Taking charge of electric vehicles

17th October 2018
Posted By : Lanna Cooper
Taking charge of electric vehicles

A plug-in hybrid electric vehicle (PHEV) requires a power electronic system between the power grid and the high voltage battery pack located inside the vehicle. This electronic system is split into two parts: a charging station, which is also called Electric Vehicle Service Equipment (EVSE) or an off-board charger, and an onboard charger inside the vehicle.

A charging station is part of the grid infrastructure installed along a street, parking lot or in a home garage; its primary purpose is to supply the power to the PHEV for charging the battery.

An onboard charger is responsible for the final stage of charging the battery pack. It takes the AC power source from the EVSE and transforms the power into the required battery-charging profile.

Despite having separate functions for charging a vehicle, similarities in the naming conventions ('on-' and 'off-' board chargers) have caused general confusion about these two types of systems.

While the onboard charger has to condition (convert to high voltage DC) power from the off-board AC charger before supplying it to the battery management system (BMS), the off-board DC charger works without an onboard charger and interfaces directly with the BMS.

In this paper, Texas Instruments will attempt to explain onboard chargers, how they work and why they’re used. We will also explain charging stations and how they interact with onboard charger and EV BMS systems, along with various power-architecture implementations.

Read more here.

You must be logged in to comment

Write a comment

No comments

Sign up to view our publications

Sign up

Sign up to view our downloads

Sign up

Hotspots Specials 2019
24th October 2019
Germany Böblingen, Germany
IoT Solutions World Congress 2019
29th October 2019
Spain Barcelona
Maintec 2019
30th October 2019
United Kingdom NEC, Birmingham
NOAH Conference 2019
30th October 2019
United Kingdom Old Billingsgate, London
AI & Robotics Conference Expo 2019
31st October 2019
United Kingdom etc.venues, London