TIDUES0E
June 2019 – April 2024
TMS320F28P550SJ
,
TMS320F28P559SJ-Q1
1
Description
Resources
Features
Applications
6
1
System Description
1.1
Key System Specifications
2
System Overview
2.1
Block Diagram
2.2
Highlighted Products
2.2.1
UCC21710
2.2.2
UCC14141-Q1
2.2.3
AMC1311
2.2.4
AMC1302
2.2.5
OPA320
2.2.6
AMC1306M05
2.2.7
AMC1336
2.2.8
TMCS1133
2.2.9
TMS320F280039C
2.2.10
TLVM13620
2.2.11
ISOW1044
2.2.12
TPS2640
2.3
System Design Theory
2.3.1
Dual Active Bridge Analogy With Power Systems
2.3.2
Dual-Active Bridge – Switching Sequence
2.3.3
Dual-Active Bridge – Zero Voltage Switching (ZVS)
2.3.4
Dual-Active Bridge - Design Considerations
2.3.4.1
Leakage Inductor
2.3.4.2
Soft Switching Range
2.3.4.3
Effect of Inductance on Current
2.3.4.4
Phase Shift
2.3.4.5
Capacitor Selection
2.3.4.5.1
DC-Blocking Capacitors
2.3.4.6
Switching Frequency
2.3.4.7
Transformer Selection
2.3.4.8
SiC MOSFET Selection
2.3.5
Loss Analysis
2.3.5.1
SiC MOSFET and Diode Losses
2.3.5.2
Transformer Losses
2.3.5.3
Inductor Losses
2.3.5.4
Gate Driver Losses
2.3.5.5
Efficiency
2.3.5.6
Thermal Considerations
3
Circuit Description
3.1
Power Stage
3.2
DC Voltage Sensing
3.2.1
Primary DC Voltage Sensing
3.2.2
Secondary DC Voltage Sensing
3.2.2.1
Secondary Side Battery Voltage Sensing
3.3
Current Sensing
3.4
Power Architecture
3.4.1
Auxiliary Power Supply
3.4.2
Gate Driver Bias Power Supply
3.4.3
Isolated Power Supply for Sense Circuits
3.5
Gate Driver Circuit
3.6
Additional Circuitry
3.7
Simulation
3.7.1
Setup
3.7.2
Running Simulations
4
Hardware, Software, Testing Requirements, and Test Results
4.1
Required Hardware and Software
4.1.1
Hardware
4.1.2
Software
4.1.2.1
Getting Started With Software
4.1.2.2
Pin Configuration
4.1.2.3
PWM Configuration
4.1.2.4
High-Resolution Phase Shift Configuration
4.1.2.5
ADC Configuration
4.1.2.6
ISR Structure
4.2
Test Setup
4.3
PowerSUITE GUI
4.4
LABs
4.4.1
Lab 1
4.4.2
Lab 2
4.4.3
Lab 3
4.4.4
Lab 4
4.4.5
Lab 5
4.4.6
Lab 6
4.4.7
Lab 7
4.5
Test Results
4.5.1
Closed-Loop Performance
5
Design Files
5.1
Schematics
5.2
Bill of Materials
5.3
Altium Project
5.4
Gerber Files
5.5
Assembly Drawings
6
Related Documentation
6.1
Trademarks
7
Terminology
8
About the Author
9
Revision History