Bidirectional CLLLC resonant dual active bridge (DAB) reference design for HEV/EV onboard charger
Description
CLLLC resonant DAB with bidirectional power flow capability and soft switching characteristics is an ideal candidate for Hybrid Electric Vehicle/Electric Vehicle (HEV/EV) on-board chargers and energy storage applications. This design illustrates control of this power topology using a C2000™ MCU in closed voltage and closed current-loop mode. The hardware and software available with this design help accelerateyour time to market.
Features
- Vprim: 380–600 V DC; Vsec: 280–450 V DC; Power Max: 6.6 kW; 98% peak efficiencyCLLLC resonant tank with 500-kHz nominal PWM switching (300 kHz–700 kHz range) enables higher power densitySoft switching with zero voltage switching (ZVS) on the primary; zero current switching (ZCS) and ZVS on the secondary enable higher efficiencyActive synchronous rectification scheme implementation using on chip resources on C2000 MCU and Rogowski coil sensor implementation using Rogowski coil sensor enables higher efficiencySoftware frequency response analyzer (SFRA) and compensation designer for ease of tuning of control loopsSoftware support for TMS320F28004x device with the control law accelerator (CLA): which enables integrated OBC design with AC-DC and DC-DC controlled using a single C2000 MCU
Applications
- String inverter
- DC fast charging station
- Battery cell formation & test equipment
- DC fast charging power module
- DC wallbox charger
- 1-phase AC-digital control
- 3-phase AC-digital control
- DC-fast charging
- OBC-wireless charging
- Portable power station
Product Categories
- C2000 real-time microcontrollers