Hi,
so you want to generate wave packets of 200kHz pulses with a variable repitition rate and variable duty cycle.
I guess every Arduino hardware can do this for a couple of $.
Whether this is suitable for you depends on a lot of parameters / requirements.
You say "changing". But don´t say what this means.
Is it manually by adjusting a potentiometer, or using UP ad DOWN buttons, or via internet interface, IR remote ...? or just automatically
What range, what resolution?
Is it like a "gate" where the first and the last pulse might be incomplete, or do you always want an integer count of identical pulses?
Is "a wave" a 50% duty cycle square wave, or sine, or any other waveform?
I expect a simple sketch with an as complete as possible description of the pulses and the parameters.
Klaus
Thank you for your answer.Hi,
so you want to generate wave packets of 200kHz pulses with a variable repitition rate and variable duty cycle.
I guess every Arduino hardware can do this for a couple of $.
Whether this is suitable for you depends on a lot of parameters / requirements.
You say "changing". But don´t say what this means.
Is it manually by adjusting a potentiometer, or using UP ad DOWN buttons, or via internet interface, IR remote ...? or just automatically
What range, what resolution?
Is it like a "gate" where the first and the last pulse might be incomplete, or do you always want an integer count of identical pulses?
Is "a wave" a 50% duty cycle square wave, or sine, or any other waveform?
I expect a simple sketch with an as complete as possible description of the pulses and the parameters.
Klaus
The 1st choice is a good "Buy" option for this question or the PA98revT below.MX200 – High Performance Piezo Driver | PiezoDrive
MX200 is a complete power supply & high-performance linear amplifier module for driving piezoelectric actuators. MX200 can drive stack actuators & standard.www.piezodrive.com
A high-bandwidth voltage amplifier for driving piezoelectric actuators in high-speed atomic force microscopy
High-speed atomic force microscopy (HS-AFM) is a technique capable of revealing the dynamics of biomolecules and living organisms at the nanoscale with a rpubs.aip.org
A couple pf possibilities..
Note post #10 done to show easy generation of waveforms, burst, modulated, etc..
To show OP this is fairly simple to do with a single chip SOC and very little code.
Regards, Dana.
Some improvements on output power gain and envelope risetime due to lowering high series Q and adding compensation voltage gain of 4 to 8 depending on Rs damping resistor.Although 200 kHz is the specified frequency, your piezo transducer may lean toward its own individual frequency to resonate at (which may be identical or slightly different). You may be able to use this resonance to drive an oscillating circuit. A resistor generates voltage changes at precisely the moments when when current changes direction, causing the op amp to change state.
As shown in the simulation.
The low-ohm resistor is an added component. The series LC may represent the piezo's own resonant frequency, or the LC may be installed and adjusted to resonate at the preferred frequency, while also limiting current through the piezo.
View attachment 186392
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