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EV CHARGER / AC-DC 3.3KW

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%