The power supply in your computer manages all of the power required to run each component of your computer. When this critical component begins to fail, your computer may power off unexpectedly, ...

The basic test instrument suite — a bench power supply, a good multimeter and perhaps an oscilloscope — is extremely flexible, but not exactly “plug and play” when it comes to diagnosing problems with ...

What if a variable-frequency drive (VFD) on a critical system has a fault indication, the “error” LED on a DC power supply has turned on, or a conveyor belt has started behaving erratically — most ...

We earn commissions from purchases you make using links in our articles. Learn more. Anyone who works on their car should have a multimeter, but they come in handy around the house too. Whether you ...

In Part 1 of this two-part series, we presented a 3-phase, 480VAC motor circuit with its associated controls (Figure). We stepped through a logical, systematic approach to troubleshoot the main power ...