Articles Texas Instruments - 2

11. A safe adjustable regulator
    Peter Demchenko
    Supply Texas Instruments LM350
    Figure 1 shows a typical using of LM350 ( LM317 ) adjustable regulator when you need to adjust its output voltage. Figure 1. This voltage is approximately given here as: The potentiometer R2 is often the most unreliable part of the circuit. As ...
    Apr 13, 2023
12. Two wires carry power and data
    Robert Hanrahan
    Interfaces Supply Texas Instruments COP888xG/CS LMC7211 LMV7239 LP2952 LP3990
    At times, designers face a limited amount of wire and/or a limited cost to communicate with a remote device such as a sensor. Many devices allow communication over an ac or dc power line employing an AM or FM modulation scheme. However, they tend ...
    Feb 7, 2023

13. Circuits protect outputs against overvoltage
    Dimitri Danyuk
    Measurement Supply Texas Instruments OPA551
    In test-and-measurement applications, you must provide overvoltage protection for the output terminals of amplifiers, power supplies, and similar components. The conventional way to accomplish this task is to add series resistors with the output ...
    Jan 9, 2023
14. The Shannon decoder: A (much) faster alternative to the PWM DAC
    Stephen Woodward
    Signal Processing, Filters Texas Instruments CD74HC4053
    Readers will recognize the famous name Claude Elwood Shannon, widely renowned as the “father of information theory” and originator of many discoveries and inventions. Among these is an elegant and pioneering (First published in 1948!) ...
    Dec 22, 2022
15. Single Op Amp Achieves Double-Hysteresis-Transfer Characteristic
    Encarna García Herminio Martinez Juan Gámiz
    Analogue Design Texas Instruments TL081 LM311
    In process-control applications requiring discontinuous controllers, the most elementary choice is a two-position-mode or on/off controller. A typical example of such a controller is a space heater. If the temperature drops below a setpoint, the ...
    Sep 13, 2022
16. AC/DC power-supply startup considerations for PMDC motor loads
    Ben Lough
    Supply Texas Instruments TL331 UCC256402
    Permanent magnet DC (PMDC) motors offer smaller solution size and increased efficiency in applications such as portable vacuums and cordless electric power tools. When designing an isolated power supply for PMDC motors, there are several ...
    Jul 26, 2022
17. Drive LDOs To 0-V Output With Single Supply
    Petre Petrov
    Supply Texas Instruments LM350A LM431 LM385-1.2
    Many electronics circuits begin operation at voltages below 1.25 V. But popular adjustable regulators such as the LM317 , LM350 , and LM338 can provide output voltages only above 1.25 V, and the L200 minimum is higher at 2.85 V. Fixed-output ...
    Jun 7, 2022
18. Balancing power sharing of paralleled boost converters in speakers
    Youhao Xi
    Audio Supply Texas Instruments LM5155 LM8261 TPA3221
    Audio amplifiers for high-power portable speakers such as trolley speakers usually operate with lithium-ion batteries, and these batteries can vary from a single cell to a few cells in series. Designers generally use boost converters to produce the ...
    May 23, 2022
19. Inverted MOSFET helps 555 oscillator ignore power supply and temp variations
    Stephen Woodward
    Oscillators Texas Instruments LMC555
    Since its invention over a half-century ago by Hanz Camenzind at Signetics, the familiar 555 analog timer (in league with its updated pin-compatible CMOS descendants) has become an iconic design element incorporated into useful standardized ...
    May 19, 2022
20. Constant-Current Source Creates Slope-Compensation Ramp in SMPS
    Claude Abraham
    Analogue Design Supply Texas Instruments UCC28C43P
    A switched-mode power supply (SMPS) employing peak current-mode control (PCMC) requires a ramp signal to slope-compensate the inner (current) control loop. Slope compensation stabilizes the current loop, which would otherwise exhibit subharmonic ...
    May 3, 2022

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