下面是[SM3320-BATT-EV充电电路]的电路图

SM3320-BATT-EV充电控制器参考设计主要特性:

• 12V Lead Acid Battery

• Vin range = 15V to 45V Vmp (50V Voc)

• Max Input Current: Isc = 11A

• MPPT algorithm for optimized photovoltaic applications

• Up to 9A charging current

• Reverse current protection

• Trickle charge and fast charge mode

• Up to 98% converter efficiency

• 14.2V max charge voltage, 13.5V floating voltage

• Output voltage set-points can be re programmed

图4.SM3320-BATT-EV充电控制器参考设计外形图

The SolarMagic SM72242 enhanced MPPT controller and SM72295 Full Bridge Driver is a great starting point for various PV battery based charging design. The charge controller reference design provides highly integrated functionality with a wide input voltage range for compatibility with most commercially available solar panels, current driving capabilities up to 100A, multi-chemistry battery support (e.g. Lithium Ion, Lead Acid), advanced protection and battery management features, along with I2C programming.


图5.充电控制器参考设计方框图

图6.充电控制器系统电路图(1)

图7.充电控制器系统电路图(2)