Sassan Tabatabaei, SiTime Corporation Electronic devices have to operate in close proximity, whether it is in the home, office, industrial establishment, or outdoors. Each of the devices may radiate electromagnetic energy, which can interfere with the operation of the rest of the devices. To avoid such harmful interference, governments and industry bodies limit the amount of … [Read more...]
EMC Performance of a Product Over Its Lifetime
Gert Gremmen, Tim Haynes, Ralph McDiarmid, Ed Price, John Woodgate EMC performance of a product is likely to vary with age as the physical characteristics change, e.g. caps dry out and metal junctions oxidize, etc. Obviously, the product is designed with the intention of consistent compliance over the life of the product, but are there any requirements or guidance relating to … [Read more...]
Effective EMC Troubleshooting with Handheld Probes
EMC testing is an unavoidable part of the development cycle for electronic products. As clock frequencies continue to increase, radiated emissions get harder to control. In an ideal world, the R&D engineer would test the emissions from his product early in the design stage and retest frequently as design changes were made, just ass he tests whether his product meets its … [Read more...]
1.04m Rod, Antenna Factor and Received Level in MIL-STD 462/461E Compared to MIL-STD 461F Test Set Up
David A. Weston, EMC Consulting, Inc., Merrickville, Ontario, Canada INTRODUCTION This paper shows that the antenna factor of the receiving rod antenna and the E field incident on it, from a standard source of radiation, both change when the counterpoise of the rod is either isolated from the ground plane on the table (new MIL-STD-461F set up), or connected, as per … [Read more...]
Premo New 1000 Amps Reactor
Power Electronics’ new TEU series is a 630KW three phase reactor built in an open frame, suitable for filtering, or adjusting line impedance in AC/DC drives or inverters for Renewable energies. Its simple and robust connection to aluminum bus bars makes installation easy and quick. Inductance is as high as 150uH per phase storing up to 75J in of magnetic energy per shift. A … [Read more...]
EMI/RFI Filters Suit Space-Constrained Systems
Tyco Electronics has introduced a new series of highly versatile and compact EMI/RFI filter products under its Corcom brand. The new series of Corcom SB power line filters is an enhanced version of the popular Corcom B series filter and offers significantly improved common and differential mode performance. A compact height of only 1.53 inches makes SB series filters one of the … [Read more...]
New Furniture Line Features EMI/RFI Filters
Sanus, a brand of audio/video mounts, furnishings and consumer electronics accessories, now offers a rack mounted flat-panel HD power conditioner, which offers protection against power spikes and surges that could cause damage to expensive AV equipment and features dual-stage EMI/RFI filters. The ELM205’s dual-stage EMI/RFI filters eliminate noise from 20-50 dB (100 kHz-1 MHz) … [Read more...]
DIN Rail Mounting Options for 1-Phase and 3- Phase EMC Filters
Schurter expands its filter product portfolio to include the DIN Rail mounting option for 1- and 3-Phase filters. The new compact EMC filters are especially suited for use on TS35 (EN60715) DIN rails in solar inverters, industrial equipment and control systems. The DIN rail fixture and fitting concept facilitates simple and time saving snap-in of the Schurter FMAB Rail, FMBB … [Read more...]
Thin EMI Filters with High ESD Performance
Texas Instruments Incorporated recently introduced six- and four-channel electromagnetic interference filters for LCD display applications. The filters also meet electrostatic discharge ratings that exceed the IEC 61000-4-2 specification by at least three times for contact discharge. Both are 67 percent better than the specification for air-gap discharge. This allows the signal … [Read more...]
New DC Filter for Photovoltaic Systems
Schurter has added a new standard DC filter series FMER SOL designed for use on the DC side of the inverter in photovoltaic systems and other DC systems. MPP (maximum power point) trackers generate disturbances into both the grid’s AC power line, as well as the DC side of the solar module. An AC filter is typically used on the grid’s AC power line, but the noise generated on … [Read more...]
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