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EV CHARGER - 750W

Description

The Off-Board EV Charger with digital half bridge LLC topology uses 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 this platform can support up from 0.2KW~1.5KW.


Features

  • Charge Voltage and current Cut-off To Prevent The REESS From Being Overcharged
  • Whenever REESS is Connected For Charging Soft-start Function Is Activated
  • Deep Discharge Condition Of REESS is Detected By Pre-charge Function
  • Protects Against Input Supply Variation 120v ~ 280v with optional output de-rating feature
  • On-board/portable Charger Have CAN, UART To Communicate With BMS
  • Over temp protection and added de-rating to prevent over heating 
  • Output short circuit and reverse protection
  • Additional GPIO’s to interface LED or Display 


Block Diagram


Electrical Characteristics

 SPECIFICATIONS VALUE 
 Max. output power 560W-750W
 Rated Power 750W
 Nominal Input voltage range 230VAC
 Operating Range 120V-280VAC 
 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 015A
 (33-60V I/P, Continuous) 
 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
 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