Well a piezo speaker looks more like a capacitor than a inductor and resistor like a dynammic speaker using a voice coil. Not sure how Class D would hanlde this load plus a piezo is more efficient than a dynamic so fi you want Class D for efficiency you may not need it really. Maybe someone who has tried to do what you are can give some input.
-SL
-SL
Curious to know what kind of project it is.
Is building the amp yourself a requirement of the project or are you just trying to save some money. Otherwise, any old amp will do if all your doing is driving a piezo. But you need to add a resistor at least, or you could burn up an amp, Class D or otherwise.
Is building the amp yourself a requirement of the project or are you just trying to save some money. Otherwise, any old amp will do if all your doing is driving a piezo. But you need to add a resistor at least, or you could burn up an amp, Class D or otherwise.
Do you just want to reproduce 60 kHz constantly and nothing else ?
In this case there are simpler solutions than a class d amp.
How about a switching stage (50% duty cycle) followed by a tank circuit ? The latter could even be used to transform the audio to a higher voltage if needed.
Regards
Charles
In this case there are simpler solutions than a class d amp.
How about a switching stage (50% duty cycle) followed by a tank circuit ? The latter could even be used to transform the audio to a higher voltage if needed.
Regards
Charles
Piezo driver
Hi !
You could look into Apex Micortechnology, they had good class D
piezo driver.
http://eportal.apexmicrotech.com/mainsite/
Hi !
You could look into Apex Micortechnology, they had good class D
piezo driver.
http://eportal.apexmicrotech.com/mainsite/
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