EV CHARGER / AC-DC GAN CHARGER 750W
Description
The Off-Board EV Charger with Digital Half Bridge LLC topology uses a mathematical model to achieve high energy density, increasing safety, reducing weight, and improving efficiency, with AIS156 standards. It supports different battery types, and charging methods include Pre-charge, CC, CV, CP, floating/trickle, or Power exchange on CAN Command.
Features
- Charge voltage cut-off to prevent the REESS from being overcharged
- Whenever REESS is connected for charging, the soft-start function is activated
- Deep discharge condition of REESS is detected by pre-charge function
- Protects against wide input supply 120V~270V
- Earth leakage detection: Input RCD 30mA at plug input to meet AIS156
- On-board/portable charger has CAN and UART to communicate with BMS
Block Diagram
Electrical Characteristics
| SPECIFICATIONS | VALUE |
|---|---|
| Max. output power | 560W-750W |
| Rated Power | 750W |
| Nominal Input voltage range | 230VAC |
| Operating Range | 120V-270VAC |
| Input Current to the charger | <5A |
| Input Frequency | 45 - 65Hz |
| Output voltage range | 33 - 60VDC |
| Rated Output DC Current | 12A / 15A Max |
| Max output Current (33-60V I/P, Continuous) | 015A |
| Minimum Current Output | 0.5A |
| Nominal Default Voltage | 51.8VDC |
| Voltage Tolerance | ±0.1VDC |
| Current Tolerance | ±0.5A |
| Efficiency @ >30% load | >=90% |
| Peak Efficiency | >=96% |
| THD | <5% |
| Power Factor (active PFC) , LLC | >=0.99 |
| No Load / Standby Power Consumption | <1.5W |
| Inrush Current (AC side) | <8A |
| Leakage Current | <30mA |
| Ramp Up/Down Time for 1V change | <100ms |
| Cold Start Time | <5s |
Safety
| PROTECTION | |
|---|---|
| Under Voltage & Overvoltage Without Jitter | Over Current & Short Circuit Protection |
| Surge Protection Type 3 Inbuilt TVS 6kV B72220S0301K101 | O/P Reverse Polarity Protection |
| O/P Overvoltage Protection: Cut off after 59 ± 1 V | Automatically Shut Down After Full Charge |
| Charger Thermal Cut Back: Based On Customer Housing Design | Residual Current Protection through RCD: Optional in Adaptor Mounting |
| GALVANIC ISOLATION | ||
|---|---|---|
| INPUT - OUTPUT 3000 VAC, 50 Hz, 1 min, <10 mA | INPUT - CASE 1500 VAC, 50 Hz, 1 min, <10 mA | OUTPUT - CASE 500 VDC , 50 M ohm (min) |
Communication Features
| Communication Interface | CAN2.0B 500Kbps / Isolated CAN UART | Automatic Shutdown | Yes |
| Standby power off | Yes |
Display
| 2 LED’s | Multi-colored LED Indicator for - Battery status - Error and fault indication - SOC Indication in terms of % - 25%,50%,75% & 100% | REMARK |
| Can be customized as per the customer spec |
| PROTECTION Faults and Alerts | Alarms over CANBus. LED Lights Warning and fault-handling logic can be implemented | REMARK |
| Can be customized as per the customer spec |
Test Procedure
| PROCEDURE | REMARKS |
|---|---|
| LPS | Tested |
| Power factor of PFC at universal operating range | 110-240 |
| Constant Voltage Minimum and Maximum Range | 35-60 |
| Constant Current Minimum and Maximum Range | 1 to 14 |
| Soft start time | 1 Sec |
| Current and voltage protection | Tested |
| CAN communication | Tested |
| Overall efficiency | 95% |
| EV 750W Variants | 48V, 16A | 60V, 12.5A | 72V, 10.5A |