All Sections Texas Instruments - 9

81. Sine reference is synchronous with ac line
    Circuits Texas Instruments LM358
    Many applications require a sinusoidal reference voltage synchronized to the ac line voltage. You cannot derive such a reference voltage directly from the ac line because the waveform of the ac line is distorted because of nonlinear loads connected ...
    31-07-2023
82. Light a white LED from half a cell
    Circuits Texas Instruments SN74AUC1G14
    Whether you use them as indicators or to provide illumination, LEDs are hard to beat in efficiency, reliability, and cost. White LEDs are rapidly gaining popularity as sources of illumination, as in LCD backlights, but with forward voltages ...
    20-07-2023

83. How to recover a pulse signal with a large capacitance load
    Circuits Texas Instruments OPA365 SN7407 TLV3501
    Introduction In some applications it is necessary to transmit square waves across a long cable. However, long cables typically have high capacitance, which can significantly affect the signal’s wave shape. As such, the signal’s ...
    10-07-2023
84. Self-heated ∆Vbe transistor thermostat needs no calibration
    Circuits Texas Instruments CD4053B TLV2374-Q1
    It’s just an unavoidable fact: electronic components’ parameters drift with temperature. Even the most stable voltage references, op amps, crystal oscillators, etc., have non-zero temperature coefficients. These effects can be mitigated ...
    04-07-2023
85. Shannon decoder DAC meets UART
    Circuits Texas Instruments LMC555 TLV2371
    If you need to quickly and inexpensively convert a binary number into a proportional analog voltage, one cool (and easily remoted) way to do it is: 1. Serialize the number into a bit stream with the LSB output first, 2. input the resulting stream ...
    29-06-2023
86. Nonlinearities of Darlington airflow sensor and VFC compensate each other
    Circuits Texas Instruments LM10 LMC555
    Self-heated thermal airflow sensors are simple, cheap, rugged, and sensitive. However, they exhibit an airspeed to sensor temperature response ( King’s Law ) that is very nonlinear, as shown in Figure 1. Figure 1. The TO-92 junction ...
    21-06-2023
87. ∑-∆ Isolation amplifier transfers low frequencies across barrier
    Circuits Texas Instruments LM393 SN74HC14
    The isolation amplifier circuit of Figure 1 is simple but accurate. With the values shown it converts 0 to 5 V DC or low frequency signals with unity gain, but you can adjust the gain by changing R4. Figure 1. The floating sigma-delta converter U1 ...
    15-06-2023
88. Circuit precludes common-mode conduction
    Circuits Texas Instruments SN74HC14
    When driving an H-bridge or a similar circuit, you usually must ensure that two or more transistors are not on at the same time. Eliminating multiple transistors from turning on reduces power consumption and lowers EMI (electromagnetic ...
    02-06-2023
89. Use a low-cost PWM ramp generator in switch-mode power supplies
    Circuits Texas Instruments LM393
    The circuits in Figures 1 and 2 shows a PWM (pulse-width-modulated) ramp generator that you can use in low-cost switch-mode dc/dc power supplies. Its supply voltage can range from 5 to 35 V dc, and you can set the output-ramp amplitude of 0.3 to 1 ...
    26-05-2023
90. Designing a wideband analog voltage and current meter. Part 2
    Circuits Texas Instruments LM4562
    First and second amplifiers and range switch The schematic is shown in Figure 3. Figure 3. First and second amplifiers and range switch. The switching is arranged so that there are no unused resistors attached to the signal circuit; they are ...
    25-05-2023

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