Power Management
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# 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, Engine control systems

# 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.

Posted in: Products, Power Management, Manufacturing & Prototyping, Motion Control, Power Transmission

# Self-Powered Intelligent Keyboard Could Provide Additional Security

By analyzing such parameters as the force applied by key presses and the time interval between them, a new self-powered, non-mechanical, intelligent keyboard could provide a stronger layer of security for computer users. The self-powered device generates electricity when a user’s fingertips contact the multi-layer plastic materials that make up the device.

Posted in: Articles, News, Board-Level Electronics, Computers, Electronic Components, Electronics, Electronics & Computers, Power Management, Energy, Energy Harvesting, Semiconductors & ICs

# Automotive Circuit Protection Using High-Reliability TVS Diodes

### Diode technology eliminates transient surges and enhances vehicle safety.

Designing automotive electronics presents numerous technical challenges, including the need to protect against electrical hazards. The three major sources of electrical hazards in automotive systems are electrostatic discharge (ESD), switching loads in power electronics circuits, and lightning. Overcoming these transient surges that can harm the vehicle’s electronics, whether under the hood or in the cabin, is one of the biggest obstacles of system design.

Posted in: Briefs, Automotive, Electronics & Computers, Power Management, Electrical systems, Electronic equipment, Electrical systems, Electronic equipment, Systems engineering, Hazards and emergency management, Hazards and emergency operations

# A Resistive, High-Voltage, Differential Input Interface in a 3.3-V BiCMOS 0.5-μm Process 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, Electronics & Computers, Power Management, Semiconductors & ICs, Sensors, Electronic equipment, Electronic equipment

# Precision Current Input With Well-Defined Current Limiting for Extreme Environment Applications

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, Electronics & Computers, Power Management, Sensors, Electronic equipment, Electronic equipment

# Power Management System Keeps SpaceCube Flying

###### UltraCMOS®-based power management card Peregrine Semiconductor Corp. San Diego, CA 858-731-9400 www.psemi.com

Selected for NASA Goddard Space Flight Center’s SpaceCube 2.0 Hybrid Science Data Processor, Peregrine’s UltraCMOS®-based power management solution is delivering uninterrupted high performance while meeting the radiation-hardened and extreme-temperature requirements on the International Space Station. The regulators feature integrated switches that help the design team meet its goals of delivering order-of-magnitude improvements in on-orbit computing performance over traditional flight computing systems.

Posted in: Application Briefs, Electronics & Computers, Power Management, Semiconductors, Spacecraft

# Aircraft with Hybrid Engine Can Recharge in Flight

Researchers from the University of Cambridge, in association with Boeing, have successfully tested the first aircraft to be powered by a parallel hybrid-electric propulsion system, where an electric motor and gas engine work together to drive the propeller. The demonstrator aircraft uses up to 30% less fuel than a comparable plane with a gas-only engine. The aircraft is also able to recharge its batteries in flight, the first time this has been achieved.

Posted in: News, Aerospace, Aviation, Batteries, Electronics & Computers, Power Management, Green Design & Manufacturing, Motion Control, Motors & Drives, Power Transmission

Have you attended an electronics or design tradeshow lately? Have you visited a big-box retailer or browsed an online electronics vendor? If so, you’ve probably seen many examples of wearable technology, including smart glasses, clothing, wristwear, footwear, neckwear, and headbands. Wearable computing is one of the hottest consumer electronics trends on the market, with global sales expected to grow from $14 billion in 2014 to over$70 billion in 2024, according to IDTechEx.

Posted in: Articles, Electronic Components, Electronics & Computers, Power Management, Electronic equipment, Electronic equipment