TI Stellaris LM3S2000混合动力汽车电池充电器解决方案

TI公司的Level 3电动/混合动力汽车电池充电器采用数字功率控制器,通信器件,高性能驱动器以及接口器件. Level 3充电器包括从AC产生DC电压的带PFC的AC/DC转换器,DC/DC转换器,其核心器件是实时C2000系列MCU.本文介绍了EV/HEV充电器方框图以及EV/HEV充电器主控制器Stellaris LM3S2000 32位MCU主要特性,方框图, 开发板主要特性和方框图,电路图和PCB元件布局图.
Block Diagram (SBD) EV/HEV Charger Level 3 using TI’s Digital Power Controllers, communication devices, high performance drivers and interface devices.
Plug-in Hybrid Electric Vehicles (PHEV) and Battery Electric Vehicles (BEV) are two quickly emerging technologies which use powerful electric motors and high voltage battery packs as the propulsion and energy sources. Since batteries have a finite energy capacity, PHEV and BEV must be recharged on a periodic basis, typically by connecting to the power grid. When doing so, some form of communication (PLC, wireless, or RFID) might be used to manage the charging activity and aid in identifying and authenticating the vehicle or owner for billing purposes. Level 3 charging will play a key role in the public charging area in order to reduce the charging time and make it more feasible for the user to benefit from on-the-go charging.
The Level 3 charging system for these vehicles consists of an AC/DC converter to generate a DC voltage from the AC line. This incoming power needs to undergo power factor correction (PFC) to boost the power factor to meet regional regulatory standards. At the heart of the inverter is a real-time C2000 microcontroller. This controller is programmed to perform the control loops for all necessary power management functions, including AC/DC with PFC and DC/DC to create the necessary charge profile for the battery. The C2000 controller contains advanced peripherals such as high precision PWM outputs and ADCs, and is designed to read the ADC and adjust the PWM within a single clock cycle making real time control possible.
While the C2000 manages the power, the...