This article discusses CMOS inverter switching and shows the impact of a decoupling capacitor on the power rail signal integrity and radiated emissions.
When measuring signals in electronic circuits some times what you see on the screen is not what you have in the circuit. Parasitic couplings, mismatching, noise pickup, and many other anomalous effects can give you the wrong picture of your problem.
For common-impedance coupling to occur, two circuits must share a current path (with a non-negligible impedance)
Whenever an electronic circuit is first energized, transients occur in current and voltage waveforms. These start-up transients can affect the electrical and thermal behavior of components and circuits with serious reliability, EMI, and random effects. Try to characterize how your circuits start and stop.
Richard Nute examines how transformers behave when subjected to transient overvoltage, both magnetically and capacitively.
Sometimes a ferrite is used to remove ringing in some applications as in power electronics or digital circuits.
The leakage current measuring circuits in IEC 950 and those in North America are exactly the same.
A Japanese research facility was awarded a U.S. patent for a new method for detecting counterfeit goods by testing and analyzing circuits. The patent points out that before the 1990s, circuits were only built b... Read More...
A team of scientists at the Ecole Polytechnique Federale de Lausanne have developed photonic transistor used in optical circuits that require an extremely low amount of energy to operate. The small device acts ... Read More...