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Category: Electrical Engineering

Mizzou Engineering Highlights Research – University of Missouri College of Engineering

Dean Elizabeth G. Loboa presented the winners of the third annual Research Day student poster session: (l-r) first place winner Taher Hajilounezhad, second place winner Hamed Majidifard and third place winner Weiyu Feng. Lafferre Hall was bustling with activity March 5 as the College celebrated its third annual Research Day. The College’s research drives innovation and new technology, while exposing Mizzou Engineering students to cutting-edge ideas and discoveries, preparing them to become the engineering leaders of tomorrow. Twenty-four student poster…

Controlling Brushed DC Motors Using PWM

Many applications using miniature brushed DC motors require motors to operate at more than one load point or through specific load cycles. Running a motor at usable load points requires a variable, controllable power source. This can be done by a continuous linear regulation power supply or pulse width modulation (PWM). Linear regulation is generally inefficient and a requires a larger housing. Moreover, in battery-driven applications, it is impractical to use linear regulation at varying load points. PWM voltage regulation,…

Automotive Digital Quad Isolator First to Meet “Grade 0” Temp Spec—Transceiver Follows Suit

Download this article in PDF format. The automobile is changing right before our eyes. It’s gradually morphing from a traditional internal-combustion-engine (ICE) vehicle into a hybrid electric vehicle (HEV), and then to an all-electric vehicle (EV). Next comes the fully autonomous vehicle (AV). During these changing times, cars and trucks have evolved into significant electric/electronic platforms. Multiple electromechanical components added for safety and improved handling, including advanced driver-assistance systems (ADAS), have added to the load. Modern vehicles have also become…

Design of inorganic materials for brain-like computing — ScienceDaily

That future may not be now, but it’s one step closer, thanks to a Texas A&M University-led team of scientists and engineers and their recent discovery of a materials-based mimic for the neural signals responsible for transmitting information within the human brain. The multidisciplinary team, led by Texas A&M chemist Sarbajit Banerjee in collaboration with Texas A&M electrical and computer engineer R. Stanley Williams and additional colleagues across North America and abroad, has discovered a neuron-like electrical switching mechanism in…

How to Design the Latest Automotive Electrical Systems

Download this article in PDF format. The automobile is changing right before our eyes. It’s gradually morphing from a traditional internal-combustion-engine (ICE) vehicle into a hybrid electric vehicle (HEV), and then to an all-electric vehicle (EV). Next comes the fully autonomous vehicle (AV). During these changing times, cars and trucks have evolved into significant electric/electronic platforms. Multiple electromechanical components added for safety and improved handling, including advanced driver-assistance systems (ADAS), have added to the load. Modern vehicles have also become…

Increasing Step Motor Torque Without Increasing Frame Size

Step motors provide accurate position control without the need for feedback, traditionally in open-loop control schemes. A stepper motor’s shaft normally makes discrete angular movements of essentially uniform magnitude when driven by a DC power supply. One digital pulse causes one increment of angular movement for the step motor. As the digital pulses increase, the step motor rotates. A specific number of pulses move the motor to an exact position. Step motors are the preferred technology for many motion control…

Scientists one step closer to understanding the mystery of matter in the universe — ScienceDaily

Scientists at the University of Sussex have measured a property of the neutron — a fundamental particle in the universe — more precisely than ever before. Their research is part of an investigation into why there is matter left over in the universe, that is, why all the antimatter created in the Big Bang didn’t just cancel out the matter. The team — which included the Science and Technology Facilities Council’s (STFC) Rutherford Appleton Laboratory in the UK, the Paul…

Joint Effort to Develop T&M Capabilities for UWB Technologies

This article appeared in Evaluation Engineering and has been published here with permission. Curve tracers are electronic test devices that are similar to oscilloscopes in many ways. Fundamentally, these instruments operate by varying a parameter, then measuring a separate one to produce data for analysis referencing the characteristics of semiconductors such as diodes, transistors, and thyristors. They’re particularly useful for semiconductor failure analysis and parametric characterization. By 1955, when Tektronix introduced the industry’s first curve tracer, the company had already…

Offshore wind farms could power much of coastal China — ScienceDaily

Under the Paris Climate Agreement, China committed to rely on renewable resources for 20 percent of its energy needs by 2030. Currently, the country is on track to double that commitment, aiming to hit 40 percent by the next decade. Wind power is critical to achieving that goal. Over the past 20 years, China’s wind power capacity has exploded from 0.3 gigawatts to 161 gigawatts. But, in recent years, that growth has slowed and the hopes for China’s wind-powered future…

Women in Engineering Week: Shining a Light on Diversity

Lisa Crader and Peyton Flewelling at the Coffee with RSVP (Relationship & Sexual Violence Prevention) Center Advocates, one of the WIE Week events that the College hosted on Wednesday. The MU College of Engineering is a welcoming, inclusive college, and that message was the theme and the focus of Women in Engineering (WIE) Week, Feb. 17 – 21. Events got underway Feb. 17 with a kick-off social in Lafferre Hall, where Mizzou Engineering students had an opportunity to meet with…