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Würth Elektronik Watts Up Podcast

Aug 15, 2024

Electromagnetic interference (EMI) is unwanted noise in electrical circuits caused by electromagnetic fields from natural and human-made sources (power lines, radio transmitters, appliances). This podcast explores EMI filters, which are essential for reducing noise in electronic devices, ensuring they...


Aug 1, 2024

This podcast focuses on the critical topic of Electrostatic Discharge, or ESD, and its impact on electronic devices. Our aim is to discuss its detrimental effects on electronics and find effective strategies for its prevention through selecting appropriate overvoltage and creating a well-designed PCB layout. You can...


Nov 4, 2021

EMI is a common problem engineers face when designing a new application. How can a developer solve EMC problems on the circuit board or prevent them from occurring? What has to be considered and where does it make sense to use a filter? Which system impedances are there and what are the deciding factors for which...


Jun 10, 2021

Today's discussion centers around the Universal Serial Bus, commonly known as USB.  We'll be discussing the interface from an EMC point of view, and talk about technologies, hardware and components, PCB layout, and more.

FIGURE 1:

REFERENCED IMAGES IN THIS PODCAST:

Figure 1- Pin Assignment of the USB Interface

FIGURE 2:

Figure 2- USB Cable Construction

FIGURE 3:

Figure 3- USB Interface Bidirectional and Symmetrical

FIGURE 4:

Figure 4- Symmetrical transmission

FIGURE 5:

Figure 5- High Quality Circuit Design

FIGURE 7:

Figure 7-Differential Data Mode 2