Articles

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  1. T.K. Hareendran
    Hybrid relays are changing the way we think about switching inside electronic circuits. By combining the fast response of solid-state components with the reliability of mechanical contacts, these devices offer the best of both worlds. Whether you ...
    Oct 6, 2025
  2. Damian Bonicatto Phoenix Bonicatto
    Increasing ADC resolution Many electronic designs contain an ADC, or more than one, to read various signals and voltages. Often, these ADCs are included as part of the microcontroller (MCU) being used. This means, once you pick your MCU, you have ...
    Sep 30, 2025
  1. Michael Wyatt
    A Planet Analog article, “2N3904: Why use a 60-year-old transistor?” ( Ref. 1 ) by Bill Schweber, inspired some interest in this old transistor and how it’s commonly used, and if any uncommon uses might exist. Here’s one we ...
    Sep 28, 2025
  2. T.K. Hareendran
    This is just an ultra-quick blog post about a nostalgic IC: µPC1237. It’s a timeless bipolar analog IC from NEC designed for protecting stereo audio power amplifiers and loudspeakers. I used to see this awesome chip all the time in the ...
    Sep 23, 2025
  3. Christopher Paul
    The typical anti-log circuit The basic anti-log amplifier looks like the familiar circuit of Figure 1. Figure 1. The typical anti-log circuit has uncertainties related to the reverse current, I S , and is sensitive to temperature. The approximate ...
    Sep 22, 2025
  4. David Birks
    Beginners Diodes DMHC4035LSDQ DMTH4008LFDFWQ
    When to use over brushless alternatives Recent years have seen growing adoption of brushless DC motors. They are smoother and more efficient than brushed motors and have lower maintenance demands and higher torque-to-power ratios. On the other ...
    Sep 9, 2025
  5. T.K. Hareendran
    Arc generator modules may be small in scale, but they offer big opportunities for hands-on exploration in electronics. Whether you are experimenting with arc simulation, testing circuit behavior under fault conditions, or simply curious about ...
    Sep 9, 2025
  6. Michael Wyatt
    Back on December 3, 2024, a Design Idea (DI) was published, “Single-supply single-ended inputs to pseudo class A/B differential output amp” ( Ref. 1 ), which created some discussion about using the circuit as a full wave rectifier. The ...
    Sep 8, 2025
  7. Frederik Dostal
    Supply Analog Devices LT3573 LT8620
    Even switch-mode power supplies with a fixed switching frequency do not always show a continuing pattern of pulses. In some conditions, pulses are omitted for various reasons. This is important to consider for output ripple voltage and EMI effects. ...
    Sep 1, 2025
  8. Christopher Paul
    Several Design Ideas (DIs) have employed the subject ICs to implement programmable current sources in an innovative manner ( References 1-3 ). Figure 1 shows the idea. Figure 1. Two independent current sources, one for loads referenced to the more ...
    Aug 26, 2025