The Doppler Effect: Existed Before Railroads?
Of course the effect did exist before the railroads. However, it wasn’t yet defined by the physics of the day, nor was it even noticed before the railroads...
Variable gain superbal circuit preserves CMRR
This adaptation of a superbal circuit allows for adjustable gain without CMRR degradation.
Mistakes were made, even in a simple 3-wire AC hookup
The many ways of making basic mistakes never fails to amaze, as this engineer saw in a basic 3-wire AC connection.
Oscilloscope cursors complement other measurement tools
It may seem somewhat archaic to retain an oscilloscope’s original measurement tools of screen graticules and cursors, but these tools are hardly outdated.
DOE lighting workshop explores lighting science and systems
This year’s DOE Lighting R&D Workshop covered topics like lighting for plants and human health, and integration of lighting and controls into new construction.
Influence of transmitted signal drive strength on electromagnetic interference
This article studies the influence of IC output drive strength on electromagnetic interference (EMI) by performing post-layout simulation of signal integrity and EMI using Mentor Hyperlynx.
Power Tips #96: Dynamically adjust negative output voltages
This power tip delves into the challenge of dynamically adjusting a negative output voltage.
Protecting antennas
The method used to protect antenna installations from humans is similar to protecting bird houses from squirrels.
JESD204B standard speeding data interfaces in space applications
The JESD204B chip-to-chip data interface will enable a breakthrough that wideband communications designers need in space applications.
Five things you should know about RMS
The problem is that for any unknown signal, the RMS 'value' can only be defined if you give a start and stop time for the relevant segment of signal.