circuits

Transients in Secondary Circuits

Richard Nute examines how transformers behave when subjected to transient overvoltage, both magnetically and capacitively.

Ferrites to Kill Ringing or Not?

Sometimes a ferrite is used to remove ringing in some applications as in power electronics or digital circuits.

Leakage Current Measuring Circuits

The leakage current measuring circuits in IEC 950 and those in North America are exactly the same.

On Limited-Current Circuits

A Product Safety Newsletter reader asked about where limited-current circuits are required by IEC...

Patent for Testing Circuits to Detect Counterfeit Goods

A Japanese research facility was awarded a U.S. patent for a new method for...

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Pulse Immunity of Microprocessors/Microcontrollers

Comparatively simple measures can be taken to enhance EMC if a circuit is to...

Low-Energy Photonic Transistor Building-Block Developed

A team of scientists at the Ecole Polytechnique Federale de Lausanne have developed photonic...

1409 F3 cover New developments in electronics manufacturing are increasingly dominated by the requirements of EMC today. Considerable follow-up costs in product development are caused due to the failure of electronic modules in EMC compliance tests. The integrated circuits that are used in an electronic system are critical for its EMC performance as a whole. ICs are often responsible for interference emissions or immunity weak points and it is difficult to gain control of them in such cases.