TIDUF64A
December 2023 – August 2024
1
Description
Resources
Features
Applications
6
1
System Description
1.1
Key System Specifications
1.2
PV Input with Boost Converter
1.3
Bidirectional DC/DC Converter
1.4
DC/AC Converter
2
System Design Theory
2.1
Boost Converter
2.1.1
Inductor Design
2.1.2
Rectifier Diode Selection
2.1.3
MPPT Operation
2.2
Bidirectional DC/DC Converter
2.2.1
Inductor Design
2.2.2
Low-Voltage Side Capacitor
2.2.3
High-Voltage Side Capacitor
2.3
DC/AC Converter
2.3.1
Boost Inductor Design
2.3.2
DC-Link Capacitor
3
System Overview
3.1
Block Diagram
3.2
Design Considerations
3.2.1
Boost Converter
3.2.1.1
High-Frequency FETs
3.2.1.2
Input Voltage and Current Sense
3.2.2
Bidirectional DC/DC Converter
3.2.2.1
High-Frequency FETs
3.2.2.2
Current and Voltage Measurement
3.2.2.3
Input Relay
3.2.3
DC/AC Converter
3.2.3.1
High-Frequency FETs
3.2.3.2
Current Measurements
3.2.3.3
Voltage Measurements
3.2.3.4
Auxiliary Power Supply
3.2.3.5
Passive Components Selection
3.3
Highlighted Products
3.3.1
TMDSCNCD280039C - TMS320F280039C Evaluation Module C2000™ MCU controlCARD™
3.3.2
LMG3522R030 650-V 30-mΩ GaN FET With Integrated Driver, Protection and Temperature Reporting
3.3.3
TMCS1123 - Precision Hall-Effect Current Sensor
3.3.4
AMC1302 - Precision, ±50-mV Input, Reinforced Isolated Amplifier
3.3.5
ISO7741 Robust EMC, Quad-channel, 3 Forward, 1 Reverse, Reinforced Digital Isolator
3.3.6
ISO7762 Robust EMC, Six-Channel, 4 Forward, 2 Reverse, Reinforced Digital Isolator
3.3.7
UCC14131-Q1 Automotive, 1.5-W, 12-V to 15-V VIN, 12-V to 15-V VOUT, High-Density > 5-kVRMS Isolated DC/DC Module
3.3.8
ISOW1044 Low-Emissions, 5-kVRMS Isolated CAN FD Transceiver With Integrated DC/DC Power
3.3.9
ISOW1412 Low-Emissions, 500kbps, Reinforced Isolated RS-485, RS-422 Transceiver With Integrated Power
3.3.10
OPA4388 Quad, 10-MHz, CMOS, Zero-Drift, Zero-Crossover, True RRIO Precision Operational Amplifier
3.3.11
OPA2388 Dual, 10-MHz, CMOS, Zero-Drift, Zero-Crossover, True RRIO Precision Operational Amplifier
3.3.12
INA181 26-V Bidirectional 350-kHz Current-Sense Amplifier
4
Hardware, Software, Testing Requirements, and Test Results
4.1
Hardware Requirements
4.2
Note
4.3
Test Setup
4.3.1
Boost Stage
4.3.2
Bidirectional DC/DC Stage - Buck-Mode
4.3.3
DC/AC Stage
4.4
Test Results
4.4.1
Boost Converter
4.4.2
Bidirectional DC/DC Converter
4.4.2.1
Buck Mode
4.4.2.2
Boost Mode
4.4.3
DC/AC Converter
5
Design and Documentation Support
5.1
Design Files
5.1.1
Schematics
5.1.2
BOM
5.2
Tools and Software
5.3
Documentation Support
5.4
Support Resources
5.5
Trademarks
6
About the Authors
7
Revision History
3.1
Block Diagram
Figure 3-1
TIDA-010938 Block Diagram