In contrast to alternating current, or AC, which, depending on the supply's frequency, switches direction 50 or 60 times per second, the current in DC circuits flows only in one direction.

Circuit breakers are a safety feature that automatically interrupts the flow of electricity in the face of a system fault or ...

For a few years now, there’s been a debate over which power distribution architectures – DC or AC – are the most efficient for data centers. I know I don’t have to tell you, but for the ...

This Idea For Design shows how a gyrator circuit can be used to perform certain ac tests on units under test that require a dc-current feed.

This AC to DC converter circuit is capable of converting an alternative voltage within 70V – 260V range into a DC voltage within 180V to 350V DC range, so it can be used for 110V and 220V too. To ...

This is a take-off on Mr. Marian’s “Simple Micro Ampere Meter Circuit” that utilizes active circuitry and an analog meter to make sensitive DC current measurements. A reader subsequently asked if it ...

ORNL researchers are designing and increasing the capacity of a new type of semiconductor-based circuit breaker, which can ...

EC motors are DC brushless motors that are controlled by external electronic circuit board. This provides greater control and higher efficiency. The Basics of DC and AC Motors DC motors rely on ...

Three DC electrical tests are among those recommended by the InterNational Electrical Testing Association (NETA): DC overpotential test of the circuit breaker’s insulation systems. Insulation ...