Bidirectional CLLLC resonant dual active bridge (DAB) reference design for HEV/EV onboard charger
TIDM-02002
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Key Document
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 accelerate
your time to market.
Features
- Vprim: 380–600 V DC; Vsec: 280–450 V DC; Power Max: 6.6 kW; 98% peak efficiency
- CLLLC resonant tank with 500-kHz nominal PWM switching (300 kHz–700 kHz range) enables higher power density
- Soft switching with zero voltage switching (ZVS) on the primary; zero current switching (ZCS) and ZVS on the secondary enable higher efficiency
- Active synchronous rectification scheme implementation using on chip resources on C2000 MCU and Rogowski coil sensor implementation using Rogowski coil sensor enables higher efficiency
- Software frequency response analyzer (SFRA) and compensation designer for ease of tuning of control loops
- Software 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
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Schematic/Block Diagram
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Design Guide
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TI Devices (9)
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| Sample & Buy |
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| AMC1302-Q1 |
Automotive ±50mV-Input High-Precision Reinforced Isolated Amplifier for Current Sensing |
Isolation |
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| AMC1311-Q1 |
Automotive 2-V input, reinforced isolated amplifier with high CMTI for voltage sensing |
Isolation |
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| ISO7820 |
Highest isolation rating, dual-channel, 2/0, reinforced digital isolator |
Isolation |
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| LMV116 |
Low voltage, 45MHz, rail-to-rail output operational amplifier |
Operational amplifiers (op amps) |
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| OPA320 |
Precision, Zero-Crossover, 20MHz, 0.9pA Ib, RRIO, CMOS Operational Amplifier
|
Operational amplifiers (op amps) |
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| REF2033 |
3.3-V Vref, low-drift, low-power, dual-output Vref & Vref/2 voltage reference |
Voltage references |
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| TLV713P-Q1 |
Automotive 150-mA, low-dropout voltage regulator with enable |
Power management |
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Not Available |
| TMS320F280049C |
C2000™ 32-bit MCU with 100 MHz, FPU, TMU, 256 KB Flash, CLA, InstaSPIN-FOC, CLB, PGAs, SDFM |
Microcontrollers (MCU) |
Sample & Buy |
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| UCC21530-Q1 |
Automotive, 4-A, 6-A, 5.7-kVrms isolated dual-channel gate driver with enable
|
Gate drivers |
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CAD/CAE symbols
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Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.
Step 1: Download and install the free download.
Step 2: Download the Symbol and Footprint from the CAD.bxl file table.
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Technical documentation
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Datasheet (2)
| | PDF | 4133 |
29 Apr 2020
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| | PDF | 1937 |
20 Nov 2019
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User guides (1)
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| | PDF | 13510 |
12 Mar 2020
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White papers (1)
| Title | Type | Size (KB) | Date |
| | PDF | 900 |
17 Jun 2020
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Design files (18)
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04 Dec 2019
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19 Nov 2018
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| | ZIP | 1804 |
19 Nov 2018
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19 Nov 2018
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| | PDF | 110 |
19 Nov 2018
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