Title: EMI Filter Basics | Astrodyne TDI
Headings: EMI Filter Basics
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EMI Filter Basics
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What is EMI?
What is the Difference Between EMI and RFI?
What is EMC?
Where Does EMI Come from?
1. Natural Causes of EMI
2. Human-Made Residential Cause of EMI
3. Human-Made Industrial Causes of EMI
Other Types of EMI Categorization
Why is EMI a Problem?
Effects of EMI in the Residential Sector
Effects of EMI in the Industrial Sector
What is an EMI Filter?
EMI Filter Applications
Astrodyne TDI is an EMI Industry Leader

Content: Lightning strikes
Solar flares
Cosmic noise
Static electricity
Atmospheric electrical storms
Solar magnetic storms
Dust storms
Snowstorms
The sun
Natural EMI can occur suddenly and have a severe impact on inadequately protected electrical devices. More substantial natural electromagnetic interference, such as solar flares or electrical storms, can impact military equipment or transportation technologies. The sun can cause disruptions to satellite transmissions if it appears directly behind a satellite and the electromagnetic noise masks the satellite's transmission. On a smaller scale, naturally occurring EMI like snowstorms may cause radio static or disrupt cell phone signals. 2. Human-Made Residential Cause of EMI
Residential causes of EMI often come from devices that operate using a wireless signal, but also emanate from a variety of other electronic appliances. While EMI from residential devices often does not inflict severe or permanent damage, it can still cause annoying disruptions to other devices in the home and lead to poor performance of electronics. Here are a few common causes of EMI in a residential setting: Cell phones
Laptops
Wi-Fi devices
Bluetooth devices
Baby monitors
Microwaves
Toaster ovens
Electric blankets
Heating pads
Heaters
Lamps
As more and more electronic devices get developed and used, the impact of residential sources of EMI continues to grow. With more people using electronic devices like cell phones and computers, there is a higher density of electromagnetic currents in the environment.