Component selectionDesign tips
Characteristics
A DC input filter reduces interference between the device and its DC power supply. That means it prevents noise coupling from the supply line into the device (increasing immunity) and vice versa (decreasing emissions). To filter both common mode and differential mode noise, a common mode choke is supplemented with line filters and capacitors.
If an overvoltage protection is needed, it should be placed at the input of the filter.
Application Notes
- ANE015 Inrush current for connectors
- ANP062 LC Filter Design with MLCCs
- ANP071 Aluminum Electrolyticvs.Aluminum Polymer Capacitor and how its benefits are used properly
- ANP109 Impedance Spectra of Different Capacitor Technologies
- SN008 Expected Lifetime of Aluminum Electrolytic and Aluminum Polymer Capacitor
Videos
Inrush Current for Connectors
Videos
Filter Components – Mode of Operation and Selection Criteria