4-kW single-phase totem pole PFC reference design with C2000 and GaN
Description
This reference design is a 4-kW CCM totem-pole PFC with F280049/F280025 control card and LMG342x EVM board. This design demos a robust PFC solution: which avoids isolated current sense by putting the controller's ground in the middle of a MOSFET leg. Benefitting from non-isolation: AC current sense can be implemented by high-speed amplifier OPA607: helping to realize reliable over-current protection. In this design: efficiency: thermal image: AC drop: lighting surge and EMI CE are fully validated. With completed test data: this reference design shows the maturity of totem-pole PFC with C2000 and GaN and is a good study platform for high efficiency products' PFC stage design.
Features
- Maximum power: 4000-W @ 200-V to 277-V nominalPeak efficiency: >= 99.1% ; power factor : ~0.999Current sensing by non-isolated high-speed amplifierSingle phase CCM totem pole with TI Gen2 daughter cardCompatible with TMS320F28004x/F28002x digital controllersFSI communication port included
Applications
- Air conditioner outdoor unit
- Rack & server PSU with 48-V output
- Merchant telecom rectifiers
- Portable power station
- Server PSU with 12-V output
Product Categories
- C2000 real-time microcontrollers