[viewBag] title = "EV CHARGER / AC-DC 3.3KW" url = "/solutions/ev-charger-33kw" layout = "page-solutions" is_hidden = 0 navigation_hidden = 0 ==

# EV CHARGER / AC-DC 3.3KW

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# Description

The Off-Board EV Charger with Digital Half Bridge LLC topology uses mathematical modelling 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 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 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

Electrical Characteristics | VALUE
--- | ---
Max. Output Power | 3300W
Rated Power | 3300W
Nominal Input Voltage Range | 230VAC
Operating Range | 120V-280VAC
Input Current To The Charger | <25A
Input Frequency | 45 - 65Hz
Output Voltage Range | 35 - 60VDC
Rated Output DC Current | 51A
Max Output Current @ 3-60V | 4A ~ 51A
Minimum Current Output | 4A @ Pre charge
Nominal Default Voltage | 60VDC
Voltage Tolerance | ±0.1VDC
Current Tolerance | ±0.5A
Efficiency | >=94%
iTHD | <5%
Power Factor | >=0.99
No Load / Standby Power Consumption | <1.5W
Ramp Up/Down Time for 1V change | <100ms
Cold Start Time | <3s

## 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 2500 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
Automatic Shutdown | Yes

## Display

LED’s | Status Indications - 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 CAN Bus. LED Indications 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 | 120-280
Constant Voltage Minimum And Maximum Range | 35-60
Constant Current Minimum And Maximum Range | 4 to 51
Soft Start Time | 1 Sec
Current And Voltage Protection | Tested
CAN Communication | Tested
Overall Efficiency | 95%