【摘要】 该文首先研究了质子交换膜燃料电池(PEMFC)风机的性能,分析了PEMFC的工作温度对其性能的影响,并给出了控制PEMFC风机的数学模型。然后,对高电压、大电流运算放大器OPA548进行了详细的介绍,设计了用OPA548控制PEMFC风机工作电压的硬件电路,最后,对使用OPA548时应注意的事项进行了讨论。更多还原

【Abstract】 This paper firstly studies the characteristics of the proton exchange membrane fuel cell(PEMFC) fan,analyzes effects of operation temperature of the PEMFC on its performance,and gives mathematical model of controlling the PEMFC fan.Then,this paper detailed introduces the features of high-voltage/high-current operational amplifier OPA548,designes hardware circuits of controlling the PEMFC fan with OPA548.At last,some questions about using OPA548 are discussed.更多还原