Electronic Design

What’s the Difference Between Power Density and Power Spectral Density?

Defining laser-beam power density. Power spectral density (PSD) is the measure of a signal's power content versus frequency. PSD gives designers an idea of how the power of a signal is distributed ...
EDN

Test Ideas: Measure DSL power spectral density

A DSL (digital subscriber loop) transmitter's PSD (power-spectral density) is its signature in a network. Industry standards specify the allowed power in dBm/Hz in different parts of the ...
AZOM

Power Spectral Density: Understanding Surfaces at Different Scales

The concept of Power Spectral Density (PSD) is extremely beneficial when specifying optics of various types, with PSD proving to be a useful metric in laser fusion and other extreme application spaces ...
EDN

Power Spectral Density Testing for ITU-T G.9960 Power Line Devices

One of the fundamental tests that can be performed on OFDM-based Power Line Communication (PLC) technologies such as ITU-T G.9960 (G.hn) is Power Spectral Density (PSD) conformance. The measured PSD ...
Electrek

Scientists ‘achieve the highest power density in the world’ for EV wireless charging

Oak Ridge National Laboratory (ORNL) researchers wirelessly charged a light-duty passenger EV at 100 kW with 96% efficiency – a new milestone. Scientists at the US Department of Energy-funded ORNL ...
Electronic Design

What’s the Difference Between Power Density and Power Spectral Density? (Download)

The basic definition of power density is the rated (or nominal) output power of a device divided by the volume (volume = x · y · z) occupied by the device. Common units of measurement for power ...