Uploaded October 2025 | Updated September 2026, 2 weeks ago
Speaker: Lorandt Fölkel | Duration ca. 50 min incl. Q&A
The last cars without electronic have been built in the sixties, since that time the electronic devices invade the cars. Started from a simple AM/FM Radio until today where autonomous driving and talking to the driver becomes standard for next generation cars.
However already the in the early sixties the manufacturers was facing EMI (electro-magnetic-interferences) generated from the ignition coils and interfere with radio reception.
The “magic” solution to cancel the noise was to use a rod core inductor to filter those sparks generated RF harmonics.
Later in the nineties, the cell phones boom was the one who made interferences with the audio systems generating unwanted sound.
Today the noise sources is almost impossible to avoid and should be considered already in the early design stage. Therefore, is need to know the harmonics generated and to be filtered close as possible to the noise source. As well, the signals must be immune to interferences to avoid fails at the final EMC testing of the car.
In my presentation, I will consider a 100W buck-boost converter as a noise source and give details about 3 different design concepts using almost the same BOM (bill of material) but different layout to achieve the EMC requirements as well conducted and radiated emissions.
Follow Würth Elektronik on:
Facebook group: we-online.com/facebook-we-group
Facebook karriere: we-online.com/facebook-we-karriere
Instagram group: we-online.com/instagram/we_group
Instagram karriere: we-online.com/instagram-we-karriere
LinkedIn: we-online.com/linkedin
Twitter: we-online.com/twitter
TikTok: we-online.com/tiktok
XING: we-online.com/xing
YouTube: we-online.com/youtube
More details about Würth Elektronik eiSos: we-online.com/en
Timestamps:
00:08 Introduction
01:36 Presentation
45:06 Questions and Answers
Speaker: Lorandt Fölkel | Duration ca. 50 min incl. Q&A
The last cars without electronic have been built in the sixties, since that time the electronic devices invade the cars. Started from a simple AM/FM Radio until today where autonomous driving and talking to the driver becomes standard for next generation cars.
However already the in the early sixties the manufacturers was facing EMI (electro-magnetic-interferences) generated from the ignition coils and interfere with radio reception.
The “magic” solution to cancel the noise was to use a rod core inductor to filter those sparks generated RF harmonics.
Later in the nineties, the cell phones boom was the one who made interferences with the audio systems generating unwanted sound.
Today the noise sources is almost impossible to avoid and should be considered already in the early design stage. Therefore, is need to know the harmonics generated and to be filtered close as possible to the noise source. As well, the signals must be immune to interferences to avoid fails at the final EMC testing of the car.
In my presentation, I will consider a 100W buck-boost converter as a noise source and give details about 3 different design concepts using almost the same BOM (bill of material) but different layout to achieve the EMC requirements as well conducted and radiated emissions.
Follow Würth Elektronik on:
Facebook group: we-online.com/facebook-we-group
Facebook karriere: we-online.com/facebook-we-karriere
Instagram group: we-online.com/instagram/we_group
Instagram karriere: we-online.com/instagram-we-karriere
LinkedIn: we-online.com/linkedin
Twitter: we-online.com/twitter
TikTok: we-online.com/tiktok
XING: we-online.com/xing
YouTube: we-online.com/youtube
More details about Würth Elektronik eiSos: we-online.com/en
Timestamps:
00:08 Introduction
01:36 Presentation
45:06 Questions and Answers
