How a motor ramps its angular position or rotational velocity from a starting point to the intended target value is a complicated topic which modern motor controllers address in many ways. Part 2 of this article looked at the basic ramping trajectories of the motion-control system. This final part briefly explores some standard motion-control ICs […]
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Basics of motion-control profiles, Part 2: Ramp profiles
How a motor ramps its angular position or rotational velocity from a starting point to the intended target value is a complicated topic which modern motor controllers address in many ways. Part 1 was an introduction to issues related to motor and motion control. This part will focus on the topic of motor ramping and […]
Tools: Galileo and the sector
Galileo was born the same year as William Shakespeare. He was a builder or instruments and used them to measure earthly and extraterrestrial phenomena. He published his findings, only to become embroiled in disputes with the religious authorities. In a trial before the Inquisition, he was compelled to recant his views and he spent his […]
IMS2021: Live event was never in doubt
While the International Microwave Symposium will also hold a virtual conference, exhibitors insisted on a live event albeit with COVID-19 restrictions.
Basics of motion-control profiles, Part 1: Context
How a motor ramps its angular position or rotational velocity from a starting point to the intended target value is a complicated topic which modern motor controllers address in many ways. Controlling the motion of a motor is a major design challenge since how a well a possible motor choice can ramp its speed and […]
APEC 2021 plenary and rap sessions included in free exhibits-only registration
Exhibits-Only Registration is now open for the annual Applied Power Electronics Conference (APEC 2021) presented this year as a virtual event, June 14-17, 2021. In keeping with APEC tradition, exhibits-only registrants will also have access to the Plenary Sessions and Rap Sessions held through the three days of the conference. Hosted on the robust event […]
What sensors make the latest Waymo Driver smarter?
You may read about the 5th-generation Waymo Driver but until you see one on the road, it is hard to appreciate the extent of its sensing capabilities. Sensors are visible everywhere on the all-electric Jaguar I-Pace SUV. In fact, each visible mounting location has more than one sensor. To consistently obtain the amount of information […]
Sigma Delta ADC vs. SAR vs. Pipeline: How to Choose
Assuming that you are familiar with the fundamental specifications of an ADC and what they mean, the next step is to know your entire signal chain well and then work to fit the ADC to the requirements. After carefully determining signal chain requirements, then select your ADC with the understanding that if the ADC is […]
Integration and differentiation operations and how they appear on a scope
Differential calculus is the study of rates at which quantities change. To find the derivative of a waveform at a specific point, we draw a tangent line through the point. The slope of the line, Δy/Δx, equals the derivative of the function at that point. Integral calculus quantifies the area bounded by a curve and […]
Understanding the lock-in amplifier, Part 2: The homodyne solution
The lock-in amplifier allows tiny signals from sensors to be captured with precision despite unavoidable noise limitations and other test and measurement challenges of the signal chain. Part 1 of this article looked at the changes of capturing low-level signals such as from a photodetector despite unavoidable signal-path noise, drift, offsets, and other imperfections. This […]