Hi all
I’m working out an ultrasonic bird’s repeller, the power supply is +12V, using 12F615 to generate 40kHz 50% duty pulse, the circuit is attached.
The values of R3 and R2 are 56Ω, connected in series to the transducer.
From the oscillator scope,[see attached pdf] 1Volt ripples clearly be seen, despite 0.1uF and 1nF capacitors added, is there any way to reduce it?
The Vpp is 6 volts, how should I increase the Vpp, though this would power the wave to travel further distance.
Thanks.
oooky
I’m working out an ultrasonic bird’s repeller, the power supply is +12V, using 12F615 to generate 40kHz 50% duty pulse, the circuit is attached.
The values of R3 and R2 are 56Ω, connected in series to the transducer.
From the oscillator scope,[see attached pdf] 1Volt ripples clearly be seen, despite 0.1uF and 1nF capacitors added, is there any way to reduce it?
The Vpp is 6 volts, how should I increase the Vpp, though this would power the wave to travel further distance.
Thanks.
oooky
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