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Behind the Wheel
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Matthew Sullivan
Aug 16, 2017
The seat remembers: Brushed DC motor ripple counting drives innovation in full-featured memory seats
My parents have an SUV that they share between them. When I go home, I might also use their car to visit old friends or run errands. When all three of us are using the same car, we each have to adjust the driver’s seat height, the distance from the steering wheel and the pedals, the steering wheel height, the angle of the chair back, and the angle...
Sandeep Tallada
Aug 2, 2017
Understanding current sensing in HEV/EV batteries
When I was six years old, I got a remote-control car as a present from my dad. With just a click of a button, I was able to control the car and it was running all around my home. One day, my brother and I suddenly got into a fight and broke the remote-control car into pieces. I was curious to look inside and see how it worked. I learned that remote...
John Griffith
Jul 27, 2017
Discrete SBCs: versatile and scalable solutions for any application
A system basis chip, or SBC, is an integrated circuit (IC) that combines many typical building blocks of a system including transceivers, linear regulators and switching regulators. While these integrated devices can offer size and cost savings in a number of applications, they don’t work in every case. For applications where an SBC isn’t...
Phil Beard
Jul 13, 2017
Why are you still driving automotive motors with relays?
With the advent of smaller and smarter integrated circuits (ICs) in automotive electrical systems, it’s time to start addressing the elephant in the room: Why are we still controlling motors in sunroof modules, window lifts, power locks, tailgate lifts, memory seats, compressors and pumps with relays? Sure, relays are cheap and simple to design...
George10687
Jun 22, 2017
Powering DDR memory in automotive applications
Double-data-rate (DDR) memory enables high speed and performance in many electronic systems because of its ability to read and write on both the rising and falling edge of the clock. The ability to read and write data on both edges of the clock essentially provides two times the speed without increasing clock frequency and enables faster throughput...
Markus Zehendner
Jun 15, 2017
Get loud with a 700W automotive audio amplifier for infotainment systems
Are you a fan of listening to loud music while driving? I definitely am, especially on long road trips. The 700W Automotive Class-D Automotive Amplifier Reference Design shown in Figure 1 can support up to 700W true root mean square (RMS) power, which should easily be enough power to satisfy demand for loud music lovers in automobiles. Figure...
Joe Folkens
Jun 8, 2017
Vehicle vision: beyond the crystal ball?
When we look back 20 years from now, automotive evolution will likely be considered the greatest in recent times. Future automotive evolution will be profoundly impacted by automating the task of driving. While there are many aspects to achieving safe and reliable semi-autonomous and fully autonomous driving, it’s clear it will require a “vision”...
Katrina Tuazon
Jun 7, 2017
The road to today’s digital cockpit
In my first car, there was only an AM/FM radio to keep me entertained as I relied on my own memory to get me from point A to point B. The instrument cluster was traditional, with only needles to estimate if I was driving at the speed limit or if I had enough gas for whatever small journey planned that day. Fast forward to today our lifestyles have...
Kishore
May 16, 2017
Giving cars advanced vision through TI mmWave sensors
Advanced driver assistance systems (ADAS) have rapidly evolved over the last five years, from comfort functions, such as adaptive cruise control (ACC), to safety-enhancing functions such as emergency braking and newer applications like pedestrian det...
Alexander Vainberg
May 2, 2017
Build a sub-20W CISPR25 Class 5 power design for automotive infotainment processors
In a world of always-on experiences, drivers and passengers are looking to access real-time information about traffic conditions and potential hazards via traditional radio or human machine interface (HMI) systems. At the same time, drivers and passengers want to use connected devices like GPSs, smartphones and tablets without interference. Thus, it...
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