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Interference Technology

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HORIBA MIRA and Coventry University Launch Autonomous Vehicle Research Centre

 

HORIBA MIRA, a world-leader in vehicle engineering, research and product testing has joined forces with Coventry University to launch a brand new automotive research centre dedicated to developing intelligent, connected vehicle technology. The Centre for Connected & Autonomous Automotive Research will pioneer and test new developments to support the rapid growth within … [Read more...]

Measuring Common Mode Versus Differential Mode Conducted Emissions

 

When faced with excessive conducted emissions from switching power supplies, one of the first things to investigate and to determine the adequacy of is the power line filter. Line-powered switching supplies generally have both common mode and differential mode sections of the filter as shown in the generalized schematic in Figure 1. When using a line impedance … [Read more...]

DC-DC Converter Uses Spread Spectrum Clock to Reduce EMI Noise

 

Ricoh Europe has launched a high-efficiency, 2A synchronous step-down DC/DC converter with a wide input voltage range up to 30V that has two options to minimise electromagnetic interference (EMI). The R1275 allows connecting to a variety of input sources, such as battery-powered portable devices, industrial supplies and automotive batteries. It uses a Spread Spectrum Clock … [Read more...]

New Low-Cost Regulated SIP8 DC/DC Converters Launched

 

RECOM’s new regulated DC/DC converters RSE (2 Watt) and RSOE (1 Watt) series were developed for a variety of industrial, transport, test & measurement which require on-board 5V power supplies; the cost-effective converters operate at extreme temperatures from -40°C up to +80°C at full load. The fully upgraded DC/DC converters are offered with nominal 2:1 input voltages … [Read more...]

New High Current Shielded Power Inductors Introduced

 

Coilcraft's SER1400 Series High Current Shielded Power Inductors are designed for high current power supply applications, and AEC-Q200 Grade 1 (−40°C to +125°C) — SER1412 only. They come with flat wire windings for exceptionally low DCR, and have specially formed terminations to provide a small footprint. Versions for high Isat applications and high Irms applications are … [Read more...]

First Calibration System for SAR & OTA Testing

 

MVG's Golden Wireless Device is the first calibration system for SAR and OTA testing, a real innovation. SAR and OTA testing are currently done with a regular mobile phone. The Golden Wireless Device (GWD) is conceived for SAR and OTA users who are looking to validate their system. It is emulated with a COM Tester (base station simulator) on an available band, for real … [Read more...]

ESD Effects of Digital ICs

 

One issue I see fairly often with unshielded consumer or commercial products is CPU resets during periods of immunity testing, such as during electrostatic discharge  (ESD) testing. Untreated, this can lead to field failures and associated customer satisfaction issues. The remedy is usually quite simple and IC manufacturers even mention the solution, but it’s usually buried … [Read more...]

Thin Expanded Copper and Aluminum Materials Protect Against Lightning

 

Precision MicroGrid® materials from Dexmet are the industry standard for expanded metal foils used in lightning strike protection on composite and carbon fiber structures with OEM aircraft manufacturers. Aircraft designers want to ensure that they incorporate our thin expanded copper or aluminum into their designs, this allows the composite material to be lightweight for better … [Read more...]

Miniaturized LC Filters for EMI Suppression Available

 

TDK Corporation presents the MEM1005PP251T – a new LC filter for EMI suppression. With dimensions of just 1.0 mm x 0.5 mm x 0.35 mm the filters are ideally suited for use in smartphones and base stations. Volume production began in March 2017. The usual method for suppressing interference in the communication frequency bands of smart phones and other devices is to use … [Read more...]

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