives, Linear Amplifiers, Controllers and Motors for: Defense, Semiconductor, Industrial Automation, and Medical applications. Additionally, Trust Automation can supply a sub-system or a complete turn-key system.
For additional information contact Sadie Rogers at Trust Automation, 143 Suburban Road, Bldg 100, San Luis Obispo, CA 93401; Tel: 805-544-0761, Fax: 805-544-4621, E-Mail: info@trustautomation.com or visit the Web site at http://www.trustautomation.com
NEW, THREE-PHASE LINEAR AMPLIFIER FOR BRUSHLESS SERVOS, ELIMINATES COGGING & TORQUE RIPPLE!
San Luis Obispo, CA – The TA320 linear three-phase servo motion control amplifier from Trust Automation, Inc. allows motion system designers to easily integrate the latest developments in sinusoidal motor control and its benefits of zero cogging, no torque ripple, and smooth motion, into applications such as, high resolution inspection systems or metrology instruments. Also, its very low electrical noise makes it ideal for integration in or near systems that have noise sensitive circuitry, such as transducers and sensors, and medical applications. Additionally, the audible noise problems associated with PWM amplifiers are eliminated.
This versatile and powerful 700 W continuous (1400W peak) linear amplifier can be configured to accept two sinusoidal commutations separated by 120 degrees with the third phase generated by the amplifier. The TA320 amplifier can be set up to operate in trapezoidal mode using hall sensor feedback or as one, two, or three single phase amplifiers. The amplifier also features DTS control which allows the transconductance (Amps/input Volts) to be changed on-the-fly. An additional benefit is that high resolution control can be maintained without having to sacrifice power capability.
Integral forced air cooling, a housing designed to protect against operator injury, easily made connections using ribbon connectors, SMB coaxial connectors, and pluggable-terminal connectors, demonstrate Trust Automation’s commitment to operator safety and ease of integration.
Trust Automation’s motion control products include: Stand-alone motion and machine controllers, SynqNet I/O and SynqNet Drives, Brushed and Brushless Rotary Motors, Interconnect Products and Automation Engineering consulting covering Mechanical, Electrical, Software and System aspects of machine design. Since 1990 Trust Automation has provided Smart Solutions in Motion Control and Affordable Customization of motion related products.
For additional information contact David Rennie at Trust Automation, 143 Suburban Road, Bldg 100, San Luis Obispo, CA 93401; Tel: 805-544-0761, Fax: 805-544-4621, E-Mail: info@trustautomation.com or visit the Web site at http://www.trustautomation.com
