Current Bidirectional Two Quadrant

MOSFET Body Diode

Voltage bidirectional Two Quadrant

Four Quadrant Switches

Synchronous Rectifiers

48V VEHICLE ELECTRICAL SYSTEMExample Application

Automobile 12V Power

48V Electrical System

NXP Semi, “Semiconductors – enablers of future mobility concepts”, 2011Audi, “Electric biturbo and hybridization”, 2014AVL, “48V Mild Hybrid Systems”

Example 12/48 V Vehicle

12 VoltGenerator

12 VoltWiring

12 Volt Battery

48 Volt Battery

DC DC Converter48 VoltWiring

ElectricCompressor

System to Design

Param Value

Vg 12 V

Vout 48 V

Rout 48

Vout 0.1 V

Baseline Design

• Use TI WebBench (webench.ti.com) to get a baseline design

Device ParametersDiode MOSFET Inductor

Expected Behavior