Ultra Simple Class D

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H

Hadighorbani

Member
Joined 2010
B

beethovenj

Member
Joined 2010
Connect Trasducer to this circuit

Hi!

Nice simple class D amp!

I was wondering if this amp would work fine in the 38-42 kHz range and what to do to connect it to a high impedance piezoelectric transducer (custom transformer I suppose). I want to start playing with relative high power ultrasounds :)

Thanks so much for any tip!
 
D

Deleted member 148505

I've created a layout for this one.

I added trigger for protection circuit and added gate resistor diode.
Also adjusted some values for slightly higher than +-50V operation.
You can opt for the original values if you want it to run it for lower voltages.

I added the fuse so I can easily route the GND trace haha.
 

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  • 300W-ClassD-Schem.pdf
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S

stewin

Member
Joined 2007
jlester87 said:
I've created a layout for this one.

I added trigger for protection circuit and added gate resistor diode.
Also adjusted some values for slightly higher than +-50V operation.
You can opt for the original values if you want it to run it for lower voltages.

I added the fuse so I can easily route the GND trace haha.
Click to expand...

have you tested it with +/-56vlts successful , do the outputs or gate drivers heat or operate normal at that voltage ?
 
S

SERGIODS

Member
Joined 2010
jlester87 said:
I've created a layout for this one.

I added trigger for protection circuit and added gate resistor diode.
Also adjusted some values for slightly higher than +-50V operation.
You can opt for the original values if you want it to run it for lower voltages.

I added the fuse so I can easily route the GND trace haha.
Click to expand...

you already have it armed?: D
 
Last edited:
tom42107

tom42107

Disabled Account
Joined 2010
stewin said:
but after hearing the clarity of this amplifier i decided to use the original version which has been simulated by norazmi . here is my layout and artwork .
Click to expand...

After reading through this entire thread I've decided to jump in and try to etch my own pcb. There are many different versions of this amp in this thread, but Stewin's layout and artwork look good. I do have a beginner question though. Most of the amps that people are building here are one sided but it looks like Stewin's pcb artwork is two-sided. Is that right?

Tom
 

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  • Class D 200 Wrms with 2 mosfet pcb artwork.jpg
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N

norazmi

Member
Joined 2008
yes its ok for this design because its not so sensitive like ucd. your design seems good to go, but always double check for the component placement with right value. OCP is possible for this module and i`ll give it a try when i have time.

And yes i have one which im always made it because this amp is so cheap and hifi quality, give me your email and i`ll send it to you. you can go with your version and just match the value for the parts or else. :D
 
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