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hacktastical
hacktastical
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A couple of ideas...

  • Using an H-bridge to drive both sides of the transducer will double your effective swing available from your supply.

  • A square wave oscillator that’s filtered with an L-C low-pass will give you roughly the waveform you need.

Such a thing could be constructed from CMOS buffer logic, including the oscillator. With both-sides drive it would happily work on 5V, which means you could power it from USB. Something like the CD4050 for example: http://www.ti.com/lit/ds/schs046j/schs046j.pdf

With both-sides drive it would happily work on 5V, which means you could power it from USB. Keep in mind you can connect the buffers in parallel to boost the drive current even more.

A couple of ideas...

  • Using an H-bridge to drive both sides of the transducer will double your effective swing available from your supply.

  • A square wave oscillator that’s filtered with an L-C low-pass will give you roughly the waveform you need.

Such a thing could be constructed from CMOS buffer logic, including the oscillator. With both-sides drive it would happily work on 5V, which means you could power it from USB. Something like the CD4050 for example: http://www.ti.com/lit/ds/schs046j/schs046j.pdf

A couple of ideas...

  • Using an H-bridge to drive both sides of the transducer will double your effective swing available from your supply.

  • A square wave oscillator that’s filtered with an L-C low-pass will give you roughly the waveform you need.

Such a thing could be constructed from CMOS buffer logic, including the oscillator. Something like the CD4050 for example: http://www.ti.com/lit/ds/schs046j/schs046j.pdf

With both-sides drive it would happily work on 5V, which means you could power it from USB. Keep in mind you can connect the buffers in parallel to boost the drive current even more.

added 86 characters in body
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hacktastical
hacktastical
  • 58.4k
  • 2
  • 54
  • 166

A couple of ideas...

  • Using an H-bridge to drive both sides of the transducer will double your effective swing available from your supply.

  • A square wave oscillator that’s filtered with an L-C low-pass will give you roughly the waveform you need.

Such a thing could be constructed from CMOS buffer logic, including the oscillator. With both-sides drive it would happily work on 5V, which means you could power it from USB. Something like the CD4050 for example: http://www.ti.com/lit/ds/schs046j/schs046j.pdf

A couple of ideas...

  • Using an H-bridge to drive both sides of the transducer will double your effective swing available from your supply.

  • A square wave oscillator that’s filtered with an L-C low-pass will give you roughly the waveform you need.

Such a thing could be constructed from CMOS buffer logic, including the oscillator. With both-sides drive it would happily work on 5V, which means you could power it from USB.

A couple of ideas...

  • Using an H-bridge to drive both sides of the transducer will double your effective swing available from your supply.

  • A square wave oscillator that’s filtered with an L-C low-pass will give you roughly the waveform you need.

Such a thing could be constructed from CMOS buffer logic, including the oscillator. With both-sides drive it would happily work on 5V, which means you could power it from USB. Something like the CD4050 for example: http://www.ti.com/lit/ds/schs046j/schs046j.pdf

Source Link
hacktastical
hacktastical
  • 58.4k
  • 2
  • 54
  • 166

A couple of ideas...

  • Using an H-bridge to drive both sides of the transducer will double your effective swing available from your supply.

  • A square wave oscillator that’s filtered with an L-C low-pass will give you roughly the waveform you need.

Such a thing could be constructed from CMOS buffer logic, including the oscillator. With both-sides drive it would happily work on 5V, which means you could power it from USB.