Products

Linear Motor Tables

The Dover (Westborough, MA) MMG Mini-Mag line of precision linear motor tables are now available in aluminum-based versions with an optional single phase motor to reduce controller complexity, system footprint and cost. For XY sample positioning, sustained throughput of up to 2,000 moves per minute is possible. For focal plane definition, the optimum Z position of the magnifying objective is determined, and the vertical objective positioning moves (

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UV Fluorescent Conformal Coating

Specialty Coating Systems (Indianapolis, IN) has introduced a new technology, SCS Parylene C-UVF™, a coating that fluoresces under a specific spectrum of UV light, enabling customers to identify and verify that their components are protected. Traditional Parylene coatings are ultra-thin and optically clear, making identification of coated components difficult. SCS Parylene C-UVF coatings are formed when a special compound is incorporated into the deposition process. The resultant coating is still ultra-thin, optically clear, and maintains the same electrical, mechanical and physical properties of SCS Parylene C, but it fluoresces under UV light.

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Photovoltaic System ICs

National Semiconductor Corp. (Santa Clara, CA) introduced new SolarMagicTM integrated circuits (ICs) to reduce cost, improve reliability, and simplify design of photovoltaic (PV) systems. Ranging from a full-bridge gate driver to a micropower voltage regulator, the new ICs are well-suited for a variety of photovoltaic electronic applications, including those found in microinverters, power optimizers, charge controllers, and panel safety systems.

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Dual Ideal Diode

Linear Technology Corporation (Milpitas, CA) introduces the LTC4227, a compact, dual ideal diode with Hot Swap™ controller that provides PowerPath™ and inrush current control for redundant supplies operating from 2.9V to 18V. The LTC4227 regulates the forward voltage drop across two external N-channel MOSFETs to ensure smooth current transfer between supplies in diode-OR applications.

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Power Factor Correction ICs

International Rectifier (El Segundo, CA) has introduced the IR115x family of µPFC™ power factor correction (PFC) ICs for a wide variety of AC-DC applications including lighting, LCD/PDP TV and game console Switch Mode Power Supplies (SMPS), fans, air conditioners, and uninterruptible power supplies (UPS) ranging from 300 W to 8 kW.

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EX1200-1538 Multifunction I/O Card

VTI Instruments Corp., Irvine, CA, has released the EX1200-1538 multifunction I/O card that delivers eight channels of independent 1-MHz frequency/32-bit counter inputs, 16 channels of isolated digital I/O, and two channels of isolated analog output (DAC) in a single instrument. The instrument is suited for electronic functional test (ATE) and data acquisition (DAQ) applications, including precision frequency and counter/timer measurements in ATE systems, motion or position measurements from rotating shafts, and monitoring the speed of motors or turbines. It is used in industrial control applications such as relay actuation, speed control, and simulation requiring protection against high common mode and transient voltages. Time and frequency domain measurement accuracy is obtained with electronic counter implementation. The instrument can directly measure frequency, totalize counts, RPM, and quadrature input signals. The isolated digital I/O and DAC output channels provide the ability to directly measure and control a range of industrial systems, and can be combined to achieve expanded voltage and current levels.

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2010 Product of the Year Winners

The 16th annual NASA Tech Briefs’ Readers’ Choice Products of the Year have been chosen. Thanks to all of our readers who voted. Your winners are:

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Multi-Axis Servo Drive

Galil Motion Control (Rocklin, CA) has announced the AMP- 43240 4-axis servo drive that provides up to 750W per axis. It resides inside the DMC-4040 or DMC-4143 4-axis motion controller enclosure. The packaging of the multi-axis drives with the motion controller is designed to save space and wiring. The drive contains four transconductance PWM amplifiers for driving brushless servo motors at 20-80 VDC. Each amplifier drives motors operating up to 10A continuous, or 20A peak, per axis. The gain settings of the amplifier are user-programmable at 0.5, 1.0, and 2.0 Amp/Volt. The switching frequency is 24 kHz. The amplifier offers protection for over-voltage, under-voltage, over-current, short-circuit and over-temperature. A shunt regulator option is available.

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Motor-Control Module

STMicroelectronics (Geneva, Switzerland), has announced the SPIMD20 motor-control module that mounts directly on the motor, in addition to providing connection via industrial Ethernet. The unit can drive brushless 3-phase motors up to 2kW, and incorporates semiconductor technologies, including 1200V/40A IGBT power switches and the TD352 gate driver. Two STM32 microcontrollers provide a processing engine for motor control and networking functions. A real-time communication interface supporting protocols such as EtherCAT® and CANopen® DS402 is provided. Basic firmware supporting network connectivity and featuring PWM driving, current loop, and speed-loop execution synchronized to the Fieldbus is also available.

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DC Gear Motors

Nidec Copal (USA) Corp. (Torrance, CA) has introduced a RoHS family of four 12-mm miniature DC gear motors that develop high shaft torque ranging from 0.28 oz-in to 6.94 oz-in. Rated shaft speeds range from 1400 rpm to 40 rpm. The motor’s axial length is 1.023". Input voltage levels range from 4.5 to 6.0 VDC. Rated current levels do not exceed 250 milliamps. Operating temperature ranges from 30 to 70 °C. They weigh less than 0.35 ounces.

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