Richard F. Zarr

Richard
F. Zarr

Richard Zarr is a technologist at Texas Instruments focused on high-speed signal and data path technology. He has more than 30 years of practical engineering experience and has published numerous papers and articles worldwide. He is a member of the IEEE and holds a BSEE from the University of South Florida as well as several patents in LED lighting and cryptography.

Articles
Protect PLCs from Transient Surges
Using careful layout and the proper protection circuitry as well as properly designed isolation can ensure years of uninterrupted service life for industrial control systems.
4K Video: The Next Revolution 2
As the new 4K Ultra High Definition (UHD) televisions arrive at your favorite outlet chain, designers are gearing up for the next dramatic change in video standards.
Ethernet Dominates Industrial Environments
In our world of connected things, Ethernet has emerged as the de facto wired interconnect. Industrial control manufacturers and IT professionals have embraced this standard as a means to replace aging proprietary machine control networks.
Motor Drivers Advance In Consumer Products
The introduction of three-phase brushless dc motors has revolutionized the reliability and efficiency of fans in consumer devices, but with added complexity.
Safeguard High-Power DC Systems Against Arc Failures
The formation of arcs in high-power systems can be extremely dangerous and lead to severe damage, if not controlled. Sensing when an arc is forming in a timely manner is paramount to interrupting the power flow before damage can occur.
Save Power In Building Automation Systems
Battery chemistries such as Li/SOCl2, high-efficiency PFM converters, and novel nano-power long-period timers can maintain extremely low power consumption during device sleep cycles, resulting in wireless building automation systems that rival their wired counterparts.
Multi-Protocol ICs Drive Data Networks
With the evolution of serialized bus architectures and the move to higher physical data rates, designers will continuously deal with channel loss as well as additional complexities such as OOB and rate adaption. Careful layout techniques can mitigate some (or all) of the channel loss for some standards.
Redefining Inductive Sensing
Historically, inductive sensing has required complex circuitry, making it costly for applications outside of industrial controls or portable metal detectors. With new integrated solutions now available, though, inductive techniques can be applied to a far wider range of applications.
Analog Signal Acquisition Enables Telemedicine 1
The integration of key components will be required to facilitate low-cost, high-performance telemedicine equipment. This includes the sensitive high-performance AFEs that touch the sensors and ultimately the patient, as well as the communications infrastructure to support the data.
Wireless Networks Drive The Connected World 4
A silent evolution is underway as a new breed of “things” connects to the Internet without any human interfaces through new lower-power wireless networks, providing new services and capabilities and leading to the next major uptick in the Internet’s ever-increasing node count.
The Evolution Of Sensor Analog Front Ends 3
The world around us is analog, and converting physical phenomena to electronic signals requires a multitude of sensor technology. Many of these sensors require a significant amount of analog circuitry to operate properly.
NRZ Vs. Multi-Level Signaling: Which Is More Efficient For Moving Bits?
The ever-increasing demand for rich content and instant access to information is dividing the communications industry into two camps: one based on tried and true non-return to zero (NRZ) binary (two-level) transmission, and a newcomer called multi-level signaling (MLS).
Industrial Environments Require Rugged Design
Industrial environments are some of the most inhospitable places on earth. And as technology has evolved, electronics have played an ever-increasing role in powering, controlling, and monitoring some of the most complex systems ever conceived by man.
LEDs Line Up To Replace Residential Incandescent Bulbs 16
As other market forces beyond efficiency drive the selection of next-generation residential light sources, LEDs are standing their ground.
Automotive Communications Demand A Robust Infrastructure 12
Today's automobiles use up to a hundred microprocessors that control every aspect of their performance. Large amounts of data must be moved over inexpensive wire in a harsh environment, presenting many challenges.
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