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MSP430FR6047超声波接口如何外接放大电路

Other Parts Discussed in Thread: MSP430FR6047

我现在手里有一块EVM430FR6047的开发板,现在想用来做明渠水流量计的开发,但现在超声波换能器的激励信号需要100多伏的电压,请问有没有相关的参考电路,目前开发板输出电压无法正常激励换能器