方案

48-volt-LV DC-DC converter modules provide power flow between the 48-volt (medium voltage) and 12-volt (low voltage) power nets on mild hybrids (MHEV). The end-user does not notice these modules, but they provide essential functionality, as MHEVs do not have a traditional 12-volt power net alternator; instead, they have a 48-volt starter generator. The 48-volt starter generator provides the ability to charge both the 48-volt battery and the 12-volt battery by using the DC-DC module. The DC-DC converter module can be bidirectional, allowing power flow in either direction for specific use cases. Power levels from 1 kW to 3 kW are common, with systems requiring components rated at 40 volts on the 12-volt power net and 80 volts or more on the 48-volt power net of the converter. Our discrete MOSFETs and Automotive Power Modules (APM) allow designers to scale their solutions while providing maximum power density and high reliability for DC-DC converter modules used in MHEVs.

Block Diagram

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Evaluation/Development Kits

SECO-HVDCDC1362-15W-GEVB

15W High Voltage Auxiliary Power Supply for HEV & BEV Applications

SECO-HVDCDC1362-40W-GEVB

40W High Voltage Auxiliary Power Supply for HEV & BEV Applications

SECO-GDBB-GEVB

Gate Drivers Plug-and-Play Ecosystem

Reference Design

SECO-HVDCDC1362-15W-GEVB

15W High Voltage Auxiliary Power Supply for HEV & BEV Applications

SECO-HVDCDC1362-40W-GEVB

40W High Voltage Auxiliary Power Supply for HEV & BEV Applications

Technical Documents

Recommendations for Reliable Switching Performance Using 40V and 80V Automotive Power Modules Using Shielded-Gate MOSFETs

Ask the Expert: 48-Volt Automotive Electrical Systems Emerging

Zero-Drift Precision Op Amps: Advantages and Limitations of the Chopper-Stabilized Architecture

Low VCE(sat) BJT’s in Automotive Applications

Basics of In-Vehicle Networking (IVN)

EMC Tests and PCB Guidelines for Automotive Linear Regulators

EMI/ESD Protection Solutions for the CAN Bus