AC-DC BI-DIRECTIONAL GAN RENESAS (3.6KW)
Description
This solution is a 3.6 KW bidirectional AC/DC power supply based on digital control. It utilizes a totem‑pole bridgeless PFC topology and a combination of SiC and Si MOSFETs, operating in continuous conduction mode (CCM) at high switching frequencies to achieve highly efficient bidirectional power conversion.
The system supports three operating modes: PFC, grid‑tied inverter, and grid‑off inverter. It is suitable for a wide range of applications requiring single‑ or bidirectional AC/DC power conversion, including energy storage systems, on‑board chargers (OBCs), grid‑connected renewable energy generation, and battery formation.
Block Diagram
Specifications
Key System Specifications
| PARAMETER | TEST CONDITION | MIN | TYP | MAX | UNIT |
|---|---|---|---|---|---|
| AC Input Voltage | 80 | 264 | VRMS | ||
| AC Line Frequency | 45 | 65 | Hz | ||
| AC Line Current | 16.2 | ARMS | |||
| Output Power | 220V AC line / 110V AC line | 3600 | W | ||
| DC Output Voltage | 400 | VDC | |||
| iTHD | 230VIN, 3600W load | 1.15 | % | ||
| PF | 230VIN, 3600W load | 0.9994 | |||
| Peak Efficiency | 230VIN, 1610W load, with aux power consumption | 98.7 | % | ||
| Switching Frequency | 66 | kHz | |||
| Input Inductor | 440 | µH | |||
| Output Capacitor | 1640 | µF |
Protection Specifications
| PARAMETER | DESCRIPTION | MIN | TYP | MAX | UNIT |
|---|---|---|---|---|---|
| HW Over Current | >38.7 | APEAK | |||
| SW Over Current | >30 | APEAK | |||
| HW DC Over Voltage | >445 | VDC | |||
| SW DC Over Voltage | >430 | VDC | |||
| DC Under Voltage | <350 | VDC | |||
| AC Voltage Error | VRMS | ||||
| AC Frequency Error | <65 | >270 | Hz | ||
| PLL Error | Difference between PLL and CMP calculation | <40 | >2 | >70 | % |
| Over Temperature | >60 | °c | |||
| Overload | >4000 | W |