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thanks BradtheRad, I am using raspberry pi to generate 40khz pulse, transducer can operate at 16vpp. How can I combine between your method with my circuit ? because in transducer have a capacitor 2.5nF, it can is cause of this problem?
I want to generate a pulse that have frequency 40khz and amplitude 20VPP to MA40s4s ultrasonic sensor operate. I use raspberry to generate pulse 40khz-5Vpp then using a IC CD4049BE to boost it into 20vpp as in the below figure. I have encountered the problems is that when i not insert sensor...
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