Power supplies use control-loop circuits to produce constant voltage or current. The transfer function—gain and phase as a function of frequency—provides valuable information about a control loop’s ...

Read an introduction to this series in Part 1, and Part 2, which covers noise. This is the third and final part in a series which discusses how to properly test a power supply to ensure it will work ...

Supplying power to a device, board or system is, by definition, an analog function that is characterized with parameters such as voltage, current and efficiency. However, the increased performance of ...

Digital power means more than printing a 1 and 0 next to the on/off switch. The fact that power supply companies disagree about what the term digital power means is a sure sign of the technology�s ...

Power plants–especially coal-fired boilers–pose a set of process control problems unparalleled in other industries. Rapid load ramps, continuous unit demand changes, variable fuel quality and process ...

Use of 4-to-20-mA current loops involves more than just a simple series connection between sensor, display, and power supply. The point where a sensor takes a measurement is, at times, many yards away ...