Re: piezo driver - which way up? - piezo.jpg (1/1)

"dave" schreef in bericht news: snipped-for-privacy@4ax.com...

A lot of providers do not support binaries and/or attachments in their news servers. So scribbling in ASCII is an advantage and very simple using Andy's ASCII-circuit drawing program. Be sure to use a fixed font like Courier New to read it.

Vcc-------+--------+---- Vcc--------+---------- | | | | | | A C| _-_ B C| C| |___|piezo C|auto- +-------C| - +-------C|trans- | C| | | C|former | C|auto- | | C| | C|trans- | | C| input- |/ C|former | input- |/ C| -----| C| | -----| C| pulses |> C| | pulses |> C| | | | | | | +--------+ | | | | | | | _-_ | | |___|piezo | | - | | | GND-------+---------------------- GND-------+-------+---------- created by Andy´s ASCII-Circuit v1.24.140803 Beta

petrus bitbyter

Here's the output circuit of a class E amp used to drive a transducer. We had one amp that delivered a KW to the transducer.

You don't necessarily need to go class E.

Mikek