EMC/EMI-Analog Electronics-EEWORLD

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Murata EMI filter market analysis: How to continuously meet new market demands: Author: Toru Inoue, Executive Vice President and Director of the Component Business Unit of Murata After joining Murata in 1980, Toru Inoue was appointed as the head of the Accounting and Control Department. In addition to being responsible for accounting ...; Keywords： EMI Filters
Publish Time：2021-05-07

Combined with Texas Instruments' new products, we review various technologies for reducing EMI in power chips: “Since EMI can seriously hinder design progress later, wasting time and money, it is important to consider EMI issues at the beginning of the design.” Texas Instruments (TI) white paper “Save Time by ...; Keywords： EMI WEBENCH Power Management Texas Instruments
Publish Time：2021-04-09

How EMI interferes with circuits through dielectrics: Electromagnetic interference (EMI) is a part of our lives. Over time, the generation of intentional and unintentional EMI radiation sources can wreak havoc on circuits. The signals from these radiation sources do not necessarily contaminate the circuit, but our goal is to keep low-noise systems away from these hazards. We can imagine that a......; Keywords： EMI
Publish Time：2012-06-01

Switch and Multiplexer Design Considerations for Harsh Operating Environments: Introduction The harsh working environment in automotive, military and avionics applications places extremely harsh technical requirements on integrated circuits. The circuits must be able to withstand high voltage and current, extreme temperature and humidity, vibration, radiation and various other stresses. In order to provide applications such as safety, entertainment, telematics, control and human-machine interface......; Publish Time：2011-06-28

Electromagnetic Interference (EMI) Filtering Reduces Errors in Precision Analog Applications: In technology fields such as medical devices, automotive instrumentation, and industrial control, when equipment design involves strain gauges, sensor interfaces, and current monitoring, precision analog front-end amplifiers are often required to extract and amplify very weak real signals and suppress unwanted signals such as common-mode voltage and noise. First, designers......; Keywords： EMI Filtering
Publish Time：2011-04-02

EMC solution in remote control design: Commonly used relays, thyristors, and high-frequency clocks in small appliance control boards may become the source of interference in small appliance control boards. The solutions to the above interference can be completed manually from the following aspects: (1) Add a freewheeling diode to the relay coil to eliminate the back electromotive force interference generated when the coil is disconnected. (2) ......; Keywords： EMC
Publish Time：2011-01-24

Discussion on EMI rules in high-speed PCB design: As the signal rise time decreases and the signal frequency increases, the EMI problem of electronic products has attracted more and more attention from electronic engineers. The success of high-speed PCB design has made its contribution to EMI more and more important. Almost 60% of EMI problems can be controlled and solved by high-speed PCB. Rule 1: High-speed signal routing shielding rules are as above......; Keywords： PCB EMI
Publish Time：2011-01-24

Design and simulation of switching power supply input EMI filter: Abstract: EMI filters are commonly used in switching power supplies to suppress common-mode interference and differential-mode interference. Three-terminal capacitors have good performance in suppressing high-frequency interference in switching power supplies. Based on the general performance EMI filter circuit structure of switching power supplies, this paper gives a filter structure that uses a three-terminal capacitor to suppress high-frequency noise. And using PSpi ......; Keywords： I
Publish Time：2011-01-24

Electromagnetic compatibility (EMC) design and testing techniques: Abstract: In view of the current severe electromagnetic environment, the source of electromagnetic interference is analyzed, and electromagnetic compatibility design is integrated through the decomposition of product development process. The key points of electromagnetic compatibility design are summarized from the aspects of schematic design, PCB design, component selection, system wiring, system grounding, etc. Finally, the electromagnetic compatibility test is introduced......; Publish Time：2011-01-24

About EMI's random thoughts: Get started in one month: EMI filter; The above is the basic block diagram of EMI filter. C1C2C3C4 is Y capacitor, L1 is common mode choke (common mode inductor): mainly for common mode noise. For Y capacitor, the selection surface Y is too narrow, basically there is no selection. Generally there are 2 or 4. There are not many choices for capacitance value, mainly considering the leakage current of the power supply, in......; Keywords： EMI
Publish Time：2011-01-24

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