Reducing Power-On/Off Glitches in Precision DACs

Voltage glitches are common in a signal chain path, especially when the system is being powered up or down. Depending on the peak amplitude and glitch duration, the end result in the system output can be catastrophic. One example is an industrial motor control system where a digital-to-analog converter (DAC) drives the motor drivers to control motor spin. If the glitch amplitude is higher than the motor driver’s sensitivity threshold, the motor could be spinning without control in any direction when the system is powered up/down.

Posted in: Briefs, Power Management, Motors & Drives


Servo Drive

Elmo Motion Control (Nashua, NH) offers the NANO Gold Twitter servo drive that delivers up to 4000 Watts of qualitative power, current up to 50A at 100VDC, and up to 15A/200V with advanced servo capabilities and support for EtherCAT or CANopen networking communication. It weighs 18 grams, is less than 13 cm3 in volume, and complies to safety, EMC, and environmental standards. For Free Info Visit http://info.hotims.com/55588-315

Posted in: Products, Power Management, Power Transmission


Linear Motors

Heidenhain (Schaumburg, IL) offers ETEL ILF and ILM series ironless high-speed linear motors for use in the semiconductor and electronics industry. The motors utilize an ironfree coil design for zero-attraction force between the carriage and the magnetic way. The ILF is a smallersized motor for very high dynamic and low-moving mass applications; the ILM is a more powerful version of the ILF, and has an option to be air-cooled to increase continuous force output. The ironless motors come in a variety of lengths and heights with different degrees of force, and share the same profile so that one is interchangeable with the other. The motors can reach speeds of up to 20 m/s and peak force of up to 2,500 N. They are designed for direct drive applications and offer no backlash, fewer parts, and require no maintenance. For Free Info Visit http://info.hotims.com/55588-304

Posted in: Products, Electronics, Motors & Drives


SWaP-C and Why Your Component Partner Matters

Is SWaP-C important to your project? Then working with the right contract manufacturer is critical to your success. From knowing the unique requirements of military requirements to having the capabilities to maximize component functionality, the right partner for your project can help you decrease the size, weight, power and cost of your electronics. Discover how to select the right partner and what questions to ask in our white paper, “SWaP-C and Why Your Component Partner Matters.” Download it now and learn techniques for ensuring that your next project is a successful one.

Posted in: White Papers, Electronics


Self-Diagnostic Accelerometer Field Programmable Gate Array

The system could be utilized as a portable and temporarily installed diagnostic system. John H. Glenn Research Center, Cleveland, Ohio The development of the self-diagnostic accelerometer (SDA) is important to both reducing the in-flight shutdowns (IFSD) rate — and hence reducing the rate at which this component failure type can put an aircraft in jeopardy — and also as a critical enabling technology for future automated malfunction diagnostic systems. Critical sensors, such as engine sensors, are inaccessible to the operator during typical operation due to safety concerns and enclosed environment. The SDA can diagnose the sensor in-flight and remotely with minimal interference with the typical operation of the sensor. The SDA system utilizes programmed health algorithms that can automatically determine the health, therefore increasing the precision in diagnosing sensor faults by removing the erroneous perspective and opinions of a human operator. The health of the sensor could also be determined immediately, which would remove its erroneous effect on a system that depends on the sensor.

Posted in: Briefs, TSP, Power Supplies, Thermal Management, Sensors


Capacitively Coupled, High-Voltage Current Sensing for Extreme Environments

NASA’s Jet Propulsion Laboratory, Pasadena, California Wide-temperature and extreme-environment electronics are crucial to future missions. These missions will not have the weight and power budget for heavy harnesses and large, inefficient warm boxes. In addition, extreme-environment electronics, by their inherent nature, allow operation next to sensors in the ambient environment, reducing noise and improving precision over the warm-box-based systems employed today.

Posted in: Briefs, TSP, Electronic Components, Power Supplies, Thermal Management, Sensors


E-Textile Interconnect

Devices constructed from e-textiles have applications in law enforcement, by first-responders, and in wireless communications and computing. Lyndon B. Johnson Space Center, Houston, Texas E-textiles have shown great promise within the microwave and antenna community to provide a low-mass, highly conformal option that integrates extremely well with fabric-based microwave devices and antenna platforms, but often not as well with more conventional devices.

Posted in: Briefs, TSP, Antennas


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