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

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