Isolating problems in the control circuitIn 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 ...

The volume slider on our virtual desktops is a skeuomorphic callback to the volume sliders on professional audio equipment on ...

Note: This article is based on the 1999 NEC. Class 1, 2, and 3 circuits are classified as remote-control, signaling, and power-limited circuits in the National Electrical Code (NEC). The NEC defines ...

The heart of this digital volume controller DVC circuit is IC2 4067, 16-channel analog multiplexer. Because the 1kΩ has been connected between every input and output, the multiplexer can act like a ...

Coherent optical phonons are coherently controlled by a pair of ultrashort optical pulses. |g> and |e> indicate the electronic ground and excited states and |0> and |1> indicate zero- and one ...

This circuit prevents over-discharge of a lead-acid battery by opening a relay contact when the voltage drops to a predetermined voltage (lower voltage threshold). When the battery is recharged to a ...

Add a motor and motor control circuit into a microprocessor based development kit. Create hardware and firmware to process motor feedback data to a microprocessor for further evaluation.

Short circuit current ratings should not be overlooked during panel design. Negative impacts can occur to production, equipment and, worst case, plant personnel.

Schematic of the reconfigurable transmissive metasurface with a combination of scissor and rotation actuators for independent control of beam scanning and polarization conversion.