After a major water leak flooded my home, I realized alerts alone weren’t sufficient—I needed automatic shutoff. This project combines a hacked Gröhe Guard system, an Arduino Nano, an ESP32, and the ...
A recent Design Idea, “Three discretes suffice to interface PWM to switching regulators,” demonstrated one way to use PWM to control the output of a typical switching voltage regulator. There were ...
Some high-frequency radiation issues in power supplies can be resolved by simply adding a common mode inductor or incorporating some RC absorption circuits. However, when it comes to low-frequency ...
Several years ago, I published a design idea (See Figure 1: “Cancel PWM DAC ripple with analog subtraction,” November 28, 2017) showing a simple trick for the cancellation of PWM output ripple. It ...
Deciding between PWM and DC case fans can be confusing, but it’s important for the optimal performance of your computer. In general, PWM fans are quieter, more controllable, and more durable than DC ...
In the design of power systems, high-frequency radiation interference is often effectively suppressed by adding common-mode inductors or RC absorption circuits. However, when issues involve ...
Webasto has been granted a patent for a method to check semiconductor switch faults. By evaluating current measurements or voltage pulses based on duty cycle, faults like short circuits or open ...