Diode details

[imraneesa]

Hello all,

Can anybody find what diode is this. Picture attached. It is connected between drain and source of low side output mosfet which is driven by IRS2092s IC. Marking on diode is 10L

 

[Perry Babin]

You didn't say what the amp was but the attached seems similar. The diodes in the diagram should work (if they will fit).

 

[imraneesa]

It is dB drive Neo5v2.
The diodes in the drawing is also there in the board I have highlighted them with red. But the one I highlight with white is not in the schematics.

 

[Perry Babin]

That's all I have.

 

[imraneesa]

Is there a possibility of 10v zener there?

 

[Perry Babin]

It appears to be connected between the negative rail and the FET side of the output inductor. Is that corrrect?

 

[imraneesa]

Yes. Without that diode ic oscillates normal.

 

[Perry Babin]

That diode must be either a rectifier diode or a TVS.

What's the rail voltage in this amp?