Articles Texas Instruments - 8

71. Extend the input range of a low-dropout regulator
    Jeff Falin
    Supply Texas Instruments TPS79228
    Because of process limitations, all ICs have an input-voltage limitation. This limitation can be cumbersome when you try to step down a high supply voltage to a lower, regulated voltage using a dc/dc converter, such as a linear regulator. Adding a ...
    Jan 22, 2019
72. How to Measure Current, Power for Improved System Monitoring
    Lou Frenzel
    Analogue Design Measurement Supply Texas Instruments INA190 INA300
    Often used for overcurrent protection, current-sense amplifiers are now finding homes in a wide array of applications, including automotive electronic fuses and three-phase motor control. If you're seeking a way to measure current and power in ...
    Dec 20, 2018

73. Voltage Reference Bests Zener Diode as Low-Current Bias Source
    Robert Hanrahan
    Supply Texas Instruments ATL431 LM385 LM4040 TPS2513
    Zeners are commonly used as low-current sources for bias voltage functions, but the proper voltage reference can give the same result and with much-lower dissipation and no performance tradeoffs. There are times when you need to bias a low-current ...
    Dec 20, 2018
74. Power and Energy Monitoring with Digital Current Sensors
    Measurement Texas Instruments INA233 INA219 INA226 INA231 INA3221
    Dennis Hudgins, Texas Instruments As the demand for power efficient systems continues to grow, accurately monitoring system power and energy consumption is increasingly important and is a problem more engineers must solve. One solution to this ...
    Aug 15, 2018
75. The 78xx Linear Regulator Story - A Look Back and into the Future
    Supply History of Electronics Texas Instruments LM7800
    Cabe Atwell Electronic Design The venerable 78xx series continues to march on in an array of electronic devices, but competition in this space has heated up from multiple companies. It’s become a matter of debate as to precisely when the 78xx ...
    Jul 23, 2018
76. Signal distortion from high-K ceramic capacitors
    Capacitors Texas Instruments OPA1611
    John Caldwell, Texas Instruments EDN Introduction Multilayer ceramic capacitors (MLCCs) are used extensively in modern electronics because they offer high volumetric efficiencies and low equivalent series resistances at attractive prices. These ...
    Jun 5, 2018
77. Measuring Stability In A Logic-Gate-Based Oscillator
    Oscillators Measurement Digital Texas Instruments CD74HC14
    Shyam Sunder Tiwari Electronic Design Designers seeking a quick and easy frequency source often use a relaxation oscillator (Fig. 1) based on digital gates such as the 74HC14 inverter with hysteresis. The oscillator is also useful in sensor signal ...
    May 10, 2018
78. Use Current to Drive Solenoid, Relay from Array of Voltages
    Drivers Texas Instruments DRV110 DRV120
    James Lockridge, Texas Instruments Electronic Design Rather than use a fixed-rail voltage source, it’s more efficient and flexible to utilize a current source so that performance remains consistent while supply rail and coil resistance ...
    Apr 10, 2018
79. Circuit Ensures Smooth "Soft Start" for Isolated Converter, Limits In-Rush Current
    Supply Texas Instruments LM5025
    Mangjing Xie Electronic Design Isolated dc-dc converters are prone to excessive in-rush current, but a small soft-start circuit can solve the problem and limit that current. Most dc-dc converters require a soft-start circuit to limit the in-rush ...
    Apr 1, 2018
80. Make sure your optocoupler is properly biased
    Optoelectronics Supply Texas Instruments TL431 UCC2897A
    Brian King, Texas Instruments EDN In isolated power supplies, optocouplers pass the feedback signal across the isolation boundary. Optocouplers contain both a light-emitting diode (LED) and a photo detector. Current flowing through the LED results ...
    Feb 15, 2018

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