Products
Design considerations
- Designers have multiple options for OBC conversion topologies, including single-phase / multi-phase and uni- / bidirectional
- Current batteries are typically 400 V, using 650 V FETs in a bidirectional OBC topology where GaN brings the highest efficiencies (for unidirectional topologies SiC diodes can be used on the secondary side
- For 800 V batteries, need to go multi-level GaN or high-voltage SiC
- However OBC topologies are heavily fragmented which may lead to combined 650 / 1200 V device solutions
- PFC output defines blocking voltage of power semiconductors at DC-DC-Input and battery voltage defines blocking voltage at DC-DC-Output (650 or 1200 V)
- Trend towards higher OBC charging power and 800 V batteries for higher class BEV solutions, will require more 1200 V solutions
MOSFET and GaN FET Handbook
Drawing on over 20 years’ of experience, the MOSFET and GaN FET Application Handbook: A Power Design Engineer’s Guide brings together a comprehensive set of learning and reference materials relating to the use of MOSFETs and GaN FETs in real world systems.
![](/dam/jcr:1926e235-8a49-439e-919c-9a2816c62fc7/technical-support-1.jpg)
Let us help you with product and design questions
Contact our technical support desk for your technical questions.