Brief Introduction
The EV Battery Pack 6.6KW On Board Charger have been designed and optimized to maintain strong performance under harsh tropical conditions. The OBC integrated AC to DC converter inside the cabinet, it make the vehicle able to charge directly with AC grid input.
The OBC output side connects to EV battery pack, and work follows the CAN messages (current, voltage and charging requirements) form EV BMS.
This EV Battery Pack 6.6KW On Board Charger is easy integration into an existing infrastructure; And parallel charging mode enables flexible increase of charging power.
(Tips: The OBC also can work without CAN)
Applications of the On Board Charger (OBC)
On-board charger (OBC) is a device that converts AC power source into DC power.. Therefore, the car charger provides the advantage of using the power socket in home to charge electric vehicles. Present, almost every EV has an onboard charger. This OBC can use for following objects:
If the vehicle is charged with DC, the on board charger will be bypassed. The DC current from the DC charging station will be sent directly to the electric vehicle battery. Therefore, the on-board charger is not used for DC charging.
What Types of On-Board Chargers Are Available?
On-board chargers are categorized by the number of phases they use (single, dual, or triple) and their power output, typically ranging from 3.7 kW to 22 kW. These factors influence both the charger's cost and the overall price of the electric vehicle.
The AVID charger, for instance, offers a 7.3 kW output on a single phase and a 22 kW output on three phases. It automatically detects which phase configuration it is using. When paired with a home AC station that also supports 22 kW, the charging duration will mainly depend on the battery's capacity.
This charger supports input voltages of 110 - 260 V AC for single-phase connections and 360 - 440 V AC for three-phase setups. The output voltage supplied to the battery ranges from 450 - 850 V.
Future Prospects
The speed of electric vehicle charging hinges on the weakest link in the system, driving a trend towards more powerful on-board chargers. Research is focused on making chargers more compact and lightweight while improving energy density, charging efficiency, and heat management.
Advancements in the Power Factor Correction (PFC) phase have achieved up to 98% efficiency. Thus, overall efficiency now largely depends on the design and performance of the DC-DC converter in the next phase.
Electric vehicles also include powertrains that convert AC to DC. We'll explore their functions and future developments in a subsequent article.
Hot Tags: ev battery pack 6.6kw on board charger, ev battery pack 6.6kw on board charger suppliers, manufacturers, factory
Technical data of the 6.6kW On Board Charger (OBC) (AC to DC)
|
AC Input Characters |
||
|
Input voltage range |
V AC |
90-256 |
|
Input frequency range |
Hz |
50 |
|
Input current |
A |
≤30 |
|
AC current THD |
% |
< 5 |
|
Power factor |
/ |
> 0.99 |
|
Efficiency |
% |
> 94 @ from 50% to Max load |
|
DC Output Characters |
||
|
Output voltage range |
V DC |
0V-440 |
|
Rated output voltage |
V DC |
360 |
|
Charging voltage accuracy |
% |
≤1 |
|
Charging current accuracy |
% |
≤5 |
|
Charging current ripple amplitude |
% |
≤1 |
|
Max. output power |
kW |
6.6 |
|
Output charging current |
A |
0-18A |
|
Output response time |
S |
≤5 |
|
Other Characters |
||
|
Operation ambient temperature |
℃ |
-40～65 |
|
Storage ambient temperature |
℃ |
-40～85 |
|
Environment Humidity |
% |
5-95 |
|
IP protection |
% |
IP67 |
|
Cooling method |
/ |
Fan cooling |
|
Communication |
/ |
CAN bus protocol (125 / 250 / 500 kbps) |
