- 框图
- Design considerations
- Product listing
- 支持
框图
Highlighted components are Nexperia focus products.
PFC boost
Primary side conversion
Secondary side conversion
ESD protection
推荐产品 (1)
Control logic
推荐产品 (1)
AC EV wallbox
Related systems (1)
Battery Management System
Related systems (1)
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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