SLUP412
February 2022
LMG3522R030-Q1
1
Introduction
2
Comparing Different Technologies
3
Advantages of Integrating the Driver With GaN FETs
4
The GaN-Based 6.6-kW OBC Reference Design
5
PFC Stage
6
DC/DC Stage
7
DC/DC Topology Selection
8
Frequency Selection
9
Core Loss
10
Loss of ZVS
11
Dead Time
12
ISR Bandwidth
13
Overall
14
Resonant Tank Design
15
Thermal Solution
16
Layout Best Practices
17
Control-Loop Considerations
18
Conclusions
19
References
20
Important Notice
19
References
Texas Instruments:
Designing a High-Power Bidirectional AC/DC Power Supply Using SiC FETs
.
Texas Instruments. Sept. 8, 2021.
GaN-Based, 6.6-kW, Bidirectional, Onboard Charger Reference Design
. TI reference design No. PMP22650. Accessed Sept. 19, 2021.
Texas Instruments. n.d.
Bidirectional CLLLC Resonant Dual Active Bridge (DAB) Reference Design for HEV/EV Onboard Charger
. TI reference design No. TIDM-02002. Accessed Sept. 19, 2021.
Texas Instruments. n.d.
98.6% Efficiency 6.6-kW Totem-Pole PFC Reference Design for HEV/EV Onboard Charger
. TI reference design No. TIDA-01604. Accessed Sept. 19, 2021.
Texas Instruments:
Optimizing GaN Performance with an Integrated Driver
.
Texas Instruments:
Direct-Drive Configuration for GaN Devices
.
Texas Instruments:
LMG352xR030-Q1 650-V 30-mΩ GaN FET with Integrated Driver, Protection, and Temperature Reporting
.
Texas Instruments:
Power Factor Correction (PFC) Circuit Basics
.
“
Electromagnetic compatibility of multimedia equipment – Emission requirements
.” Comité International Spécial des Perturbations Radioélectriques (CISPR) 32: 2015. CISPR: Geneva, Switzerland, October 2019.
Texas Instruments:
GaN FET-Based CCM Totem-Pole Bridgeless PFC
.
Texas Instruments:
Analytic Expressions for Currents in the CCM PFC Stage
.