A device called an onboard charger transforms ac power from any ac source into usable dc form. Its primary function is power conversion, and it is typically located inside an electric vehicle.
As a result, onboard chargers offer the benefit of charging the electric vehicle directly from a power outlet at our homes.
Additionally, it avoids the requirement for purchasing any additional machinery for power conversion.
An onboard charger's primary duty is to control the flow of current from the grid to the traction battery. OBCs (on-board chargers) allow electric vehicle chargers to charge from any source. As a result, electric vehicles are not always dependent on charging stations.
Controlling the amount of current and voltage used to charge the battery is another duty of the onboarding charger. Constant voltage and constant current charging are the two basic forms of charging.
Even while high efficiency and rapid charging are provided by constant current charging, the battery's lifespan may be impacted. This results from excessive billing.
There is a potential that a significant quantity of current could flow into the battery during constant voltage charging.
The aforementioned issue can be resolved by initially charging the battery using constant current. The battery is then charged utilizing constant voltage charging after reaching a specified amplitude in which the primary function of an onboard charger is to manage to charge.
In AC charging levels 1 and 2, the OBC converts grid-supplied AC power to DC power to use the Battery Management System to charge the battery (BMS).
The On-boarding charger is responsible for regulating voltage and current. The additional drawback of AC charging is that as the charging period lengthens, the power output decreases.
In AC chargers, the EV itself determines the charging rate or required input current. Since not all-electric cars (EVs) require the same amount of input charging current, the AC Charger must speak with the EV to establish a handshake and identify the required input current.
Pilot wire communication is the name given to this form of communication. The onboard charger needed input current is defined by the Pilot wire, which also specifies the type of charger that is connected to the EV.
The Battery Pack receives direct AC power from the grid during DC fast charging or Level 3 charging. We can observe from the above graphic that the DC charger itself has an integrated AC/DC converter.
As a result, at this level of charge, an Onboarding charger is no longer necessary. As a result, the charging time is decreased. Because a single stack would not be able to generate enough current, the EVSE is set up in stacks to offer a high current. Therefore, the Onboarding charger plays no part in DC Charging.
When it comes to standard Electric vehicle chargers and other types of automobile charging devices, you can rely on us as a leading brand with a strong commitment to quality.
