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基于MSP Launchpad的低功耗数字多功能表

Other Parts Discussed in Thread: NE555

本设计以MSP430 G2553为核心控制器,搭建了低功耗数字多功能表系统。对于交流电压测量,用AD637真有效值转换芯片将交流信号转换为直流电压后测量;对于电阻测量,阻值较小电阻采用恒流源法测量,阻值电阻采用分压法测量;对于电容的测量,采用NE555震荡法;三极管放大倍数的测量,我们把β转换成电压值来求解;对与信号发生源,我们采用AD9850芯片产生。低功耗是该设计的核心思想。整个系统设计合理,测量精确,较完美地完成了设计要求。

基于MSP Launchpad的低功耗数字多功能表.doc