Polarity of power inductorsin DC-DC converter Considering Polarity of Power Inductor to Reduce Radiated Emissionof DC-DC converter Application Note

PublishTime：2020-11-25

Power inductors are a part of the power stage of switch mode power supplies (SMPS) like none isolated DC-DC buck converter. Power traces from printed circuit board (PCB), power supply lines and power inductor causing electromagnetically interferences (EMI) noise like radiated emission. Leakage filed of power inductors influences overall radiated emission of a SMPS. Manufacturer of power inductors defining start of winding and specifying wiring of coils, also developing shielded coils to reduce radiated emission of SMPS. It is important to take care about coil orientation during the mounting process of a coil on a PCB. This application note is about radiated emission caused by a power inductor in a DC-DC converter dependent to the polarity of a coil.

Brand of Product：	ROHM
Part#：
Product Category：	DC-DC converter More
Application：	More
Data Type：	Application note & Design Guide More
Safety & Environment Standards：	More
Operating Temperature：	Please see the document for details
Qualification Grade：	More
Qualification Approval：	More
Package：
Language：	English Chinese Chinese and English Japanese
Date of Creation：	March.2020
Version Number：	Rev.001
Data Encoding：	62AN097E
Data Size：	1.7 MB

Data section preview(2pages)

- The full preview is over. If you want to read the whole 11 page document,please Sign in/Register -

Download

+1 Like
Add to Favorites

Recommend

New Products & Solutions

More>

Technical Resources

More>

All reproduced articles on this site are for the purpose of conveying more information and clearly indicate the source. If media or individuals who do not want to be reproduced can contact us, which will be deleted.

Integrated Circuits