Recent blog posts
  • Industrial Strength
    • Aug 17, 2017

    Designing with PIR motion detectors: part 1

    Imagine waking up in the middle of the night to find that all of your motion-sensitive lights have suddenly turned on. Now you’re stuck wondering whether there is a stranger in your home or if Fluffy the dog simply triggered the lights while on a quest for a midnight snack. This is just one example of why false trigger avoidance is necessary in...
  • Analog Wire
    • Aug 17, 2017

    Debugging an integrated ADC in a microcontroller using an oscilloscope

    You probably don’t reach for an oscilloscope first when debugging an analog-to-digital converter (ADC) integrated into a microcontroller (MCU). But an oscilloscope can help you make sure that the ADC operates as expected. In this blog post, I’ll use the C2000™ Piccolo™ F28027 MCU as an example to show you how. The precise...
  • Behind the Wheel
    • 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...
  • Power House
    • Aug 16, 2017

    Extra tricks to increase battery life in IoT-enabled applications

    In my previous blog post, “ Power topology choices for power-hungry devices ,” I discussed power topology choices to help conserve battery life. Today, I want to discuss other ways to extend battery life for power-hungry designs, including different software improvements and device options. Depending on the end-equipment characteristics...
  • Industrial Strength
    • Aug 16, 2017

    Design of a camera-friendly, wide-color-gamut, color-tunable RGBW LED light source – part 2

    In part 1 of this series, we discussed a few challenges associated with a color-tunable, dimmable light-emitting diode (LED) light source and the various advantages and disadvantages of dimming methods such as analog, pulse-width modulation (PWM) and shunt FET dimming. In this installment, we will discuss the need for high PWM frequency as well as...
  • Think. Innovate
    • Aug 15, 2017

    4 ways we’re investing $6.2 million in STEM education

    STEM skills are survival skills for students today. That’s why we are committed to improving STEM education by arming teachers and students with the resources they need to succeed. TI and the TI Foundation have committed $6.2 million in ...
  • Power House
    • Aug 14, 2017

    Create a power supply for a MRI application

    Magnetic resonance imaging (MRI) uses a large magnet and radio waves to look at organs and structures inside your body. There are a number of challenging design requirements when designing a power supply for MRI applications. Because of the sensitivity of the measurements made by an MRI machine, the oscillator frequency of the power supplies needs to...
  • Power House
    • Aug 11, 2017

    Decoding power module derating curves

    As electronics get smaller and smaller, power-supply designers must consider thermal limits when designing their power supplies. A smaller power supply is not useful if it cannot operate at a heavy load inside a specific application environment, which includes the ambient temperature. One common thermal limit is represented in a derating curve, which...
  • Motor Drive & Control
    • Aug 10, 2017

    Integrated intelligence part 1: EMI management

    Intelligent integrated motor drivers and brushless DC (BLDC) motors can both help electric vehicles and next-generation automobiles become more attractive, viable, and reliable. Integrated motor drivers combine everything required to drive a motor, such as field-effect transistors (FETs), gate drivers, and state machines, as shown in Figure 1. Integration...
  • Analog Wire
    • Aug 10, 2017

    Transimpedance amplifier designs for high-performance, cost-sensitive smoke detector applications

    This post is co-authored by Collin Wells . Photodiode-based light sensing is a common technique where operational amplifiers (op amps) are used to condition a photodiode sensor for a wide range of applications. An example of this is in smoke detectors, where a photoelectric smoke alarm is used to identify the presence of smoke in the chamber. ...
  • University Program
    • Aug 10, 2017

    Teaching IoT with the TI LaunchPad™ development kit

    It’s no secret that when students get into the industry, they will need to have a basic understanding of IoT and how it works within embedded systems. Below we’ve compiled resources and materials to help you teach IoT in your courses using the TI LaunchPad™ development kit, ARM® Cortex®-M and TI's Real-Time Operating System...
  • Power House
    • Aug 10, 2017

    Another chance to catch the 2016/2017 Power Supply Design Seminar

    For nearly four decades, the Texas Instruments Power Supply Design Seminar has brought in-person training from power-supply experts directly to customers. For each seminar, we carefully choose topics under guidelines set by Bob Mammano. Ultimately, each topic selected must be useful, educational and interesting. We take pride in the fact that the...
  • Power House
    • Aug 9, 2017

    Power topology choices for power-hungry devices

    It is hard to choose a power topology for a wireless design when there are so many power-management integrated circuits (IC) out there. It may be hard to tell where to start, so I always start at the selection basics. The application of the design and onboard devices will determine the different voltage rails needed for operation. Consider a smart...
  • Think. Innovate
    • Aug 8, 2017

    One to Watch: For Darnell Moore, community involvement means full STEAM ahead

    In our ongoing series, ‘One to Watch,’ we profile TIers who are making a difference through innovation or citizenship. For Darnell Moore – a technology leader, mentor, and champion of diversity and inclusion – traditional ST...
  • Industrial Strength
    • Aug 7, 2017

    Quantifying harmonic distortion - Effect of sinc3 filter roll off (part 3)

    In the second installment of this series , I briefly talked about the attenuation of frequencies due to the sinc 3 digital filter. In this installment, I’ll quantify the theoretical degradation due to a sinc 3 filter and talk about how the Multiphase Power Quality Measurement with Isolated Shunt Sensors Reference Design reduces this degradation...