Texas Instruments SN6501 | Demoboard TIDA-010054

Description

This reference design provides an overview on the implementation of a single-phase dual active bridge (DAB) DC/DC converter. DAB topology offers advantages like soft-switching commutations, a decreased number of devices and high efficiency. The design is beneficial where power density, cost, weight, galvanic isolation, high voltage conversion ratio and reliability are critical factors, making it ideal for EV charging stations and energy storage applications. Modularity and symmetrical structure in DAB allow for stacking converters to achieve high power throughput and facilitate a bidirectional mode of operation to support battery charging and discharging applications.

Features

• Single-phase-shift, DAB
• Dual-channel UCC21530 with reinforced isolationused for driving SiC MOSFETs in the half-bridge configuration
• TMS320F280049 controller for implementation ofdigital control
• Isolated voltage and current sensing
• Maximum power output of 10 kW
• Full load efficiency of 97.6% and a peak efficiency of 98.2% at 6 KW
• High-power density of 1.92 KW/L
• Primary voltage of 700-800-V DC, secondaryvoltage of 380-500-V DC
• Two-level turnoff for short-circuit protection with adjustable current limit and delay (blanking) time
• PWM switching frequency of 100 kHz and reduced transformer size enabled by planar magnetics
• Soft switching without auxiliary components

Typical applications

• Energy storage power conversion system (PCS)
• DC charging (pile) station / EV charging station power module / On-board (OBC) & wireless charger

More information

• Datasheet
• IC product information