The Off-Board EV Charger with Digital Half Bridge LLC topology uses mathematical modeling to achieve high energy density, increasing safety, reducing weight, and improving efficiency, with AIS156 standards. It supports different battery types and charging methods including Pre-charge, CC, CV, CP, floating/trickle, or Power exchange on CAN Command this platform can support up from 0.2KW~1.5KW.


  • Charge Voltage 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
  • Earth Leakage Detection: Input RCD 30mA at Plug Input To Meet AIS156
  • On-board/portable Charger Have CAN, UART To Communicate With BMS

Block Diagram

Electrical Characteristics

 Specifications Value
 Max. Output Power 1200W~1500W
 Rated Power 1500W
 Nominal Input Voltage Range 230VAC
 Operating Range 120V-280VAC
 Input Current To The Charger <10A
 Input Frequency 45 - 65Hz
 Output Voltage Range 33 - 60VDC
 Rated Output DC Current 25A
 Max Output Current (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


 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

 3000 VAC, 50 Hz, 1 min, <10 mA
 1500 VAC, 50 Hz, 1 min, <10 mA
 500 VDC, 50 M ohm (min)

Communication Features

 Communication Interface CAN2.0B 500Kbps / Isolated CAN UART Automatic Shutdown Yes
 Standby Power Off  Yes


 2 LED’s

 Multi-colored LED Indicator for 

 - Battery Status

 - Error and Fault Indication

 - SOC Indication in terms of % - 25%,50%,75% & 100%

 Can be customized as per
 the customer spec

 Faults and Alerts

 Alarms over CANBus. 

 LED Lights 

 Warning and Fault Handling Logic Can Be Implemented

 Can be customized as per the
 customer spec

Test Procedure

 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 28
 Soft Start Time 1 Sec
 Current And Voltage Protection  Tested
 CAN Communication Tested
 Overall Efficiency 95%


 EV 1500W Variants 48V,  28A 60V, 25A 72V, 20A